Deltabar PMD75 Datasheet PDF
Deltabar PMD75 Datasheet PDF
Deltabar PMD75 Datasheet PDF
Technical Information
Deltabar S
PMD75, FMD77, FMD78
Differential pressure measurement and pressure
measurement
Applications
The device is used for the following measuring tasks:
• Flow measurement (volume flow or mass flow) in conjunction with differential
pressure sensors in gases, vapors and liquids
• Level, volume or mass measurements in liquids
• High process temperatures up to 400 °C (752 °F) possible with diaphragm seal
mount
• Differential pressure monitoring, e.g. of filters and pumps
Your benefits
• Very good reproducibility and long-term stability
• High reference accuracy up to 0.035 %
• Turn down up to 100:1, higher on request
• Used for flow and differential pressure monitoring up to SIL3, certified to IEC
61508 by TÜV SÜD
• High level of safety during operation thanks to function monitoring from the
measuring cell to the electronics
• The patented TempC membrane for the diaphragm seal reduces measured errors
caused by environmental and process temperature influences to a minimum
• Easy electronic replacement guaranteed with HistoROM®/M-DAT
• Uniform platform for differential pressure, hydrostatics and pressure (Deltabar S –
Deltapilot S – Cerabar S)
• Practical user navigation for quick and easy commissioning
• Extensive diagnostic functions
• Cost-effective installation with Deltabar S FMD77, capillary on low-pressure side
Deltabar S PMD75, FMD77, FMD78
Table of contents
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Deltabar S PMD75, FMD77, FMD78
Process connections FMD77 with diaphragm seal . . . . . . . 63 Configuration data sheet . . . . . . . . . . . . . . . . . . . . . . . 109
Process connections FMD77 with diaphragm seal, low-
pressure side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
FMD78: Selecting the process connection and capillary
HistoROM®/M-DAT . . . . . . . . . . . . . . . . . . . . . . . . . . 112
line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Welding flanges and welding neck . . . . . . . . . . . . . . . . 112
FMD78 basic device . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Manifolds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Process connections FMD78 with diaphragm seal . . . . . . . 66
Additional mechanical accessories . . . . . . . . . . . . . . . . 112
Process connections FMD78 with diaphragm seal . . . . . . . 67
Process connections FMD78 with diaphragm seal . . . . . . . 69
Process connections FMD78 with diaphragm seal . . . . . . . 71 Supplementary documentation . . . . . . . . . . . . . . 113
Process connections FMD78 with diaphragm seal . . . . . . . 72 Field of Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Process connections FMD78 with diaphragm seal . . . . . . . 74 Technical Information . . . . . . . . . . . . . . . . . . . . . . . . 113
Process connections FMD78 with diaphragm seal . . . . . . . 75 Special Documentation . . . . . . . . . . . . . . . . . . . . . . . . 113
Process connections FMD78 with diaphragm seal . . . . . . . 76 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . 113
Separate housing: Wall and pipe mounting with mounting Brief Operating Instructions . . . . . . . . . . . . . . . . . . . . . 113
bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Functional safety manual (SIL) . . . . . . . . . . . . . . . . . . . 113
Materials not in contact with process . . . . . . . . . . . . . . . 79 Overfill protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Safety Instructions (XA) . . . . . . . . . . . . . . . . . . . . . . . 113
Materials in contact with process . . . . . . . . . . . . . . . . . . 83 Installation/Control Drawings . . . . . . . . . . . . . . . . . . . 114
Fill fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Operability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Operating concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Local operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Remote operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
HistoROM®/M-DAT (optional) . . . . . . . . . . . . . . . . . . . 92
System integration . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
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Document information
Document function The document contains all the technical data on the device and provides an overview of the
accessories and other products that can be ordered for the device.
Symbol Meaning
DANGER!
DANGER This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING!
WARNING This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION!
CAUTION This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTE!
NOTICE This symbol contains information on procedures and other facts which do not result in
personal injury.
Electrical symbols
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
A Reference to page
Reference to graphic
Visual inspection
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Deltabar S PMD75, FMD77, FMD78
Symbols in graphics
Symbol Meaning
1. , 2. , 3. … Series of steps
A, B, C, ... Views
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Deltabar S PMD75, FMD77, FMD78
p
0
LRL LRV URV URL MWP OPL
A0029505
1 OPL The OPL (over pressure limit = sensor overload limit) for the measuring device depends on the lowest-rated element,
with regard to pressure, of the selected components, i.e. the process connection has to be taken into consideration in
addition to the measuring cell. Also observe pressure-temperature dependency. For the relevant standards and
additional information, see the "Pressure specifications"→ 47 section.
The OPL may only be applied for a limited period of time.
2 MWP The MWP (maximum working pressure) for the sensors depends on the lowest-rated element, with regard to
pressure, of the selected components, i.e. the process connection has to be taken into consideration in addition to the
measuring cell. Also observe pressure-temperature dependency. For the relevant standards and additional
information, see the "Pressure specifications"→ 47 section.
The MWP may be applied at the device for an unlimited period.
The MWP can also be found on the nameplate.
p - Pressure
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A0029545
1 Calibrated/adjusted span
2 Zero point-based span
3 URL sensor
Example
URL
TD =
|URV - LRV|
PROFIBUS®
Registered trademark of the PROFIBUS User Organization, Karlsruhe, Germany
FOUNDATIONTMFieldbus
Registered trademark of the FieldComm Group, Austin, Texas, USA
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Deltabar S PMD75, FMD77, FMD78
+ –
A0023922
PMD75
A0023923
A0023924
Field of application
PMD75:
• Flow
• Level
• Differential pressure
• Pressure
FMD77:
• Level
• Differential pressure
FMD78:
• Level
• Differential pressure
Process connections
PMD75:
• 1/4 – 18 NPT
• RC 1/4
FMD77 low-pressure side (–):
• 1/4 – 18 NPT
• RC 1/4
• Alternatively available with capillary and diaphragm seal
FMD77 high-pressure side (+):
• DN 50 – DN 100
• ASME NPS 2" – 4"
• JIS 80A – 100A
FMD78:
Wide range of diaphragm seals
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Measuring ranges
• PMD75: from –10 to +10 mbar (-0.15 to +0.15 psi) to –40 to +40 bar (-600 to +600 psi)
As gauge or absolute pressure sensor: up to 250 bar (3750 psi)
• FMD77: from –100 to +100 mbar (-1.5 to +1.5 psi) to –16 bar to +16 bar (-240 to +240 psi)
• FMD78: from –100 to +100 mbar (-1.5 to +1.5 psi) to –40 to +40 bar (-600 to +600 psi)
OPL
PMD75:
on one side: up to 420 bar (6 300 psi)
on both sides: up to 630 bar (9 450 psi)
As gauge or absolute pressure sensor: up to 375 bar (5625 psi)
FMD77:
on one side: up to 160 bar (2 400 psi)
on both sides: up to 240 bar (3 600 psi)
FMD78:
on one side: up to 160 bar (2 400 psi)
on both sides: up to 240 bar (3 600 psi)
Reference accuracy
• PMD75: up to ±0.035 % of the set span
• FMD77: up to ±0.075 % of the set span
• FMD78: up to ±0.075 % of the set span
Supply voltage
Supply voltage non-Ex
• 4 to 20 mA HART: 10.5 to 45 V DC
• PROFIBUS PA and FOUNDATION Fieldbus: 9 to 32 V DC
Supply voltage Ex ia
10.5 to 30 V DC
Output
4 to 20 mA with superimposed HART protocol, PROFIBUS PA or FOUNDATION Fieldbus
Options
• HistoROM®/M-DAT memory chip
• PMD75: with blind flange on LP side for gauge and absolute pressure measurement
Specialties
PMD75:
• pstat up to 420 bar (6 300 psi)
• Process isolating diaphragm: tantalum
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Deltabar S PMD75, FMD77, FMD78
FMD77:
For extreme medium temperatures
FMD78:
Wide range of diaphragm seals
2
1 3
p1 p2
4 4
A0023919
1 Measuring element
2 Middle diaphragm
3 Filling oil
4 Process isolating diaphragm
The process isolating diaphragms are deflected on both sides by the acting pressures. A filling oil
transfers the pressure to a resistance bridge (semiconductor technology). The change in the bridge
output voltage, which depends on the differential pressure, is measured and processed
Advantages:
• Standard system pressures: 160 bar (2 400 psi) up to 420 bar (6 300 psi)
• High long-term stability
• Very high single-sided overload resistance
A B
– – ∆p
h= ρ g
h
+
+
A0023921
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Deltabar S PMD75, FMD77, FMD78
Your benefits
• Selection of the level operating mode which is optimum for your application in the device software
• Volume and mass measurements in any container shapes by means of a freely programmable
characteristic curve
• Choice of diverse level units with automatic unit conversion
• A customized unit can be specified.
• Has a wide range of uses, e.g.
– for level measurement in vessels with pressure overlay
– in the event of foam formation
– in containers with agitators or screen fittings
– in the event of liquid gases
– for standard level measurement
Flow measurement
Flow measurement with Deltabar S and primary device:
A B
+ – + –
Q ~ ∆p p1 p2 Q ~ ∆p p1 p2
Q Q
A0023920
A Orifice plate
B Pitot tube
Q Flow
Δp Differential pressure, Δp = p1 – p2
Your benefits
• Choice of four flow modes of operation: volume flow, corrected volume flow (European norm
conditions), standard volume flow (American standard conditions) and mass flow
• Choice of diverse flow units with automatic unit conversion
• A customized unit can be specified.
• Low flow cut off: when activated, this function suppresses small flows which can lead to large
fluctuations in the measured value.
• Contains two totalizers as standard. One totalizer can be reset to zero.
• The totalizing mode and unit can be individually set for each totalizer. This allows independent
daily and annual quantity totalizing.
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Deltabar S PMD75, FMD77, FMD78
Input
Measured variable Measured process variables
Differential pressure, pressure
Measuring range
3)
Sensor Maximum sensor measuring Smallest calibratable MWP OPL remains stable Option
range span 1) for a minimum of
operating
lower (LRL) upper (URL) on one side on both pressure 2) PN 160
sides
[mbar (psi)] [mbar (psi)] [mbar (psi)] [mbar (psi)] [bar (psi)] [bar (psi)] [bar (psi)] [mbarabs (psiabs)]
10 (0.15) –10 (-0.15) +10 (+0.15) 0.25 (0.00375) 160 (2400) 160 (2400) 240 (3600) 7B
(PMD75 only)
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Deltabar S PMD75, FMD77, FMD78
2)
Sensor Maximum sensor measuring Smallest MWP OPL remains stable for a Option
range calibratable span minimum of
operating pressure 1)
lower (LRL) upper (URL) on one side on both
sides
bar (psi) bar (psi) bar (psi) bar (psi) bar (psi) bar (psi) mbarabs (psiabs)
160 (2400) rel -1 (-15) 160 (2400) 40 (600) 160 (2400) 240 (3600) - 3) 10 7Q
160 (2400) abs 0 160 (2400) 4 (60) 160 (2400) 240 (3600) - 3) 10 7V
250 (3750) rel -1 (-15) 250 (3750) 40 (600) 250 (3750) 375 (5625) - 3) 10 7R
3)
250 (3750) abs 0 250 (3750) 4 (60) 250 (3750) 375 (5625) - 10 7W
1) The minimum operating pressure indicated in the table applies to silicone oil under reference operating conditions. Min. operating pressure at
85 °C (185 °F) for silicone oil: up to 10 mbarabs (0.15 psiabs).
2) Product Configurator, order code for "Nominal range; PN"
3) Available only with blind flange on LP side.
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Deltabar S PMD75, FMD77, FMD78
Output
Output Signal • 4 to 20 mA with superimposed digital communication protocol HART, 2-wire
• Digital communication signal PROFIBUS PA (Profile 3.0), 2-wire
– Signal coding: Manchester Bus Powered (MBP): Manchester II
– Transmission rate: 31.25 KBit/s voltage mode
• Digital communication signal FOUNDATION Fieldbus, 2-wire
– Signal coding: Manchester Bus Powered (MBP): Manchester II
– Transmission rate: 31.25 KBit/s voltage mode
on Display on Display
off off
R R
SW /min
SW /min
HART HART
damp.
damp.
FIELD COMMUNICATION PROTOCOL FIELD COMMUNICATION PROTOCOL
Sensor Sensor
– + E – + E
A0021280
1)
Option
4 to 20mA HART B A C
PROFIBUS PA N M O
FOUNDATION Fieldbus Q P R
Signal range 4 to 20 mA
3.8 mA to 20.5 mA
PROFIBUS PA
As per NAMUR NE43.
Can be set in the Analog Input Block.
Options:
• Last Valid Out Value (factory setting)
• Fail Safe Value
• Status bad
FOUNDATION Fieldbus
As per NAMUR NE43.
Can be set in the Analog Input Block.
Options:
• Last Good Value
• Fail Safe Value (factory setting)
• Wrong Value
Load 4 to 20 mA HART
In order to guarantee sufficient terminal voltage in two-wire devices, a maximum load resistance R
(including line resistance) must not be exceeded depending on the supply voltage U0 of the supply
unit. In the following load diagrams, observe the position of the jumper and the explosion protection:
14 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Test Test
A B
R Lmax R Lmax
[W ] [W]
1500 1456
1282 1239
847 804
413 369
10.5 20 30 40 45 U 11.5 20 30 40 45 U
[V] [V]
1 1
2 2
When operating via a handheld terminal or via a PC with an operating program, a minimum
communication resistance of 250 Ω must be taken into account.
Dead time, time constant Presentation of the dead time and the time constant:
I
100 %
90 %
63 %
t1 t2 t
t3
A0019786
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Deltabar S PMD75, FMD77, FMD78
Dynamic behavior,
current output
Type Measuring cell Dead time (t1) [ms] Time constant T63 (t2) [ms] Time constant T90 (t3) [ms]
Dynamic behavior Digital A typical burst rate of 300 ms results in the following behavior:
output (HART electronics)
Type Measuring cell Dead time (t1) [ms] Dead time (t1) [ms] + Dead time (t1) [ms] +
Time constant T63 (t2) [ms] Time constant T90 (t3) [ms]
Reading cycle
• Acyclic: max. 3/s, typically 1/s (depending on command # and number of preambles)
• Cyclic (burst): max. 3/s, typically 2/s
The device commands the BURST MODE functionality for cyclical value transmission via the HART
communication protocol.
Response time
• Acyclic: min. 330 ms, typically 590 ms (depending on command # and number of preambles)
• Cyclic (burst): min. 160 ms, typically 350 ms (depending on command # and number of
preambles)
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Deltabar S PMD75, FMD77, FMD78
Dynamic behavior A typical PLC cycle time of 1 s results in the following behavior:
PROFIBUS PA
Type Measuring cell Dead time (t1) [ms] Dead time (t1) [ms] + Dead time (t1) [ms] +
Time constant T63 (t2) [ms] Time constant T90 (t3) [ms]
Response time
• Acyclic: Approx. 60 ms to 70 ms (depending on Min. Slave Interval)
• Cyclic: Approx. 10 ms to 13 ms (depending on Min. Slave Interval)
Dynamic behavior A typical configuration for the macro cycle time (host system) of 1 s results in the following
FOUNDATION Fieldbus behavior:
Type Measuring cell Dead time (t1) [ms] Dead time (t1) [ms] + Dead time (t1) [ms] +
Time constant T63 (t2) [ms] Time constant T90 (t3) [ms]
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Deltabar S PMD75, FMD77, FMD78
Reading cycle
• Acyclic: Typically 10/s
• Cyclic: max. 10/s (dependent on the number and type of function blocks used in a closed-control
loop)
Response time
• Acyclic: Typically 100 ms (for standard bus parameter settings)
• Cyclic: max. 20 ms (for standard bus parameter settings)
1) Product Configurator, "Additional options 1" and "Additional options 2" ordering feature
04.00.zz, PROFIBUS PA 78
HART specification • 5
• 7
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Deltabar S PMD75, FMD77, FMD78
HART device variables The measured values are assigned to the device variables as follows:
Measured values for PV (primary variable)
• Pressure
• Flow
• Level
• Tank content
Measured values for SV, TV (second and third variable)
• Pressure
• Totalizer
Measured values for QV (fourth variable)
Temperature
DD files • www.endress.com
• www.profibus.org
Output values Measured value for PV (via Analog Input Function Block)
• Pressure
• Level
• Flow
• Tank content
Measured value for SV
• Pressure
• Temperature
Measured value for QV
Totalizer
Input values Input value sent from PLC, can be shown on display
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Deltabar S PMD75, FMD77, FMD78
Choice of "Link Master" and "Basic Yes, factory setting is Basic Device
Device"
Permanent entries 44 1
Client VCRs 0 0
Server VCRs 5 10
Source VCRs 8 43
Sink VCRs 0 0
Subscriber VCRs 12 43
Publisher VCRs 19 43
Link settings
Slot time 4 4
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Deltabar S PMD75, FMD77, FMD78
Transducer Blocks
TRD1 Block Contains all parameters related to • Pressure, flow or level (channel 1)
the measurement • Process temperature (channel 2)
Diagnostic Block Contains diagnostic information Error code via DI channels (channel 0 to 16)
Function blocks
Resource Block This block contains all the data that uniquely identifies the device; it 1 enhanced enhanced
is an electronic version of a nameplate for the device.
Analog Input The AI Block receives the measuring data from the Sensor Block, 3 45 ms 45 ms enhanced enhanced
Block 1 (selectable via a channel number) and makes the data available to (without
Analog Input other function blocks at its output. Enhancement: Digital outputs for trend and
Block 2 process alarms, fail safe mode alarm
Analog Input reports)
Block 3
Digital Input This block contains the discrete data of the Diagnose Block (selectable 1 40 ms 30 ms standard enhanced
Block via a channel number 0 to 16) and provides them for other blocks at
the output.
Digital Output This block converts the discrete input and thus initiates an action 1 60 ms 40 ms standard enhanced
Block (selectable via a channel number) in the DP Flow Block or in the
Service Block. Channel 1 resets the counter for max. pressure
transgressions.
PID Block This block is used as a proportional-integral-derivative controller and 1 120 ms 70 ms standard enhanced
can be used universally for closed-loop-control in the field. It enables
cascade mode and feedforward control. Input IN can be indicated on
the display. The selection is performed in the Display Block
(DISPLAY_MAIN_LINE_CONTENT).
Arithmetic This block is designed to permit simple use of popular measurement 1 50 ms 40 ms standard enhanced
Block math functions. The user does not have to know how to write
equations. The math algorithm is selected by name, chosen by the
user for the function to be performed.
Input Selector The Input Selector Block facilitates the selection of up to four inputs 1 35 ms 35 ms standard enhanced
Block and generates an output based on the configured action. This block
normally receives its inputs from AI Blocks. The block performs
maximum, minimum, average and ‘first good’ signal selection. Inputs
IN1 to IN4 can be indicated on the display. The selection is performed
in the Display Block (DISPLAY_MAIN_LINE_CONTENT).
Signal The Signal Characterizer Block has two sections, each with an output 1 30 ms 40 ms standard enhanced
Characterizer that is a non-linear function of the respective input. The non-linear
Block function is generated by a single look-up table with 21 arbitrary x-y
pairs.
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Deltabar S PMD75, FMD77, FMD78
Integrator Block The Integrator Block integrates a variable as a function of the time or 1 35 ms 40 ms standard enhanced
accumulates the counts from a Pulse Input Block. The block can be
used as a totalizer that counts up until a reset, or as a batch totalizer
whereby the integrated value is compared against a target value
generated before or during the control routine and generates a binary
signal when the target value is reached.
Analog Alarm This block contains all process alarm conditions (working like a 1 35 ms 35 ms standard enhanced
Block comparator) and represents them at the output.
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Deltabar S PMD75, FMD77, FMD78
Power supply
LWARNING
Electrical safety is compromised by an incorrect connection!
‣ When using the measuring device in hazardous areas, the relevant national standards and
regulations as well as the Safety Instructions or Installation or Control Drawings must also be
observed.→ 113.
‣ All explosion protection data are given in separate documentation which is available upon
request. The Ex documentation is supplied as standard with all Ex devices→ 113.
‣ Devices with integrated overvoltage protection must be grounded→ 26.
‣ Protective circuits against reverse polarity, HF influences and overvoltage peaks are integrated.
1 2
Test
3
Test
7
6
A0019989
1 Housing
2 Supply voltage
3 4 to 20 mA
4 Devices with integrated overvoltage protection are labeled "OVP" (overvoltage protection) here.
5 External ground terminal
6 4 to 20 mA test signal between positive and test terminal
7 Internal ground terminal
8 Jumper for 4 to 20 mA test signal
1 2
3
4
A0020158
1 Housing
2 Supply voltage
3 Devices with integrated overvoltage protection are labeled "OVP" (overvoltage protection) here.
4 External ground terminal
5 Internal ground terminal
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Deltabar S PMD75, FMD77, FMD78
Electronic version Jumper for 4 to 20 mA test signal in Jumper for 4 to 20 mA test signal in
"Test" position (delivery status) "Non-test" position
Test • Measurement of 4 to 20 mA test signal via the positive and test terminal:
Possible. (Thus, the output current can be measured without interruption via
the diode.)
• Delivery status
• Minimum supply voltage: 11.5 V DC
A0019992
Test • Measurement of 4 to 20 mA test signal via positive and test terminal: Not
possible.
• Minimum supply voltage: 10.5 V DC
A0019993
PROFIBUS PA
• Version for non-hazardous areas: 9 to 32 V DC
• Ex ia: 10.5 to 30 V DC
FOUNDATION Fieldbus
• Version for non-hazardous areas: 9 to 32 V DC
• Ex ia: 10.5 to 30 V DC
Current consumption • PROFIBUS PA: 13 mA ±1 mA, switch-on current corresponds to IEC 61158-2, Clause 21
• FOUNDATION Fieldbus: 15.5 mA ±1 mA, switch-on current corresponds to IEC 61158-2, Clause
21
FOUNDATION Fieldbus
The digital communication signal is transmitted to the bus via a two-wire connection. The bus also
provides the power supply. For further information on the network structure and grounding and for
further bus system components such as bus cables, see the relevant documentation, e.g. Operating
Instructions BA00013S "FOUNDATION Fieldbus Overview" and the FOUNDATION Fieldbus Guideline.
Terminals • Supply voltage and internal ground terminal: 0.5 to 2.5 mm2 (20 to 14 AWG)
• External ground terminal: 0.5 to 4 mm2 (20 to 12 AWG)
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Deltabar S PMD75, FMD77, FMD78
ATEX II 1/2 D, II 1/3 D, II 1/2 GD Ex ia, Metal M20x1.5 (Ex e) 7 to 10.5 mm (0.28 to 0.41 in)
II 1 GD Ex ia, II 3 G Ex nA
A B – +
7
+ – 8 6
1
2 5
3 4
Han7D
+ –
A0019990
4 3
1 2
A0011175
1 Signal +
2 Not assigned
3 Signal –
4 Ground
Endress+Hauser offers the following accessories for devices with an M12 plug:
Plug-in jack M 12x1, straight
• Material: Body PA; coupling nut CuZn, nickel-plated
• Degree of protection (fully locked): IP67
• Order number: 52006263
Plug-in jack M 12x1, elbowed
• Material: Body PBT/PA; coupling nut GD-Zn, nickel-plated
• Degree of protection (fully locked): IP67
• Order number: 71114212
Cable 4x0.34 mm2 (20 AWG) with M12 socket, elbowed, screw plug, length 5 m (16 ft)
• Material: Body PUR; coupling nut CuSn/Ni; cable PVC
• Degree of protection (fully locked): IP67
• Order number: 52010285
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Deltabar S PMD75, FMD77, FMD78
1 3
2 4
A0011176
1 Signal –
2 Signal +
3 Not assigned
4 Shielding
PROFIBUS PA
Use a twisted, shielded twin-core cable, preferably cable type A.
For further information regarding cable specifications, see the Operating Instructions
BA00034S "PROFIBUS DP/PA: Guidelines for planning and commissioning", the PNO guideline
2.092 "PROFIBUS PA User and Installation Guideline" and IEC 61158-2 (MBP).
FOUNDATION Fieldbus
Use a twisted, shielded twin-core cable, preferably cable type A.
For further information on the cable specifications, see Operating Instructions BA00013S
"FOUNDATION Fieldbus Overview", FOUNDATION Fieldbus Guideline and IEC 61158-2 (MBP).
Start-up current 12 mA
Residual ripple Without influence on 4 to 20 mA signal up to ±5% residual ripple within the permitted voltage
range [according to HART hardware specification HCF_SPEC-54 (DIN IEC 60381-1)].
NOTICE
Device could be destroyed!
‣ Devices with integrated overvoltage protection must be grounded.
26 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Total performance of Transmitter→ 28 total performance comprises the reference accuracy, the ambient temperature
transmitter effect and the static pressure and is calculated using the following formula:
E1 = Reference accuracy → 27
E2 = Ambient temperature effect per ±28 °C (50 °F) (corresponds to the range of
–3 to +53 °C (+27 to +127 °F)) → 30
500 mbar (7.5 psi), 3 bar (45 psi) • TD ≤ 15:1 = ±0.05 TD ≥ 1:1 = ±0.035
16 bar (240 psi), 40 bar (600 psi) • TD > 15:1 = ±[0.0015 · TD + 0.0275]
1) Reference accuracy comprises the non-linearity [DIN EN 61298-2] including the hysteresis [DIN EN 61298-2] and the non-repeatability [DIN EN
61298-2] in accordance with the limit point method as per [DIN EN 60770]. Reference accuracy for standard up to TD 100:1, for platinum up to
TD 5:1. Valid for all membrane materials.
Endress+Hauser 27
Deltabar S PMD75, FMD77, FMD78
- • TD ≤ 15:1 = ±0.1
40 bar (600 psi)
• TD > 15:1 = ±[0.006 · TD + 0.01]
1) Reference accuracy comprises the non-linearity [DIN EN 61298-2] including the hysteresis [DIN EN 61298-2] and the non-repeatability [DIN EN
61298-2] in accordance with the limit point method as per [DIN EN 60770]. Reference accuracy for standard up to TD 100:1. The specifications
refer to the calibrated span / upper range value (URV).
2) FMD77/FMD78: No diaphragm seal errors are taken into account. Diaphragm seal errors can be calculated separately in the Applicator
diaphragm seal calculation module. Link to online tool Applicator: www.endress.com/applicator → Sizing Diaphragm Seal
Please refer to the next chapter “Detailed performance explanation and calculation” for further
explanations on "Ambient temperature effect" as well as "Static pressure effect" .
Total performance –
Specification values
TD 1:1 TD 2:1 TD 3:1 TD 4:1 TD 5:1 TD 1:1 TD 2:1 TD 3:1 TD 4:1 TD 5:1
10 mbar (0.15 psi) ±0.30 ±0.52 ±0.74 ±0.96 ±1.18 ±0.26 ±0.44 ±0.61 ±0.78 ±0.96
30 mbar (0.45 psi) ±0.26 ±0.41 ±0.56 ±0.72 ±0.88 ±0.24 ±0.38 ±0.52 ±0.67 ±0.81
100 mbar (1.5 psi) ±0.20 ±0.27 ±0.34 ±0.41 ±0.49 ±0.20 ±0.26 ±0.33 ±0.40 ±0.47
500 mbar (7.5 psi) ±0.11 ±0.14 ±0.17 ±0.20 ±0.23 ±0.10 ±0.13 ±0.16 ±0.19 ±0.22
3 bar (45 psi) ±0.14 ±0.18 ±0.23 ±0.28 ±0.33 ±0.11 ±0.13 ±0.16 ±0.18 ±0.20
16 bar (240 psi) ±0.12 ±0.16 ±0.20 ±0.25 ±0.30 ±0.10 ±0.12 ±0.14 ±0.16 ±0.18
40 bar (600 psi) ±0.12 ±0.16 ±0.20 ±0.25 ±0.30 ±0.10 ±0.12 ±0.14 ±0.16 ±0.18
160 bar (2 400 psi) rel/abs ±0.17 ±0.20 ±0.24 ±0.28 ±0.32 -
250 bar (3 750 psi) rel/abs
1) The specification values apply to the temperature range per ±28 °C (50 °F) (corresponds to the range of –3 to +53 °C (+27 to +127 °F)) for all
measuring cells. The specifications apply to a static pressure of 7 bar (105 psi) for measuring cells of 10 mbar (0.15 psi) to 500 mbar (7.5 psi),
for larger measuring cells of 70 bar (1 050 psi). The specification values apply to the analog output (i.e. including electronics errors). The
specification values apply to membrane material AISI 316L (1.4435), Alloy C .
28 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
1) FMD77FMD78: No diaphragm seal errors are taken into account. Diaphragm seal errors can be calculated
separately in the Applicator diaphragm seal calculation module. Link to online tool Applicator:
www.endress.com/applicator → Sizing Diaphragm Seal
Endress+Hauser 29
Deltabar S PMD75, FMD77, FMD78
Detailed Performance To calculate the total performance outside the temperature range of –3 to +53 °C (+27 to +127 °F) or
Explanation and Calculation for a membrane material other than 1.4435/316L or Alloy C 276, please refer to the following
sections: "Ambient temperature effect", "Static pressure effect" and "Calculating the total
performance" 1).
PMD75/FMD77/FMD78: main temperature error E2M as % per ±28 °C (50 °F) (corresponds to the range
of –3 to +53 °C (+27 to +127 °F))
The specifications refer to the calibrated span/Upper Range Value (URV).
1) FMD77FMD78: No diaphragm seal errors are taken into account. Diaphragm seal errors can be calculated separately in the Applicator
diaphragm seal calculation module. Link to online tool Applicator: www.endress.com/applicator → Sizing Diaphragm Seal
30 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
For all measuring cells Analog output (4 to 20 mA) –50 to +85 °C (–58 to +185 °F) 0.05
1) The additional electronics error that occurs in the temperature range –50 to –41 °C (–58 to –42 °F) is
covered by E2LT.
Endress+Hauser 31
Deltabar S PMD75, FMD77, FMD78
1) The influence of the operating pressure on the zero point can be corrected. Please refer to operating instructions and chapter Commissioning →
Position adjustment.
CF3 – Membrane material correction factor (static pressure) (applicable only to PMD75)
100 mbar (1.5 psi) ± 0.28 ± 0.34 ± 0,47 ± 0.28 ± 0.34 ± 0,47
500 mbar (7.5 psi) ± 0.14 ± 0.16 ± 0.19 ± 0,13 ± 0.15 ± 0.18
1) The specification values apply to the temperature range per ±28 °C (50 °F) (corresponds to the range of –3 to +53 °C (+27 to +127 °F)) for all
measuring cells. The specifications apply to a static pressure of 7 bar (105 psi) for measuring cells of 10 mbar (0.15 psi) to 500 mbar (7.5 psi),
for larger measuring cells of 70 bar (1 050 psi). The specification values apply to the analog output (i.e. including electronics errors). The
specification values apply to membrane material AISI 316L (1.4435), Alloy C .
32 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Min./ Max. temp. differential pressure transmitter Ambient temp.:0 to 45 °C (32 to 113 °F)
(ambient/process) Max. Process temp.:50 °C (122 °F)
Output Signal 4 to 20 mA
Formula
E1 = Reference accuracy → 27
E2 = Ambient temperature effect per ±28 °C (50 °F) (corresponds to the range of
–3 to +53 °C (+27 to +127 °F)) → 30
Calculation
Turn down (TD) = URL/|URV - LRV| = 16 bar (240 psi)/8 bar (116 psi)
= TD = 2:1
Endress+Hauser 33
Deltabar S PMD75, FMD77, FMD78
Step 3: Calculation of the ambient temperature effect [E2 = (E2M · CF1 · CF2) + E2E + E2LT] → 30
[%]
0.16
C
0.14
0.12
0.1 D
0.08
A
0.06
0.04
0.02
0.0
-40 -30 -20 -10 0 +10 +20 +30 +40 +50 +60 +70 +80 +90 [°C]
-40 -22 -4 +14 +32 +50 +68 +86 +104 +122 +140 +158 +176 +194 [°F]
B
A0031069
34 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
For the measuring conditions, ± (0.049 · TD) on the zero point and
Main static pressure error, E3M = ± 0.02 on the span (% of the set span)
per 70 bar (1 015 psi)
Static pressure effect, E3 = ± (0.049 · TD + 0.02) · (35/70) · CF3 (% of the set span)
E1 = Reference accuracy
E2 = Ambient temperature effect per ±28 °C (50 °F) (corresponds to the range of
–3 to +53 °C (+27 to +127 °F))
E3 = Static Pressure Effect
(or)
[%]
0.80
0.60
TD 5:1
A 0.40
TD 4:1
TD 3:1
0.20
TD 2:1
TD 1:1
C
0.00
3 4 5 6 7 8 9 10 11 12 13 14 15 16 [bar]
45 60 75 90 105 120 135 150 165 180 195 210 225 240 [psi]
B
A0031070
Endress+Hauser 35
Deltabar S PMD75, FMD77, FMD78
PMD75 FMD77
-
C A
-
+ +
90°
90
°
-
A
+
90°
°
90
B
+
-
+
B
-
A0031035
Device Calibration position (A) Device rotated vertically downwards (B) Device rotated vertically upwards (C)
PMD75 and silicone oil No additional error <+4 mbar (+0.06 psi) <–4 mbar (–0.06 psi)
The value is doubled for inert oil. The value is doubled for inert oil.
FMD77 and silicone oil No additional error <+32 mbar (+0.46 psi) <–32 mbar (–0.46 psi)
The value is doubled for inert oil. The value is doubled for inert oil.
A position-dependent zero point shift can be corrected. Please refer to operating instructions
chapter Commissioning → Position adjustment.
Vibration effects
Resolution
Current output: 1 μA
36 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Warm-up period
• 4 to 20 mA HART: < 10 s
• PROFIBUS PA: 6 s
• FOUNDATION Fieldbus: 50 s
Endress+Hauser 37
Deltabar S PMD75, FMD77, FMD78
Installation
General installation • A position-dependent zero point shift can be corrected directly at the device via operating keys,
instructions and also in hazardous areas in the case of devices with external operation.
Diaphragm seals also shift the zero point, depending on the installation position → 98.
• The device housing can be rotated up to 380° .
• Endress+Hauser offers a mounting bracket for installing the device on pipes or walls → 39.
• Use flushing rings for flange and cell diaphragm seals if buildup or clogging can be expected at the
diaphragm seal connection. The flushing ring can be fitted between the process connection and
diaphragm seal. Material buildup in front of the process isolating diaphragm can be flushed away,
and the pressure chamber vented, via the two lateral flushing holes.
• When measuring in media containing solids, such as dirty liquids, installing separators and drain
valves is useful for capturing and removing sediment.
• Using a valve manifold allows for easy commissioning, installation and maintenance without
interrupting the process.
• General recommendations for the pressure piping can be found in DIN 19210 "Methods for
measurement of fluid flow; differential piping for flow measurement devices" or the corresponding
national or international standards.
• Install the pressure piping with a continuous gradient of at least 10%.
• When routing the pressure piping outdoors, ensure sufficient anti-freeze protection, e.g. by using
pipe heat tracing.
• Point the cable and connector downwards where possible to prevent moisture from entering (e.g.
rain or condensation water).
Level measurement
The PMD75 and FMD77 are best suited to level measurement in open containers. All Deltabar S
devices are suitable for level measurement in closed vessels.
Measuring arrangement for level measurement in open containers
• PMD75: Mount device below the lower measuring connection. The negative side is open to
atmospheric pressure.
• FMD77: Mount device directly on the vessel. The negative side is open to atmospheric pressure.
Measuring arrangement for level measurement in closed containers and closed containers with
superimposed vapor
• PMD75: Mount device below the lower measuring connection. Always connect the negative side
above the maximum level via pressure piping.
• FMD77: Mount device directly on the vessel. Always connect the negative side above the
maximum level via pressure piping.
• In the case of level measurement in closed vessels with superimposed vapor, a condensate trap
ensures the pressure remains constant on the minus side.
Pressure measurement
• The PMD75 and FMD78 are best suited to differential pressure measurement.
• Measuring arrangement for gases: Mount device above the measuring point.
• Measuring arrangement for liquids and vapors: Mount device below the measuring point.
• For differential pressure measurement in vapors, mount the condensate traps at the same level as
the tapping point and at the same distance from the Deltabar S.
Orientation The orientation may cause a zero point shift, see → 36.
This position-dependent zero point shift can be corrected directly at the device via the operating key,
and also in hazardous areas in the case of devices with external operation (position adjustment).
38 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Wall and pipe mounting, Endress+Hauser offers the following mounting bracket for installing the device on pipes or walls:
transmitter (optional)
Standard version Heavy-duty version
A0031326 A0031327
• The standard mounting bracket version is not suitable for use in an application subject to
vibrations.
• The vibration resistance of the heavy-duty mounting bracket has been tested according to IEC
61298-3, see the "Vibration resistance" section → 44.
• If a valve manifold is used, its dimensions should also be taken into consideration.
• Bracket for wall and pipe mounting including retaining bracket for pipe mounting and two nuts.
• The material of the screws used to secure the device depend on the order code.
• For the technical data (such as the dimensions or order numbers for screws), see the document
SD01553P/00/EN.
Ordering information:
• Standard version: Product Configurator, order code for "Additional options" option "Q" or
• Standard version: Product Configurator, order code for "Accessories enclosed" option "PD"
• Heavy-duty version: Product Configurator, order code for "Additional options" option "U" or
• Heavy-duty version: Product Configurator, order code for "Accessories enclosed" option "PB"
A0032335
For the technical data (such as the dimensions or order numbers for screws), see the document
SD01553P/00/EN.
Ordering information:
Product Configurator, order code for "Accessories enclosed", option "PJ"
Endress+Hauser 39
Deltabar S PMD75, FMD77, FMD78
"Separate housing" version With the "separate housing" version, you are able to mount the housing with the electronics insert at
a distance from the measuring point. This version facilitates trouble-free measurement
• Under particularly difficult measuring conditions (at installation locations that are cramped or
difficult to access)
• If rapid cleaning of the measuring point is required and
• If the measuring point is exposed to vibrations.
You can choose between different cable versions:
• PE: 2 m (6.6 ft), 5 m (16 ft) and 10 m (33 ft)
• FEP: 5 m (16 ft).
Ordering information: Product Configurator, order code for "Additional options 2", version "G".
Dimensions → 78
In the case of the "separate housing" version, the sensor is delivered with the process connection and
cable ready mounted. The housing and a mounting bracket are enclosed as separate units. The cable
is provided with a socket at both ends. These sockets are simply connected to the housing and the
sensor.
5
4
r ³ 120 (4.72)
1 2 3
A0023925
1 Process connection with sensor - For degrees of protection, see the following section
2 Process connection adapter (weight: 0.93 kg (2.05 lb))
3 Cable (weight: 0.05 kg/meter (0.11 lb)), both ends are fitted with a socket
4 Mounting bracket provided, suitable for pipe and wall mounting
5 Housing with electronic insert - degrees of protection → 49
Degree of protection for the process connection and sensor with the use of
• FEP cable:
– IP 69 2)
– IP 66 NEMA 4/6P
– IP 68 (1.83 mH2O for 24 h) NEMA 4/6P
• PE cable:
– IP 66 NEMA 4/6P
– IP 68 (1.83 mH2O for 24 h) NEMA 4/6P
Technical data of the PE and FEP cable:
• Minimum bending radius: 120 mm (4.72 in)
• Cable extraction force: max. 450 N (101.16 lbf)
• Resistance to UV light
Use in hazardous area:
• Intrinsically safe installations (Ex ia/IS)
• FM/CSA IS: for Div. 1 installation only
2) Designation of the IP protection class according to DIN EN 60529. Previous designation "IP69K" according to DIN 40050 Part 9 is no longer valid
(standard withdrawn on November 1, 2012). The tests required by both standards are identical.
40 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
62 (2.44)
45 (1.77)
r ³ 120 (4.72) r ³ 120 (4.72)
81 (3.19)
T14 T17
ø54.1 (2.13)
1 1
+– +– +– +–
A0023926
Turning the housing The housing can be rotated up to 380° by loosening the Allen screw.
Your benefits
• Easy mounting due to optimum alignment of housing
• Good, accessible device operation
• Optimum readability of the onsite display (optional).
2 3
A0019996
Endress+Hauser 41
Deltabar S PMD75, FMD77, FMD78
Oxygen applications Oxygen and other gases can react explosively to oils, grease and plastics, such that, among other
things, the following precautions must be taken:
• All components of the system, such as measuring devices, must be cleaned in accordance with the
BAM (DIN 19247) requirements.
• Dependent on the materials used, a certain maximum temperature and a maximum pressure for
oxygen applications must not be exceeded.
The devices suitable for gaseous oxygen applications are listed in the following table with the
specification pmax.
HB = Cleaned for oxygen service
Order code for devices 1), pmax for oxygen applications Tmax for oxygen applications
cleaned for oxygen applications
Ultrapure gas applications Endress+Hauser also offers devices for special applications, such as ultrapure gas, cleaned from oil
and grease. No special restrictions regarding the process conditions apply to these devices.
Ordering information:
• PMD75: Product Configurator, order code for "Seal"
• FMD77: Product Configurator, order code for "Process connection low-pressure side; Material;
Seal".
Applications with hydrogen A gold-plated metal process isolating diaphragm offers universal protection against hydrogen
diffusion, both in gas applications and in applications with aqueous solutions.
42 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Environment
Ambient temperature range Version PMD75 FMD77 FMD78
1)
Without LCD display –50 to +85 °C (–58 to +185 °F)
2)
With LCD display –20 to +70 °C (–4 to +158 °F)
1) If the temperature is below –40 °C (–40 °F), chances of failure increases. Product Configurator, order code
for "Test, certificate" option "JN".
2) Extended temperature application range (–50 to +85 °C (–58 to +185 °F)) with restrictions in optical
properties, such as display speed and contrast
3) Ambient temperature range and process temperature range are mutually dependent - see "Heat insulation"
section
Hazardous areas
• For devices for use in hazardous areas, see Safety Instructions, Installation or Control
Drawing→ 113.
• Pressure measuring devices that have the usual explosion protection certificates (e.g. ATEX-/
CSA-/ FM-/ IEC Ex,...) can be used in hazardous areas at ambient temperatures down to
–50 °C (–58 °F). The functionality of the explosion protection is also guaranteed for ambient
temperatures down to –50 °C (–58 °F).
Climate class Class 4K4H (air temperature: –20 to +55 °C (–4 to +131 °F), relative humidity: 4 to 100 %) fulfilled
as per DIN EN 60721-3-4 (condensation possible.)
Electromagnetic • Electromagnetic compatibility as per EN 61326 and NAMUR recommendation EMC (NE21).
compatibility • With enhanced immunity against electromagnetic fields as per EN 61000-4-3: 30 V/m with
closed cover (for devices with T14 housing or T15 housing)
• Maximum deviation: < 0.5 % of span
• All EMC measurements were performed with a turn down (TD) = 2:1.
For further details refer to the Declaration of Conformity.
Endress+Hauser 43
Deltabar S PMD75, FMD77, FMD78
Vibration resistance
44 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Process
Process temperature limits PMD75
(temperature at transmitter)
• Process connections made of 316L or Alloy C276: –50 to +85 °C (–58 to +185 °F) 3)
• Process connections made of C22.8: –10 to +85 °C (+14 to +185 °F)
• For oxygen applications, note → 42"Oxygen applications" section.
• Pay attention to the process temperature range of the seal. See also the following section "Process
temperature range, seals".
FMD77
• Depends on the design (see the following table)
• Dependent on diaphragm seal and filling oil (→ 97): –70 to +400 °C (–94 to +752 °F)
• For oxygen applications, note → 42"Oxygen applications" section.
• Pay attention to the process temperature range of the seal. See also the following section "Process
temperature range, seals".
• Please observe the temperature application limits of the diaphragm seal oil. → 97,
"Diaphragm seal filling oils" section.
• Please observe the maximum gauge pressure and maximum temperature.
1)
Design Temperature isolator Temperature Option
FMD78
• Dependent on diaphragm seal and filling oil:–70 to +400 °C (–94 to +752 °F)
• For oxygen applications, note → 42"Oxygen applications" section.
• Please observe the temperature application limits of the diaphragm seal oil. → 97,
"Diaphragm seal filling oils" section.
• Please observe the maximum gauge pressure and maximum temperature.
NOTICE
Incorrect use of the PTFE foil will destroy the device!
‣ The PTFE foil is designed to protect the unit against abrasion. It does not provide protection
against corrosive media.
For the range of application of the 0.25 mm (0.01 in) PTFE foil on an AISI 316L (1.4404/1.4435)
process isolating diaphragm, see the following diagram:
3) If the temperature is below –40 °C (–40 °F), increased failure rates are likely. Product Configurator, order code for "Test, certificate" option "JN".
Endress+Hauser 45
Deltabar S PMD75, FMD77, FMD78
[psi pg]
3625
2900
2175
1450
725
0
-40 77 122 167 212 257 302 347 392 [°F]
A0026949-EN
For vacuum applications: pabs ≤ 1 bar (14.5 psi)to 0.05 bar (0.725 psi)up to max.
+150 °C (302 °F).
[°F] Tp [°C]
572 300
392 200
Tp
392 100
Ta
+32 0
Copper, cleaned for oxygen service –20 to +85 °C (–4 to +185 °F) K or H 3)
FKM Viton, cleaned from oil and grease –10 to +85 °C (+14 to +185 °F) 1
FKM Viton, cleaned for oxygen service –10 to +60 °C (+14 to +140 °F) 2 or A 3)
PTFE, cleaned for oxygen applications –20 to +60 °C (–4 to +140 °F) 3 or C 3)
46 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
1) 2)
Seal on the LP side (–) Process temperature range OPL bar (psi) PN bar (psi) Option
FKM Viton –20 to +85 °C (–4 to +185 °F) See the "Measuring range" section B, D, F, U
"FMD77, FMD78, PMD75: Option PN 160 / 16 MPa / 2400 psi"
PTFE –50 to +85 °C (–58 to +185 °F) → 12. H, J
Kalrez, Compound 6375 0 to +5 °C (+32 to +41 °F) 44...49 (660...735) 29...33 (435...495) M, N
Chemraz, Compound 505 –10 to +25 °C (+14 to +77 °F) 130...160 (1950...2400) 87...107 (1305...1605) P, Q
Diaphragm seal and Please observe the temperature application limits of the diaphragm seal oil. → 97, "Diaphragm seal filling oils" section.
capillary, welded
Endress+Hauser 47
Deltabar S PMD75, FMD77, FMD78
Mechanical construction
Device height The device height is calculated from
• the height of the housing
• the height of optional mounted parts such as temperature isolators or capillaries
• the height of the relevant process connection.
The individual heights of the components can be found in the following sections. To calculate the
device height, simply add up the individual heights of the components. If necessary, the installation
space (the space used to install the device) must also be taken into account. You can use the
following table for this:
PMD75
A0023927
Device height
FMD77
b A b A C D
A0025880
Device height
FMD78
A
b
A0025881
Device height
48 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
129 (5.08)
A0019997
Engineering unit mm (in). Front view, left-hand side view, top view
1)
Material Degree of protection Cable entry Weight in kg (lb) Option
1) Product Configurator, order code for "Housing, cover seal, cable entry, degree of protection"
Endress+Hauser 49
Deltabar S PMD75, FMD77, FMD78
150 (5.91)
138 (5.43)
A0019999
Engineering unit mm (in). Front view, left-hand side view, top view
1)
Material Degree of protection Cable entry Weight in kg (lb) Option
1) Product Configurator, order code for "Housing, cover seal, cable entry, degree of protection"
A0020000
Engineering unit mm (in). Front view, left-hand side view, top view
1) 2)
Material Degree of protection Cable entry Weight in kg (lb) Option
316L EPDM IP66/68 NEMA 6P NPT ½" thread 1.2 (2.65) 1.1 (2.43) T
50 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
85 (3.35)
72 (2.83)
8 7/16-20 UNF
14 M10 (M12)
1/4-18 NPT –+
+–
RC 1/4
35.4 (1.39)
41.3 (1.63)
100 (3.94) 54 (2.13)
87 (3.43)
98 (3.86)
A0023928
Engineering unit mm (in). Front view, left-hand side view, right-hand side view. Nuts are always located on the minus side.
1) 2)
Connection Mounting Material Accessories Weight Option
kg (lbs)
3)
1/4-18 NPT IEC 61518 7/16-20 UNF Steel C 22.8 (1.0460/Zn5) incl. 2 vent valves 4.2 (9.26) B
AISI 316L (1.4404)
1/4-18 NPT IEC 61518 7/16-20 UNF 1.4408 / CF3M 4) / AISI 316L D
5)
AISI 316L (1.4404)
1/4-18 NPT IEC 61518 7/16-20 UNF Alloy C276 (2.4819) Vent valves 4.5 (9.92) F
6)
Alloy C276 (2.4819)
RC 1/4 7/16-20 UNF 1.4408 / CF3M 4) / AISI 316L incl. 2 vent valves 4.2 (9.26) U
5) AISI 316L (1.4404)
AISI 316L (1.4404)
3)
1/4-18 NPT IEC 61518 • PN 160: M10 Steel C 22.8 (1.0460/Zn5) 1
• PN 420: M12
1/4-18 NPT IEC 61518 • PN 160: M10 Alloy C276 (2.4819) Vent valves 4.5 (9.92) 3
6)
• PN 420: M12 Alloy C276 (2.4819)
HP: 1/4-18 NPT IEC 61518 7/16-20 UNF AISI 316L (1.4404) incl. vent valve 4.2 (9.26) Q
LP: blind flange AISI 316L (1.4404)
HP: 1/4-18 NPT IEC 61518 7/16-20 UNF Alloy C276 (2.4819) without vent valve 6). 4.5 (9.92) S
LP: blind flange
1) Weight of process connections without vent valves with 10 mbar (0.15 psi)or 30 mbar (0.45 psi)measuring cell, process connections without
vent valves with measuring cells ≥ 100 mbar (1.5 psi) weigh approx. 800 g (28.22 oz) less.
2) Product Configurator, order code for "Process connection"
3) The C22.8 side flanges are coated with anti-corrosion protection (zinc, chrome). To prevent the formation of hydrogen and thereby diffusion
through the membrane, Endress+Hauser recommends the use of 316L side flanges for applications involving water. Hydrogen diffusion through
the diaphragm leads to measurement errors, or in extreme cases to a device failure.
4) Cast equivalent to material AISI 316L
5) For devices with CSA approval: Product Configurator, order code for "Approval", options D, E, F, U, V, W and X
6) Product Configurator, order code for "Additional options 2"
Endress+Hauser 51
Deltabar S PMD75, FMD77, FMD78
Process connections PMD75 Oval flange, connection 1/4-18 NPT or RC 1/4, with side vent
85 (3.35)
72 (2.83)
8
14
28 (1.1)
1/4-18 NPT 7/16-20 UNF
M10 (M12)
41.3 (1.63)
100 (3.94) 54 (2.13)
87 (3.43)
22 (0.87) 98 (3.86)
A0023929
Engineering unit mm (in). Front view, left-hand side view, right-hand side view. Nuts are always located on the minus side.
1) 2)
Connection Mounting Material Accessories Weight Option
kg (lbs)
3)
1/4-18 NPT IEC 61518 7/16-20 UNF Steel C 22.8 (1.0460/Zn5) 4 locking screws and 4.2 (9.26) C
2 vent valves AISI 316L (1.4404)
1/4-18 NPT IEC 61518 7/16-20 UNF 1.4408 / CF3M 4) / AISI 316L E
5)
AISI 316L (1.4404)
6)
1/4-18 NPT IEC 61518 7/16-20 UNF Alloy C276 (2.4819) Vent valves Alloy C276 (2.4819) 4.5 (9.92) H
4)
RC 1/4 7/16-20 UNF 1.4408 / CF3M / AISI 316L 4 locking screws and 4.2 (9.26) V
5) 2 vent valves AISI 316L (1.4404)
AISI 316L (1.4404)
HP: 1/4-18 NPT IEC 61518 7/16-20 UNF AISI 316L (1.4404) incl. locking screws and 4.2 (9.26) R
LP: blind flange vent valve AISI 316L (1.4404)
HP: 1/4-18 NPT IEC 61518 7/16-20 UNF Alloy C276 (2.4819) Vent valve Alloy C276 (2.4819) 6) 4.5 (9.92) T
LP: blind flange
1) Weight of process connections without vent valves with 10 mbar (0.15 psi)or 30 mbar (0.45 psi)measuring cell, process connections without
vent valves with measuring cells ≥ 100 mbar (1.5 psi) weigh approx. 800 g (28.22 oz) less.
2) Product Configurator, order code for "Process connection"
3) The C22.8 side flanges are coated with anti-corrosion protection (zinc, chrome). To prevent the formation of hydrogen and thereby diffusion
through the membrane, Endress+Hauser recommends the use of 316L side flanges for applications involving water. Hydrogen diffusion through
the diaphragm leads to measurement errors, or in extreme cases to a device failure.
4) Cast equivalent to material AISI 316L
5) For devices with CSA approval: Product Configurator, order code for "Approval", options D, E, F, U, V, W and X
6) Product Configurator, order code for "Additional options 2"
52 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Process connections PMD75 Oval flange, prepared for diaphragm seal mount
A
85 (3.35)
72 (2.83)
A B
7/16-20 UNF
2
M6
+– 1 –+
41.3 (1.63)
54 (2.13) 54 (2.13)
87 (3.43)
98 (3.86)
A0023930
Engineering unit mm (in). Left-hand side view, right-hand side view. Nuts are always located on the minus side.
1)
Material Option
Endress+Hauser 53
Deltabar S PMD75, FMD77, FMD78
Valve manifold DA63M- Endress+Hauser supplies milled valve manifolds via the transmitter's product structure in the
(optional) following versions:
M10
M10
54 (2.13)
30 (1.18)
30 (1.18)
54 (2.13)
105 (4.13)
101 (3.98)
A0032404
A B
140 (5.51)
+ -
+ -
A0032408
54 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
FMD77: Selecting the process The device can be fitted with different process connections on the high-pressure side (HP) and on
connection and capillary line the low-pressure side (LP).
The FMD77 can also be fitted with capillary lines on the low-pressure side (LP).
When using diaphragm seal systems with a capillary, sufficient strain relief must be provided to
prevent the capillary from bending (capillary bending radius ≥ 100 mm (3.94 in)).
Example:
• Process connection on high-pressure side = DN80 flange
• Process connection on low-pressure side = DN50 flange
Your benefits:
• Thanks to the variety of order options, the devices can be optimally adapted to the given
installation situation
• Reduced costs due to optimum system design
• Easier installation due to adjusted length of capillary line
• Easier adaptation to existing installation situations
Ordering information:
• Process connections are indicated in the relevant section by HP (high-pressure side) and LP (low-
pressure side)
• Order details for capillary lengths → 86
– ≥ 100 (2.94)
A0027889
Due to the use of different process connections and capillary lines, it is essential that the device
be designed/ordered using the "Applicator Sizing Diaphragm Seal" selection tool, which is
available free of charge. Additional information can be found in the "Planning instructions,
diaphragm seal systems" section → 94
Endress+Hauser 55
Deltabar S PMD75, FMD77, FMD78
FMD77 - Overview
A B
C D
A0025157
1)
Item Design Temperature isolator Page Option
2)
A Transmitter horizontal long → 57 MA
E
+–
A0025252
1)
Item Design Page Option
56 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
1 8
41.3 (1.63)
7/16-20 UNF 14
1/4-18 NPT
1/4 RC
2 35.4 (1.39)
1 High-pressure side: see "Process connections FMD77 with diaphragm seal, high-pressure side" section → 59
2 Low-pressure side: see "Process connections FMD77 with diaphragm seal, low-pressure side" section → 63
1 8
41.3 (1.63)
7/16-20 UNF 14
1/4-18 NPT
1/4 RC
2 35.4 (1.39)
95 (3.74) 86 (3.39)
144 (5.67) 132 (5.2)
A0025161
1 High-pressure side: see "Process connections FMD77 with diaphragm seal, high-pressure side" section → 59
2 Low-pressure side: see "Process connections FMD77 with diaphragm seal, low-pressure side" section → 63
Endress+Hauser 57
Deltabar S PMD75, FMD77, FMD78
100 (3.94)
41.3 (1.63)
1 1/4-18 NPT
1/4 RC
7/16-20 UNF
8
14
+–
2
35.4 (1.39)
150 (5.91) 142 (5.59)
175 (6.89) 190 (7.48)
A0023942
1 High-pressure side: see "Process connections FMD77 with diaphragm seal, high-pressure side" section → 59
2 Low-pressure side: see "Process connections FMD77 with diaphragm seal, low-pressure side" section → 63
58 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Process connections FMD77 • The following drawings are drawings that illustrate how the system works in principle. In
with diaphragm seal other words, the dimensions of a diaphragm seal supplied can deviate from the dimensions
given in this document.
• Note "Planning instructions, diaphragm seal systems" section→ 94
• For further information please contact your local Endress+Hauser Sales Center.
g2
b
max. 150
2
dM
g
k
D
A0023946
D Diameter of flange
b Thickness
g Raised face
k Hole circle
g2 Diameter of hole
dM Max. diameter of the process isolating diaphragm
Engineering unit mm
1) 2) 3)
Material Boltholes Diaphragm seal Option
Endress+Hauser 59
Deltabar S PMD75, FMD77, FMD78
EN/DIN flanges with barrel (extended diaphragm seal), connection dimensions in accordance
with EN 1092-1/DIN 2527
g2
b
3
L
dM
d3
g
k
D
A0023947
D Diameter of flange
b Thickness
d3 Barrel (extended diaphragm seal) diameter
L Barrel (extended diaphragm seal) length
g Raised face
k Hole circle
g2 Diameter of hole
dM Max. diameter of the process isolating diaphragm
Engineering unit mm
1) 2)
Flange Boltholes Diaphragm seal Option 3)
(HP + LP)
Nominal diameter Nominal pressure Shape 4) D b g L d3 Number g2 k dM Weight
PN [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg (lb)]
60 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Process connections FMD77 ASME flanges, connection dimensions in accordance with B 16.5, raised face RF
with diaphragm seal
g2
b
max. 5.91
dM
0.08
g
k
D
A0023949
D Diameter of flange
b Thickness
g Raised face
k Hole circle
g2 Diameter of hole
dM Max. diameter of the process isolating diaphragm
Engineering unit in
1) 2) 3) 4)
Flange Boltholes Diaphragm seal Weight Approval Option
[in] [lb./sq.in] [in] [in] [in] [in] [in] [in] [kg (lb)] HP 5) LP 6)
1) Material: AISI 316/316L. Combination of AISI 316 for required pressure resistance and AISI 316L for required chemical resistance (dual rated)
2) The roughness of the surface in contact with the medium including the raised face of the flanges (all standards) made of Alloy C276, Monel,
tantalum, rhodium-gold or PTFE is Ra< 0.8 µm (31.5 µin). Lower surface roughness on request.
3) The flange raised face is made of the same material as the process isolating diaphragm.
4) CSA approval: Product Configurator, order code for "Approval"
5) Product Configurator, order code for "Process connection, HP/ HP+LP:"
6) Product Configurator, order code for "Alternative process connection LP side:"
7) Alternatively available with TempC membrane.
Endress+Hauser 61
Deltabar S PMD75, FMD77, FMD78
ASME flanges with barrel (extended diaphragm seal), connection dimensions in accordance
with ASME B 16.5, raised face RF
g2
b
max. 5.91
0.08
L
dM
d3
g
k
D
A0023951
D Diameter of flange
b Thickness
d3 Barrel (extended diaphragm seal) diameter
L Barrel (extended diaphragm seal) length
g Raised face
k Hole circle
g2 Diameter of hole
dM Max. diameter of the process isolating diaphragm
Engineering unit in
1) 2)
Flange Boltholes Diaphragm seal Weight Option 3)
(HP + LP)
Nominal diameter Class D b g L d3 Number g2 k dM
[in] [lb./sq.in] [in] [in] [in] [in] [in] [in] [in] [kg (lb)]
4 6.6 (14.55)
6 7.1 (15.66)
8 7.7 (16.98)
62 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Process connections FMD77 JIS flanges, connection dimensions in accordance with JIS B 2220 BL, raised face RF
with diaphragm seal
g2
b
max. 150
2
dM
g
k
D
A0023946
D Diameter of flange
b Thickness
g Raised face
k Hole circle
g2 Diameter of hole
dM Max. diameter of the process isolating diaphragm
Engineering unit mm
1) 2) 3)
Flange Boltholes Diaphragm seal Weight Option
Process connections FMD77 Process connection low-pressure side Material Seal Option 1)
1/4 – 18 NPT IEC 61518 AISI 316L FKM Viton, cleaned from oil and grease S
1/4 – 18 NPT IEC 61518 AISI 316L FKM Viton, cleaned for oxygen service T
Endress+Hauser 63
Deltabar S PMD75, FMD77, FMD78
1)
Process connection low-pressure side Material Seal Option
FMD78: Selecting the process The device can be fitted with different process connections on the high-pressure side (HP) and on
connection and capillary line the low-pressure side (LP).
The FMD78 can also be fitted with different capillary lengths on the high-pressure side (HP) and on
the low-pressure side (LP).
When using diaphragm seal systems with a capillary, sufficient strain relief must be provided to
prevent the capillary from bending (capillary bending radius ≥ 100 mm (3.94 in)).
Example:
• Process connection on high-pressure side = DN80 flange
• Process connection on low-pressure side = DN50 flange
• Capillary length on high-pressure side = 2 m (6.6 ft)
• Capillary length on low-pressure side = 5 m (16 ft)
Your benefits:
• Thanks to the variety of order options, the devices can be optimally adapted to the given
installation situation
• Reduced costs due to optimum system design
• Easier installation due to adjusted length of capillary on low-pressure side and high-pressure side
• Easier adaptation to existing installation situations
Ordering information:
• Process connections are indicated in the relevant section by HP (high-pressure side) and LP (low-
pressure side)
• Order details for capillary lengths → 86
–
≥ 100 (2.94)
A0027891
Due to the use of different process connections and capillary lines, it is essential that the device
be designed/ordered using the "Applicator Sizing Diaphragm Seal" selection tool, which is
available free of charge. Additional information can be found in the "Planning instructions,
diaphragm seal systems" section → 94
64 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
85 (3.35)
72 (2.83)
7/16-20 UNF
+– 1 –+
41.3 (1.63)
100 (3.94) 54 (2.13) 54 (2.13)
87 (3.43)
98 (3.86)
A0023952
Engineering unit mm (in). Front view, left-hand side view, right-hand side view. Nuts are always located on the minus side.
Endress+Hauser 65
Deltabar S PMD75, FMD77, FMD78
Process connections FMD78 • The following drawings are drawings that illustrate how the system works in principle. In
with diaphragm seal other words, the dimensions of a diaphragm seal supplied can deviate from the dimensions
given in this document.
• Note "Planning instructions, diaphragm seal systems" section→ 94
• For further information please contact your local Endress+Hauser Sales Center.
dM
b
≈200 (7.87) D
A0021635
D Diameter
dM Max. diameter of the process isolating diaphragm
b Thickness
1)
Flange Diaphragm seal Approval Option
2)
Material Nominal diameter Nominal pressure D b dM Weight of two diaphragm
seals
[kg (lb)] HP 3) LP 4)
AISI 316L [in] [lb/sq.in] [in (mm)] [in (mm)] [in (mm)]
2 150-2500 3.9 (99) 0.79 (20) 2.32 (59) 2.6 (5.73) CRN VF UP
4 150-2500 6.22 (158) 0.79 (20) 3.50 (89) 6.2 (13.67) CRN VJ US
66 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
A B
max. 89 (3.5)
max. 89 (3.5)
100 (3.94) 100 (3.94)
22 22
ø6 (0.24) NPT ½"
G ½"
A0027135
4x
ø11.5 (0.45)
23.6 (0.93)
dM 30 (1.18)
ø65-1.2 (2.56-0.05)
ø84 (3.31)
ø105 (4.13)
A0021673
1)
Material Nominal pressure dM Weight Option
1) Surface roughness of the wetted surfaces Ra < 0.76 µm (29.9 µin) as standard.
2) Product Configurator, order code for "Process connection, HP/ HP+LP:"
3) Product Configurator, order code for "Alternative process connection LP side:"
4) Alternatively available with TempC membrane.
Endress+Hauser 67
Deltabar S PMD75, FMD77, FMD78
h
dM
C7
A0021644
C7 Diameter of flange
h Height
dM Max. diameter of the process isolating diaphragm
3A, CRN
5) 6)
ND 51 / DN 50 2 64 48 41 30 1.1 (2.43) EHEDG, TD UC 5) 6)
AISI 316L
40 3A, CRN
7)
ND 63.5 DN 50 2½ 77.5 61 61 30 0.7 (1.54) EHEDG, TE UD 7)
3A
6)
ND 76.1 – 3 91 73 61 30 1.2 (2.65) EHEDG, TF UE 6)
3A, CRN
1) Surface roughness of the wetted surfaces Ra < 0.76 µm (29.9 µin) as standard. Lower surface roughness available on request.
2) CSA approval: Product Configurator, order code for "Approval"
3) Product Configurator, order code for "Process connection, HP/ HP+LP:"
4) Product Configurator, order code for "Alternative process connection LP side:"
5) Optionally available as ASME-BPE-compliant diaphragm seal version for use in biochemical processes, surfaces in contact with medium Ra <
0.38 µm (15 µin)), electropolished; order using the order code for "Additional options 1" or "Additional options 2", option "O".
6) Alternatively available with TempC membrane.
7) With TempC membrane
68 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
h
m
dM
G
D
A0021674
D Diameter
f Nozzle height
G Thread
h Height
m Height
dM Max. diameter of the process isolating diaphragm
1) Surface roughness of the wetted surfaces Ra < 0.76 µm (29.9 µin) as standard.
2) Product Configurator, order code for "Process connection, HP/ HP+LP:"
3) Product Configurator, order code for "Alternative process connection LP side:"
4) With TempC membrane
Hygienic connection, sanitary tank spud, barrel (extended diaphragm seal) 2"
ø92.2 (3.63)
53.8 (2.12)
63.7 (2.51)
ø100 (3.94)
ø132.6 (5.22)
A0023953
1) 2)
Material Weight kg (lbs) Approval Option
1) Roughness of wetted surfaces Ra < 0.76 µm (29.9 µin) as standard. Lower surface roughness on request.
2) Product Configurator, order code for "Process connection, HP/ HP+LP:"
3) With TempC membrane
Endress+Hauser 69
Deltabar S PMD75, FMD77, FMD78
m
40 (1.57)
dM
D
G
A0021678
D Diameter
f Nozzle height
G Thread
m Height
dM Max. diameter of the process isolating diaphragm
DN 32 PN 40 50 10 Rd 58 x 21 32 28 0.45 3A, MI 4) TP 4)
1/6" (0.99) EHEDG
DN 40 PN 40 56 10 Rd 65 x 21 38 36 0.45 3A, MZ 4) TU 4)
1/6" (0.99) EHEDG
DN 65 PN 25 86 12 Rd 95 x 21 66 61 2.0 3A, MS 5) TS 5)
1/6" (4.41) EHEDG
1) Surface roughness of the wetted surfaces Ra < 0.76 µm (29.9 µin) as standard.
2) Product Configurator, order code for "Process connection, HP/ HP+LP:"
3) Product Configurator, order code for "Alternative process connection LP side:"
4) with TempC membrane
5) Alternatively available with TempC membrane.
70 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
dM
30 (1.18)
D
A0021672
D Diameter
dM Max. diameter of the process isolating diaphragm
1)
Material Designation Nominal pressure D dM Weight Approval Option
1) Surface roughness of the wetted surfaces Ra < 0.76 µm (29.9 µin) as standard.
2) Product Configurator, order code for "Process connection, HP/ HP+LP:"
3) Product Configurator, order code for "Alternative process connection LP side:"
4) With TempC membrane
5) Alternatively available with TempC membrane.
Endress+Hauser 71
Deltabar S PMD75, FMD77, FMD78
h
dM
d
d3
d1
D
A0023435
D Diameter
h/d Height
d1/ d3 diameter
d2 Diameter of hole
dM Max. diameter of the process isolating diaphragm
1)
Material NEUMO BioControl Diaphragm seal Approval Option
(Process temperature range: –10 to +200 °C (+14 to +392 °F))
dM Weight
[bar] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg (lb)] HP 2) LP 3)
DN 50 PN 16 90 4xØ9 50 70 27 40 36 1.1 3A S4 4) TV
(2.43)
AISI 316L
4)
DN 80 PN 16 140 4 x Ø 11 87.4 115 37 61 61 2.6 3A S6 TW
(5.73)
1) Surface roughness of the wetted surfaces Ra < 0.76 µm (29.9 µin) as standard.
2) Product Configurator, order code for "Process connection, HP/ HP+LP:"
3) Product Configurator, order code for "Alternative process connection LP side:"
4) With TempC membrane
72 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
50 (1.97)
dM = ø36 (1.42)
ø43.5 (1.71)
A0026277
1)
Designation Nominal pressure Material Weight Approval Option
[kg (lb)] HP 2) LP 3)
4) 5) 4) 5)
Universal adapter with silicone molded seal (spare part no.: PN 10 AISI 316L (1.4435) 0.8 (1.76) 3A, EHEDG 00 UT
52023572) FDA 21CFR177.2600/USP Class VI
1) Surface roughness of the wetted surfaces Ra< 0.76 µm (29.9 µin) as standard.
2) Product Configurator, order code for "Process connection, HP/ HP+LP:"
3) Product Configurator, order code for "Alternative process connection LP side:"
4) Endress+Hauser supplies these slotted nuts in stainless steel AISI 304 (DIN/EN material number 1.4301) or in AISI 304L (DIN/EN material
number 1.4307).
5) With TempC membrane.
Endress+Hauser 73
Deltabar S PMD75, FMD77, FMD78
Process connections FMD78 EN/DIN flanges, connection dimensions in accordance with EN 1092-1/DIN 2527,
with diaphragm seal JIS flanges, connection dimensions in accordance with JIS B 2220 BL
g2
b
f
dM
g
k
D
A0021680
D Diameter of flange
b Thickness
g Raised face
f Thickness of raised face
k Hole circle
g2 Diameter of hole
Engineering unit mm
1) 2) 3)
Material Boltholes Diaphragm seal Option
4)
Nominal diameter Nominal pressure Shape D b g f Number g2 k dM [mm] Weight
1) 2) 3)
Material Boltholes Diaphragm seal Option
74 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Process connections FMD78 EN/DIN flanges with barrel (extended diaphragm seal), connection dimensions in accordance
with diaphragm seal with EN 1092-1/DIN 2527 and DIN 2501-1
g2
b
3
L
dM
d3
g
k
D
A0023947
D Diameter of flange
b Thickness
g Raised face
k Hole circle
g2 Diameter of hole
dM Max. diameter of the process isolating diaphragm
d3 Barrel (extended diaphragm seal) diameter
L Barrel (extended diaphragm seal) length
Engineering unit mm
1) 2)
Flange Boltholes Diaphragm seal Option 3)
(HP + LP)
Nominal Nominal Shape 4) D b g L d3 Number g2 k dM [mm] Weight
diameter pressure
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg (lb)]
Endress+Hauser 75
Deltabar S PMD75, FMD77, FMD78
Process connections FMD78 ASME flanges, in accordance with connection dimensions ASME B 16.5, raised face RF
with diaphragm seal
g2
b
f
dM
g
k
D
A0023913
D Diameter of flange
b Thickness
g Raised face
f Thickness of raised face
k Hole circle
g2 Diameter of hole
Engineering unit in
1) 2) 3) 4)
Material Boltholes Diaphragm seal Approval Option
[in] [lb./sq.in] [in] [in] [in] [in] [in] [in] [in] [kg (lb)] HP 5) LP 6)
2 150 6 0.75 3.62 0.06 4 0.75 4.75 2.32 2.2 (4.85) CRN AF 7) TE 7)
2 300 6.5 0.88 3.62 0.06 8 0.75 5 2.32 3.4 (7.5) CRN AR 7) TF 7)
4 150 9 0.94 6.19 0.06 8 0.75 7.5 3.5 7.2 (15.88) CRN AH TI
4 300 10 1.25 6.19 0.06 8 0.88 7.88 3.5 11.7 (25.8) CRN AT TJ
1) Material AISI 316/316L: Combination of AISI 316 for required pressure resistance and AISI 316L for required chemical resistance (dual rated)
2) The roughness of the surface in contact with the media, including the raised face of the flanges (all standards) made of Alloy C276, Monel,
Tantalum, Rhodium>Gold or PTFE is Ra< 0.8 µm (31.5 µin). Lower surface roughness on request.
3) The flange raised face is made of the same material as the process isolating diaphragm.
4) CSA approval: Product Configurator, order code for "Approval"
5) Product Configurator, order code for "Process connection, HP/ HP+LP:"
6) Product Configurator, order code for "Alternative process connection LP side:"
7) Alternatively available with TempC membrane.
76 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
ASME flanges with barrel (extended diaphragm seal), connection dimensions in accordance
with ASME B 16.5, raised face RF
g2
b
f
L
dM
d3
g
k
D
A0021683
D Diameter of flange
b Thickness
g Raised face
k Hole circle
g2 Diameter of hole
dM Max. diameter of the process isolating diaphragm
d3 Barrel (extended diaphragm seal) diameter
L Barrel (extended diaphragm seal) length
Engineering unit in
1) 2) 3)
Flange Boltholes Diaphragm seal Approval Option 4)
(HP + LP)
Nominal diameter Class D b g f Number g2 k dM Weight
[in] [lb./sq.in] [in] [in] [in] [in] [in] [in] [in] [kg (lb)]
5) 5)
3 150 7.5 0.94 5 0.06 4 0.75 6 2.83 CRN J4
5) 5)
4 150 9 0.94 6.19 0.06 8 0.75 7.5 3.5 CRN J5
1) Material: AISI 316/316L. Combination of AISI 316 for required pressure resistance and AISI 316L for required chemical resistance (dual rated)
2) In the case of process isolating diaphragms made of Alloy C276, Monel or tantalum, the raised face of the flange and the barrel pipe are made of
316L.
3) CSA approval: Product Configurator, order code for "Approval"
4) Product Configurator, order code for "Process connection, HP/ HP+LP:"
5) Choice of 2", 4", 6" or 8" barrel (extended diaphragm seal), for diameter and weight of barrel (extended diaphragm seal) see the following table
1)
Option Nominal diameter Class (L) d3 Weight
J4 3 150 2 (50.8) / 4 (101.6) / 6 (152.4) / 8 (203.2) 2.99 (76) 6.0 (13.2) / 6.6 (14.5) / 7.1 (15.7) / 7.8 (17.2)
J5 4 150 2 (50.8) / 4 (101.6) / 6 (152.4) / 8 (203.2) 3.7 (94) 8.6 (19) / 9.9 (21.8) / 11.2 (24.7) / 12.4
(27.3)
Endress+Hauser 77
Deltabar S PMD75, FMD77, FMD78
86 (3.39)
70 (2.76)
pipe mounting with
mounting bracket ø42...60 (1.65...2.36)
84 (3.31)
ø6 (0.24)
A
129 (5.08)
52 (2.05)
122 (4.8) 140 (5.51)
158 (6.22) 175 (6.89)
B 76 (2.99)
147 (5.79)
6 (0.24)
1)
Position Designation Weight in kg (lb) Option
1) Product Configurator, order code for "Additional options 2", version "G"
78 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
14 4
7
5
8 3
13 6
2
12
11 10 9
A0020019
14 T15 14
8
7
16 16
15
17
4 1
12 2
3
13 11 10 9 6 5
A0020020
9 Screw A4
Endress+Hauser 79
Deltabar S PMD75, FMD77, FMD78
T17 1
2
16 16 3
15
17
7
8
14 9 5 4 3
6 2
13
12 11 10
A0020021
1 T17 housing
AISI 316L (1.4404)
2 Cover
4 Nameplates Lasered on
8 Sight glass for ATEX 1/2 D, ATEX 1/3 D, ATEX 1 GD, Mineral glass
ATEX 1/2 GD, ATEX 3 G, FM DIP, CSA dust ignition-
proof
10 Screw A2-70
13 Screw A4-50
Thread coating: Heat-curing lubricant
varnish
80 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Connecting parts
1 2 3 3
4
5
6
8 4 5
7
A0026172
6 PE cable for separate housing abrasion-proof cable with strain-relief Dynema members;
shielded using aluminum-coated foil; insulated with
polyethylene (PE-LD), black; copper wires, twisted,
UV‑resistant
7 FEP cable for separate housing Abrasion-proof cable; shielded using galvanized steel
wire netting; insulated with fluorinated ethylene
propylene (FEP), black; copper cores, twisted, UV-
resistant
Endress+Hauser 81
Deltabar S PMD75, FMD77, FMD78
FMD77
1
2
3 7
9
4 5
6
8
PMD75 FMD78
1 1
2 2
3 3 4 5 9
A0023955
1 Connection between the housing and process connection AISI 316L (1.4404)
82 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
A B C
1 1 1
2 2 2
3 3
5 4
A0028087
1 Capillary AISI 316 Ti (1.4571) AISI 316 Ti (1.4571) AISI 316 Ti (1.4571)
2)
2 Flexible armor for capillary AISI 316L (1.4404) AISI 316L (1.4404) AISI 316L (1.4404)
3)
3 Coating/armor - PVC PTFE 4)
Capillary with armoring made of AISI 316L (1.4404) 0.16 kg/m (0.35 lb/m) + 0.2 kg (0.44 lb)
(weight per capillary line)
Capillary with armoring made of AISI 316L (PVC) 0.21 kg/m (0.46 lb/m) + 0.2 kg (0.44 lb)
(weight per capillary line)
Capillary with armoring made of AISI 316L (PTFE) 0.29 kg/m (0.64 lb/m) + 0.2 kg (0.44 lb)
(weight per capillary line)
Delta-ferrite content
A delta-ferrite content of ≤ 3% can be guaranteed and certified for the wetted parts of the FMD78 if
option "8" is selected in the "Additional options 1" or "Additional options 2" order code in the Product
Configurator.
Endress+Hauser 83
Deltabar S PMD75, FMD77, FMD78
Process connections
• "Clamp connections" and "Hygienic process connections": AISI 316L (DIN/EN material number
1.4435)
• Endress+Hauser supplies DIN/ EN process connections with threaded connections made of
stainless steel as per AISI 316L (DIN/EN material number 1.4404 or 14435). With regard to their
stability-temperature property, the materials 1.4404 and 1.4435 are grouped together under
13E0 in EN 1092-1: 2001 Tab. 18. The chemical composition of the two materials can be
identical.
• Some process connections are also available in alloy C276 (DIN/EN material number 2.4819). For
this purpose see the information in the "Mechanical construction" section.
• Side flanges: 316L, C 22.8 with zinc plating or alloy C 276. The C22.8 side flanges are coated with
anti-corrosion protection (zinc, chrome). To prevent the formation of hydrogen and thereby
diffusion through the membrane, Endress+Hauser recommends the use of 316L side flanges for
applications involving water. Hydrogen diffusion through the membrane leads to measurement
errors, or in extreme cases to a device failure.
FMD77 with capillaries on Tantalum (UNS R05200), high-pressure side (HP) + low-pressure L
low-pressure side (LP) side (LP)
AISI 316L 1
2)
Alloy C 276 2
2)
Monel (2.4360) 3
FMD78
2)
Tantalum (UNS R05200) 5
AISI 316L with 0.25 mm (0.01 in) PTFE foil (FDA 21 CFR 8
177.1550)
AISI 316L 1
84 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Seals
1)
Device Designation Option
FKM Viton A
2)
PTFE (PN160bar/16MPa/2400psi) C
2)
PTFE (PN250bar/25MPa/3625psi) D
NBR F
FKM Viton, cleaned for oxygen service, note pressure and temperature application limits 2
PTFE, cleaned for oxygen service, note pressure and temperature application limits 3
EPDM J 3)
1) 2)
Process connection Designation Option
Inert oil F
Low-temperature oil L
High-temperature oil V
1)
FMD77 Designation Option
With capillary on low-pressure side (LP) Silicone oil Standard, if no option was
selected.
Without capillary on low-pressure side (LP) Silicone oil Standard, if no option was
selected.
Endress+Hauser 85
Deltabar S PMD75, FMD77, FMD78
1)
FMD77 Designation Option
1)
Capillary length; Designation Option
1) For diaphragm seal devices with 3-A and EHEDG certificates, only select filling oils with FDA approval!
2) Product Configurator, order code for "Fill fluid"
3) If the capillary length for asymmetrical LP or HP is identical, select a symmetrical capillary length when
ordering.
4) If the capillary length for asymmetrical LP or HP is identical, select a symmetrical capillary length when
ordering.
5) Product Configurator, order code for "Additional options 2"
86 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
1)
Designation Option
Designation Option
Endress+Hauser 87
Deltabar S PMD75, FMD77, FMD78
Operability
Operating concept Operator-oriented menu structure for user-specific tasks
• Commissioning
• Operation
• Diagnosis
Reliable operation
• Local operation possible in several languages
• Standardized operation at the device and in the operating tools
• Parameters relating to measured values can be locked/unlocked using the device's write protection
switch, using the device software or via remote operation
Device reset
88 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Functions:
• 8-digit measured value display including sign and decimal point and bar graph for
– 4 to 20 mA HART (bar graph from 4 to 20 mA)
– PROFIBUS PA (bar graph as graphic display of standardized value of AI block)
– FOUNDATION Fieldbus (bar graph as graphic display of transducer output).
•
• Simple and complete menu guidance due to breakdown of parameters into several levels and
groups
• Menu guidance in up to 8 languages
• Each parameter is given a 3-digit ID number for easy navigation.
• Option for configuring the display according to individual requirements and preferences, such as
language, alternating display, display of other measured values such as sensor temperature,
contrast setting.
• Comprehensive diagnostic functions (fault and warning message, peak-hold indicators, etc.).
• Rapid and safe commissioning with the Quick Setup menus
Overview
4 5
3
2
– + E
1
A0016498
1 Operating keys
2 Bargraph
3 Symbol
4 Header
5 Parameter ID number
0%
Zero
A0020030
A 4 to 20 mA HART
B PROFIBUS PA and FOUNDATION Fieldbus
The operating keys located externally on the device work on the Hall sensor principle. As a result, no
additional openings are required in the device. This guarantees:
• Complete protection against environmental influences such as moisture and contamination.
• Simple operation without any tools.
• No wear.
Endress+Hauser 89
Deltabar S PMD75, FMD77, FMD78
Ordering information:
Product Configurator, order code for "Output, operation"
HART
1 2 3 4 5 6
on
t
off
1 2
PC
A0020031
PROFIBUS PA
1 2 3 4 5 6 7
on
t
off 0%
Zero
ON CK S D A 0 8
1 2
1 2 3 4 5 6 7 8
PC
1 2 3 4 5 6 7 8
Address
SW
HW
A0020032
90 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
FOUNDATION Fieldbus
1 2 3 4 5 6
Sim.
on
off 0%
Zero
Simulation
HW
1 2
PC
A0020033
Remote operation All software parameters are accessible depending on the position of the write protection switch on
the device.
Hardware and software for remote operation HART PROFIBUS PA FOUNDATION Fieldbus
FieldCare
FieldXpert SFX100 —
NI-FBUS Configurator — —
HistoROM®/M-DAT
FieldCare
FieldCare is an Endress+Hauser asset management tool based on FDT technology. With FieldCare,
you can configure all Endress+Hauser devices as well as devices from other manufacturers that
support the FDT standard.
FieldCare supports the following functions:
• Configuration of transmitters in offline and online mode
• Device data upload/download
• HistoROM®/M-DAT analysis
• Documentation of the measuring point
Connection options:
• HART via Commubox FXA195 and the USB interface of a computer
• PROFIBUS PA via segment coupler and PROFIBUS interface card
• Service interface with Commubox FXA291 and ToF adapter FXA291 (USB).
For further information please contact your local Endress+Hauser Sales Center.
Endress+Hauser 91
Deltabar S PMD75, FMD77, FMD78
Commubox FXA195
For intrinsically safe HART communication with FieldCare via the USB interface. For details refer to
TI00404F/00/EN.
Commubox FXA291
The Commubox FXA291 connects Endress+Hauser field devices with a CDI interface (=Endress
+Hauser Common Data Interface) to the USB interface of a personal computer or a notebook. For
details refer to TI00405C/07/EN.
For the following Endress+Hauser devices you need the "ToF adapter FXA291" as an additional
accessory:
• Cerabar S PMC71, PMP7x
• Deltabar S PMD7x, FMD7x
• Deltapilot S FMB70
Profiboard
For connecting a PC to PROFIBUS.
Proficard
For connecting a laptop to PROFIBUS.
FF configuration program
FF configuration program, such as NI-FBUS Configurator, to
• connect devices with "FOUNDATION Fieldbus signal" into an FF network
• set FF-specific parameters
HistoROM®/M-DAT The HistoROM®/M-DAT is a memory module that can be attached to any electronic insert.
(optional) HistoROM®/M-DAT can be retrofitted at any stage (order number: 52027785).
Your benefits
• Quick and safe commissioning of the same measuring points by copying the configuration data of
one transmitter to another transmitter
• Reliable process monitoring thanks to cyclical recording of pressure and sensor temperature
measured values
• Simple diagnosis by recording diverse events such as alarms, configuration changes, counters for
measuring range undershoot and overshoot for pressure and temperature as well as user limit
overshoot and undershoot for pressure and temperature etc.
• Analysis and graphic evaluation of the events and process parameters via software (contained in
scope of supply).
92 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
A CD with an Endress+Hauser operating program is also included in the scope of delivery. You can
copy data from one transmitter to another transmitter when operating a FOUNDATION Fieldbus
device via an FF configuration program. You need the Endress+Hauser FieldCare operating program,
the Commubox FXA291 service interface and the ToF adapter FXA291 to be able to access the data
and events saved in the HistoROM®/M-DAT.
Ordering information:
Product Configurator, order code for "Additional options:", version "N" or
Product Configurator, order code for "Application package:", option "EN" or
as a separate accessory (part no.: 52027785).
For further information please contact your local Endress+Hauser Sales Center.
System integration The device can be given a tag name (max. 8 alphanumeric characters).
1)
Designation Option
Endress+Hauser 93
Deltabar S PMD75, FMD77, FMD78
A0034616
For more detailed information or the layout of the optimum diaphragm seal solution for your
application, please contact your local Endress+Hauser Sales Center.
Applications Diaphragm seal systems should be used if the process and the device should be separated.
Diaphragm seal systems offer clear advantages in the following instances:
• In the case of extreme process temperatures
• For aggressive media
• In the case of process media that crystallize
• In the case of corrosive or highly various process media or process media with solids content
• In the case of heterogeneous and fibrous process media
• If extreme measuring point cleaning is necessary, or for very humid mounting locations
• If the measuring point is exposed to severe vibrations
• For mounting locations that are difficult to access
94 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Design and operation mode Diaphragm seals are separating equipment between the measuring system and the process.
A diaphragm seal system consists of:
• A diaphragm seal in a one-sided system, e.g. FMD77 or two diaphragm seals in a two-sided
system, e.g. FMD78
• One capillary tube or two capillary tubes
• Fill fluid
• A differential pressure transmitter
The process pressure acts via the process isolating diaphragm of the diaphragm seal on the liquid-
filled system, which transfers the process pressure via the capillary tube onto the sensor of the
differential pressure transmitter.
Endress+Hauser delivers all diaphragm seal systems as welded versions. The system is hermetically
sealed, which ensures the highest reliability.
The diaphragm seal determines the application range of the system by:
• The diameter of the process isolating diaphragm
• The stiffness and material of the process isolating diaphragm
• The design (oil volume)
The Endress+Hauser TempC membrane: Highest accuracy and process safety when measuring
pressure and differential pressure using diaphragm seals
To measure even more precisely in such applications and to increase process safety, Endress+Hauser
has developed the TempC membrane based on a completely revolutionary technology. This
membrane guarantees the highest level of accuracy and process safety in diaphragm seal
applications.
• The very low temperature effect minimizes the influence of fluctuations of both process and
ambient temperatures, thus guaranteeing accurate and stable measurements. Measurement
inaccuracies caused by temperature are reduced to a minimum.
• The TempC membrane can be used at temperatures between –70 °C (–94 °F) and
+400 °C (+752 °F). This guarantees maximum process safety even for very long sterilization and
cleaning cycles (SIP/CIP) in tanks and pipes at high temperatures.
• Thanks to the TempC membrane, smaller dimension process connections are possible. With a
smaller process connection, the new membrane measures at least as accurately as a conventional
membrane with a larger diameter.
• Due to the geometry of the membrane, an overshoot occurs initially immediately following a
temperature shock. This results in a transient response, the duration and deviation of which are
significantly less compared to traditional membrane types. In the case of batch processes, these
shorter recovery times mean a far higher level of availability of the production facilities. For
TempC membranes, the effect of the overshoot on the output signal can be reduced by adjusting
the damping.
Ordering information:
See the Product Configurator for the individual process connection and the choice of process
isolating diaphragm.
Selection in the Applicator:
Under "Transmitter data" in the "Membrane material" field.
Capillary
Diaphragm seals are used with the following capillary internal diameters as standard:
• ≤ DN 50: 1 mm (0.04 in)
• > DN 50: 2 mm (0.08 in)
Endress+Hauser 95
Deltabar S PMD75, FMD77, FMD78
The capillary tube influences the thermal change, the ambient temperature operating range and the
response time of a diaphragm seal system as a result of its length and internal diameter.
Filling oil
When selecting the filling oil, the media and ambient temperature as well as the operating pressure
are of crucial importance. Observe the temperatures and pressures during commissioning and
cleaning. A further selection criterion is the compatibility of the filling oil with the requirements of
the process media. For this reason, only filling oils that are harmless to health may be used in the
food industry, such as vegetable oil or silicone oil (see also the following section on "diaphragm seal
filling oils").
The filling oil used influences the thermal change, the temperature operating range of a diaphragm
seal system and the response time. A temperature change results in a volume change of the filling
oil. The volume change is dependent on the expansion coefficient and on the volume of the filling oil
at calibration temperature (constant in range: +21 to +33 °C (+70 to +91 °F)). The application range
can be extended by a filling oil with a lower expansion coefficient and a shorter capillary.
For example, the filling oil expands in the event of a temperature increase. The additional volume
presses against the process isolating diaphragm of a diaphragm seal. The stiffer a process isolating
diaphragm is, the greater its return force, which counteracts a volume change and acts on the
measuring cell together with the operating pressure, thus shifting the zero point.
Differential pressure The differential pressure transmitter influences the temperature operating range, the TK zero point
transmitter and the response time as a result of the volume of its side flange and as a result of its volume
change. The volume change is the volume that has to be shifted to pass through the complete
measuring range.
Differential pressure transmitters from Endress+Hauser are optimized with regard to the minimum
volume change and side flange.
96 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
0.05 bar (0.725 psi) ≤ pabs ≤ 1 bar (14.5 psi) pabs ≥1 bar (14.5 psi)
Silicone oil –40 to +180 °C (–40 to +356 °F) –40 to +250 °C (–40 to +482 °F) FMD77: A
FMD78: A, 1
High-temperature oil –10 to +200 °C (+14 to +392 °F) –10 to +400 °C (+14 to +752 °F) 3) 4) 5) FMD77: V
FMD78: C, 3
Inert oil –40 to +80 °C (–40 to +176 °F) –40 to +175 °C (–40 to +347 °F) FMD77: F
FMD78: D, 4
Vegetable oil –10 to +120 °C (+14 to +248 °F) –10 to +200 °C (+14 to +392 °F) FMD77: D
FMD78: B, 2
Low-temperature oil –70 to +80 °C (–94 to +176 °F) –70 to +180 °C (–94 to +356 °F) FMD77: L
FMD78: E, 5
Additional data:
Filling oil Density Viscosity Expansion coefficient 1) Notes 2)
Option 3)
Silicone oil 0.96 100 0.00096 suitable for foods FDA 21 CFR 175.105 FMD77: A
FMD78: A, 1
Inert oil 1.87 27 0.000876 For ultrapure gas and oxygen applications FMD77: F
FMD78: D, 4
Vegetable oil 0.94 9.5 0.00101 suitable for foods FDA 21 CFR 172.856 FMD77: D
FMD78: B, 2
1) The thermal change in the diaphragm seal and other important technical features can be found in the "Applicator Sizing Diaphragm Seal"
selection tool.
2) Only select FDA-approved filling oils for diaphragm seal devices with 3-A and EHEDG certification!
3) Product Configurator, “Fill fluid” ordering feature
Operating temperature range The operating temperature range of a diaphragm seal system depends on the fill fluid, capillary
length and internal diameter, process temperature and oil volume of the diaphragm seal.
The application range can be extended by using a filling oil with a smaller expansion coefficient and
a shorter capillary.
Endress+Hauser 97
Deltabar S PMD75, FMD77, FMD78
Response time The viscosity of the filling oil, the capillary length and the capillary internal diameter influence the
frictional resistance. The greater the frictional resistance, the longer the response time.
Furthermore, the volume change of the measuring cell influences the response time. The lower the
volume change of the measuring cell, the less filling oil has to be shifted in the diaphragm seal
system.
To help you select the right diaphragm seal systems for your particular applications, Endress+Hauser
provides its customers with the "Applicator Sizing Diaphragm Seal" selection tool, which is available
free of charge at "www.endress.com/applicator" or can be ordered on a DVD.
Information on cleaning Endress+Hauser provides flushing rings as an accessory to enable cleaning of the process isolating
diaphragm without removing the transmitter from the process.
For further information please contact your local Endress+Hauser Sales Center.
We recommend you perform CIP (cleaning in place (hot water)) before SIP (sterilization in place
(steam)) for pipe diaphragm seals. A frequent use of sterilization in place (SIP) will increase the
stress on the process isolating diaphragm. Under unfavorable circumstances in the long term view
we cannot exclude that a frequent temperature change could lead to a material fatigue of the process
isolating diaphragm and possibly to a leakage.
pi
–
max.
A0023961
98 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
Pressure on the negative side of the differential pressure transmitter (p–) when the container is
empty (minimum level):
Pressure on the positive side of the differential pressure transmitter (p+) when the container is
empty (minimum level):
DpTransmitter = p+ - p_
= – 149,9 mbar
A0023982
Result:
When the vessel is full, a differential pressure of –51.80 mbar (–0.762 psi) is present at the
differential pressure transmitter. When the vessel is empty, a differential pressure of
–149.90 mbar (–2.2485 psi) is present. A 500 mbar (7.5 psi)measuring cell is therefore necessary
for this application.
Capillary
In order to obtain more precise measurement results and to avoid a defect in the device, mount the
capillaries as follows:
• vibration-free (in order to avoid additional pressure fluctuations)
• not in the vicinity of heating or cooling lines
• insulate if the ambient temperature is below or above the reference temperature
• with a bending radius ≥ 100 mm (3.94 in)
• When using diaphragm seal systems with a capillary, sufficient strain relief must be provided to
prevent the capillary from bending (capillary bending radius ≥ 100 mm (3.94 in)).
• In the case of devices with diaphragm seals and capillaries, the zero point shift caused by the
hydrostatic pressure of the filling liquid column in the capillaries must be taken into account when
selecting the measuring cell. If a measuring cell with a small measuring range is selected, a
position adjustment can cause range violation.
Endress+Hauser 99
Deltabar S PMD75, FMD77, FMD78
TP Ta TP Ta
100 (3.94) A B
77 (3.03)
1 1
53 (2.09) C D
30 (1.18)
1 1
[°F] Tp [°C]
A
+752 +400
B Tp
572 300
D C
392 200
Ta
185 85
+32 0
−40 −40
A, B C, D
−94 −70 [°C]
−40 −35 −30 0 45 50 55 60 +85 Ta
[°F]
−40 −31 −22 +32 113 122 131 140 +185
A0025889
1 Insulation material
1)
Position Design Temperature isolator Option
2)
A Transmitter horizontal long MA
100 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
TP TU
1
100 (3.94)
E
+–
A0023984
1 Insulation material
1)
Position Design Ambient temperature TU Process temperature TP Option
2)
E U-bracket, Transmitter horizontal ≤ 70 °C (158 °F) max. 350 °C (662 °F)depending on
(for devices which require a CRN approval) diaphragm seal filling oil used
Endress+Hauser 101
Deltabar S PMD75, FMD77, FMD78
H1
+
A0023983
The maximum height difference is dependent on the density of the filling oil and the lowest pressure
that is ever allowed to occur at the diaphragm seal on the positive side (empty container), see the
following illustration:
[ft]
39
1
33
2
26
3
A 20
4
13
5
6.6
0.0
1 1.45 3 4.35 6 7.25 9 10.15 12 13.05 14.5 [psiabs]
B
A0023986-EN
A Height difference H1
B Pressure at diaphragm seal
1 Low-temperature oil
2 Vegetable oil
3 Silicone oil
4 High-temperature oil
5 Inert oil
102 Endress+Hauser
Deltabar S PMD75, FMD77, FMD78
RCM-Tick marking The supplied product or measuring system meets the ACMA (Australian Communications and Media
Authority) requirements for network integrity, interoperability, performance characteristics as well
as health and safety regulations. Here, especially the regulatory arrangements for electromagnetic
compatibility are met. The products are labelled with the RCM- Tick marking on the name plate.
A0029561
Ex approvals • ATEX
• FM
• CSA
• NEPSI
• IECEx
• GOST on request
• Also combinations of different approvals
All explosion protection data are given in separate documentation which is available upon request.
The Ex documentation is supplied as standard with all Ex devices→ 113.
EAC conformity The measuring system meets the legal requirements of the applicable EAC guidelines. These are
listed in the corresponding EAC Declaration of Conformity together with the standards applied.
Endress+Hauser confirms successful testing of the device by affixing to it the EAC mark.
Suitable for hygiene The device is available with hygienic process connections (overview: see order code). The materials of
applications the hygienic process connections in contact with foodstuffs comply with framework Regulation (EC)
1935/2004.
LCAUTION
Contamination in the process!
Risk of contamination if incorrect seals and parts are used!
‣ To avoid the risk of contamination, when installing the device comply with the design principles
of EHEDG, Guideline 37 "Hygienic Design and Application of Sensors" and Guideline 16 "Hygienic
Pipe Couplings".
‣ Suitable assemblies and seals must be used to ensure hygienic design in accordance with 3-A SSI
and EHEDG specifications.
‣ The leak-proof connections can be cleaned with the cleaning methods typical of this industry
(CIP and SIP). Attention must be paid to the pressure and temperature specifications of the
sensor and process connections for CIP and SIP processes (clean in place/sterilize in place).
‣ For diaphragm seal devices with 3-A and EHEDG certificates, only select filling oils with FDA
approval!
Endress+Hauser 103
Deltabar S PMD75, FMD77, FMD78
74 -
TYPE EL
October 2007
A0026782
The gap-free connections can be cleaned of all residue using the usual cleaning methods within
this industry.
Functional safety SIL/ The Deltabar S with 4 to 20 mA output signal has been developed in accordance with the IEC 61508
IEC 61508 Declaration of standard. The device can be used for flow, level and differential pressure monitoring up to SIL 3. For
Conformity (optional) a detailed description of the safety functions with the Deltabar S, settings and functional safety data,
see the "Functional safety manual - Deltabar S" SD00189P.
For devices up to SIL 3 / IEC 61508 Declarations of Conformity see:
Ordering information:
Product Configurator, order code for "Additional options 1", version "E"
CRN approval Some device versions have CRN approval. A CRN-approved process connection with a CSA approval
must be ordered for a CRN-approved device. These devices are fitted with a separate nameplate with
the registration number CRN 0F10524.5C .
Ordering information:
Product Configurator, order code for "Process connection; material" and
Product Configurator, order code for "Approval" (only in conjunction with an approved process
connection)
Other standards and The applicable European guidelines and standards can be found in the relevant EU Declarations of
guidelines Conformity. The following were also applied:
DIN 16086:
Electrical pressure measuring instruments, pressure sensors, pressure transmitters, pressure
measuring instruments, concepts, specifications on data sheets
EN 61326-X:
EMC product family standard for electrical equipment for measurement, control and laboratory use.
EN 60529:
Degrees of protection provided by enclosures (IP code)
Pressure Equipment Pressure equipment with allowable pressure ≤ 200 bar (2 900 psi)
Directive 2014/68/EU (PED)
Pressure equipment (having a maximum allowable pressure PS ≤ 200 bar (2 900 psi)) can be
classified as pressurized equipment in accordance with Pressure Equipment Directive 2014/68/EU. If
the maximum allowable pressure is ≤ 200 bar (2 900 psi) and the pressurized volume of the pressure
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equipment is ≤ 0.1 l, the pressure equipment is subject to the Pressure Equipment Directive (cf.
Pressure Equipment Directive 2014/68/EU, Article 4, point 3). The Pressure Equipment Directive
only requires that the pressure equipment shall be designed and manufactured in accordance with
the "sound engineering practice of a Member State".
Reasons:
• Pressure Equipment Directive (PED) 2014/68/EU Article 4, point 3
• Pressure equipment directive 2014/68/EU, Commission's Working Group "Pressure", Guideline
A-05 + A-06
Note:
A partial examination shall be performed for pressure instruments that are part of safety equipment
for the protection of a pipe or vessel from exceeding allowable limits (equipment with safety
function in accordance with Pressure Equipment Directive 2014/68/EU, Article 2, point 4).
Pressure equipment with allowable pressure > 200 bar (2 900 psi)
Pressure equipment designated for application in every process fluid having a pressurized volume of
<0.1 l and a max. allowable pressure PS > 200 bar (2 900 psi) shall satisfy the essential safety
requirements set out in Annex I of the Pressure Equipment Directive 2014/68/EU. According to
Article 13 pressure equipment shall be classified by category in accordance with Annex II. The
conformity assessment of the pressure equipment shall be determined by the category I under
consideration of the above-mentioned low pressurized volume. These devices shall be provided with
CE marking.
Reasons:
• Pressure Equipment Directive 2014/68/EU, Article 13, Annex II
• Pressure equipment directive 2014/68/EU, Commission's Working Group "Pressure", Guideline
A-05
Note:
A partial examination shall be performed for pressure instruments that are part of safety equipment
for the protection of a pipe or vessel from exceeding allowable limits (equipment with safety
function in accordance with Pressure Equipment Directive 2014/68/EU, Article 2, point 4).
Manufacturer declarations Depending on the desired configuration, the following documents can be ordered additionally with
the device:
• FDA conformity
• TSE-free: materials free from animal origin
• Regulation (EC) No. 2023/2006 (GMP)
• Regulation (EC) No. 1935/2004 on materials and articles intended to come into contact with food
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1
3
A0031778
Classification of process Endress+Hauser devices are designed in accordance with ANSI/ISA 12.27.01. allowing the user to
sealing between electrical waive the use and save the cost of installing external secondary process seals in the conduit as
systems and (flammable or required by the process sealing sections of ANSI/NFPA 70 (NEC) and CSA 22.1 (CEC). These
combustible) process fluids instruments comply with the North American installation practice and provide a very safe and cost-
in accordance with ANSI/ISA saving installation for pressurized applications with hazardous fluids. Please refer to the following
12.27.01 table for the seal class assigned (single seal or dual seal):
Further information can be found in the control drawings of the relevant devices.
Inspection certificate
EN10204-3.1 material wetted parts +Ra, Ra= surface roughness, dimensional check, inspection certificate ― ― 6 1) 2)
3) 4)
3.1 Material documentation, wetted metal parts, EN10204-3.1 inspection certificate JA
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PMI test (XRF), internal procedure, metal parts in contact with the medium KG 3)
Calibration
1)
Designation FMD77 FMD78 PMD75 Option
Cleaned of oil+grease 2) HA
2)
Cleaned for oxygen service HB
2)
Cleaned of PWIS (paint-wetting impairment substances) HC
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Ordering information
Detailed ordering information is available from the following sources:
• In the Product Configurator on the Endress+Hauser website: www.endress.com -> Click "Corporate"
-> Select your country -> Click "Products" -> Select the product using the filters and search field ->
Open product page -> The "Configure" button to the right of the product image opens the Product
Configurator.
• From your Endress+Hauser Sales Center: www.addresses.endress.com
Product Configurator - the tool for individual product configuration
• Up-to-the-minute configuration data
• Depending on the device: Direct input of measuring point-specific information such as
measuring range or operating language
• Automatic verification of exclusion criteria
• Automatic creation of the order code and its breakdown in PDF or Excel output format
• Ability to order directly from the Endress+Hauser Online Shop
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Pressure unit
1) The conversion factor for the pressure unit is based on a reference temperature of 4 °C (39.2 °F).
2) The conversion factor of the pressure unit refers to a reference temperature of 0 °C (32 °F).
Display
Display of the content of the main line (option depends on sensor and communication variant)
Damping
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Level
The following configuration data sheet must be completed and included with the order if the option
"F" or "I" has been selected in the Product Configurator, order code for "Calibration; Unit".
Example
Empty calibration [a]: ___________ Empty calibration ___________
Low pressure value (empty) [pressure unit] [a]: [Scaled unit]
Low measured
value (empty) –
B
Full calibration [b]: ___________ Full calibration [b]: ___________
High pressure value (full) [pressure unit] High level value [Scaled unit]
(full)
+
A
A0023985
1) The conversion factor for the pressure unit is based on a reference temperature of 4 °C (39.2 °F).
2) The conversion factor of the pressure unit refers to a reference temperature of 0 °C (32 °F).
Display
Display of the content of the main line (option depends on sensor and communication variant)
Primary value [PV] (default)
Primary value [%]
Pressure
Current [mA] (HART only)
Temperature
Level before lin.
Tank content
Error number
Alternating display
Damping
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Flow
The following configuration data sheet must be completed and included with the order if the option
"G" or the option "J" has been selected in the Product Configurator for the "Calibration; Unit" order
code.
1) The conversion factor for the pressure unit is based on a reference temperature of 4 °C (39.2 °F).
2) The conversion factor of the pressure unit refers to a reference temperature of 0 °C (32 °F).
Output Characteristic
Maximum pressure _______________ [pressure unit] Maximum pressure _______________ [pressure unit]
Maximum flow rate _______________ [flow unit] Maximum flow rate _______________ [flow unit]
(Lower Range Value (HART only)) (Lower Range Value (HART only))
Display
Display of the content of the main line (option depends on sensor and communication variant)
Damping
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Accessories
HistoROM®/M-DAT The HistoROM®/M-DAT is a memory module that can be attached to any electronic insert.
Ordering information:
Product Configurator, order code for "Additional options 1" or Additional options 2", version "N" or
as a separate accessory (part no.: 52027785).
Welding flanges and welding For details, refer to TI00426F/00/EN "Weld-in adapters, process adapters and flanges".
neck
Additional mechanical Oval flange adapters, pressure gauge valves, shutoff valves, siphons, condensate pots, cable
accessories shortening kits, adapter test, flushing rings, block&bleed valves, protective roofs.
For details see SD01553P/00/EN "Mechanical accessories for pressure measuring devices".
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Supplementary documentation
Field of Activities Pressure measurement, powerful instruments for process pressure, differential pressure, level and
flow:
FA00004P/00/EN
Safety Instructions (XA) Depending on the approval, the following Safety Instructions (XA) are supplied with the device. They
are an integral part of the Operating Instructions.
1)
Directive Electronic insert Documentation Option
ATEX II 1/2G Ex ia IIC T6 Ga/Gb (WHG) 4 to 20 mA HART, PROFIBUS PA, FOUNDATION XA00235P 1 (6)
Fieldbus
ATEX II 1/2G Ex ia IIC T6 Ga/Gb + ATEX II 1/2D Ex ia IIIC Da/Db 4 to 20 mA HART, PROFIBUS PA, FOUNDATION XA00243P 3
Fieldbus
ATEX II 1/2G Ex ia IIC T6+II 2G Ex d IIC T6 4 to 20 mA HART, PROFIBUS PA, FOUNDATION XA00242P B
Fieldbus
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1)
Directive Electronic insert Documentation Option
1)
Directive Electronic insert Documentation Option
1)
Directive Electronic insert Documentation Option
Installation/Control
Drawings
1)
Directive Electronic insert Documentation Option
FM DIP Cl.II,III Div.1 Gr.E-G, Zone 21,22 4 to 20 mA HART, PROFIBUS PA, FOUNDATION Fieldbus FM3017778 Q
FM NI Cl.I Div.2 Gr.A-D, Zone 2 4 to 20 mA HART, PROFIBUS PA, FOUNDATION Fieldbus XA01064P R
FM XP Cl.I Div.1 Gr.A-D, AEx d, Zone 1,2 4 to 20 mA HART, PROFIBUS PA, FOUNDATION Fieldbus XA01071P T
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1)
Directive Electronic insert Documentation Option
CSA C/US XP Cl.I Div.1 Gr.B-D, Ex d, Zone 1,2 4 to 20 mA HART, PROFIBUS PA, FOUNDATION Fieldbus ZD00229P V
CSA C/US Cl.II, III Div.1 Gr.E-G 4 to 20 mA HART, PROFIBUS PA, FOUNDATION Fieldbus CSA1509834 W
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