Intercomp CW250RFX Instruction Manual
CW250
Users Manual
Intercomp Co.
3839 County Road 116
Medina, MN 55340, U.S.A.
763-476-2531
800-328-3336
Fax: 763-476-2613
www.intercompcompany.com
Manual #: 700014 rev J
CW250, Users
Rev J, October, 2010
Table of Contents
INTRODUCTION .......................................................................................................................................................3
SPECIFICATIONS.........................................................................................................................................................4
Controls ...............................................................................................................................................................4
Electrical..............................................................................................................................................................4
Performance.........................................................................................................................................................4
Environmental......................................................................................................................................................4
Physical................................................................................................................................................................4
OPERATIONS.............................................................................................................................................................5
DISPLAY DESCRIPTION ..............................................................................................................................................5
CONTROLS .................................................................................................................................................................6
ON / OFF .............................................................................................................................................................6
PRINT / ACCUMULATE .....................................................................................................................................6
LOCAL/TOTAL ....................................................................................................................................................6
ZERO ...................................................................................................................................................................6
TOTALIZING SETUP................................................................................................................................................8
SERIAL OUTPUT SETUP.......................................................................................................................................10
ON-DEMAND ...........................................................................................................................................................10
CONTINUOUS ...........................................................................................................................................................10
Data Format ......................................................................................................................................................11
ACCUMULATING PRINT............................................................................................................................................11
USING ACCUMULATED TOTAL.........................................................................................................................12
ACCUMULATING PRINT AXLE ..................................................................................................................................12
ACCUMULATING PRINT STANDARD .........................................................................................................................13
ACCUMULATING PROCEDURE:.................................................................................................................................14
MODE MENU ...........................................................................................................................................................16
MODE MENU ...........................................................................................................................................................16
SETTING THE MODE MENU PARAMETERS ................................................................................................................17
CALIBRATION ........................................................................................................................................................20
CALIBRATION ENABLE JUMPER ...............................................................................................................................20
CALIBRATION MENU ................................................................................................................................................21
SETTING THE CALIBRATION PARAMETERS ...............................................................................................................22
Multiple Graduation Break Points.....................................................................................................................22
WEIGHT CALIBRATION ............................................................................................................................................24
ERROR MESSAGES................................................................................................................................................26
DIAGNOSTICS .........................................................................................................................................................27
CONNECTOR ...........................................................................................................................................................28
HOW TO REACH INTERCOMP...........................................................................................................................29
"This document is the property of Intercomp Co. It contains material and
information that is confidential and protected under federal and/or state trade
secret, unfair competition, and copyright law. Any reproduction, use or
disclosure without written permission from Intercomp Co. is prohibited".
Page 2 of 29
CW250, Users
Rev J, October, 2010
Introduction
This operations manual describes the Intercomp Model CW250 specifications, detailed
operating procedures, and calibration.
This manual is separated into several sections, each containing information on a
different aspect of the platform. The specifications outline the design parameters for the
scale. The detailed operation section outlines the correct use of the scale for most
applications. The calibration section explains how to set the platform's adjustments.
Features
lb or kg programmable readout.
Ability to display total weight.
Accumulating total function.
Auto zero tracking automatically corrects zero-weight display shifts.
5½ digit, 1 inch LCD readout, with automatic back lighting.
5-15 VDC and 120 VAC 60 Hz power sources standard.
RFI/EMI protection.
Low battery detection with automatic shutoff to protect batteries.
Built-in self-diagnostics to check: Load cells, Memory, Display, AD converter, and
Power supply.
Weigh pads manufactured from high strength aluminum alloys.
OPTIONS
220V / 50Hz charging transformer
24” x 24” ramp (100181)
cast aluminum
15” x 15” ramp (100330)
cast aluminum
Battery operated tape printer (100090)
Transport wheels (100183)
2 per platform.
Remote indicator (100184)
Indicator with pedestal.
Remote indicator (100184)
Indicator for use on floor or wall.
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CW250, Users
Rev J, October, 2010
Specifications
Controls
General
Display
Indicators:
On/Off, Print/Accumulate, Local/Total, Zero
5½ digit, 1 inch liquid crystal display (LCD), with automatic LED
back lighting.
lb, kg, TOTAL, ERROR, ‘-‘ (minus) sign, and a 4 segment
battery indicator.
Electrical
Power source required
Charging Voltage
Batteries
Charging Current
Charging Time
Battery endurance
A/D Converter
Auto-Zero
5 - 15 VDC, 120 VAC, optional 240 VAC.
10 - 15 VDC.
4-AA size NiMH, or alkaline cells.
50 mA.
2 days for a full charge.
Radio off: 300 hours with alkaline or NiMH cells.
Radio on: 250 hours with alkaline or NiMH cells.
NOTE: For special setups that require a scale
wireless “host”, that scale’s battery life is 40 hours.
24 bit conversions.
Satisfies all HB-44 requirements.
Performance
Speed
Accuracy
Calibration
interval
1 second to typical reading (static).
± 0.1% of reading or ± display graduation, whichever is greater.
Twelve months recommended.
Environmental
Humidity
Temperature
EMI/RFI
10 to 95% Non-Condensing.
Operating: -30 C to +60 C. / -22 F to +140 F.
Storage: -40 C to +70 C. / -40 F to +158 F.
Meets Mil Spec 461
Physical
Dimensions (15”):
Weight (15”):
Dimensions (24”):
Weight (24”):
Overload capacity:
Overall: 15 x 22 x 4 in. / 380 x 557 x 100 mm
Platform: 15 x 15 x 4 in. / 380 x 380 x 100 mm
40.5 lb / 18.4 kg
Platform: 24 x 24 x 4 in. / 610 x 610 x 100 mm
85 lb / 39 kg
150%
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CW250, Users
Rev J, October, 2010
Operations
The control panel has a liquid crystal display (LCD) screen and four control switches.
CW250 scale
Display Description
The display is a Liquid Crystal Display unit, providing one line of 5 1/2 digits. The
screen shows the weights read from the pad. The TOTAL icon indicates measurement
mode as in the table below the CW250 display. Information displayed includes
indicators for both “lb” and “kg”, a segment bar to show battery charge level, error
conditions and set-point indicators when set-point thresholds are reached. The display
contains an automatic backlight for use in low-light conditions.
Diagram: CW250 display
Mode status
TOTAL not lit
TOTAL lit
TOTAL flashing
Setting
Local
Total
Accumulated Total
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CW250, Users
Rev J, October, 2010
Controls
ON / OFF
Press this key to apply power to the weighing system electronics. When power is
first applied, the weighing system rapidly performs self-tests of the pad and the
internal electronics. When the tests have completed successfully, the system
begins weighing. If a problem is detected, the screen displays an error message.
If the CW250 is powered up, press this button to turn the scale off. The CW250
retains the setup information, and calibration in a special memory device (nonvolatile memory) that is not affected by power loss or battery condition.
PRINT / ACCUMULATE
Press this button to print and/or accumulate weights, depending on the current
print mode. See section titled “Serial Output Setup”. When using the
accumulated total function: press the PRINT /ACCUMULATE button to add the
total to the accumulated total. Also, see section titled “Using Accumulated Total”.
New accumulated total = total weight (all scales in system) + old accumulated total
LOCAL/TOTAL
Press the LOCAL/TOTAL button to toggle the scale between local weight and
total weight. The local weight is the weight on that scale only. The total weight is
the weight on all of the scales in your system. The display will be in local mode
unless the “TOTAL” icon is on. (shown on page 5).
If the serial output is set to mode 2 or 3 and a successful accumulation has
occurred, press the LOCAL/TOTAL button to toggle the display through the
current local weight, current total weight, accumulated total, and the number of
accumulations that make up the total.
.
2500
Current local
weight on this
scale
5000
Current total
weight of all
scales
10000
Total weight of
accumulations
this session
AC
.2
Total number of
accumulations
this session
Note: If the system is not setup correctly, the “error” icon and message “t0t” will
be displayed when trying to view the total weight. See section titled “Totalizing
Setup”.
ZERO
Sets the weighing system to read zero pounds or kilograms. If pressed while a
pad holds weight, that weight becomes the zero condition for the pad. This can
be useful to cancel the weight of any weighing fixtures, such as tail cones or
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CW250, Users
Rev J, October, 2010
wheel chocks. When the weight is removed, a negative weight displays until the
system is re-zeroed. This switch is used any time the scale shows a non-zero
value with no weight on the pads. Please note that this system contains a
feature called Auto Zero Tracking (AZT), which corrects for slight zero changes
during normal operation. An example of a zero change could be a buildup of dirt
on the pads.
Another function of the zero key is to clear the accumulated total. Press and hold
the ZERO key until the display reads “CLr.t“ and release the ZERO key. This
will reset the accumulated total and the accumulation number. All other scales
you have connected will also be zeroed through the interconnect cables. This
allows you to zero your entire system with one key press.
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CW250, Users
Rev J, October, 2010
Totalizing Setup
The CW250 scales must be setup correctly in order to communicate. If the system is
not setup correctly, the “error icon” and message “t0t “will be displayed when trying to
view the total weight.
1. To enter into totalizing setup: Simultaneously press the LOCAL/TOTAL and
ZERO buttons.
2. Message “SCid” will be displayed. Press PRINT/ACCUMULATE button. A
number will be displayed with 3 dashes following it. This is the scale number.
Use the LOCAL/TOTAL button to increment and the ZERO button decrement the
number. When the desired number is displayed, press the
PRINT/ACCUMULATE.
scale #
01---
3. Message “SCLS” will be displayed. Press the PRINT/ACCUMULATE button. The
display will show three dashes and then a number. This number is the total
number of scales in the system. Use the LOCAL/TOTAL button to increment and
the ZERO button decrement the number. When the desired number is displayed,
press the PRINT/ACCUMULATE button. The maximum number of scales is 32.
---02
total # of scales
(only displayed on scale #1)
4. If the scale# is ‘1’, the display will ask if the scale is the “HOSt”. Press the
PRINT/ACCUMULATE button. Use the LOCAL/TOTAL or the ZERO button to
toggle the display “Yes” or “no”. A ‘Host’ controls the scale network, and this
setting should be set to “yes” if the scale network consists of scales only. If your
system uses an external device such as a PDA or PC to view the weights, this
setting should be set to “no” since the external host controls the network. Press
the PRINT/ACCUMULATE button to save the setting.
Example:
Setup for two scales: On the first scale, enter ‘01’ for the scale number, enter ’02’
for the total number of scales, and enter ‘yes’ for the ‘Host’ setting. On the other
scale, enter ‘02’ for the scale number and ’02’ for the total number of scales.
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CW250, Users
Rev J, October, 2010
Note: The scale will not accumulate when the weight is negative, zero, or if the
weight is in motion. These Protections are added to ensure that only valid readings
are accumulated into the total. An error message “Ac.Err” will be displayed if any of
those conditions are present. After a successful accumulation the scale must return
to zero before you accumulate the next weight. If you attempt to accumulate the
next weight before allowing the scale to return to zero, an error message “Ac.Err”
will be displayed. The scale’s print setup must be set to “accumulating print” in order
for the totalizing function to work. See the next section titled “Serial Output Setup” to
set the scale to “accumulated print”.
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CW250, Users
Rev J, October, 2010
Serial Output Setup
There are four different serial output modes for the CW250, “on-demand”, “continuous”,
“accumulating print” wheel axle format, and “accumulating print” standard format. See
below for more information on these modes.
To setup the serial output mode: Press the PRINT/ACCUMULATE and ZERO
buttons simultaneously until the display shows “b.LitE”, Press the PRINT/
ACCUMULATE button to scroll through the menu (12 times) until the display shows
“Prt t”. Press the PRINT/ACCUMULATE button once to display setting number. Set
print mode to the number of the print mode wanted by using the LOCAL/TOTAL button
to increment and the ZERO button decrement the number. .
Communication Mode
On-Demand
Continuous
Accumulating Print Axle
Accumulating Print Standard
Setting
0
1
2
3
Notes: For best results, only set one scale to ‘1, ‘2 or ‘3. This should also be
the scale you are printing from. ‘0’ is the default setting.
Press the PRINT/ACCUMULATE button. Now the display will display “PbAUd”. Press
the PRINT/ACCUMULATE button to change the baud rate set, press the LOCAL/
TOTAL or the ZERO button to cycle through the baud rates available. The baud rates
available are: 1200, 2400, 4800, 9600, 19200, 38400, 57600, and115200. When the
desired baud rate is displayed, press the PRINT/ACCUMULATE button. The baud rate
only needs to be set on the scale doing the printing. The settings are saved once
PRINT/ACCUMLATE is pressed to advance the menu, and the scale can then be
turned off to exit the Mode Menu.
On-Demand
The weight is transmitted every time the PRINT/ACCUMULATE key is pressed.
Press PRINT/ACCUMULATE to print either the local or total weight (depending
on the local/total setting of the scale). This is the default print mode.
Continuous
The CW250 automatically and continuously outputs the weight at a rate of about
once per second.
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CW250, Users
Rev J, October, 2010
Data Format
When the serial output is set to either on-demand or continuous mode, the
transmitted data is in the format shown below:
AAAAAAA BB<cr><lf>
Item
AAAAAAA
BB
<cr>
<lf>
Meaning
weight
units “lb” or “kg”
carriage return
linefeed
ASCII Hex
ASCII Decimal
0D
0A
13
10
The AAAAAAA field will vary in length depending on the length of the
number and could contain a decimal point and/or a minus sign. The
weight will either be local weight or total weight, depending on which mode
you’re in.
Accumulating Print
See section titled “Using Accumulated Total” for both the Axle and the standard
formats.
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CW250, Users
Rev J, October, 2010
Using Accumulated Total
The CW250 platforms can be used separately, in pairs, or in groups to measure a
support load or the total weight in one measuring procedure.
To use the Accumulated Total feature, the scales need to be numbered correctly and
the scale you intend to print from or display the accumulated total must have it’s print
mode set to one of two ‘Accumulating Print’ modes. See the “Totalizing Setup” and
“Serial Output Setup” sections for details.
Accumulating Print Axle
Press the PRINT/ACCUMULATE button to add the current total weight to the
accumulated total weight. At the same time, a print ticket will be generated
(assuming you have a printer in the system). The print ticket format is in respect
to a vehicle’s individual wheels and axles or a standard weight accumulation
mode.
For example wheel and axle, think of “WHL 1” as scale 1 and “AXL 1” as the total
weight of scale 1 and scale 2. The following print ticket example is a 4 scale
system:
PRINT / ACCUMULATE
button has been pressed
PRINT / ACCUMULATE
button has been pressed
WHL 1: 7460 WHL 2: 7400
AXL 1: 14860
WHL 3: 10110 WHL 4: 10070
AXL 2: 20180
SUBTOTAL GRP 1: 35040
ACCUM TOTAL: 35040
WHL 1: 10110 WHL 2: 10070
AXL 1: 20180
WHL 3: 9800 WHL 4: 9500
AXL 2: 19300
SUBTOTAL GRP 2: 39480
ACCUM TOTAL: 74520
Once a successful accumulation has occurred, press the LOCAL/TOTAL button
to toggle the display through the current local weight, current total weight,
accumulated total, and the number of accumulations that make up the total.
.
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CW250, Users
Rev J, October, 2010
10110
Current local
weight on this
scale
39480
Current total
weight on all
scales
74520
Total weight of
accumulations
this session
AC.
2
Total number of
accumulations
this session
Note: The scale will not accumulate and will display the error message “Ac.Err”
if the current weight is negative, zero, or if the weight is in motion. These
Protections are added to ensure that only valid readings are accumulated into the
total. Also, after a successful accumulation, ALL scales in the system must
return to zero before you accumulate the next weight. If you attempt to
accumulate the next weight before allowing the scale(s) to return to zero, the
error message “Ac.Err” will be displayed.
The accumulated total weight can be viewed only on the scale you are
accumulating from. After the PRINT/ACCUMULATE button is first pushed; the
display will show “Ac. X” as the system will accumulate the next reading and send
it to print. (X will show the number of accumulations this session) Once a
successful accumulation has occurred, pressing the LOCAL/TOTAL button will
cycle the display to show number of accumulations, current local weight, current
total weight on all scales, and the accumulated total. When the local weight,
current total weight, or accumulated total is displayed, the total icon will be lit up,
flashing, or off. (as shown on page 5).
Accumulating Print Standard
A standard accumulation shows total weight of multiple items weighed on 1 or
more scales. The following print ticket example is a 1 scale system after 3 items
are weighed: (950lb, 1000lb, and 1500lb)
950 lb
ACCUM TOTAL:
PRINT/ACCUMULATE
has been pressed
950 lb
1000 lb
ACCUM TOTAL: 1950 lb
1500 lb
ACCUM TOTAL: 3450 lb
Once a successful accumulation has occurred, press the LOCAL/TOTAL button
to toggle the display through the current local weight, current total weight,
accumulated total, and the number of accumulations that make up the total.
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CW250, Users
Rev J, October, 2010
1500
Current local
weight on this
scale
1500
Current total
weight on all
scales
3450
Total weight of
accumulations
this session
AC.
3
Total number of
accumulations
this session
Note: The scale will not accumulate and will display the error message “Ac.Err”
if the current weight is negative, zero, or if the weight is in motion. These
Protections are added to ensure that only valid readings are accumulated into the
total. Also, after a successful accumulation, ALL scales in the system must
return to zero before you accumulate the next weight. If you attempt to
accumulate the next weight before allowing the scale(s) to return to zero, the
error message “Ac.Err” will be displayed.
The accumulated total weight can be viewed only on the scale you are
accumulating from. After the PRINT/ACCUMULATE button is first pushed; the
display will show “Ac. X as the system will accumulate the next reading and send
it to print. (X will show the number of accumulations this session) Once a
successful accumulation has occurred, pressing the LOCAL/TOTAL button will
cycle the display to show number of accumulations, current local weight, current
total weight on all scales, and the accumulated total. When the local weight,
current total weight, or accumulated total is displayed, the total icon will be lit up,
flashing, or off. (as shown on page 5).
Note: In print-mode 3 it can accumulate either in local or total weight, but not
when viewing the accumulated total.
To clear the accumulated total weight, press and hold the ZERO button until the
display shows “CLr.t“.
Accumulating Procedure:
1. With your system setup correctly, decide which scale you will accumulate from.
This can be any scale, but once you choose, you must only accumulate with that
scale until the weighing is complete. This scale needs to be set to your desired
accumulate mode, 2 or 3 (See “Serial Output Setup”). If you are using a printer,
select the scale directly connected to the printer.
2. With the first group of items stable on the scales, press the PRINT/ACCUMULATE
button. If you are using a printer, a print ticket with all weights will now be printed.
The display will return to the setting that the accumulation was taken from. This first
group’s weight will become the accumulated total, which can be seen on the display
by pressing the LOCAL/TOTAL button as described in the previous section with the
TOTAL icon flashing. Another accumulation can not be made in the standard mode
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CW250, Users
Rev J, October, 2010
if the scale is in the Accumulation Print mode. (TOTAL icon flashing). After
accumulation, remove the first group of items from the scale(s).
3. With the next group of items stable on the scale(s), press the
PRINT/ACCUMULATE button. This will add the total weight to the accumulated
total. If you are using a printer, a print ticket with all weights will now be printed.
4. Repeat step 3 as needed. If the accumulated total becomes too large to display,
the “diSP” message and error icon will be displayed.
5. When finished, you may clear the accumulated total weight by pressing and holding
the ZERO button until the display show “CLr.t“. The display will clear the
accumulated total and the number of accumulations.
Note: The scale will not accumulate when the weight is negative, zero, or if the
weight is in motion. A display message “Ac.Err” with error icon will be displayed
if any of those conditions are present. After a successful accumulation the scale
must return to zero before you accumulate the next weight. If you attempt to
accumulate the next weight before allowing the scale to return to zero, a display
message “Ac.Err” with error icon will be displayed.
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CW250, Users
Rev J, October, 2010
Mode Menu
Mode Menu
To access the mode menu simultaneously press the PRINT/ACCUMULATE and ZERO
buttons. The display will show “b.LitE”. If it doesn’t, go to Calibration Enable Jumper
section and verify the scale is in the RUN position.(shorting pins 2 and 3(RUN)
At times it will be necessary to enter up to a five digit number. When this is necessary
the current number will be displayed with the right most digit flashing. The flashing digit
may be incremented by pressing the LOCAL/TOTAL button. To move one digit to the
left, press the ZERO key. When you have finished entering a number press the PRINT/
ACCUMULATE button. The settings are saved once PRINT/ACCUMLATE is pressed to
advance the menu, and the scale can then be turned off.
Step
Function
Note
Default
b.LitE
SEtP1
SEtP2
vEr.
A. rt
A.tHrS
A off
Prt t
Backlight
Auto, on, oFF
Auto
Set Point 1
0 to 199999
199999
Set Point 2
0 to 199999
199999
Firmware Version
View only
XXXXX
Average rate
1 to 120
008
Average Threshold
1 to 10000
200
Auto off
000 = off, 1 to 240
060
Print Mode
Pbaud
Printer baud rate
Units
Proto
i.baud
radio
Rf CH
Rf.pan
Rf.eCp
Measurement units
0 = On-demand, 1 = Continuous,
2 = Accumulating Total Axle,
3 = Accumulating Total Standard
1200, 2400, 4800, 9600, 19200,
or 38400, 57600, 115200
lb or kg
Protocol
StAnd, Lo Pr, C.L00P, or none
Lo Pr
Interface baud rate
9600 or 115200
9600
Radio Enable
Yes or no
no
Radio Channel
01 to 12
1
Radio Network ID
0 to 65534
8000
Radio encryption enable
Yes or no
no
Radio Encryption Key
0 to 65534
00000
Restore Radio Defaults
0 or 3
Rf.def
Page 16 of 29
0
9600
lb
0
CW250, Users
Rev J, October, 2010
Setting the Mode Menu Parameters
1. Simultaneously press the PRINT/ACCUMULATE and ZERO buttons. The display
will show “b.LitE”. Press the PRINT/ACCUMULATE button. The flashing display
shows the current setting. Press the ZERO or the LOCAL/TOTAL buttons to toggle
between Auto, on, and off. With ‘Auto’ selected (default), the backlight will
automatically light up when low level light conditions are detected. When the desired
setting is displayed, press the PRINT/ ACCUMULATE button.
2. The display will show “SEtP1”. Press the PRINT/ACCUMULATE button. The
flashing digit shows the current setting. When the weight displayed is equal to or
greater than the set point, the corresponding icon is displayed on the LCD. During
normal weighing mode, the S1 icon on the display will light when the weight is
greater than or equal to set point 1. Use the LOCAL/TOTAL button the advance the
number and the ZERO button to move the number flashing to the left. When the
display shows the desired number, press the PRINT/ACCUMULATE button.
3. The display will show “SEtP2”. Press the PRINT/ACCUMULATE button. The
flashing digit shows the current setting. During normal weighing mode, the S2 icon
on the display will light when the weight is greater than or equal to set point 2. Use
the LOCAL/TOTAL button the advance the number and the ZERO button to move
the number flashing to the left. When the display shows the desired number, press
the PRINT/ACCUMULATE button.
4. The display will show “vEr”. Press the PRINT/ACCUMULATE button and the display
will show the current version of firmware loaded in the scale. Press the
PRINT/ACCUMULATE button.
5. The display will show “A. rt”. Press the PRINT/ACCUMULATE button. The flashing
digit shows the current setting. This number is how many readings will be averaged
together before the reading is sent to the display. Higher values will result in a more
stable reading, but will take longer to settle to the final value. Note that the scale
updates at 4Hz, so an Average Rate of ‘8’ equates to 2 seconds of averaging. Enter
a ‘1’ to effectively disable averaging. Use the Lb/Kg button the advance the number
and the ZERO button to move the number flashing to the left. When the display
shows the desired number, press the Mode button.
6. The display will show “A.tHrS”. Press the Mode button. The flashing digit shows the
current Average Threshold setting. This setting enables dynamic averaging, which
can improve the settling time of a large Average Rate. If the scale senses a large
weight change, it will temporarily suspend averaging, jump to the new weight, and
resume averaging. Enter a value of 1-10000 to set the threshold (in display
divisions) at which the dynamic averaging triggers. Enter ‘0’ to disable dynamic
averaging. When disabled, the averaging will never be suspended. When the
display shows the desired number, press the PRINT/ACCUMULATE button.
7. The display will show “A. oFF”. Press the PRINT/ACCUMULATE button. The
flashing digit shows the current setting. The number displayed is the minutes that
the scale can remain idle before it automatically shuts down. Setting this number to
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CW250, Users
Rev J, October, 2010
“000” will disable the function, meaning the scale will never shut itself off. Use the
LOCAL/TOTAL button the advance the number and the ZERO button to move the
number flashing to the left. When the display shows the desired number, press the
PRINT/ACCUMULATE button.
8. The display will show “Prt t”. Press the PRINT/ACCUMULATE button. The
flashing digit shows the current setting. The number enables the scales different
print modes. (0 for on-demand, 1 for continuous, 2 for accumulating total axle
format, and 3 for accumulating total standard format) Use the LOCAL/TOTAL button
to increment and the ZERO button to decrement the number. When the display
shows the desired number, press the PRINT/ACCUMULATE button.
9. The display will show “PbAUd”. Press the PRINT/ACCUMULATE button. The
flashing display shows the current setting of the printer baud rate. The baud rates
available are: 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200. Use the
LOCAL/TOTAL button or the ZERO button to toggle through the available rates.
When the display shows the desired number, press the PRINT/ACCUMULATE
button.
10. The display will show “UnitS”. Press the PRINT/ACCUMULATE button. The lb or
the kg icon will flash in the upper left of the display. This will set the scale to
measure pounds (lb) or kilograms (kg). Use the LOCAL/TOTAL button or the ZERO
button to toggle between the settings. When the desired icon is flashing, press the
PRINT/ACCUMULATE button.
11. The display will show “Proto”. Press the PRINT/ACCUMULATE button. The
flashing display shows the current setting. There are 4 protocol settings for the
scale, Standard (“StAnd”), Low Power (“Lo Pr”), Current Loop (“C.L00P”), or “None”.
Standard is the legacy setting for use in wireless and wired scale networks. Low
Power will significantly improve the wireless battery life for all non-‘host’ scales.
(maximum number of scales in this mode is 32) Current Loop is not used in the
CW250. When scales are not part of a totalizing network, battery life will be
improved if “nonE” is chosen. Use the LOCAL/TOTAL button or the ZERO button to
cycle through the settings. When the desired protocol is flashing, press the PRINT/
ACCUMULATE button.
12. The display will show “i.bAud”. Press the PRINT/ACCUMULATE button. The
display will show the current setting flashing. This is the setting of the interface baud
rate. There are two settings available, 9600 and 115200. Use the LOCAL/TOTAL
button or the ZERO button to toggle between the settings. When the desired baud
rate is flashing, press the PRINT/ ACCUMULATE button.
13. The display will show “rAdio”. Press the PRINT/ACCUMULATE button. The display
will show the current setting flashing. This is the radio enable status and is either on
or off. Use the LOCAL/TOTAL button or the ZERO button to toggle between the
settings. When the desired status is flashing, press the PRINT/ ACCUMULATE
button. If you select “no” the scale will skip the rest of the settings and return to
normal weighing.
Page 18 of 29
CW250, Users
Rev J, October, 2010
14. The display will show “rF CH”. Press the PRINT/ACCUMULATE button. The
flashing digit shows the current setting. All scales in a system must be set to the
same radio channel setting in order to communicate with each other. Use the
LOCAL/TOTAL button to increment and the ZERO button to move the number
flashing to the left. When the display shows the desired number, press the
PRINT/ACCUMULATE button.
15. The display will show “rF.PAn”. Press the PRINT/ACCUMULATE button. The
display will show the current setting with the number on the right flashing. All scales
in a system must be set to the same Personal Area Network ID setting in order to
communicate with each other. Use the LOCAL/TOTAL button to increment and the
ZERO button to move the number flashing to the left. When the display shows the
desired number, press the PRINT/ACCUMULATE button.
16. The display will show “rF.ECP”. Press the PRINT/ACCUMULATE button. The
display will show the current setting flashing. This is the encryption enable status
and is either on or off. Use the LOCAL/TOTAL button or the ZERO button to toggle
between the settings. When the desired status is flashing, press the PRINT/
ACCUMULATE button. If “Yes” was selected go to the next step. If “no” was
selected got to step 17.
17. The display will show “00000” with the number on the right flashing. Use the
LOCAL/TOTAL button to increment and the ZERO button to move the number
flashing to the left. Enter any number from 0 to 65534. This is the encryption key.
For security purposes, this setting is not accessible to view and will always show as
“00000”. If you don’t want to change the key enter “00000” to leave it unchanged.
All scales in a system must be set to the same encryption key setting in order to
communicate with each other. When the desired encryption key is displayed, press
the PRINT/ ACCUMULATE button.
18. The display will show “rF.dEF”. Press the PRINT/ACCUMULATE button. The
display will show “0” with the number flashing. Use the LOCAL/TOTAL button to
increment and the ZERO button to decrement the number. Setting the number to 3
will restore the default radio settings. All other numbers will have no affect on the
radio set-up. When the desired number is flashing, press the PRINT/
ACCUMULATE button. The scale will return to normal weighing.
If the scale does not have the radio option installed, the “rF CH”, “rF Pan”, “rF ECP” and
the Encryption key will be view only.
Page 19 of 29
CW250, Users
Rev J, October, 2010
Calibration
Notice: The CW250 scale is calibrated by the factory prior to shipment.
Calibration Enable Jumper
To access the calibration mode the shorting strap labeled “RUN/CAL”, located on the
right-middle of the circuit board (Intercomp, A/D 20 BIT rev E), it must be moved from
shorting pins 2 and 3(RUN); to shorting pins 1 and 2(CAL). To access the shorting
strap, remove the 10 screws on the outside edges of the display assembly. Carefully lift
the display assembly up and place the assembly, display side down, on top of the
weighing platform.
Following calibration, replace the strap to shorting pins 2 and 3 (RUN); replace the
assembly and reattach the assembly with the screws. This will ensure that the
calibration information of the scale is protected from being changed.
Note: Care must be taken to ensure the wire harness is seated properly to
prevent it from being pinched between the display assembly and the scale
casing.
Page 20 of 29
CW250, Users
Rev J, October, 2010
Calibration menu
To initiate calibration simultaneously press the PRINT/ACCUMULATE and ZERO
buttons. The display will show “StEP”, if it does not, the calibration strap is incorrectly
placed to allow calibration. Return to ‘Calibration Enable Jumper’ section to verify
correct setting. Press the PRINT/ACCUMULATE button to access the parameter
setting.
At times it will be necessary to enter up to a five digit number. When this is necessary
the current number will be displayed with the right most digit flashing. The flashing digit
may be incremented by pressing the LOCAL/TOTAL button. To move one digit to the
left, press the ZERO key. When you have finished entering a number press the PRINT/
ACCUMULATE button. The settings are saved once PRINT/ACCUMLATE is pressed to
advance the menu, and the scale can then be turned off.
Default
Step
Function
Note
StEP
skip
Unit enable
000= no skip
001= skip to Weight Calibration
Yes or no
grad break point 1
Enter weight
00000
grad break point 2
Enter weight
00000
grad break point 3
Enter weight
00000
ADC rate
0 or 1
AZT (auto zero tracking)
1 d, 3 d, .5 d, oFF, or.6 d
Zero range
0= off, 1= 1%, 2= 2%, 3= 5%,
U. EnA
bP 1
bP 2
bP 3
AdC.rt
A2t
2Er0.r
grAd
000
YES
1
1 d
0
4 = 1%
d
SAVE
0.02, 0.05, 0.1, 0.2, 0.5, 1, 2, 5,
10, 20, 50, or 100
Displays for 1 sec and advances
CAP
LL-01
capacity
Enter scale capacity
20000
HH-01
First weight
Enter first weight
LL-01
First weight
Load first weight
HH-02
Second weight
Enter second weight
LL-02
Second weight
Load second weight
HH-03
LL-03
HH-04
LL-04
Third weight
Enter third weight
Third weight
Load third weight
Fourth weight
Enter fourth weight
Fourth weight
Load fourth weight
10 points available to enter
3 minimum recommended
graduation size
No weight applied
Page 21 of 29
1
CW250, Users
Rev J, October, 2010
Setting the Calibration Parameters
1. At any point in the following steps, data will be retained by the scale at the step
completed if the power is cycled off. To initiate calibration simultaneously press the
PRINT/ACCUMULATE and the ZERO buttons. The scale shows “StEP”. Press the
PRINT/ACCUMULATE button. The scale shows “000” with the far right number
flashing. To go through all of the calibration parameters, press PRINT/
ACCUMULATE with the display showing “000”. To skip the first 8 calibration
parameters and proceed to step 10 enter “001” or “002”. See Diagnostics section for
additional codes available. Use the LOCAL/TOTAL button to increment and the
ZERO button to decrement the number. Press the PRINT/ ACCUMULATE button
when the desired number is displayed.
2. The display shows “U. EnA” if proceeding through all parameters. Press the PRINT/
ACCUMULATE button. The display will read “YES”. Pressing LOCAL/TOTAL or the
ZERO button will toggle the display to “no”. With the display showing “YES”, press
the PRINT/ACCUMULATE button.
3. The display now shows “bP 1”. Press the PRINT/ACCUMULATE button. The
display will read the current setting with the far right number flashing. Use the
LOCAL/TOTAL button to advance the number and the ZERO button to move the
number flashing to the left. When the desired graduation break point is displayed
press the PRINT/ ACCUMULATE button.
4. The display shows “bP 2”. Press the PRINT/ACCUMULATE button. Repeat the
process in step 3 for graduation break point 2. When the desired graduation break
point is displayed press the PRINT/ACCUMULATE button.
5. The display shows “bP 3”. Press the PRINT/ACCUMULATE button. Repeat the
process in step 3 for graduation break point 3. When the desired graduation break
point is displayed press the PRINT/ACCUMULATE button.
Multiple Graduation Break Points
The CW250 has the ability to have multiple graduation values set. Following is
an example of setting graduation break points. Example:
Grad = Initial graduation equals by 0.1 lb
Cap = 10000 (Capacity equals 10,000 lb)
bP 1 = 1000
bP 2 = 2000
bP 3 = 5000
Page 22 of 29
CW250, Users
Rev J, October, 2010
The scale would then display the following:
up to 1000 lb
by 0.1 lb; up to 453.55 kg
1000+ to 2000 lb by 0.2 lb; 453.55+ to 907.1 kg
2000+ to 5000 lb by 0.5 lb; 907.1+ to 2267.8 kg
5000+ lb
by 1.0 lb; 2267.8+ kg
by 0.05 kg
by 0.1 kg
by 0.2 kg
by 0.5 kg
To disable the breakpoints the graduation break points should be set to 110% of
the capacity. The scale uses the same graduation from zero to capacity. This
turns off the breakpoint feature.
6. The display shows “AdC.rt”. Press the PRINT/ACCUMULATE button. The display
shows the current setting flashing. This sets the internal A/D conversion time at one
of two choices. An entry of ‘0’ results in the full conversion time for the most stable
results. An entry of ‘1’ results in a reduced conversion time which extends battery
life. For the CW250 it is recommended to leave this set to ‘1’. Note that if this
setting is changed, the scale must be recalibrated. Use the LOCAL/TOTAL button
to increment and the ZERO button to decrement the number. When the desired
ADC rate is displayed press the PRINT/ACCUMULATE button.
7. The display shows “AZt”. Press the PRINT/ACCUMULATE button. The display
shows the current setting. Press the LOCAL/TOTAL or the Zero button to cycle
through the auto zero tracking options. (1 d, 3 d, .5 d. oFF, or 6 d) If the displayed
weight is less than the number of grads shown for a given amount of time, the
weight will be zeroed off. When the desired auto zero tracking setting is displayed
press the PRINT/ACCUMULATE button.
8. The display shows “ZEr0.r”. Press the PRINT/ACCUMULATE button. The display
shows the current setting flashing. Use the LOCAL/TOTAL button to increment and
the ZERO button to decrement the number. The zero range is the percentage the
zero can move from the original zero obtained at calibration. The zero button will
not work if outside the zero range; and the display will show “ZEr0.r” with the error
icon lit if the zero range is set to 1, 2, or 3. If 4-6 is selected, the zero button will
simply not function when an attempt is made to zero the scale outside the range.
When the number for desired zero range number is displayed press the
PRINT/ACCUMULATE button. (0=off, 1=1%, 2=2%, and 3=5%, 4=1%, 5=2%,
6=5%)
9. The display shows “grAd”. Press the PRINT/ACCUMULATE button. The display
shows the current setting with the number flashing. Press the LOCAL/TOTAL or the
Zero button to cycle through the graduation options. When the desired graduation
setting is displayed press the PRINT/ACCUMULATE button. (grad options 0.02,
0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, or 100)
At this point the display will show “SAvE” for about 1 second and advance to show “CAP”.
Page 23 of 29
CW250, Users
Rev J, October, 2010
Weight Calibration
One to ten load weights need to be applied to calibrate the scale. Using multiple point
calibration allows the unit to weigh more accurately; by removing undesirable
characteristics of load cells. A typical weight calibration is a three point calibration. This
means three different and optimal loads are applied and entered (not including the zero
point). If you do not conveniently have the three different weights available, you may
also use one or two point calibration. To calibrate with one point, simply turn off the
scale after completing step 13 as listed below. To calibrate with two points, turn off the
scale after completing step 15 as listed below. The CW250 has the capability to apply
and load up to 10 calibration points.
10. The display will show “SAvE” for about 1 second and advance to show “CAP”. Press
the PRINT/ ACCUMULATE button. The display will show the current capacity
setting with the far right number flashing. Use the LOCAL/TOTAL button the
advance the number and the ZERO button the move the number flashing to the left.
Enter the capacity of the scale and press the PRINT/ACCUMULATE button when
the scale capacity is displayed.
11. The display shows “LL-00”. With no weight applied to the scale press the PRINT/
ACCUMULATE button.
12. The display shows “HH-01”. Press the PRINT/ACCUMULATE button. The display
will show “00000” with the far right number flashing. Use the LOCAL/TOTAL button
to advance the number and the ZERO button to move the number flashing to the
left. Enter the value of the first load and press the PRINT/ACCUMULATE button
when the value of the first load is displayed.
13. The display shows “LL-01”. Apply the first load to the scale. With the first load
applied to the scale press PRINT/ACCUMULATE button.
14. The display shows “HH-02”. Press the PRINT/ACCUMULATE button. The display
will show “00000” with the far right number flashing. Use the LOCAL/TOTAL button
to advance the number and the ZERO button to move the number flashing to the
left. Enter the value of the second load and press the PRINT/ACCUMULATE
button when the value of the second load is displayed.
15. The display shows “LL-02”. Apply the second load to the scale. With the second
load applied to the scale press PRINT/ACCUMULATE button.
16. The display shows “HH-03”. Press the PRINT/ACCUMULATE button. The display
will show “00000” with the far right number flashing. Use the LOCAL/TOTAL button
to advance the number and the ZERO button to move the number flashing to the
left. Enter the value of the third load and press the PRINT/ACCUMULATE button
when the value of the third load is displayed.
17. The display shows “LL-03”. Apply the third load to the scale. With the third load
applied to the scale press PRINT/ACCUMULATE button.
Page 24 of 29
CW250, Users
Rev J, October, 2010
18. The display shows “HH-04”. Press the PRINT/ACCUMULATE button. The display
will show “00000” with the far right number flashing. Use the LOCAL/TOTAL button
to advance the number and the ZERO button to move the number flashing to the
left. Enter the value of the forth load and press the PRINT/ACCUMULATE button
when the value of the forth load is displayed.
19. The display shows “LL-04”. Apply the forth load to the scale. With the forth load
applied to the scale press PRINT/ACCUMULATE button.
Repeat step 12 and 13 for each additional “HH-05” – “HH-10” and “LL-05”- “LL-10”
combination. If the scale is turned off at any time the calibration data acquired to that
point will be retained. After the PRINT/ACCUMULATE button is pressed after “LL-10”,
the display will return to normal weighing.
Finished
Following calibration, replace the strap to shorting pins 2 and 3 (RUN); replace the
assembly and reattach the assembly with the screws. This will ensure that the
calibration information of the scale is protected from being changed.
Note: Care must be taken to ensure the wire harness is seated properly to
prevent it from being pinched between the display assembly and the scale
casing.
Page 25 of 29
CW250, Users
Rev J, October, 2010
Error Messages
Message
EEPE
AD 1
LCbxx
LC xx
Lo.bat
CAP
Zero.r
disp
C0p or
CLOC
AC.Err
Meaning
EEPROM failure. Scale will require recalibration
AD converter failure. Circuit board may need to be repaired or replaced
Self test shunt-current circuitry has detected one or multiple load cell
errors. A load cell may have failed or there is a bad connection. “XX”
shows which cell or connection has failed: xx = 1-8 (single digit) if
there is a single load cell failure, or xx = 2-digit hex code if multiple
cells failed. (Examples: “LCb 2” = load cell # 2 error, “LCb0F” = load
cells #1-#4 errors)
Run-time overload limit circuitry has detected one or multiple load cell
errors. A LC may have failed or there is a bad connection. “xx” shows
which cell or connection has failed: xx = 1-8 (single digit) if there is a
single load cell failure, or xx = 2-digit hex code if multiple cells failed.
(Examples: “LC 2” = load cell # 2 error, “LC 0F” = load cells #1-#4
errors)
Low battery. Replace the battery or connect the charger if using
rechargeable batteries. (Warning: Do not charge alkaline cells)
Overcapacity. Reduce load to scale
Zero range error. Scale tried to zero off a load outside the range
specified in the zero range setting. Remove any load applied and
press zero.
Display error. Number is too large to fit on the display.
Diagnostic power-up messages. These won’t affect normal operation
and can typically be ignored.
This indicates that certain conditions for accumulation have not been
met and that the attempted scale accumulation was rejected. The
scale will not accumulate and will display the error message “Ac.Err” if
the current weight is negative, zero, or if the weight is in motion. Also,
only one accumulation is allowed while weight is still on the scale(s).
The weight should be temporarily removed in between accumulations.
See the “Accumulating Print Axle” section for details.
Page 26 of 29
CW250, Users
Rev J, October, 2010
Diagnostics
The ‘step’ choice that starts the calibration menu also allows special codes for technical
diagnostic work. Typically only scale technicians should use these features. Here is the
list of possible entries to the ‘step’ choice related to the CW250:
Message
000
001
005
121
131
311
711
911
Meaning
Simply advance to the first Calibration Menu step.
Advance to weight calibration.
This brings you to the Mode Menu, just as if the cal strap had been left
in the RUN position.
Raw counts display diagnostic
Constant power to all cells diagnostic
Restore all radio settings to defaults (CH = 1, Network ID = 8000, and
Encryption disabled). Display will then show “save” if successful, or
“no rf” if there is no radio installed or some other radio failure.
Restore all settings to defaults, but leave weight calibration untouched.
Restore all settings to default settings, including weight calibration. It is
recommended that this only be used as a last resort, as your previous
calibration and settings will be lost after running this.
Step Choice Table
Page 27 of 29
CW250, Users
Rev J, October, 2010
Connector
The diagram below shows the pin-out for the PT connector on the side of the CW250:
PT connector
A: RS-485 A
B: TXD (RS232)
C: - Charging Voltage
D: none
E: +Charging Voltage
F: Ground
G: RS485 B
H: none
Page 28 of 29
CW250, Users
Rev J, October, 2010
How to reach Intercomp
Things to know:
Inform the Service Dept. that the product is a CW250 scale.
When was the scale purchased?
Where was the scale purchased?
What is the serial number?
For Intercomp Service call or fax:
FAX # (763)-476-2613
(763)-476-2531
1-800-328-3336
or fill out Service Support Form at :
www.intercompcompany.com
Copyright Intercomp Company © 2010
ALL RIGHTS RESERVED
Page 29 of 29
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