CAMBRIDGE CSW-15AT Manual instruction

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TABLE OF CONTENTS
Meter connections ------------------------------------------------------------------ 3
1.0 Operation ------------------------------------------------------------------------ 4
1.1 Key Functions ---------------------------------------------------------- 4
1.2 Error Messages --------------------------------------------------------- 4
1.3 Numeric Entries -------------------------------------------------------- 5
1.4 Setup Parameters ------------------------------------------------------- 5
2.0 Scale Procedure ----------------------------------------------------------------- 6
2.1 Software Navigation Flowchart -------------------------------------- 6 - 7
2.2 Scale Menu Definitions ----------------------------------------------- 8 - 9
3.0 Calibration Procedure --------------------------------------------------------- 10
3.1 Calibration Menu Definitions ---------------------------------------- 10
3.2 Calibration -------------------------------------------------------------- 11
3.3 Linearity Correction --------------------------------------------------- 11
4.0 Communications Setup -------------------------------------------------------- 12
4.1 Communications Menu Definitions --------------------------------- 12
5.0 Testing Procedure ------------------------------------------------------------- 13
5.1 Testing Menu Definitions ------------------------------------------- 13
6.0 Warranty ------------------------------------------------------------------------ 14
7.0 Assistance ---------------------------------------------------------------------- 14

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METER CONNECTIONS
To connect power via AC wall adapter cable to the CSW-15AT meter. First make sure the
On/Off switch on the rear of the meter is in the off position. Connect the wall adapter to your
110VAC outlet. Next, connect the other end of the cable to the connector on the rear of the
indicator.
On/OFF
Switch
COMMUNICATIONS SIGNAL
PORT
Pin # Description Pin # Description
1 ------ Shield 1 ------ +EXC
2 ------ RXD 2 ------ -SIG
3 ------ TXD 5 ------ Shield
4 ------ +5V 6 ------ -EXC
5 ------ SGND 7 ------ +SIG

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1.0 OPERATION
1.1Key Functions:
ZERO Brings the scale to a zero balance reading. If the ZERO key
is pressed and held for 5 seconds the Calibration zero value
will be displayed.
GRS/NET Toggles the display between Gross weight and Net weight.
This key is also used to enter Setup & Calibration Mode.
To enter, press and hold this key until the Parameter (P xxx)
Event counter is displayed, then release. Immediately after
CodE is displayed, enter in sequence (within 5 seconds) TARE,
lb/kg, GRS/NET, and PRINT/ENTER. The display will
indicate ScAlE and you are now in Setup & Calibration mode.
Note: P xxx and C xxx are event counters that will
increment each time one or more changes are made
to the Scale or Calibration Parameters.
TARE Enters the Gross weight value into the Tare display and switches
to the net display mode. If the TARE key is pressed and held for 5
seconds the current Tare value will be displayed.
Lb/kg Toggles the display between pounds and kilograms.
1.2Error Messages:
ScnEg When the weight is more than 10 divisions negative from the zero
calibration point.
OLD The scale is in an overload condition.
BAtLo Will flash when the battery voltage falls to 10.8VDC and will be
displayed constantly when the voltage falls to 10.2VDC.
Err d More than 5000 scale divisions have been selected in S1 Ntep or S1
Angle mode. More than 20,000 scale divisions have been selected in
S1 No Mode.

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1.3Numeric Entries:
Once you have entered Setup and Calibration mode, (as described on the previous
page) some entries may require entering a numeric value.
To enter a numeric value:
1. Press and release the lb/kg key to move into the desired menu field.
2. Press and release the ZERO key, the first digit will begin to flash.
3. Use the up and down arrow keys to increase or decrease the value of this
digit until you reach the desired value.
4. Press the TARE key to move to the next digit and repeat step 3.
When you are satisfied with the value of each digit press the PRINT/ENTER key to
save your entry and return to the menu.
1.4Setup Parameters:
To begin press and hold this key until the Parameter (P xxx) Event counter is displayed,
then release. Immediately after CodE is displayed, enter in sequence (within 5 seconds) TARE,
lb/kg, GRS/NET, and PRINT/ENTER. The display will indicate ScAlE and you are now in Setup
& Calibration mode.
Note: P xxx and C xxx are event counters that will increment each time one or more
Changes are made to the scale Scale or Calibration Parameters.
With the display indicating ScAlE, press the GRS/NET key to move down to change a
parameter. This allows the operator to change any one of the Scale Parameters S1 thru S18. For
example, press the GRS/NET key to move down until S2 is displayed, S2 is used to set the
capacity of the scale. Press the lb/kg key to move right into the S2 parameter. The current capacity
will be displayed. Press the ZERO key; the first digit will begin flashing. Enter the new capacity
using the steps described in section 1.4 shown at the top of the page. Once you have the capacity
entered, press the PRINT/ENTER key to enter the value and return to S2.
The same steps can be followed to enter the count by. Press the GRS/NET key to move
down until S3 is displayed. Press the lb/kg key to move right into the S3 parameter. The current
Count By will be displayed. Use the up and down arrow keys to increase or decrease the value.
Use the left and right arrow keys to adjust the decimal point. When the desired Count By is
entered, press the PRINT/ENTER key to enter the value and return to S3.

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2.0 SCALE PROCEDURE
2.1 Software Navigation Flowchart:
SCALE
TEST
RS-232
END
CALIBRATION
S1
Ntep
( Ntep)
N0
Angle
C1
Zero & clear
Show Raw
Counts then
“0”
R1
Baud Rate
1200,8,N,1-
19200,8,N,1?
T1
Version
Software
Version
(Gross,Tare,Net)
Weight only
Net only
Gross only
S2
Capacity
1 to
999,999
(5000)
C2
Zero
Show Raw
Counts then
“0”
R2
Output
Format
T2
Display
Illuminate
Segments
1,2,5,/Dec
(5)
C3
Span Point
Show
actual
weight
S3
Count by
(key), Polled,
Continuous
T3
Keys
Display
key row &
column
R3
Output
Type
S4
Overload
105% of
Capacity
Or Entered
C4
Span Point
Linearity
point
R4
Receiver
T4
A to D
A to D
Raw
Counts
(Disabled)
Std. Receiver,
Remote Control
S5
Zero Limit
1.9%
100%
(100%)
C5
Span Point
Linearity
Point
T5
Com1 Serial
Jumper
Rx, Tx
loop back
End
0= Fastest
7= Slowest
(3)
C6
Span Point
Linearity
point
T6
Setup Data
Data sent
on Printer
Port
S6
Filter
S7
Motion Band
1 to 99
Divisions
(2)
C7
Span Point
Linearity
point
T7
Default
Tare = exit
Print = Default
S8
Motion Delay
0 to 99
Updates
(4)
End
End
(Normal)
Blank
Dashes
S9
Motion DSP

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2.1 Software Navigation Flowchart:
During setup you will be required to enter make numeric entries.(Ex: Capacity, Zero Band, etc…)
The following table outlines the keys used to perform these entries along with their function.
ZERO -------------- Key is used to move up.
GRS/NET --------- Key is used to move down.
lb/kg ---------------- Key is used to move right.
TARE -------------- Key is used to move left.
PRINT/ENTER --- Key is used to enter data.
S10
Zero Band
1 to 99
Divisions
(2)
0 - 99
Updates
(2)
S11
Zero Delay
S12
Zero
Tracking
1 - 99
Divisions
(1)
1 - 99
¼sec increments
(0)
S13
Tracking
Delay
S14
lb/kg
lb
kg
(lb/kg)
S15
Scale ID
1 – 99 ID’s
Used in RF
Link
0 – 15 where
15 is brightest
(15)
S16
Brightness
S17
Sleep Mode
0 – 30 min.
Blanks (0)
0 – 9 Deg.
(6)
S18
Angle Limit
End

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2.2 Scale Menu Definitions:
Enter Calibration / Setup mode by Pressing and holding the GRS/NET key until Parameter (Pxxx)
event counter is displayed, then release. Immediately after CodE is displayed, enter in sequence (within 5
sec.) TARE, lb/kg, GRS/NET, and PRINT/ENTER. ScAlE will be displayed. Press the down arrow key
to enter the scale menu. Press the right arrow key to enter each sub menu.
-P xxx, C xxx are event counters that will increment each time one or more changes are made
to the Scale or Calibration Parameters.
S1 Ntep (Ntep): Maximum divisions limited to 5000 negative
Scale negative message is displayed if the gross weight goes more
than 10 divisions below zero. If a capacity and count by of more
than 5000 divisions is selected Err d will be displayed, then you will
be returned to S2 to select a new capacity and count by.
Angle: Enables angle correction for Legal For Trade Lift truck scales.
No: 20,000 maximum division limits and no scale negative tests.
S2 Capacity 1 to 950,000 pounds. 5000 (Default)
S3 Count By .0001, .001, .01, .1, (1), 10, 100
.0002, .002, .02, .2, 2, 20, 200
.0005, .005, .05, .5, 5, 50, 500
S4 Overload (105%) of the scale capacity or user entered value.
S5 Zero Limit (100%) or 1.9% of scale capacity.
S6 Filter 0 to 7, Where 0 is the fastest response and least filtering and 7 is the lowest
response or most filtering. 3 (Default)
S7 Motion Band 1 to 99 divisions. The weight display must be stable within the selected
number of divisions for the motion indicator to be turned off. 2 (Default)
S8 Motion Delay 0 to 99 updates. The weight display must be within the motion band for the
selected number of updates in order to turn off the motion indicator. 4
(Default)
S9 Motion (Normal): When the scale is in motion the motion LED will aluminate.
Display Blank: When the scale is in motion the display will be blanked out.
Dashes: When the scale is in motion the display will show all dashes.
S10 Zero Band 1 to 99 divisions. The weight display must return to zero within the selected
number of divisions to be considered zero. 2 (Default)

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2.2 Scale Menu Definitions Continued:
S11 Zero Delay 0 to 99 updates. The weight display must be within the zero band for the
selected number of updates to be considered zero. 4 (Default)
S12 Zero 0 0.5 divisions.
Tracking (1) 1 division. (Default)
2 3 division
Press the right arrow key to enter. Use the up and down arrow keys to make
the desired selection (0, 1, or 2), then press the PRINT/ENTER key to save
and exit. S12 will be displayed.
S13 Tracking 0 to 99 updates. The amount of time that the display within the allowed
Delay graduations before it will automatically be zeroed. 10 (Default)
S14 lb/kg (lb/kg): allows the indicator to be switched between pounds and kilograms
By pressing the lb/kg key
LB: This sets the display to pounds only.
Kg: This sets the display to Kilograms only.
S15 Scale ID 1 to 99 Scale ID used in RF link output. 1 (Default)
S16 Brightness 0 to 15. Adjusts the LED display intensity where 15 is the brightest. 15
(Default)
S17 Sleep Mode 0 to 30 minutes. The display will turn off after the set time elapses with no
scale activity. 0 (Default).
S18 Angle Limit 1 to 9 Degrees. 6 (Default).
END Exits back to the main menu
( ) indicates factory set defaults unless otherwise specified.

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3.0 CALIBRATION PROCEDURE
3.1 Calibration Menu Definitions:
C1 Zero All Raw counts, (Pitch and Roll if in angle mode) will be
displayed. When ZERO is pressed an analog zero is done
and all calibration span points will be cleared.
If the indicator is in angle mode the Pitch and Roll offsets
will also be Zeroed.
C2 Zero Zeroed raw counts, (Pitch and Roll if in angle mode) will be
displayed. When ZERO is pressed an analog zero is done
and all calibration span points will NOT be cleared.
If the indicator is in angle mode the Pitch and Roll offsets
will be Zeroed.
C3 Span Point The last Calibration weight will be displayed then the actual
weight on the scale will be displayed.
If you do not wish to change the span point, press the TARE
key to exit without making any changes.
If the displayed weight does not match the known test
weight, use the numeric keypad to enter the correct weight.
Press the PRINT/ENTER key to save and exit. The display
will return to C3.
C4-C7 Span Points C4 to C7 are for linearity correction. They can be used in
order and in any quantity or not at all if no correction is
necessary.
C4 to C7 may be entered at any time without affecting the
Original calibration points.
The last calibration weight will be displayed then the actual
weight on the scale will be displayed. If no calibration
weight has been entered at this span point “notset” will be
displayed then the actual weight on the scale is displayed.
If the displayed weight does not match the known test
weight, follow the steps described for C3 Span Point on
adjusting the weight and entering the value.
END Exits back to the main menu

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3.2 Calibration:
Press and hold the GRS/NET key, as described previously in section 1.4. ScAlE
will be displayed. Press the lb/kg key to move right until CalIb is displayed. Press the
GRS/NET key to move down, C1 will be displayed. Press the lb/kg key to move right,
The raw counts will be displayed. With no weight on the scale and the scale level, press
the ZERO key, “0” will be displayed. Press the PRINT/ENTER key to save the
Entry. “0” is now entered and the display will return to C1.
Note: With the scale completely level use C1 or C2 to zero the angles. There is
No need to use both C1 and C2.
C1 will establish zero and clear all span points
C2 will establish zero without clearing all span points
Press the GRS/NET key to move down until C3 is displayed. Press the lb/kg
key to enter. The last calibrated weight will flash then the current weight on the scale
is displayed. Place a known test weight on the scale, with the scale level. Using the
steps described in section 1.4, for a numeric entry, enter the actual weight and press the
PRINT/ENTER key to save and exit. The display will return to C3.
3.3 Linearity Correction:
If Linearity Correction is needed, press the GRS/NET key (from the Calibration
menu) to move down until C4 is displayed. Press the lb/kg key to move right, the last
calibrated weight will flash or “notset” will flash if this point has not been previously set.
Next, the current weight on the scale will be displayed. Place a different known test weight
(not the same test weight that was used for C3) on the scale. Using the steps described in
section 1.3, for a numeric entry, enter the actual weight and press the PRINT/ENTER key
to save and exit. The display will return to C4. Repeat these steps for C5, C6 and C7.
Linearity Correction points (C4-C7) can be used in any order and in any quantity or
not at all if no correction is necessary. After calibration is complete you may return to
these correction points and make changes to its value without affecting any of the original
calibration points.

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4.0 COMMUNICATIONS SETUP
4.1 Communications Menu Definitions:
R1 Baud Rate 1200 to 115200 baud (9600) Default.8, n, 1
R2 Output 0 Gross, Tare, Net (Default)
Format “CR, LF, CR, LF [32 bytes of 2Eh], CR, LF, CR, LF, Gross (lb or kg),
:, six ASCII characters [indicated weight], CR, LF, Tare (lb or kg), sp,
:, six ASCII characters [indicated weight], CR, LF, CR, LF, CR, LF,
CR, LF” [100 bytes total output].
kg),
1(Weight only) “Six ASCII characters [indicated weight], CR, CF” [8
bytes total output].
2(Net only) “NT, Sp, Six ASCII characters [indicated weight], Sp, lb or
kg, CR, LF” [14 bytes total output].
3(Gross only) “GR, Sp, Six ASCII characters [indicated weight], Sp, lb
or kg, CR, LF” [14 bytes total output].
R3 Output Type 0 Output on command. Standard Print. (Default)
Output as selected by R2 Output Format. If “Q” is received
on the serial port the scale will output the same as if the
PRINT/ENTER key is pressed. The same holds true for:
Z = ZERO
U = lb/kg,
D = GRS/NET
T = TARE
1Slave Display output (numeric only) continuous Stx, Six
ASCII Characters (indicated weight), CR, LF (9 Bytes total output).
2Slave Display output (alphanumeric) continuous Stx, GR, NT, or TR,
Six ASCII Characters (indicated weight), lb, kg, CR, LF [15 bytes
total output].
3RF Link Output.
4Used for QSI Terminal.
R4 Receiver 0 Disabled (Normal Scale Mode). (Default)
1 Standard Receiver. Receives R3-3 RF Link output string, displaying data
as it appears on the scale. All keys are disabled with the exception of the
PRINT/ENTER Key. Pressing the PRINT/ENTER key will cause this port
to print.
2 Remote control. Receives R3-3 RF Link output string, displaying data as
it appears on the scale and allows full control of all scale meter functions.
END Exits back to main menu
( ) Indicates Factory default setting

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5.0 TESTING PROCEDURES
5.1 Testing Menu Definitions:
T1 Software Displays the software version. Press PRINT/ENTER to exit.
Version
T2 Display Flashes all display segments then all indicating Enunciators.
Press PRINT/ENTER to exit.
T3 Keys Press the ZERO key, b1 will be displayed.
Press the GRS/NET key, b2 will be displayed.
Press the TARE key, b3 will be displayed.
Press the lb/kg key, b4 will be displayed.
Pressing the PRINT/ENTER will exit back to the menu T3.
T4 A to D Displays Raw counts where a 1mV/V signal from the scale will display
25,000 counts. When the indicator is in angle mode, press the GRS/NET key
to cycle Pitch, Roll and Raw counts. Press the PRINT/ENTER Key to exit.
T5 Serial Serial Communications can be verified by connecting pins 2 and 3 on the
serial port. A single character will be echoed and pass or fail will be
displayed. Press the PRINT/ENTER key to exit.
T6 Setup Data Setup data will be sent out on the printer port.
T7 Default Resets the indicator back to the factory settings. This will clear all calibration
and setup data. “r you sure?” will be displayed. Press the TARE key to exit
without Defaulting, or press the PRINT/ENTER key to reset the indicator to
the factory default settings.

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6.0 WARRANTY
CAMBRIDGE warrants the CSW-15AT to be free of defects in workmanship and/or materials for 12
months from the date of shipment. This warranty of workmanship and/or materials is valid, if in the
opinion of CAMBRIDGE the equipment has not been mechanically, environmentally, or electrically
abused.
This warranty is limited, at the option of CAMBRIDGE, to repair, replace or an appropriate credit
adjustment, not to exceed the original equipment sale price paid to CAMBRIDGE. CAMBRIDGE
assumes no liability in connection with the sales of its products beyond that stated above.
Warranty replacement parts and or repair services are performed at the factory in Cumberland, Maryland
or by an authorized service group approved by CAMBRIDGE.
Warranty does not include travel expense if a factory technician is requested to perform repairs at a
location other than the factory.
It is the user’s responsibility to follow the proper set-up, calibration and operating procedures of the
CSW-15AT as described in this manual. If the operator has difficulty using their CSW-15AT properly,
please contact CAMBRIDGE at 1-301-724-4082. Any one of our Technicians will be happy to work
with the user via telephone.
Thank You!
7.0 ASSISTANCE
If at any time and you require assistance with your Model: CSW-15AT Indicator:
End User please contact your servicing scale dealer.
Authorized Cambridge Dealer/ Distributor please contact:
CAMBRIDGE SCALE WORKS, INC.
115 West Mary Street
Cumberland, MD 21502
Phone: [phone]
Fax: [phone]