Oximetro Witt Oxybaby
Oximetro Witt Oxybaby
Oximetro Witt Oxybaby
1 Table of contents
1 Table of contents ......................................................................................................................................3
2 Introduction ...............................................................................................................................................5
2.1 Which symbols have been used?.....................................................................................................5
3 Scope ofdelivery .......................................................................................................................................6
4 Operating principle ...................................................................................................................................6
5 Sample Hold and Permanent operating modes .....................................................................................7
6 Power supply.............................................................................................................................................8
6.1 Charging rechargeable batteries ......................................................................................................8
6.2 Power supply unit operation .............................................................................................................8
7 Operation ...................................................................................................................................................9
7.1 Switching on .....................................................................................................................................9
7.2 Opening /closing needle cover .......................................................................................................10
7.3 Conducting measurements ............................................................................................................10
7.3.1 Sample Hold measurement .....................................................................................10
7.3.2 Measurement in Permanent mode .....................................................................11
7.4 Switching off ...................................................................................................................................11
8 Setting and managing the Oxybaby (program options)......................................................................12
8.1 Showing main menu, selecting or exiting menus ...........................................................................12
8.2 Entering or changing data using the buttons on the OXYBABY® ..................................................13
8.2.1 Entering data (Product names, users, production lines) ...................................................13
8.2.2 Modifying data (Product names, users, production lines) .................................................15
8.3 Menu structure of OXYBABY® 6.....................................................................................................16
8.4 Selecting operation mode...............................................................................................................18
8.5 Selecting or managing products.....................................................................................................18
8.5.1 Selecting products .............................................................................................................19
8.5.2 Exporting products.............................................................................................................19
8.5.3 Generating products ..........................................................................................................20
8.5.4 Deleting products...............................................................................................................20
8.5.5 Modifying products ............................................................................................................21
8.6 Selecting or managing users..........................................................................................................21
8.6.1 Selecting user ....................................................................................................................22
8.6.2 Exporting user....................................................................................................................22
8.6.3 Generating users ...............................................................................................................23
8.6.4 Deleting users....................................................................................................................23
8.6.5 Modifying users .................................................................................................................24
8.7 Selecting or managing lines (production line) ................................................................................25
8.7.1 Selecting line .....................................................................................................................25
8.7.2 Exporting lines ...................................................................................................................26
8.7.3 Generating lines ................................................................................................................26
8.7.4 Deleting lines .....................................................................................................................27
8.7.5 Modifying lines ...................................................................................................................27
8.8 Log data (stored measurement data).............................................................................................28
8.8.1 Displaying log data ............................................................................................................28
8.8.2 Deleting log data................................................................................................................29
8.8.3 Exporting log data..............................................................................................................29
8.9 Calibration ......................................................................................................................................29
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2 Introduction
The OXYBABY® is an ergonomic, cordless, one-hand oxygen and carbon dioxide analyser, used
for the preventive inspection of the shelf life of a food packed in modified atmosphere packaging
(MAP). It has a measuring range of 0 per cent by volume to 100 % per cent by volume O2 or CO2 in
non-combustible and non-aggressive gases, and can be used for determining the carbon dioxide
content as well as the residual oxygen content in food packaging.
Caution!
The device is not designed to be used in potentially explosive areas and may not be used
for measurements which involve burnable gases.
The OXYBABY® comes with an internal data memory for readings (ring buffer, for maximum num-
ber of data records refer to the Chapter on Technical data 14), which are retained in the memory
even when the device is switched off.
If the rechargeable battery is spent,
- the stored data is retained (e.g. product, user, manufacturing date),
- the data and time are retained for approx. one week (buffer capacitor).
The measured values can be copied to your PC using the optionally-available software for the
WITT Logger.
The OXYBABY® is equipped with a needle cover to protect the user.
Because of the variations in equipment your Oxybaby® may differ somewhat from these instruc-
tions.
Note !
A pointing hand is used to denote general information, which explains operating proce-
dures.
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3 Scope ofdelivery
The Oxybaby® is delivered as a complete unit.
Also included in the scope of delivery along with the analyser device:
®
(* The WITT Logger and the Oxybaby terminal program are not designed for
use with the "Russian" and "Japanese" language versions.)
4 Operating principle
The device uses the integrated pump to suck-in a gas sample from the packaging to be inspected
and routes it to an O2 and a CO2 measuring cell.
The O2 content in the aspirated gas mixture generates, in the chemical measuring cell, a weak
electrical voltage proportionate to the O2 content. This voltage is measured and converted to form a
concentration value, which is then shown on the display.
The CO2 measuring cell operates according to the infrared absorption principle.
Once the analysis is over, the O2 and CO2 concentration levels are stored with the date and time.
The internal memory is designed as a ring buffer (maximum number of stored measuring data: see
Technical data).
Everytime the memory is full, and a new measured value is stored, the oldest measured value is
overwritten. The assigned memory location is displayed by a segment bar at the top of the display.
The O2 measuring cell of the Oxybaby® has a service life of approx. 1.5 to 2 years with an
O2 content of 21 % per cent by volume. If the O2 content is higher than 21 % per cent by volume,
the service life for the O2 measuring cell is reduced (See Technical data for details).
The CO2 measuring cell is non-wearing.
Oxybaby® is equipped with automatic pressure compensation, which serves to prevent any falsified
test results through changing ambient pressures or gas pressures in the packaging.
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last measurement
06.04.2009 09:22:28
20.7 % O2
0.5 % CO2
Salami
A. Meier
Production line 12
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6 Power supply
The power supply is provided by means of a rechargeable battery pack with three integrated, re-
chargeable batteries (Type: see Technical data). The service life of the rechargeable battery pack
is dependent on the ambient conditions and the number of charge cycles.
If required, the rechargeable battery pack can be replaced. Only genuine WITT spare parts should
be used here, a new rechargeable battery pack can be ordered from WITT-Gasetechnik .
The charge status of the rechargeable batteries is denoted by a battery symbol in the top right cor-
ner of the display, a dark battery indicates: fully charged. The Oxybaby® switches off when the
rechargeable battery is spent.
The USB connection is disabled when the power supply unit / charger is being used.
Fold down lug on right side.
Insert combined USB charging cable / power supply unit cable into USB connection on the
OXYBABY®.
Insert the plug of USB charging cable / power supply unit cable into socket on power supply
(see Technical data).
OXYBABY® switches on and is now ready to perform measurements
You can change into the rechargeable battery mode at any given time.
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7 Operation
Note!
Before operating for the first time, charge the rechargeable batteries for 2 hours. (see Chap-
ter 6)
7.1 Switching on
Switch on device using .
When starting up the LCD display briefly shows the software version and the serial number of your
device. The "version" menu item enables you to display the data during operation (see Chapter
8.10.6).
Finally, the OXYBABY® is in the Measuring and display mode and shows the last measured
value:
last measurement
06.04.2009 09:22:28
20.7 % O2
0.5 % CO2
Salami
A. Meier
Line 12
The upper line of the display shows the date, time and operating mode of the last measure-
ment for your OXYBABY® . The symbol indicates the "sample Hold" operating mode, the
symbol denotes the "permanent" operating mode.
The memory space available at any given time is indicated by the bars below:
assigned memory capacity is displayed by darkened bar segments,
free memory space by empty bar segments.
The battery symbol at the right indicates the charge status for your OXYBABY®. A darkened
battery signifies: fully charged.
The last measured O2 / CO2 concentration level is shown by the OXYBABY® in the centre of
the display as per cent by volume.
Below the measured value the OXYBABY® shows the product designation, the name of the
user and the line (production line) for the last measurement.
Example: Product designation: Salami
User: A. Meier
Line: Line 12
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Open Close
Recommendation!
Open the needle cover immediately before a measurement and then close it again immedi-
ately after each measurement.
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During the permanent measurement, the current measured value is automatically stored
every 10 seconds along with the date and time.
If the power supply is connected through the USB interface (through plugged-in USB power supply
unit or a USB cable).
Disconnect USB power supply unit or USB cable.
Continue as described above in rechargeable battery mode.
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main menu
operation mode
products
user
line
log data
calibration
settings
Note!
If you press the key, you exit the main menu and return to the Measuring and display
mode, without changing the settings for your OXYBABY®.
The name of the currently-selected menu (main menu here) is shown on the top line.
The OXYBABY® is available with a series of program options, which you can select using the arrow
keys. The currently pre-selected program option appears in white lettering against a dark back-
ground:
press arrow key or until the desired program option is highlighted in black.
You may need to press the arrow key several times to access submenus that are not
shown on the display. The display of the submenus changes accordingly.
press the key. The corresponding submenu opens.
Note !
If you press the key, you exit the submenu and return to the main menu or the measur-
ing and display mode, without changing the settings for your OXYBABY® .
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The four arrow keys and the key can be used to enter text, e.g. new products, users or produc-
tion lines.
Entering characters:
letters or numbers can be selected using the arrow keys in the letter and
number field, a shaded border indicates the selected character.
Letters and number field:
1 2 3 4 5 6 7 8 9 0
a b c d e f g h i j
k l m n o p q r s t
u v w x y z - , .
You can also enter spaces, full stops, commas and hyphens (bottom right).
Press key, once the desired character has a border round it.
The character appears above the number field in the "Entered term" area (B).
To the right of the letters and number field you will find the following functions:
- "Delete" Del ,
- in the entered term, shift the cursor "_" to the left <- and right -> ,
- switch between upper and lower case using the Sft key and
- end with simultaneous save of the entry with End :
Using the arrow keys shift the cursor until the desired func- Del
tion is highlighted by the shared border
(shown here by the Shift key Sft <- ->
Sft
End
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In the entered term (B), the cursor is marked by a darkened underline "_", a position that has not
yet been assigned by a + symbol:
Example: Appenzeller K+++
You can shift the cursor "_" in the entered term as follows:
press the arrow keys until the
function "Cursor to the left (<-)“ or "Cursor to the right (->)" with the is marked with a border: <-
or -> .
You can save the entered term and complete the entry as follows:
press the arrow keys until
the "Save and end (End)" function is marked with a border: End .
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modify ....... A
Appppenzeller B
A darkened underline "_" denotes the cursor in the stored term (B).
When you enter a character, the character at this position changes to the new character just en-
tered; and the old character is overwritten with the new one.
If you wish to delete the character, move the shaded border using the arrow keys
until the Del function is marked (see above 8.2.1). Then press the key .
More characters can also be added.
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language
Deutsch, English, Espanol, Italiano ...
(see 8.10.2)
output search for Bluetooth device
(see Chapter 8.10.3)
Bluetooth device (BT device)
USB
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operation mode
permanent
sample hold
In the "operation mode" menu you can set the OXYBABY® to the permanent mode or the sample
hold mode. The currently pre-selected program option appears in white lettering against a dark
background:
use the arrow keys or to select the permanent or sample Hold mode .
products
select
export
generate
delete
modify
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select productselect
Salami
Mortadella
Salmon steak
Mortadella
Press the key. The OXYBABY sends the stored product data to the device and then re-
turns to the "products" menu.
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generate product A
Appenzeller K+++ B
Details on operating the keys / functions are available in the Chapter 8.2.
Details on entering new data see Chapter 8.2.1.
You can use the four arrow keys and the key of the OXYBABY® to enter the
new product (For details, see "Entering data", Chapter 8.2.1).
By using the four arrow keys and the " End " function you can save the new product and return to
the "products" menu.
If you do not wish to save the product, press the key, to exit the entry menu and return to the
"products" menu.
delete product
Salami
Mortadella
Salmon steak
The currently pre-selected product appears in white lettering against a dark background:
if you do not wish to delete a product, press the key, to exit the "delete product " menu
and return to the "products" menu.
Log data must not exist for the product that you wish to delete.
Use the arrow keys to select the product that you wish to delete.
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modify product A
Appppenzeller B
user
select
export
generate
delete
modify
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select userselect
Meissner
A. Meier
M. Müller
Meissner
The lower line then displays the last-active user, the middle shows the existing, created
user.
Use the arrow key or to change to the desired user name.
If you wish to select the user name:
press the key.
The newly selected user then appears in the lower line.
Press key to return to the "user" menu.
press the key. The OXYBABY sends the stored product data to the device and then re-
turns to the "user" menu.
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Details on operating the keys / functions are available in the Chapter 8.2.
Details on entering new data are available in Chapter 8.2.1.
Enter new user names using the four arrow keys and
the key (For details see "Entering data", Chapter 8.2.1).
Save the new user name using the four arrow keys and the " End " function and then return to the
"user" menu.
If you do not wish to save the user name, press the key to return to the "user" menu.
user delete
Schmitz
Meier
Lammers
The currently pre-selected user appears in white lettering against a dark background:
if you do not wish to delete a user, press the key, to exit the "delete" menu and return to
the "user" menu.
Log data must not exist for the user that you wish to delete.
Use the arrow keys to select the user that you wish to delete.
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A darkened underline "_" denotes the cursor in the stored term (B).
The following editing options are available to you:
- move the cursor "_" in the stored term up to the position that you wish to change.
- the character that you wish to change, overwrite or delete.
- enter a new character at the end of the term until the max. number of characters is reached.
By using the four arrow keys and the " End " function you can save the
changed product and return to the "user" menu.
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line
select
export
generate
delete
modify
line select
Line 1
Line 2
Line 38
Line 2
If you wish to exit the menu without making any changes: press the key.
The lower line then displays the last-selected line, the middle shows the existing, created lines
(production lines).
Use the arrow key or to change to the desired line.
If you wish to select the line:
press the key.
The newly selected line then appears in the lower line.
Press the key to return to the "line" menu.
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press the key. The OXYBABY sends the stored lines (production lines) to the device and
then returns to the "user" menu.
generate line A
Line K+++ B
Details on operating the keys / functions are available in the Chapter 8.2.
Details on entering new data are available in Chapter 8.2.1.
You can use the four arrow keys and the key to enter the new line (produc-
tion line) (For details see "Entering data", Chapter 8.2.1).
By using the four arrow keys and the " End " function you can save the new line and return to the
"line" menu.
If you do not wish to save the line, press the key, to exit the entry menu and return to the
"line" menu.
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delete line
Line 12
Line K12
Line 11
The currently pre-selected line appears in white lettering against a dark background:
If you do not wish to delete a line, press the key, to exit the "delete" menu and return to
the "line" menu.
Log data must not exist for the line (production line) that you wish to delete.
Use the arrow keys to select the line that you wish to delete.
modify line A
Line K12 B
If you do not wish to change the line, press the key, to exit without making a change and
return to the "Line" menu.
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log data
show
delete
export
The currently pre-selected program option appears in white lettering against a dark background.
You can run these program options:
- display stored measurement data (log data)
- delete stored measurement data (log data)
- export measured data (log data) on the export device that you configured in the "settings, output"
program option (see Chapter 8.10.3).
You can exit the "log data" program option as follows:
press the key and return to the main menu.
The middle part of the menu shows the concentration values for the measurements.
The arrow highlighted in bold, indicates the currently selected measurement, it displays the gas
concentration values.
Additional data for the currently selected measurement is shown in the bottom part of the menu:
- measurement date and time
- product, currently selected at the time of the measurement
- user, currently selected at the time of the measurement
- line, currently selected at the time of the measurement
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press the key. The OXYBABY sends the stored measured data (log data) to the device
and then returns to the "log data" menu.
8.9 Calibration
After selecting the "calibration" menu item in the main menu, the "calibration" menu opens.
The "Calibration" Chapter (see Chapter 9) describes in detail how you calibrate the OXYBABY®.
calibration
O2 Sensor 0.0 %
O2 Sensor 20.9 %
CO2 Sensor 0.0 %
CO2 Sensor 100 %
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8.10 Settings
After selecting the "settings" menu item in the main menu, the "settings" menu opens:
settings
The currently pre-selected program option appears in white lettering against a dark background.
You can run these program options:
- set date and time
- set menu language
- set data export at external medium
- set display contrast and brightness
- "version" enables you to display information on the OXYBABY® .
- "update" can be used to update the operating program for the OXYBABY®
Use the arrow key or to change to the desired program option.
28.03.2009
13:47:06
If you do not wish to change the data and time, press the key, to exit the entry menu and re-
turn to the "settings" menu.
The clock keeps running in the background while you are setting the date and time.
Press the right arrow key . The entry screen appears under the first number.
The right and left arrow keys enable you to move the cursor "_" under the number
that you wish to change.
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You can use the arrow keys and to change the numerical value.
8.10.2 Language
After selecting the "language" menu item in the "settings" menu, the "language" menu appears.
The currently pre-selected language appears in white lettering against a dark background. The title
bar at the top right always shows the name of the language in English.
The lower line shows the language in which the menu is currently being displayed.
language German
Deutsch
English
Espanol
Italiano
Nederlands
Deutsch
If you do not wish to change the language, press the key and return to the
"Settings" menu.
Use the arrow keys and to select the desired language.
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8.10.3 Output
After selecting the "output" menu item in the "settings" menu, the "select output" menu appears.
The currently pre-selected program option appears in white lettering against a dark background.
You can select one of the following options to export the data:
select output
search for Bluetooth (BT) devices and connect to one of the Bluetooth devices that are found
a Bluetooth device previously connected to the OXYBABY
export by way of the USB interface
The Bluetooth specifications for the OXYBABY® are available in the Technical data.
If you use a USB hub: the USB hub must be powered through a power supply unit.
Use the arrow keys and to select the desired export.
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Make sure that the Bluetooth device to which you wish to connect, is switched on and op-
erational (see manufacturer's instructions).
search BT-devices
please wait
The title bar changes to “search BT-devices” and the "please wait" message flashes on and off.
If the OXYBABY does not find any Bluetooth devices, repeat the search several times. It may be
that the desired Bluetooth device is temporarily unavailable.
1. ASL Ap1300-BT SN
2. XXXXXXXXXX
Use the arrow keys and to select the desired Bluetooth device.
Use the arrow keys and to select the "Bluetooth device" export.
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8.10.4 Contrast
After selecting "contrast" in the "settings" menu, the "contrast" menu appears.
contrast
modify contrast
The display then immediately shows the changes without saving them permanently.
Increasing contrast:
press arrow key or once or several times.
Decreasing contrast:
press arrow keys or once or several times.
Once the desired contrast has been reached:
press the key to save the contrast setting.
8.10.5 Brightness
After selecting "brightness" in the "settings" menu, the "brightness" menu appears.
brightness
modify brightness
The display then immediately shows the changes without saving them permanently. You
can choose between two brightness levels.
Increasing brightness:
press arrow key or .
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Decreasing brightness:
press arrow keys or .
8.10.6 Version
After selecting "version" in the "settings" menu, the "show version" menu appears.
show version
OXYBABY VI 08.May 09
Device no. 12345678
DSP module G1 - 010101
LDP module L1 - 010102
CO2 module L1 - 010102
MIO module M2 - 030101
The display shows the OXYBABY® version, the device number and some manufacturer-specific
data.
If you wish to exit the "version" menu:
press the key to return to the "settings" menu.
8.10.7 Update
You can update the OXYBABY® operating software. The update is available on an SD card. During
an update all the entered data (products, lines, users) and all log data are retained.
Fold down lug on right side.
Connect USB power supply unit to the OXYBABY®.
Slide the update SD card as far as possible into the SD inter-
face until it latches into place. The contacts must be aligned
towards the OXYBABY® and face upwards to the display.
The OXYBABY® has to be connected to the USB power supply unit during the update.
Following a successful update, the display returns to the measuring and display screen.
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9 Calibration
The OXYBABY® has to be calibrated at regular intervals.
For the majority of applications a weekly calibration will be sufficient, however, for more ac-
curate test results, it is advisable to run a calibration before starting an actual test.
Changes to the ambient conditions (e.g. powerful vibrations during transit or significant
changes in temperature) then require calibration to be performed!
Make sure that the device is stable during each calibration process.
For accurate test results we advise calibrating the O2 sensor first and then the CO2 sensor.
Calibration of the OXYBABY® is conducted in four stages:
calibration of the zero point for O2 analysis.
(Recommended is 100 per cent by volume N2 or argon)
calibration of the zero point for CO2 analysis.
(Recommended is 100 per cent by volume N2 or argon)
calibration of the calibration point for O2 analysis.
calibration of the calibration point for CO2 analysis.
(Recommended is 100 per cent by volume CO2)
In the "calibration" menu (see Program options Chapter 8.9):
select the desired calibration process using and and start with .
The upper bar in the display flashes on and off as long as the calibration process is active. Once
the calibration process has finished, an acoustic signal is sounded and the upper line of the display
stops flashing.
Caution!
For all measuring and calibration processes make sure that the measuring cell in the OXY-
BABY® does not have pressure applied to it. The gas to be analysed must always be aspi-
rated by the integrated pump at atmospheric pressure (= ambient pressure).
Do not suck in any fluids!
Non-observance of this may result in incorrect measurements, or damage to the device.
Only after the pressure regulating valve/hose system has been sufficiently rinsed (to displace the
ambient air):
hold the needle in the OXYBABY® in the hose so that the flowing gas can be sucked-in. Then
start the calibration with .
Insert the needle far enough into the hose to ensure that gas does not accumulate in the
hose and pressure is not built up!
Keep the needle in the hose until the calibration process has been completed.
Wait until an acoustic signal is sounded.
The OXYBABY® automatically accepts the calibration value. At the same time, the display is cor-
rected to 0.0 % if necessary.
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You can calibrate the measuring point (20.9%) using fresh, clean ambient air!
Calibration is to be performed using clean oil and pure air, as otherwise the chemical meas-
uring cell may be damaged!
Then - only - after the pressure regulating valve/hose system has been sufficiently purged
(to displace the ambient air):
hold the needle in the hose so that the flowing gas can be sucked-in.
Insert the needle into the hose far enough to ensure that gas does not accumulate in the
hose and that pressure is not built up.
Keep the needle in the hose until the calibration process has been completed.
In the "Calibration" menu:
select the "CO2 sensor 100 %" calibration using and .
Start calibration with .
Wait until an acoustic signal is sounded.
The OXYBABY® automatically accepts the calibration value.
At the same time, the display is corrected to, e.g. 100% CO2.
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Each time the device issues a fault message an acoustic warning is sounded. The respec-
tive warning flashes in the display!
zero gas high O2 or CO2 content in sup- Supply gas with 0% O2 or CO2 content
plied gas ≥ 7.0%
sensor defect Needle / filter clogged up Check needle and filter for signs of clog-
ging, and then clean or replace, if neces-
sary
O2 sensor faulty
Replace O2 sensor
needle blocked Needle / filter clogged up Check needle and filter, clean or replace if
necessary
Display remains Power supply unit or re- Rule out any other causes (see Chapter
dark chargeable battery faulty. 11.3), if faulty, send OXYBABY® to the
WITT after-sales service
The OXYBABY® Pump faulty Rule out any other causes (see Chapter
does not "hum" 11.4),
when you start if necessary, send OXYBABY® to the WITT
the measure- after-sales service
ment.
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Last measurement
06.04.2009 09:22:28
needle blocked
Salami
A. Meier
Production line 12
Insert the needle into the hose far enough to ensure that gas does not accumulate
in the hose and that pressure is not built up.
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filter (1)
needle (2)
Fig. 2
Unscrew needle cover (3) in counterclockwise direction.
Replace filter (1).
Check needle (2) for flow rate:
pierce needle (2) with included fine wire. If this is not possible, replace needle.
If the fault persists, send the device to WITT after-sales service.
Caution:
never use the OXYBABY® without a filter!
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Plug (3)
Screw (1)
Caution!
Make sure during assembly that hoses and cables are not damaged, crushed or kinked.
Screw the O2 sensor in a clockwise direction far enough into the knurled nut, until the sen-
sor thread is hidden complete by the knurled nut.
Install the new O2 sensor in reverse order.
Switch on device.
The device now needs to be calibrated (see Chapter 9) .
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If the display on your OXYBABY® remains dark, the rechargeable battery or the power supply unit
may be faulty.
It may be necessary to try it out on several PCs, it will only work on a PC that is compatible
with the USB standards.
Insert USB cable into USB connection on the OXYBABY®.
If the display lights up and shows the measuring and display screen, the power supply unit is
faulty. Order a new power supply unit (order number see Chapter 3, scope of delivery).
If the displays stays dark, send the device to WITT after-sales service.
Please do not confuse this with the automatic switch-off function, which is enabled when
the device is not used. The Oxybaby® switches off automatically if it does not receive any
commands for approx. 2 minutes (e.g. key actuations or measurements). (see Chapter 7.4).
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The WITT Logger PC application will not operate if the language on the OXYBABY® is con-
figured for Russian or Japanese.
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14 Technical data
Erection (application): interior (Hand-held device)
Degree of contamination: 2 (with regard to leakage paths according to VDE 0160)
Degree of protection: IP54
Storage temperature: min. -20 °C max. 70 °C
Operating ambient temperature: min. 5 °C max. 40 °C
Gas inlet temperature: min. 5 °C max. 40 °C
Relative air humidity: ≤ 90 %, non-condensing at +20 °C
≤ 50 %, non-condensing at +40 °C
Maximum operating altitude: max. 4000 m above mean sea level.
Dimensions (HxWxD) in mm: 187 x 106 x 91
Weight: approx. 600 g
Note:
the service life is significantly dependent on the O2 concentration level of the
gas to be analysed!
Sensor service life = 360000%-h at 20 °C.
Example for sensor with gas mixture 21% O2 in CO2:
360000%-h : 21% : 24h = 714 operating days = 1.96 years
Example for sensor with gas mixture 80% O2 in CO2:
360000%-h : 80% : 24h = 187 operating days = 0.51 years
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CO2 analysis
Accompanying gases: non-combustible, non-corrosive gases (typical: N2, O2,
optional Ar)
Measuring principle: IR adsorption
Measuring range: 0...100 per cent by volume
Measuring accuracy: ±2% FS at 20 °C (±2% CO2)
Service life: practically non-wearing
Measurement type: random sample/continuous
Response time: ≤5s
Relative air humidity: ≤ 90 %, non-condensing at +20 °C,
≤ 50 %, non-condensing at +40 °C
Operating temperature range: 0...+40 °C, non-condensing
Calibration type: 2 point calibration (0-point, measuring range)
Zero gas (recommended): 100% N2 or 100% argon
Calibration gas (recom- 100% CO2
mended):
Max. operating pressure (Ü): Atmosphere
Bluetooth specifications:
Bluetooth versions: Bluetooth 2.0 EDR/ 2.0 / 1.2 / 1.1
Frequency: 2402 - 2480MHz
Transmission method, FHSS (Frequency Hopping Spread Spectrum) /
modulation: GFSK (Gaussian Frequency Shift Keying)
Codification: 128 bit
Channels: 79 channels each with 1 MHz bandwidth
Transfer rate: 9600 baud
Transmission power (Class 1): max.15 dBm (output level relative to 1 mW)
Receiver (sensitivity): -80dBm typ. (output level relative to 1 mW)
Range (Class 1): max. 100 m (open ground)
Type of Bluetooth device: master
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