Loadmaster 800i/8000i

On-Board Weighing System

Calibration

RDS Part No.: S/DC/500-10-576

Document Issue: 1.31: 20/10/08
Software Issue: PS312-002 rev. 03 (LM8000i)
PS313-002 rev. 03 (LM800i)

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 Electromagnetic Compatibility (EMC)

This product complies with Council 2004/108/EC when

installed and used in accordance with the relevant
instructions.

Service and Technical Support

PLEASE CONTACT YOUR NEAREST DISTRIBUTOR

If unknown then fax +44 (0) 1453 733311 for further
information.
Our policy is one of continuous improvement and the
information in this document is subject to change
without notice.
Check that the software reference matches that
displayed by the instrument.

© Copyright RDS Technology LTD 2008

\UK576131.DOC

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 1 – CALIBRATION SUMMARY

1 CALIBRATION SUMMARY ______________________________________________ 4

2 LOADMASTER 800I/8000I - COMMON CALIBRATION_____________________ 5

2.1 Sensor Setup _________________________________________________________________________ 5
2.1.1 General setup for loading shovels .................................................................................................... 6
2.2 Auto Cal ______________________________________________________________________________ 7
2.2.1 Dyn. Diff. Setup ................................................................................................................................. 7
2.2.2 Static Speed Compensation (‘Static Empty Lift’) .............................................................................. 7
2.2.3 Dynamic Speed Compensation (‘Dyn. Speed Comp’) ..................................................................... 7
Fast Speed calibration (Use Loaded Bucket) ................................................................................... 7
Slow Speed calibration ..................................................................................................................... 8
2.2.4 Static Speed Compensation (‘Static Full Lift’)................................................................................... 8
2.2.5 Static Compensation (‘Static Comp’)................................................................................................ 8
2.2.6 Zero................................................................................................................................................... 9
2.2.7 Cal Weight (Weight Calibration)........................................................................................................ 9
Dynamic Calibration Routine ............................................................................................................ 9
Static Calibration Routine.................................................................................................................. 9
2.2.8 Angle Calibration (optional) .............................................................................................................. 10
Zero................................................................................................................................................... 10
2.3 Calibration Factors ___________________________________________________________________ 11
2.3.1 Displaying Static/Dynamic Factors ................................................................................................... 11
2.3.2 Dynamic Speed Compensation Factors (Dyn. Comp. Factors)........................................................ 11
2.3.3 Static Speed Compensation Factors (Stat. Comp. Factors) ............................................................. 12
2.3.4 Surge Setup (optional)...................................................................................................................... 13
2.3.5 Angle Factors (Optional Angle Sensor) ............................................................................................ 13
2.4 'NUDGE' Calibration __________________________________________________________________ 14
When to nudge the calibration.......................................................................................................... 14
How to nudge the calibration............................................................................................................ 14
2.5 Calibrating alternative attachments ____________________________________________________ 15
2.5.1 Programming an attachment ............................................................................................................ 15
2.5.2 Select an attachment for calibration ................................................................................................. 15
2.5.3 Calibrating an alternative attachment ............................................................................................... 15

3 GENERAL SYSTEM SETTINGS __________________________________________ 16

3.1 Output Port Setup ____________________________________________________________________ 16
3.1.1 Set Output Mode............................................................................................................................... 16
ASCII Text Output for Printers ........................................................................................................... 16
Comma-delimited Output.................................................................................................................. 17
Input/Output to the RDS Data Card Module ..................................................................................... 17
Input/Output via Radio Modem......................................................................................................... 17
Input/Output via GSM Modem .......................................................................................................... 17
3.2 Weighing Units_______________________________________________________________________ 17
Units .................................................................................................................................................. 17
Resolution ......................................................................................................................................... 17
Maximum Weight .............................................................................................................................. 17
Overload Log .................................................................................................................................... 17
3.3 Bleep Setup _________________________________________________________________________ 18
3.4 Change PIN Numbers_________________________________________________________________ 18
3.5 Reset Factors ________________________________________________________________________ 18
3.6 Store / Restore / Print Cal Data ________________________________________________________ 19
3.7 Telemetry Option - Enable/Disable _____________________________________________________ 19
3.8 ‘Module’ _____________________________________________________________________________ 19

4. THE SETUP MENU_____________________________________________________ 20

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 1 – CALIBRATION SUMMARY

1 Calibration Summary
The LM 800i/8000i system operates in a Non-Approved weighing mode. Dynamic or Static weighing is
possible. The system is designed to be easily upgradable for Weights and Measures approved operation,
either for automatic weighing (AWI) or non-automatic weighing (NAWI).
There are a large number of functions within the calibration menu in order to optimise the performance of the
weighing system for a particular loading shovel and the method in which it is to be used. Many settings need
only be made on the initial installation.
The calibration procedure is summarised below. For full information on any of the settings in the calibration
menu (ref. Section 4).
Step 1 Work the machine until it is up to the normal operating temperature.
Step 2 Go to the "Sensor Setup" menu (ref. section 2.1)
(i) Set "Ram Ratio" The default value of 1.3000 is OK initially, for almost all makes and models of machine.
Known figures are given below.

Machine Ram Ratio

VOLVO L120, L150 1.34
ALL KOMATSU 1.30
ALL CASE 1.30
ALL CAT MODELS 1.25

For other machines, you can determine the correct ram ratio by the following method: - Do a slow lift and then
a fast lift. If the weight readings are the same, the Ram Ratio is correct. If the fast lift reading is greater then
reduce the ram ratio, and vice versa.
(ii) Set "Dual Sensor" to "DIFF".
(iii) The default settings for "Live Static" (AUTO), and "Mode" (DYN/STAT) enable both dynamic and static weighing
modes, and a live readout for the "last bucket" weighing mode. If you require static weighing mode only or
dynamic weighing mode only, you must change these settings accordingly.
NOTE: Some CASE and Liebherr machines should be operated only in Static weighing mode.

Step 3 Go to the "AutoCal" menu (ref. section 2.2)

Follow the screen prompts for the calibration routine ("Dyn. Diff Setup", “Static Empty Lift”, "Dyn. Speed
Comp.", “Static Full Lift”, "Static Comp.", "Zero" and then "Cal Weight"), to establish accurate weighing. To
perform the weight calibration ("Cal Weight"), load the bucket (preferably to its full capacity) with a known
weight of material.
NOTE: If you don't know the exact weight, you can make an estimate and then use the "NUDGE" facility afterwards to
correct the calibration factors.
The calibration figures resulting from the AUTOCAL procedure will apply to loading attachments 'A' to 'H'. To
ensure accurate results when using a different attachment, adjust the calibration using the NUDGE facility.
Step 4 Check the weight reading (ref. section 2.4)
Zero the system and load a truck. Note the weighbridge (weigh scale) reading against the instrument reading.
If they are different, use the NUDGE facility to enter the two readings. The calibration factors are adjusted
automatically.
Step 5 Operator Instruction.
Please discuss the loading sequence and loading routine with the operator(s) of the loading shovel. Ride with
the operator and explain the weighing methods, auto kick-out, auto / manual entry, and the importance of
smooth operation while weighing.

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 2 - LM800/ 8000 COMMON CALIBRATION

2 Loadmaster 800i/8000i - Common Calibration

2.1 Sensor Setup
Sensor setup should be done before any other calibration. The sensor settings apply regardless of which
attachment is selected.
Select the 'Sensor Setup' screen (figure. 2).

1. Calibration (Enter PIN*)

8. Sensor Setup

*Default Factory PIN = 4084

"No. of samples" is the number of times the instrument takes a signal
from the pressure sensor(s).
"Sample Time" is the time taken for each sample in seconds. Figure 2
"Auto Static" is the time delay after reaching the weighing position
before the instrument samples the weight. This delay allows the system
to settle down and helps to give consistent readings.
"Live Static" -The 'Off' setting has the effect of 'freezing' the weight reading when weighing in Static weighing
mode. The 'On' setting allows a 'live' readout when the bucket is in the weighing position. This is not suitable for
'weighing on the move' operation. See '2.3.2 Static Compensation' for the best setup for 'live static' weighing.
“Static Speed” - Enables speed compensation for static weighing. This setting needs to be switched ‘On’ for
certain machines, and in particular, CAT 966, 972 and 980 models. The majority of other loaders will not
require ‘Static Speed Compensation’
"Dual Sensor:" "Off" Single load sensor installation
"Dual" (Not used)
"Diff" Dual pressure sensor installations (Static or Dynamic operation). The second sensor measures back-
pressure on the return side of the lift ram circuit.
"Sum" Strain sensor applications. Sensor readings are added.
"Avg" Strain sensor applications. Sensor readings are averaged.
The 'Dual Sensor' setting should always be set to 'Diff'. This enables the system to zero at any lift speed..
"Ram Ratio" is the ratio of the area A1/A2 of each side of the ram piston (figure 3). The default value of 1.3000
is OK initially, for almost all makes and models of machine. You can determine the correct ram ratio by the
following method. Do a slow lift and then a fast lift. If the weight readings are the same, the Ram Ratio is
correct. If the fast lift reading is greater then reduce the ram ratio, and vice versa.
Figure 3

"Nudge Key" - The option to switch off the NUDGE facility so that it no longer appears on the 'SETUP' screen.
"Zero Check" - Enables the "ZERO CHECK” function. (Default 'OFF' for LM800/8000).
"Mode" - This selects which weighing mode should be used. On LM 8000 models, "Dyn/Stat" is the default.
"Dyn" only or "Stat" only can be selected.
"Angle Sensor" Optional.
Enables the angle sensor input and selects the vertical axis orientation of the sensor. Select the icon matching
the orientation of the electrical junction box (looking forwards from the cab).

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 2 - LM800/ 8000 COMMON CALIBRATION

“Sample type” : “STD” sets the system to sample a dynamic weigh procedure in the standard format, as used
in the Loadmaster 8000 series with earlier S/W version PS300-026 rev.38
“ADV” sets the system to sample a dynamic weigh procedure in a new format. This mode should generally be
selected, as it should be consistently more accurate in use.
Where this option is selected it will be necessary to mount the Ref / Dir sensors about 200mm from the boom
pivot pin, centre,set.

2.1.1 General setup for loading shovels

Check that the initial settings are as given below. These are suitable for
almost all makes and model of machine whether operated in Dynamic
weighing mode or in Static weighing mode.
Setting Dynamic or Static mode
Num. Samples 1
Sample Time 1.2
Auto Static 2.0
Ram Ratio 1.3000
Live Static On
Static Speed Off (‘On’ for CAT 966, 972 and 980)
Dual Sensor Diff
Nudge On
Zero Check Off
Mode Dyn/Stat
Angle Sensor Off
Sample type ‘ADV’ (in accordance with Ref. /Dir. Sensor installation)

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 2 - LM800/ 8000 COMMON CALIBRATION

2.2 Auto Cal

After "Sensor Setup", do an "Auto Cal".

1. Calibration (Enter PIN*)

1. Auto Cal

The instrument will automatically advance from Auto Cal step 1 (Diff.
Setup) to step 5 (Cal Weight). You can however, still select from the
Auto Cal menu in any order.

Figure 4
2.2.1 Dyn. Diff. Setup
This function is active only when the "Dual Sensor" setting on the "Sensor
Setup" page is set to "Diff". Diff. Setup compensates for oil temperature
(LM 9000 only) and backpressure fluctuation in the hydraulics.
Follow the screen prompts.
Lift an EMPTY bucket at fast speed and press ENTER.

Lift an EMPTY bucket at slow speed and press ENTER.

The instrument then displays the message "Calibration Done". Press the
'ESC' key to continue the Auto Cal. (‘Static Empty Lift’). Figure 5a

2.2.2 Static Speed Compensation (‘Static Empty Lift’)

NOTE: This function is enabled only when the "Static Speed" setting on the
"Sensor Setup" page is set to "On", otherwise this screen will not appear.
Follow the screen prompts.
Lift an EMPTY bucket at fast speed to the static weigh point (kickout),
allow the system to weigh and then press ENTER.
Lift an EMPTY bucket at slow speed to the static weigh point (kickout),
allow the system to weigh and then press ENTER. The instrument then
displays the message "Calibration Done".

Figure 5b

2.2.3 Dynamic Speed Compensation (‘Dyn. Speed Comp’)

By default, dynamic speed compensation is switched off until the Auto
Cal routine is performed.

Fast Speed calibration (Use Loaded Bucket)

Fill the bucket (you don't need to zero beforehand). With the menu
pointer opposite the symbol, lift the bucket at full speed. The
instrument will bleep once then display the frequency output of each
pressure sensor, and the lift speed in milliseconds.
Press ENTER to confirm. The menu pointer will then move opposite the
icon and display the prompt "Slow Lift" (fig. 6).
Figure 6

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 2 - LM800/ 8000 COMMON CALIBRATION

Slow Speed calibration

1. With the menu pointer opposite the symbol, lower the bucket then
slowly lift through the weighing position again. If you lift too quickly, the
display will flash 'Error'. If so, lower the bucket and try again. The
instrument will bleep once, then display the frequency output of each
pressure sensor, and the sample time in milliseconds (fig. 7).
2. Press ENTER to confirm.
3. The instrument then displays the message "Speed Compensation Set".
4. Press the 'ESC' key to continue AUTOCAL (Static Full Lift).
NOTE: The percent figures relate to the 'Proportional Scaling' function. This
function predicts the difference in Speed Compensation required for light Figure 7
and heavy loads in the bucket. This compensates for hydraulic
inefficiencies and the frictional behaviour of the lift system.

2.2.4 Static Speed Compensation (‘Static Full Lift’)

On machines where a substantial difference in displayed weight is experienced with changes in engine speed /
speed of lift (for example G series Caterpillar loaders) this option can be turned to ON. Doing so will enable
the Static Speed Compensation items within the Autocal menu and will turn on the Speed Compensated Static
weighing function. This will allow the Loadmaster to apply a compensation value to the displayed weight
based on the speed of lift, and should result in far more stable displayed weights where changes in speed of
lift are experienced.
NOTE: This function is enabled only when the "Static Speed" setting on the "Sensor Setup" page is set to "On",
otherwise this screen will not appear.
Follow the screen prompts.
Lift a FULL bucket at fast speed to the static weigh point (kickout), allow
the system to weigh and then press ENTER.
Lift a FULL bucket at slow speed to the static weigh point (kickout), allow
the system to weigh and then press ENTER. The instrument then
displays the message "Speed Compensation Set".

Figure7b

2.2.5 Static Compensation (‘Static Comp’)

By default, Static Compensation is switched off until the Auto Cal routine
is performed.
Static compensation takes effect when the bucket is stationary at the
weighing position. It enables the live static reading to become more
stable over the sampling period and improves the accuracy of the weight
reading.
Calibration is fully automatic. At the screen prompt, lift a FULL bucket
SLOWLY to the weighing position. The screen then plots two graphs
each with 30 samples for load sensors A and B (something similar to fig.
8). The calibration routine runs for 45 seconds and then displays the
Figure 8
message 'Calibration Done'.
Press the 'ESC' key to continue AUTOCAL (Zero).

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 2 - LM800/ 8000 COMMON CALIBRATION

2.2.6 Zero
1. Lift the empty bucket at maximum speed. The instrument will bleep once when the weight is taken. ENTERING
to set "Dynamic Zero" is automatic.
2. Lift the bucket to the weighing position. The instrument will bleep twice. ENTERING to set "Static Zero" is
automatic.
3. Press the "ESC" key to continue AUTOCAL (Cal Weight).
NOTE: Sticky material, bucket wear, or faulty electronics can cause variation from zero.
Zero the system for each each different attachment used. Zero measurements are viewed on the “Dynamic
Factors” and “Static Factors” screens.

2.2.7 Cal Weight (Weight Calibration)

If both dynamic and static weighing (Dyn/Stat) mode is enabled, then
both a dynamic calibration routine and static, weight calibration routine
are performed. If either dynamic weighing only ("Dyn"), or static weighing
only ("Stat") mode is set, then the appropriate calibration routine will
apply.
1. Zero the empty bucket.
2. Load the bucket (preferably to its full capacity) with a known weight of Figure 9
material.
NOTE: If you don't know the exact weight, you can make an estimate and then
use the "NUDGE" facility afterwards to correct the calibration factors.
3. Select the "Cal Weight" screen (fig. 9).

Dynamic Calibration Routine

NOTE: If you want to do the static calibration first, press the key.
indicates that speed compensation is enabled.
Figure 10
4. Lift the bucket at maximum speed through the weighing position. The
screen will display a weight reading and the message 'Enter New Load'
(fig. 10).
5. Key-in the known weight (or the estimated weight) and press ENTER.
The instrument now calculates the Dynamic Cal. factor based on the
weight entered. The screen will display the message "Confirmed".

Static Calibration Routine

Normally, the "Static Calibration" routine follows automatically after the
Dynamic calibration routine (see note above). The message "Lift Full
Bucket To Reference Position" is displayed (fig. 11).
6. Lift the full bucket to the weighing position. The display will give a weight Figure 11
reading and the message "Enter New Load" (fig. 12).
7. Key-in the known weight (or the estimated weight) and press ENTER.
The instrument now calculates the Static Cal. factor based on the weight,
then displays the message "Calibration Done".
8. Press the 'ESC' key to continue AUTOCAL (Angle Calibration).
NOTE: The Angle Calibration routine and Temperature Calibration routine are
disabled. Pressing the "ESC" key returns you to the AUTOCAL menu.
Alternatively, exit calibration mode by selecting the MAIN screen.

Figure 12

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 2 - LM800/ 8000 COMMON CALIBRATION

2.2.8 Angle Calibration (optional)

NOTE: All factors in the "Angle Factors" screen should be manually set to zero
(except the Alarm Threshold Angle which is 10° by default) before
carrying out the angle calibration. This is especially important if you have to
recalibrate the angle compensation, after the first attempt was incorrect.
Calibration consists of a Zero routine (you have the option to skip this
step) followed by five lift sequences. The live readings of both angles are
displayed in the box.
shows dynamic weighing mode is selected. Press and hold the
key to switch between static and dynamic weighing. Only Dynamic or
Static compensation should be carried out, not both. If mainly weighing Figure 14
Dynamically, carry out this procedure dynamically, and vice versa.

Zero
1. Select "Set Angle Zero" using the down arrow key and press ENTER.
2. Park the loader on level ground. Press the ENTER key to zero both
offsets. The next screen is then displayed (fig.15).

The icons at the bottom of this and

subsequent screens indicate the required position and the present angle. Figure 15
3
3. With the loader still on level ground, lift a /4 full bucket. A weight is
displayed. Press ENTER to confirm and move to the next screen.
NOTE: If either slope angle indicated inside the box is over 2 degrees, a warning
triangle flashes on-screen, and the appropriate icon flashes inside the
box.
4. Move the machine so that it is on a forward slope (i.e.80), following the
icons on the lower part of the screen. The adjacent slope (i.e. right
hand/left hand) should be not more than 2 degrees off level. Again, the
warning triangle will flash if the angle is exceeded. Repeat the lift and
press ENTER to confirm and move to the next screen.
5. Repeat the lift sequence as prompted by the calibration screens, on a
backward slope, then a right hand slope, and finally a left-hand slope.
When the last lift is entered, the screen will display the message "Angle
Calibration Complete".
6. Press the 'ESC' key to finish AUTOCAL .
If a re-calibration is required, all factors on the ANGLE FACTORS page
must be manually set to ZERO before carrying out the procedure again

10

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 2 - LM800/ 8000 COMMON CALIBRATION

2.3 Calibration Factors

The previous pages cover "Sensor Setup" and "Auto Cal" on the "Calibration" menu. With the exception of "6.
Surge Factors" , the menu items,
2. Static Factors
3. Dynamic Factors
4. Dyn. Comp. Factors
5. Stat. Comp. Factors
6. Surge Factors
7. Angle Factors
simply display the factors resulting from the Auto Cal routine for the
attachment selected. Also, Speed compensation/Static Compensation
can be switched on or off.

Figure 16

2.3.1 Displaying Static/Dynamic Factors

These are the factors resulting from the AUTOCAL routine. From the
"Calibration " menu, select "2. Static Factors” or "3. Dynamic Factors" to
display them (fig. 17a). The Zero factors are also stored here. The first
Zero factor (for both A and B sensors) refers to the initial Autocal Zero
which is carried out on initial verification. The second Zero factors is the
frequency stored at the initial switch on bucket Zero. The third Zero
factor is the frequencies stored during any other Zero routine. These are
used to perform the Zero Setting Checks.

Figure 17a

2.3.2 Dynamic Speed Compensation Factors (Dyn. Comp. Factors)

From the "Calibration" menu, select "4. Dyn. Comp Factors". There are two screens displaying various factors
that can be edited if required (17b, 17c). Press to advance to the second screen.

Figure 17b Figure 17c

The first screen enables Dynamic Speed Compensation and Proportional Scaling to be switched on or off.
NOTE: There are two Speed compensation options: - "Type 1" and "Type 2". After performing the Auto Cal routine,
Speed Compensation is automatically set as "Type 1" ( ). For hydraulic systems, Type 1 ( )
should be set.
The second page shows the lift speed alarm limits in milliseconds. If the lift speed between the reference sensor
and the direction sensor is faster than the “Fast Time” (the smaller value), the symbol appears on the MAIN
screen. If the lift speed is slower than the “Slow Time” (the larger value), then the symbol is displayed.
“Curve A” and “Curve B” give the correction for the change in lift speed. If a fast lift gives a lower weight reading
than the slow lift, then the figure should be decreased, and always –ve e.g. changing –11.0 to –10.0.

11

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 2 - LM800/ 8000 COMMON CALIBRATION

Proportional Scaling
Proportional Scaling is used to compensate for efficiency losses in a dynamic or static lift, and is a scaling
factor based on the maximum load of the machine. It is important to perform the Speed Calibration routine
with the maximum load in the bucket.
The “Prop” factors give the reduction in speed compensation for an empty bucket compared to a full bucket.
Sometimes after an autocal, it is found that the speed correction with a full bucket is OK, but with an empty
bucket there is a larger error (e.g. 50 to 60 kg).
If with an empty bucket, the weight reading is lower at a slower lift speed than at a fast speed, then reduce the
“Prop A” factor by 2 - 3% until the error is removed. “Prop B” for hydraulics, is normally left at 0.00.
The normal setting for "Prop. Scaling" is "On".

2.3.3 Static Speed Compensation Factors (Stat. Comp. Factors)

From the "Calibration" menu, select "5. Stat.. Comp Factors". There are three screens displaying various
factors that can be edited if required. Press to advance to the second screen.

Figure 18a Figure 18b Figure 18c

The Static Comp Factors section consists of three pages of factors.

Page one (fig 18a) sets the speed compensation On or OFF, and allows access to the Proportional Scaling
factors. Tests so far have indicated that there is no advantage to be gained from using the ‘Curve’ function
when compensating for lift speed changes in Static weighing, so the recommended compensation system is
the less complicated ‘Line 2’ setting.
Page two (fig. 18b) allows access to the Fast and Slow lift speed limits, and the speed compensation graph
gradient factors (‘Line A’ / ‘Line B’).
NOTE: ‘Line A’ is the factor that should be edited to change the degree of Static Lift Speed compensation where editing
is required. If a fast lift gives a lower weight reading than the slow lift, then the figure should be decreased, and
always –ve e.g. changing –11.0 to –10.0.
Page 3 (fig. 18c) displays the Static Last Bucket live reading compensation values. These factors are display
only and cannot be edited.

"Off / On / Auto" (third screen page)

Some machines using the live static mode may operate more accurately if "Static Comp" is set to "Auto". Set
"Static Comp" to either "On" or "Auto", whichever suits the particular machine.
“Off” No compensation
“On” Uses the calibrated pressure drop compensation curve calculated from the autocal.
“Auto” Produces a live reading, but the reading will only change if there is a change of 1% or more in the
calculated weight.

A / B Zero Freq.
Zero signal from the sensors.

12

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 2 - LM800/ 8000 COMMON CALIBRATION

"Max Freq A / B"

Variable compensation is required depending on the load. The Max Frequency figures log the signals at Max
load. This is set up from the Static Comp. routine in the AutoCal.
In order for the instrument to know when it is lifting a fully loaded bucket (to apply the correct compensation),
the maximum signal from each load sensor is saved here.
"Comp Reset"
If the frequency changes by a set amount on sensor A over the sample time, the compensation resets itself to
the beginning of the routine. This is normally due to a pressure surge after the bucket is crowded back.
The default is 20 Hz (LM 800/8000) & 0 Hz (LM 9000), with "0" being "Off", Max figure 100 Hz.

2.3.4 Surge Setup (optional)

This enables the instrument to detect a pressure surge due to machine
bounce or acceleration, which may cause an inaccurate weight
calculation. If the pressure surge exceeds an upper or lower limit, a
warning "TOO MUCH BOUNCE" is displayed on the MAIN operating
screen and weighing is inhibited.
For the LM 800i/8000i, this is normally switched off. It should only be
used if necessary. Start with the default settings.

"Upper Limit" / "Lower Limit" Figure 19

The "Lower Limit" figure (Hz) is used when the bucket weight is below the "Threshold Weight". The "Upper Limit"
is used when the bucket weight is above the "Threshold Weight".
Raising the settings produces a less sensitive Surge Inhibit Alarm
Pre-set values are defined by the certification option selected (section 3.3.1) from the "Sensor Setup" menu.
Once the machine is used, the upper/lower limits can be adjusted if necessary.

"Threshold Weight"
The threshold weight = 50e. E.g. if the Scale Interval 'e' is 20kg, then the threshold weight is 1 tonne.

2.3.5 Angle Factors (Optional Angle Sensor)

Weighing is inhibited when the system is used at angles exceeding those
set on this screen (fig. 20). An alarm will sound and the angle error will
be displayed on the MAIN operating screen.
indicates the angle at which weighing will be inhibited.
The other compensation factors are calculated from the angle
compensation routine in Auto Cal.
NOTE: If re-calibration of the angle factors is required, make sure that all the
factors for Up/Down/Right/Left are manually set to zero before carrying Figure 20a
out an AutoCal.

Figure 20b
13

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 2 - LM800/ 8000 COMMON CALIBRATION

2.4 'NUDGE' Calibration

You can nudge the calibration figures up to 10%. If the error is more than
10%, the instrument will prompt you to re-calibrate ("Cal Weight" in the
Auto Cal menu).
This function is switched on or off from the 'Sensor Setup' screen in the
SETUP menu “1. Calibration”. By default, it is switched on.

When to nudge the calibration

After performing the initial weight calibration and loading a few trucks,
you may find that the load readings from the instrument are consistently Figure 22
different from weighbridge (weighscale) readings. This situation can also
occur after maintenance or repair to the loading shovel e.g. changing a
bucket.

How to nudge the calibration

1. Load a truck and note the weighbridge total against the instrument total
for that load, e.g.
Scale reading: 24.78 tonnes
Instrument reading 23.96 tonnes

2. Press to select the 'Nudge' screen (fig. 22).

3. Enter the instrument reading ( ) and press ENTER (fig.23).

Figure 23
4. Enter the weighbridge reading ( ) and press ENTER (fig 24).
The percentage difference between the instrument and weighbridge
totals is then displayed. Press the ENTER key to confirm. All dynamic
and static factors are automatically re-calculated and stored in memory.
The screen displays the message 'New Factors Set'.
5. Press the "ESC" key to return to the "SETUP" menu screen, or select the
MAIN weighing screen to exit Calibration mode.

NOTE: To nudge the calibration by a known percentage, enter 1.000 tonne for
both the and figures, then enter the known percentage
figure and press ENTER to confirm. Figure 24

14

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 2 - LM800/ 8000 COMMON CALIBRATION

2.5 Calibrating alternative attachments

2.5.1 Programming an attachment

By default the LM 800i/8000i is programmed to recognise only one
attachment. The Auto Cal routine will therefore calibrate for attachment
'A'. You can programme the instrument for up to 8 attachments as
follows: -
1. From the "SETUP" menu, select "1. Calibration" (PIN entry required).
2. Press the key (fig. 25) to select the "Attachment" screen (fig. 26).
3. Select from the list 'B' to 'H' using the arrow keys and then press the
key to switch on the attachment. Only those that are have a tick against
them will appear to the operator via the key on the SETUP menu.
Figure 25
4. If required, programme an attachment description (up to 20
alphanumeric characters). Simply position the flashing cursor under the
attachment letter using the right arrow key; enter the description using
the alphanumeric keypad.
5. Press "ESC" twice to get back to the "SETUP" screen.

2.5.2 Select an attachment for calibration

1. From the "SETUP" menu (fig.27), press the key to select the
"Attachment" screen.
2. Simply select the appropriate one using the up / down arrow key, and
then press "ESC". The instrument is now ready to be calibrated for that
attachment.
NOTE: The current attachment is always displayed at the top of every screen.

Figure 26

2.5.3 Calibrating an alternative attachment

Select the attachment from the list,
In the Auto Cal, carry out the Zero function only to set the "Zero Tracking
Device". (Picks up large Zero change during use).
Select the attachment from the list, and then use the NUDGE function to
adjust the calibration. (No need to carry out Diff/Speed comp etc. in the
AutoCal)
REMEMBER! You must re-calibrate using the NUDGE function, each time you
change an attachment.
NOTE: If an attachment is subsequently repaired or modified in any way that Figure 27
affects its weight or centre of gravity (e.g. new bucket cutting edge, teeth
etc), then it should always be re-calibrated

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 3 – GENERAL SYSTEM SETTINGS

3 General System Settings

3.1 Output Port Setup
NOTE: Requires the Technician PIN number (default = 1234)
There are two 9-way ports on the back of the instrument.
Port 1 is the upper port.
Port 2 is the lower port.
From the SETUP menu, press,

3. System Settings

1. Output Port Options (Enter PIN)

NOTE: Port 1 and port 2 have an additional configuration for "Screen" output.
This option is not applicable in normal use.

Figure 29

The top port is factory set for connecting an RDS ICP printer, without further configuration being
necessary. If another printer is used (or you want to select an option other than a printer), you can
configure the settings from the ‘SETUP’ menu.

Port Output Mode Port function

‘Text’ Printer
’Data’ Direct cable link to PC
‘Card’ Top Port :- External Data Card Module
Bottom Port:- No external function – enables the internal SD Data Card Module
’Radio’ Telemetry via radio
’GSM’ Telemetry via mobile phone
‘Screen’ (For RDS use only)

3.1.1 Set Output Mode

ASCII Text Output for Printers
Set the output mode to "Text". The data is output as ASCII text formatted to suit the RDS ICP 200 In-Cab
Printer.
The default settings (fig. 29) are for the RDS ICP 200 In-Cab Printer.
Print ID Off / On
Baud rate: 110 / 150 / 300 / 600 / 1200 / 2400 / 4800 / 9600 / 19,200 / 31,250 or 38,400.
Data Bits: 7/8
Stop Bits: 1/2
Parity: None / Odd / Even
Handshake: RTS / XON
Bucket List Off/On
NOTE 2: “Print ID” switches the “Instrument ID” function (ref. the Operation manual section 5.4) on or off. When
switched off the “Instrument ID” text (up to two lines each of twenty characters) will not appear on the printout.
NOTE 3: If you are using an existing printer from another manufacturer, it may operate with a different protocol. If it does
not work with the default settings, please refer to the printer instructions.
NOTE 4: “Bucket List” provides an itemised list of all bucket lifts on a ticket (only possible in “Customer” mode).

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 3 – GENERAL SYSTEM SETTINGS

Comma-delimited Output
Set the output mode to "Data". The data is output as a comma-delimited string, e.g. in a format compatible for
import into a database program via a PC / PDA (Palm/Psion etc).

Input/Output to the RDS Data Card Module

Set the output to "Card". The instrument writes/reads files in .CSV format to/from the data card.

Input/Output via Radio Modem

Set the output mode to "Radio" for telemetry via a radio modem.
The range of a radio telemetry system generally limits use to a single site.

Input/Output via GSM Modem

Set the output mode to "GSM" for telemetry via a GSM device.
Data can then be transmitted between any other site, since data is transmitted via the cellular telephone
network.
NOTE: As well as configuring the appropriate output port for telemetry operation, the telemetry option must be
switched on from the "System Settings" menu (section 4).
Refer to the manual supplied with the telemetry kit for full information on telemetry operation.

3.2 Weighing Units

3. System Settings

4. Weighing Units

Figure 30
Units
Choose units of either kg, lbs., UK tons, US tons, Metric tonnes or cubic metres. If you select volume (m3),
then you set density from the MAIN operating screen (see Operating manual).

Resolution
NOTE 1: The weight total is rounded up or down, and it is this rounded off figure that is added to a memory total.
For lbs. or kg units you can set the resolution, i.e. to the nearest 1, 5, 20, 25, 50, or 100 lbs. or kgs.
NOTE 2: When a LM9000 is used in "non-approved" (LM8000) mode, the units are not displayed on screen or on a
printout.

Maximum Weight
flashes on-screen with a 3-second continuous beep when the maximum weight limit is exceeded.

Overload Log
Switch “On” if you want the instrument to log any weight entered above the target weight.. The accumulated
overload weight is displayed on the GRAND TOTAL page (ref. section 4 – Operation Manual).

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 3 – GENERAL SYSTEM SETTINGS

3.3 Bleep Setup

3. System Settings

6. Bleep Setup

Figure 31
3.4 Change PIN Numbers
NOTE: Requires the Factory PIN number for access (default = 4084)

3. System Settings

*. More

2. PIN Numbers

You can set new PIN numbers as required.

You can then choose to set either the "Technician Pin" (default = 1234) or the "Factory Pin" (default = 4084).

3.5 Reset Factors

NOTE: Requires the Factory PIN number (default = 4084)

3. System Settings

*. More

4. Reset Factors

Follow the screen prompts to reset the instrument to the factory default settings.
NOTE: All customised factors including customer and stores data will be lost. It is recommended that you keep
a record of the existing calibration data.

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 3 – GENERAL SYSTEM SETTINGS

3.6 Store / Restore / Print Cal Data

NOTE: Requires the Factory PIN number (default = 4084)
The calibration factors are manually saved to memory store A. This data is NOT overwritten each time the
instrument is switched off, but it WILL be cleared after a Total Software Reset ("RESET FACTORS"). If for
example, any calibration data is unwittingly changed without keeping a record of previous settings or data is
corrupted, you can restore the calibration data from either of these stores at any time.
NOTE: Should the instrument head unit fail, the module can be placed into a new head unit, keeping all relevant
calibration data that is stored using this function. Once the module is re-installed, select "Restore from A". This
will re-install all the original factors.
To store or restore Cal Data, press: -

3. System Settings

*. More

*. More

1. Factor Stores
To print out the Cal data press: -

Figure 32
3. System Settings

*. More

*. More

2. Print Cal Data

3.7 Telemetry Option - Enable/Disable

As well as configuring the appropriate output port for telemetry operation (section 4.1), the telemetry option
must be enabled.
Set to "On" for one way data transmission i.e. from the mobile unit to the base station.
Set to "Auto" for two way data transmission, i.e. for sending job information to the mobile unit.
Setting to "Off" disables the telemetry option.
NOTE: Refer to the manual supplied with the telemetry kit for full information on telemetry operation.

3.8 ‘Module’

3. System Settings

*. More

*. More

5. Module

Enables access to the “Secondary Software Module” (the ‘M’ soft key is displayed on the setup menu screen).

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 4 – THE SETUP MENU

4. The SETUP menu

Select Loading attachment

Nudge weight calibration
Menu selection

1st Level 2nd Level Parameter Settings - reference

1. Calibration 1. Autocal 1. Dyn. Diff. Setup 2.2.1

2. Static Empty Lift 2.2.2

3. Dyn Speed Comp. 2.2.3

4. Static Full Lift 2.2.4
5. Static Comp 2.2.5
6. Zero 2.2.6

7. Cal Weight 2.2.7

8. Angle Calibration 2.2.8

2. Static Factors 2.3.1

3. Dynamic Factors 2.3.1
4. Dyn. Comp Factors 2.3.2
5. Stat Comp Factors 2.3.3
6. Surge Factors 2.3.4
7. Angle Factors 2.3.5
8. Sensor Setup 2.1

2. Stores Data Product

Customer
Reference 1 Operation Manual
Reference 2
Reference 3
Reset to Undef

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 4 – THE SETUP MENU

1st Level 2nd Level Parameter Settings - reference

3. System Settings 1. Output Port Setup 3.1
2. Display Settings Brightness / Contrast Operation Manual
3. Time Set Operation Manual
4. Weighing Units 3.2
5. Tare Operation Manual
6. Bleep Setup 3.3
* More

1. Instrument ID Operation Manual

2. PIN Numbers 3.4
3. Language Operation Manual
4. Reset Factors 3.5
* More

1. Factor Stores 3.6

2. Print Cal Data 3.6
3. Print Store Names Operation Manual
4. Telemetry 3.7
5. Module (SSM) On / Off 3.8

4. Diagnostics

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 NOTES

Issue 1.00: 3/12/07 Original Issue – derived from UK273-6.DOC

Issue 1.1 12/12/07 Various corrections
Issue 1.11 13/12/07 Corrections ref. p.19, 20
Issue 1.12 17/12/07 Minor corrections
Issue 1.13 17/12/07 section 2.3.3 – correction
Issue 1.2 18/12/07 section 2.2.4 – correction ref. “Lift FULL…”
Issue 1.3 23/1/08 Correction ref. section 3.1
Issue 1.31 24/10/08 Minor re-formatting

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