Rice Lake SURVIVOR CW-80 User manual

SURVIVOR®CW-80
Checkweigher
Supervisor’s
Operating Guide
33752

January 2004
Contents
1. Key and Display Functions ....................................................................................... 1
2. Establishing Tares .................................................................................................... 5
3. Setting ACCEPT Band Tolerances............................................................................. 6
4. Establishing ID Registers ......................................................................................... 9
5. Setting Over and Under Arrowhead Displays ......................................................... 10
6. Setup Examples...................................................................................................... 12
7. Display Error Codes ................................................................................................ 14
8. Remote Serial Commands...................................................................................... 15
Purpose of this Guide:
These instructions are provided to allow a plant supervisor to do minor external programming and establish
product ID registers prior to an operator taking over the daily operation of the CW-80 Checkweigher. The
instructions assume a qualified scale technician has installed, configured, and calibrated the unit. In nearly all
cases, the supervisor’s programming can be done without entering the Setup mode. If necessary to enter the Setup
mode, contact the qualified scale technician who installed, configured, and calibrated the CW-80.
An Operator’s Card is included for the end user, and should be left with the unit. This card gives basic weighing
instructions for an operator using the CW-80 in one of two TARGET operating modes. One side of the card is
used for TARGET applications in which pushbutton tares are enabled. The other side should be used for
TARGET operating mode in which tares are entered digitally with front panel keys.
The Operator’s Card assumes that the supervisor has established all product ID registers, and has made them “read
only” registers that cannot be changed by the operator.
Scope of this Guide:
Using these instructions and working entirely in Operating mode through the front panel keys, a supervisor can:
• Establish and store up to 299 separate product ID registers—each with its own ID number, ACCEPT
tolerance band, tare value, and unit of measure
•Modify existing product registers
•Set the Over/Under arrowhead displays into a customized bar graph configuration
For advanced setup, installation, and operation of the CW-80 requiring entering the indicator enclosure, consult
the CW-80 Installation and Service Manual, or contact your qualified scale technician who installed, configured,
and calibrated your CW-80.
© 2004 Rice Lake Weighing Systems, Inc. Rice Lake, WI USA. All Rights Reserved.
RICE LAKE WEIGHING SYSTEMS • 230 WEST COLEMAN STREET • RICE LAKE, WISCONSIN 54868 USA

18 CW-80 Supervisor’s Operating Guide
If the CW-80 is commanded to send an active ID register
which has data, it will send back data in the format below.
CW-80 RESPONSE FORMAT WITH DATA PRESENT
Response Format:
[STX][ID#][“,”][Under Data][“,”][Over Data][“,”]
[Tare Data][“,”][Unit] [EOL]
[STX] ASCII character (02 Hex) “Start of Text” that
is a preamble to all bidirectional
serial command responses
[ID#] Three-character field that specifies the ID
where the OVER/UNDER/TARE/UNITS data
is stored.
[“,”] ASCII Character 2C Hex.
[Under Data] Eight-character field (including sign and
decimal point) of the under tolerance. All
eight characters are sent and spaces are
substituted for leading zeros. A positive sign is
transmitted as a space.
[Over Data] This is an eight-character field (including sign
and decimal point) for the over tolerance. All
eight characters are sent and spaces are
substituted for leading zeros. A positive sign is
transmitted as a space.
[Tare Data] This is an eight-character field including sign
and decimal point that represents the Tare
Value associated with this ID. The field is in
the same format as the displayed format for
the Unit of measure associated with the ID
record. All eight-characters are sent and
spaces are substituted for leading zeros. A
positive sign is transmitted as a space.
[UNITS ] Single character indicating the units of
measure.
L = pounds; K = kilograms; G = grams; O =
ounces;
Z = pounds and ounces
[EOL] ASCII End of Line “CR” or “CR/LF” as
determined at Setup.
Commands to Read ID Registers
?I is used to command the CW-80 to send back an ID
Register set to the host controller.
TO READ THE CONTENTS OF AN ID REGISTER SET:
Command Format:
[SOH][Addr][“?I”][ID#][CR]
[SOH] ASCII character (01 Hex) “Start of Header”.
[Addr] Two-character ASCII sequence (00-99) for the
CW-80 address.
[“?I”] Two-character sequence for the command
instructing the checkweigher to send the
associated Tare/Tolerance data out the serial
port.
[ID#] Three-character field that specifies the ID
where the OVER/UNDER/TARE/UNITS data
is stored.
[CR] ASCII character (1D Hex) “Carriage Return”
used to end a complete serial command.
Example:
To request the Tare/Tolerance values from the register set
of ID#16 of a Checkweigher with an Address of 85, send
the following:
[SOH]85?I016[CR]
If the CW-80 is commanded to send an inactive ID
register with no data, it sends back the “Empty” response.
CW-80 “EMPTY” RESPONSE IF NO DATA IS PRESENT
Response Format:
[STX][ID#][:][sp][“empty”][EOL]
[STX] ASCII character (02 Hex) “Start of Text”.
[ID#] Three-character ID
[“:”] ASCII Character 3A Hex.
[sp] ASCII Character 20 Hex.
[“empty”] ASCII literal string, excluding the “” marks.
[EOL] ASCII End of Line “CR” or “CR/LF” as
determined at Setup. Command Format Key:
[ ] represents a separate field of information.
“ ” represents literals which will appear as shown.

CW-80 Supervisor’s Operating Guide 17
Commands to Write to ID Registers
The !I command is used to transmit an ID Register set to a
CW-80, storing the contents in the desired ID# location.
USING THE !I COMMAND TO WRITE TO AN ID REGISTER SET:
Command Format:
[SOH][Addr][“!I”][ID#][“,”][Under Data][,][Over Data][,]
[Tare Data[,][Unit] [CR]
[SOH] ASCII character (01 Hex) “Start of Header”.
[Addr] Two-character ASCII sequence (00-99) for
the CW-80 address.
[“!I”] Two-character sequence that instructs the
checkweigher to store the associated Tare/
Tolerance data in the ID#.
[“,”] ASCII Character 2C Hex.
[ID#] Three-character field of the ID number.
[Under Data] 7-character field (including a decimal point)
that represents the Under Value to be
associated with this ID. The field must be in
the same format as the displayed format for
the Unit of measure associated with the ID
record. All 7 characters must be sent and
spaces are represented by leading zeros.
[Over Data] 7-character field (including a decimal point)
that represents the Over Value to be associated
with this ID. All 7 characters must be sent and
spaces are represented by leading zeros.
[Tare Data] This is a 7 character field including decimal
point that represents the Tare Value to be
associated with this ID. All 7 characters must
be sent and spaces are represented by leading
zeros.
[UNITS] This is a single character field indicating the
units of measure. L = pounds; K = kilograms;
G = grams;
O = ounces; Z = pounds and ounces.
[CR] ASCII character (1D Hex) “Carriage Return”
used to signify the end of a complete serial
command..
Example:
To enter the the following Tare/Tolerance register (Tare
value=1.3 kg, Over value= 20.05 kg, Under value of
20.00 kg) into ID#45 Checkweigher with Address 36, send
the following:
[SOH]36!I045,0020.00,0020.05,0001.30,K[CR]
ID Reference Commands
ID Reference Commands instruct the CW-80 to transmit
various values associated with a particular ID number.
ID REFERENCE COMMANDS
“RT” (RECALL TARE REGISTER COMMAND)
“XT” (XMIT TARE COMMAND)
“XTG” (XMIT TARGET COMMAND)
“XO” (XMIT OVER COMMAND)
“XU” (XMIT UNDER COMMAND)
“CT” (CLEAR TARE COMMAND)
“CTG” (CLEAR TARGET COMMAND)
“CO” (CLEAR OVER COMMAND)
“CU” (CLEAR UNDER COMMAND)
Command Format:
[SOH][ADDR HIGH][ADDR LOW][COMMAND][ID#][CR]
[SOH] ASCII character (01 Hex) “Start of Header”
that is a preamble to all bidirectional serial
commands.
[ADDR HIGH] ASCII character for the most significant digit
of the two-digit CW-80 address.
[ADDR LOW] ASCII character for the least significant digit
of the two-digit CW-80 address.
[COMMAND] Two-character sequence that instructs the
CW-80 to perform a function. The list of
commands is detailed above.
[ID#] Three-character field of ID number.
[CR] ASCII character (1D Hex) “Carriage Return”
used to end a complete serial command.
Command Format Key:
[ ] represents a separate field of information.
“ ” represents literals which will appear as shown.

16 CW-80 Supervisor’s Operating Guide
Inquiry Commands (Requesting Status/Data)
Inquiry Commands instruct a selected CW-80 to transmit
weight data or status values of parameters back to the
host controller. When you enter this type of serial
command, the selected CW-80 responds with data.
INQUIRY COMMANDS (REQUESTING STATUS)
“XS” (XMIT STATUS COMMAND)
“RT” (RECALL TARE COMMAND
“XTG” (XMIT TARGET COMMAND)
“XO” (XMIT OVER COMMAND)
“XU” (XMIT UNDER COMMAND)
“XT” (XMIT TARE COMMAND)
“X” (XMIT DATA COMMAND)
“XW” (XMIT WEIGHT DATA COMMAND)
“XC” (XMIT CURRENT TOLERANCE STATUS)
“XTA” (XMIT ALL TARES COMMAND)
“XTGA” (XMIT ALL TARGETS COMMAND)
“XOA” (XMIT ALL OVERS COMMAND)
“XUA” (XMIT ALL UNDERS COMMAND)
Command Format:
[SOH][ADDR HIGH][ADDR LOW][COMMAND][CR]
[SOH] ASCII character (01 Hex) “Start of Header”
that is a preamble to all bidirectional serial
commands.
[ADDR HIGH] ASCII character for the most significant digit
of the two-digit CW-80 address.
[ADDR LOW] ASCII character for the least significant digit
of the two-digit CW-80 address.
[COMMAND] Simple Command of one or more characters
that instructs the CW-80 to perform a
function. The list of available commands is
detailed above.
[CR] ASCII character (1D Hex) “Carriage Return”
used to end of a serial command.
Simple Commands (No Response)
Simple Commands instruct the CW-80 to perform various
functions. When you enter this type of serial command,
the CW-80 acknowledges the command with “*[CR]”.
SIMPLE COMMANDS (NO RESPONSE—ACKNOWLEDGE ONLY)
“Z” (ZERO COMMAND)
“B” (BUFFER ENABLE COMMAND)
“U” (BUFFER DISABLE COMMAND)
“D” (DATA BUFFER XMIT / DO NOT CLEAR)
“Y” (DATA BUFFER XMIT / CLEAR)
“H” (CLEAR BUFFER COMMAND)
“CT” (CLEAR TARE COMMAND)
“CTG” (CLEAR TARGET COMMAND)
“CO” (CLEAR OVER COMMAND)
“CU” (CLEAR UNDER COMMAND)
Command Format:
[SOH][ADDR HIGH][ADDR LOW] [COMMAND][CR]
[SOH] ASCII character (01 Hex) “Start of Header”
that is a preamble to all bidirectional serial
commands.
[ADDR HIGH] ASCII character for the most significant digit
of the two-digit CW-80 address.
[ADDR LOW] ASCII character for the least significant digit
of the two-digit CW-80 address.
[COMMAND] Simple Command of one or more characters
that instructs the CW-80 to perform a
function. The list of available commands is
detailed above.
[CR] ASCII character (1D Hex) “Carriage Return”
used to end of a serial command.
Command Format Key:
[ ] represents a separate field of information.
“ ” represents literals which will appear as shown.

CW-80 Supervisor’s Operating Guide 15
8. Remote Serial Commands
Overview
The EDP (Electronic Data Processing) port allows you
to transfer important weigh-process data to printers or
computers.
The CW-80 Checkweigher uses either bidirectional
RS-232 or simplex (output only) 20 mA current loop
communications as its standard communications
interface. All characters are standard ASCII charac-
ters.
Optionally, an RS-485 communications package is
available to provide networking capability of up to 32
devices (i.e., CW-80s, printers, and computers). Each
can be individually addressed.
By using special commands from either a terminal
keyboard or a specially-designed computer program,
you can manipulate Over/Under/Tare and Units
values, call up current settings for Tare/Tolerance sets,
and perform reporting functions. Also, you can use
special commands to transmit weight data directly
from the CW-80’s EDP port on demand.
When you send a command via the EDP port, the
command must be in a specific format. Generally, you
type the command on the remote keyboard and press
ENTER or RETURN to send it in the formats shown.
Note:
Commands sent to CW-80 address 0 are broadcast
commands. All CW-80s in the network interpret and act
upon the particular command. No REPLY acknowledge
character string is to be transmitted to indicate receipt
of a command, since serial port bus contention will
likely occur.
RS-485
This section describes four different command
categories for implementing CW-80 EDP (serial)
communications:
•Simple Commands (No Response)
•Inquiry Commands (Response)
•ID Reference Commands
•Read ID and Write to ID Commands
Each command category in this section includes a
description of the related format.

14 CW-80 Supervisor’s Operating Guide
7. Display Error Codes
Display Condition Description
X
0
1
2
3
4
5
6
7
OVERLOAD
UNDERLOAD
ID ILLEGAL
NO CALIB.
NO TOLERANCE
BUFFER FILLING
BUFFER FULL
FAIL SIGNAL
DATA OUTPUT
ERROR
CALIBRATION
ERROR
LOW SIGNAL
ERROR
KEYPAD BUTTON
ERROR
NO UNITS
ID ERROR
Weight on scale is greater than calibrated capacity
Displayed weight is less than calibrated capacity range.
ID number 0 cannot be stored. ID number must be a
positive integer.
Configuration settings relating to scale capacity, divi-
sions, grads, or decimal pt. have been changed.
Recalibrate scale using current settings.
No tolerances have been entered for the displayed ID
Buffer 90% full.
Buffer 100% full.
No load cell signal present.
Cannot display lb/oz data in 6 display digits.
CAL SP value must be greater than 20% of full scale.
Less than 0.3 µV/grad signal is present.
Keypad button X is not producing a signal.
Keypad button 0 = target error.
Keypad button 1 = print error.
Keypad button 2 = zero error.
Keypad button 3 = over error.
Keypad button 4 = ID error.
Keypad button 5 = tare error.
Keypad button 6 = units error.
Keypad button 7 = under error.
EEPROM checksum failure. CW-80 has defaulted to
original units.
EEPROMwritefailure.UnabletowritetoIDselected.

CW-80 Supervisor’s Operating Guide 13
Un 1, Ov 1
From front panel (not in Setup mode), Under tolerance (Un 1) is keyed in at
7.999; Over tolerance (Ov 1) is keyed in at 8.041.
Un 1 setting = 7.999 lb, Ov 1 setting = 8.041 lb.
Un 1-2, Un 2
To find .01 lb expressed in graduations, divide .01 lb by .001 lb/grad.
.01 lb ÷.001 lb/grad = 10 grads .
Un 1-2 setting = 10 grads, Un 2 setting = 10 grads.
Ov 1-2, Ov 2
.01 lb ÷.001 lb/grad = 10 grads.
Ov 1-2 setting = 10 grads, Ov 2 setting = 10 grads.
Acceptable Product weight between 4.010 lb - 4.990 lb , ACCEPT
tolerances set by operator using 4.000 lb and 5.000 lb test weights and
secondary arrowheads lighting at .1 lb intervals.
PTT mode, 6 lb capacity scale, 3000 divisions, .002 lb/grad.
Un 1, Ov 1
Under tolerance (Un 1) set at 4.000 lb with test weight and PTT entry.
Over tolerance (Ov 1) set at 5.000 lb with test weight and PTT entry.
Un 1-2, Un 2
To find .1 lb expressed in graduations, divide .1 lb by .002 lb/grad.
.1 lb ÷.002 lb/grad = 50 grads.
Un 1-2 setting = 50 grads, Un 2 setting = 50 grads.
Ov 1-2, Ov 2
.1 lb ÷.002 lb/grad = 50 grads.
Ov 1-2 setting = 50 grads, Ov 2 setting = 50 grads.

12 CW-80 Supervisor’s Operating Guide
Product tolerance of ±.2 lb. for any target weight.
TARGET mode, 30 lb capacity scale, 3000 divisions, .01 lb/grad, with
various weights used for target.
To find .2 lb expressed in graduations, divide .2 lb by .01 lb/grad.
.2 lb ÷.01 lb/grad +1 = 21 grads.
Un 1 setting = 21 grads; Ov 1 setting = 21 grads.
Product tolerance of 15 lb, ±5%.
TARGET mode, 30 lb capacity scale, 3000 divisions, .01 lb/grad, with
15.00 lb test weight used for target.
5% of 15 lb = .75 lb.
To find .75 lb expressed in graduations, divide .75 lb by .01 lb/grad.
.75 lb ÷.01 lb/grad +1 = 76 grads.
Un 1 setting = 76 grads; Ov 1 setting = 76 grads.
Product tolerance of 50 lb, -1%, +3%.
TARGET mode, 60 lb capacity, 3000 divisions, .02 lb/grad, with 50.00 lb
test weight used for target.
1% of 50 lb = .5 lb.
To find .5 lb expressed in graduations, divide .5 lb by .02 lb/grad.
.5 lb ÷.02 lb/grad +1 = 26 grads.
Un 1 setting = 26 grads.
3% of 50 lb = 1.5 lb.
1.5 lb ÷.02 lb/grad +1 = 76 grads.
Ov 1 setting = 76 grads.
Acceptable Product weight between 8.000 lb and 8.040 lb , ACCEPT
tolerances keyed in by operator, and secondary arrowheads lighting at
.010 lb intervals.
SET mode, 10 lb capacity, 10,000 divisions, .001 lb/grad.
6. Setup Examples

CW-80 Supervisor’s Operating Guide 11
ACCEPT
UNDER OVER
ACCEPT
UNDER OVER
ACCEPT
UNDER OVER
ACCEPT
UNDER OVER
Un 1-2
Un 2
NOTE:
The factory-set defaults for all bar graph
values which require grad settings in
Setup mode is 3 grads.
Secondary Bar Graph Values — Un 1-2, Un 2, Ov 1-2, Ov 2
The Secondary Arrowhead displays shown above are not necessary for
simple Under/Accept/Over checkweigh operations, and most installers
choose not to set them up, but merely use the factory-set defaults. In some
applications, accurate displays are helpful to give a visual clue as the
operator adds or removes weight to “zero in” on the acceptable weight.
These bar graph values are established in the Setup mode under the OPER-
ATE submenu where the values are entered as grads. Entering these values
in grads allows conversion to different units of measure during weighing
operations without changing the relative size of the value.
Note that these bar graph values are cumulative as you move further from
the ACCEPT band. See the following example.
Assume you are using a 30 lb scale in TARGET mode with 3000
divisions and a .01 lb grad size.
If you needed an ACCEPT tolerance of ±.1 lb, you would set Un 1 and
Ov 1 to 11 grads (11 x .01 lb = .11 lb). With a 10.0 lb target, the
primary arrowheads (Un 1, Ov 1) closest to ACCEPT would then come
on at 9.89 lb and 10.11 lb.
If you want the secondary arrowhead displays to come on with the same
±.1 lb change, you would set Un 1-2 and Ov 1-2 to 10 grads. The Un 1-
2 and Ov 1-2 arrowhead display would then come on at 9.79 lb and
10.21 lb. You would set Un 2 and Ov 2 for 10 grads, so the Un 2 and
Ov 2 arrowheads would come on at 9.69 lb and 10.31 lb.
Calculating Weight Tolerance Values in Graduations
To find a weight tolerance value in graduations, use the following formula:
Number of grads = tolerance value ÷grad size
For example, a 30 lb capacity scale with 3000 divisions has a grad size of
0.01 lb/grad.
Assume a TARGET operating mode application with a ±1.0 lb tolerance. To
find Un 1 and Ov 1 in grads:
# of Grads = (1.0 lb ÷.01 lb/grad) +1
# of Grads = 100 +1 =101
therefore, use 101 grads for Un 1 and Ov 1
Ov 2
Ov 1-2
NOTE:
When setting Ov 1 and Un 1, remember to
add 1 grad to the actual tolerance value.
The entire tolerance value will then be
ACCEPT, with the first arrowheads
lighting 1 grad outside this band.
Accessing Setup Mode:
Contact your installer or other qualified
scale technician for information on
accessing the CW-80 Setup mode.

10 CW-80 Supervisor’s Operating Guide
5. Setting Over and Under Arrowhead Displays
Overview
The various Under and Over arrowheads can be set up like a bar
graph in a sequential lighting pattern to give the CW-80 operator an
indication of how far the weight on the scale is under or over the
ACCEPT range.
The bar graph values which trigger the arrowheads to light are
established in either the Normal Weighing mode as weight units or
in the Setup mode as graduations.
Primary Bar Graph Values — Un 1, Ov 1
The inner arrowheads closest to the ACCEPT display are called the
Primary Arrowheads because their settings determine the ACCEPT
band. As such, they must be set for any Under/Accept/Over
checkweigh operation. These settings for the Primary Arrowheads
are also important because they can be used to trigger digital outputs
for OVER and UNDER conditions (if digital outputs are active).
When the scale weight is just under or just over the ACCEPT range
by 1 display division, the Under or Over arrowhead closest to the
ACCEPT band comes on. Because these are the first Over and
Under arrowheads to light when outside the ACCEPT band, they are
called Un 1 and Ov 1. To allow easy setting of Un 1 and Ov 1 values
without going into the Setup mode, these values can (in most cases)
be set from the Normal Weighing mode using weight values.
However, note in the OPERATE menu graphic below that the
TARGET mode requires Un 1 and Ov 1 to be set in grads while in
Setup mode.
ACCEPT
UNDER OVER
ACCEPT
UNDER OVER
same parameters as OU.Ptt
numbernumber
value in grads value in gradsvalue in gradsvalue in grads
value in grads value in gradsvalue in grads value in gradsvalue in grads value in grads
Ov 1
Un 1
Accessing Setup Mode:
Contact your installer or other qualified
scale technician for information on
accessing the CW-80 Setup mode.

CW-80 Supervisor’s Operating Guide 9
4. Establishing ID Registers
Overview
When the Setup menu under “ID STR” is set to ON, up to 299
separate ID registers can be established. Each ID number is normally
associated with a product, and must have four categories of informa-
tion stored with it:
•Unit of measure
• Lower limit of ACCEPT band
•Upper limit of ACCEPT band
•Tare value
The operator can access these product ID registers by pressing the
ID key as shown on the separate CW-80 Operator’s Card.
Setting Up an ID Register
Check that the desired units annunciator is lit. If a different unit is
active, press the UNITS key until the correct unit is lit. See note at
left.
Establish and store the desired tare.
Establish and store the desired lower ACCEPT tolerance (Un 1).
Establish and store the desired upper ACCEPT tolerance (Ov 1).
Press ID key to display the current ID number. Use the keys beneath
the digits to change the display to the ID number you want to
associate with the units, tare, and tolerances that you have just
established.
Immediately press the ID key a second time to store the completed
ID register. “STORED” will briefly be displayed.
If the 3-second time-out occurs before you press the ID key a second
time to store, the new values will not be stored with the displayed
ID. Instead, previous values stored with that ID number will be
recalled, and “RECALL” will be displayed. If this happens, begin
the procedure again.
Protecting ID Registers from Accidental Overwrite
To prevent an operator overwriting ID registers you have set up, you
can configure the CW-80 for an ID “read only” operation. The
operator can access any ID register by pressing the ID key but can’t
change the values nor establish new registers.
Read-only operation must be established in Setup mode after you
have established all ID registers. Contact your installer or other
qualified scale technician for information on accessing the CW-80
Setup mode.
√
√
NOTE:
In addition to the primary unit, up to three
alternate units (ALT 1, ALT 2, ALT 3) can
be established in the Setup mode. Refer to
p. 3-5 in the CW-80 Installation and
Service Manual for information on setting
up alternate units.
ID

8CW-80 Supervisor’s Operating Guide
OU.SET Operating Mode
In OVER/UNDER SET mode, the operator sets the limits of the ACCEPT
band by keying in weight values with front panel keys.
OU. SET Operation Instructions
To set Un 1 (the lower limit), press the UNDER key. Both Under arrow-
heads will flash to indicate you are in the Under Display/Set mode. The
current Un 1 value will be displayed.
If you wish to change the value, you must first establish the direction of
change. If you will be increasing the value, press the OVER (up) key once.
If you will be decreasing the value, press the UNDER (down) key once.
Pressing the key that
is beneath a digit will
increment or decre-
ment that digit,
depending on the
direction of change
you established with
the OVER or
UNDER key in the
previous step.
When the desired new value is displayed, press the ID or TARGET key (or
wait 3 seconds without a keypress). The CW-80 will store the new value
then shift back into normal weighing mode.
To set Ov 1 (the upper limit), press the OVER key. Both Over arrowheads
will flash to indicate you are in the Over Display/Set mode.
If you wish to change the value, follow the same steps as for changing the
lower limit, then store the value with the ID or TARGET key..
Any weights that fall between those limits are in tolerance and will light the
ACCEPT display.
Any number of weighments can be made with these stored values. The
values will remain active until the operator changes the lower or upper limit.
To prevent the operator from changing values you have stored with an ID
register, you may disable the OVER and UNDER keys in Setup mode.
PTT.SET Operating Mode
PUSH TO TOLERANCE/SET mode combines both methods of setting
lower and upper limits for the ACCEPT band. Each limit value is first set
with a weight on the scale and stored by the appropriate UNDER or OVER
keypress, as in the OU.PTT mode. A second press of the key puts the CW-
80 into a Display/Set mode where the stored value can be digitally changed,
as in the OU.SET mode. Final values are stored by pressing the TARGET
or ID key, or automatically after a 3-second time-out with no activity.
NET
ZERO
MOTION
NEG
g
kg
lb
oz
Net
ID
TARGET
TAREZERO UNITS PRINT
T
UNITS
UNDER
OVER
UNDER
OVER
ACCEPT
C W -80
NOTE:
In PTT. SET mode, the TARGET or
ID keys can be used to store the final
Ov 1 and Un 1 values rather than
waiting for the 3-second time-out
period.
CAUTION!
If the unit is placed in Setup mode before
storing new Un 1 and OV 1 values in an
ID register, the values will be lost upon
returning to Normal Weighing mode.
NOTE:
In OU. SET mode, the TARGET or
ID keys can be used to store the final
Ov 1 and Un 1 values rather than
waiting for the 3-second time-out
period.
NOTE:
A fast double press of the UNDER or
OVER key will both establish the
direction and put the CW-80 into an
Auto Rolling sequence. The display
rolls down or up, changing at an
initial speed of 2 display divisions
per second, then increasing to 10
display divisions per second. To stop
the display rolling, press either the
OVER or UNDER key.
OVER
UNDER
Accessing Setup Mode:
Contact your installer or other qualified
scale technician for information on
accessing the CW-80 Setup mode.

CW-80 Supervisor’s Operating Guide 7
TARGET Operation Instructions
Using the same example with a 30# x 0.01# scale with - 0.00, +0.20
tolerances, if weighing 10 lb packs:
Place a certified 10 lb weight on the platter and press TARGET key.
This sets the ACCEPT band from 10.00 lb to 10.20 lb.
Any number of weighments can be made with these stored values. The
values will remain active until TARGET key is pressed again.
If changing to 12 lb packs, place a certified 12 lb weight on the platter and
press TARGET key.
This sets the ACCEPT band from 12.00 lb to 12.20 lb.
Any number of weighments can be made with these stored values.
If changing to 15 lb packs, place a certified 15 lb weight on platter and press
TARGET key.
This sets the ACCEPT band from 15.00 lb to 15.20 lb.
OU. PTT Operating Mode
In OVER/UNDER PUSH TO TOLERANCE mode, the operator sets the
limits of the ACCEPT band with actual weights placed on the scale.
The lower limit is set by placing an unacceptably-low weight on the platter
and pressing the UNDER key. This sets the point where the first Under
arrowhead will come on.
The upper limit is set by placing an unacceptably-high weight on the platter
and pressing the OVER key. This sets the point where the first Over
arrowhead will come on.
Any weights which fall between those limits are in tolerance and will light
the ACCEPT display.
OU. PTT Operation Instructions
Place weight on the platter equal to where you want the lower limit of the
ACCEPT band to be (where the first Under arrowhead will light) and press
the UNDER key.
Place weight on the platter equal to where you want the upper limit of the
ACCEPT band to be (where the first Over arrowhead will light) and press
the OVER key.
Any number of weighments can be made with these stored values. The
values will remain active until the UNDER or OVER keys are pressed
again.
NOTE:
The TARGET key is automatically
disabled when the CW-80 is in
OU. PTT mode.
NOTE:
In the TARGET mode of operation,
the operator can use the OVER and
UNDER front panel keys to tempo-
rarily override the established
settings for Un 1 and Ov 1. These
new settings will remain active until
the TARGET key is pressed again, or
until the CW-80 is powered down. If
you want to lock out the operator
from overriding Un 1 and Ov 1
settings you have stored with an ID
register, the OVER and UNDER
keys can be disabled in the Setup
mode.
TARGET
OVER
UNDER

6CW-80 Supervisor’s Operating Guide
When the desired
value is displayed,
press the ID or
TARGET key (or
wait 3 seconds
without a keypress).
The CW-80 will
store the new value
then shift back into
Normal Weighing
mode.
NET
ZERO
MOTION
NEG
g
kg
lb
oz
Net
ID
TARGET
TAREZERO UNITS PRINT
T
UNITS
UNDER
OVER
UNDER
OVER
C W -80
UNDER
OVER
ACCEPT
3. Setting ACCEPT Band Tolerances
ACCEPT
Target Value
Un 1 Ov 1
Overview
The CW-80 allows a choice of four ways to set the upper and lower limits of
the ACCEPT band. The parameter chosen under the OPERATE menu
(while in the Setup mode) determines how the limits of the ACCEPT band
are set. Once the parameter is chosen, the actual ACCEPT band limits are
set while in the Normal Weighing mode.
Depending on your application, you may want to allow the operator to
establish or change ACCEPT band limits. Alternately, you may want to set
up these limits yourself then lock the operator out of this setting function to
prevent accidental change of the limits you have set. There are several ways
you can use to lock out the operator from changing settings. See Section 4 of
this guide for more information.
TARGET Operating Mode
This mode is useful in applications where many different products are to be
checkweighed, all having the same ACCEPT band tolerances. An example
might be in a meat packing plant where a production line checkweighs 10 lb,
12 lb, and 15 lb packs, all having an ACCEPT tolerance of - 0.00 lb, + 0.20 lb.
To assign the same tolerance for many different weights, the ACCEPT band
for this operating mode must be set in grads, rather than weight. These grad
settings are made in the Setup mode as submenu items under the TARGET
parameter. The lower limit of the ACCEPT band is set with “Un 1” in the
submenu, and the upper limit with “Ov 1”.
Using the above meat packing example with a 30# scale and a 0.01# grad
size, “Un 1” should be set to 1 grad (0.01 lb), and “Ov 1” should be set to 21
grads (0.21 lb). The ACCEPT band will then be applied to the target weight
with a tolerance of -0.00 lb, +0.20 lb.
Accessing Setup Mode:
Contact your installer or other qualified
scale technician for information on
accessing the CW-80 Setup mode.

CW-80 Supervisor’s Operating Guide 5
2. Establishing Tares
Overview
The TARE function can be disabled (OFF), set to function as a push-to-tare
(PTT) that acquires the weight on the platter when the TARE button is
pushed, or can be set so tare values are entered digitally with keypad buttons
(SET).
In either case, if you are setting up ID registers for multiple products—each
with its own ID, Tare, Units, and ACCEPT tolerances—you may wish to
ensure that the operator does not accidentally change the Tare values during
operation. You can do that by disabling the TARE key after you have set up
all ID registers, but before turning the CW-80 over to the operator. You
must be in the Setup mode to turn the TARE key OFF. Contact your installer
or other qualified scale technician for information on accessing the CW-80
Setup mode.
PTT Operation
With platter empty, be sure ZERO annunciator light is on. If not, press
ZERO button.
Place the desired object to be tared off on the platter. Press TARE to store
the weight value of the object.
The CW-80 will shift into Net mode and the display will show 0. If the
platter is empty and the scale is at gross zero, pressing the TARE key will
remove any previously entered tare weight.
SET Operation
Press the TARE key to display the current tare value.
All Under and Over arrowheads will flash to indicate that the CW-80 is in
the Tare Display/Set mode. This mode lasts for only 3 seconds unless a key
is pressed, which resets the 3-second time interval.
If you want to increase the displayed value, press OVER (up) to establish
the direction. If you want to decrease the value, press UNDER (down).
Use the four keys
beneath the first
four digits to change
the value. Each
single press of a key
will increment (if
you pressed OVER)
or decrement (if you
pressed UNDER)
the digit above that
key.
NET
ZERO
MOTION
NEG
g
kg
lb
oz
Net
ID
TARGET
TAREZERO UNITS PRINT
T
UNITS
UNDER
OVER
C W -80
UNDER
OVER
ACCEPT
√
√

4CW-80 Supervisor’s Operating Guide
TARGET
ID
TARGET key
When the CW-80 is set up in Target operating mode, pressing the
TARGET key acquires the weight on the scale as the desired target
value. The CW-80 then computes the Under and Over values around this
target value based on tolerance settings defined in the Setup mode.
ID key
The ID key is used to call up and activate a particular ID number and its
Over/Under/Tare/Units register. The ID key is also used to store an ID
with its Over/Under/Tare/Units register.
NET, ZERO, MOTION, NEG Annunciator Lights
NET
Indicates that the CW-80 is in the Net Weight display mode.
ZERO
Indicates that the current displayed weight reading is within ±0.25
display division (dd) of Zero.
MOTION
Indicates that the weight reading is unstable because the scale is “in
motion”.
NEG
Indicates that the displayed digits represent a negative value.
kg, g, lb, oz Annunciator Lights
kg
Indicates the unit of measure is kilograms.
g
Indicates the unit of measure is grams.
lb
Indicates the unit of measure is pounds.
oz
Indicates the unit of measure is ounces.
lb/oz
When both the “lb” and “oz” lights are illuminated, indicates that the
unit of measure is pounds and ounces.
g
kg
lb
oz
NET
ZERO
MOTION
NEG
Net

CW-80 Supervisor’s Operating Guide 3
ZERO key
The ZERO key sets the current Gross weight to Zero.
UNITS key
The UNITS key switches the display to an alternate unit of measure if
alternate units have been established.
PRINT key
The PRINT key sends “on-demand” data out the serial port.
TARE key
The TARE key can be set to work in one of three modes:
SET Mode
Pressing the TARE key displays the current tare value. That value can
then be changed numerically using keypad buttons.
Ptt (push to tare) Mode
Pressing the TARE key acquires the weight on the scale as the current
tare value. If pressed at zero gross weight, current tare value is removed.
OFF
Disables the tare function. Entry of tare values is not permitted.
TARE
T
PRINT
UNITS
UNITS
ZERO
OVER key / UP ARROW key
OVER key
The OVER key displays the current “Over tolerance” value, which is a
weight just outside the upper limit of the ACCEPT band.
UP ARROW function of key
When changing numerical values, pressing this key establishes an
upward direction for increasing the displayed value. Disabling the
OVER key does not disable the UP ARROW function of the key.
UNDER key / DOWN ARROW key
UNDER key
The UNDER key displays the current “Under tolerance” value, which is
a weight just outside the lower limit of the ACCEPT band.
DOWN ARROW function of key
When changing numerical values, pressing this key establishes a
downward direction for decreasing the displayed value. Disabling the
UNDER key does not disable the DOWN ARROW function of the key.
OVER
UNDER

2CW-80 Supervisor’s Operating Guide
OVER Weights
If the weight on the scale is at least one graduation above the acceptable
range, “ACCEPT” is off and one or more of the amber “OVER” arrowheads
light. The sequence in which the arrowheads light indicates how far over
acceptable the weight on the scale is:
When the weight is just over the acceptable range, the amber “OVER”
arrowhead closest to ACCEPT lights.
ACCEPT
UNDER OVER
If the weight is further above the acceptable range, both amber “OVER”
arrowheads light.
ACCEPT
UNDER OVER
If the weight on the scale is greatly over the acceptable range, only the
furthest amber “OVER” arrowhead lights.
ACCEPT
UNDER OVER
By factory-set defaults, the different arrowhead displays are set to light at 3
grad intervals from each other. Those settings can be altered in the Setup
mode, under the OPERATE submenu.
Key Functions
NET
ZERO
MOTION
NEG
g
kg
lb
oz
Net
ID
TARGET
TAREZERO UNITS PRINT
T
UNITS
UNDER
OVER
UNDER
OVER
ACCEPT
C W -80
Accessing Setup Mode:
Contact your installer or other qualified
scale technician for information on
accessing the CW-80 Setup mode.

CW-80 Supervisor’s Operating Guide 1
1. Key and Display Functions
Overview
The CW-80 Checkweigher is a high-speed scale programmed to compare
weight readings to pre-set tolerance limits that define an ACCEPT range.
Any weight placed on the scale will be displayed as either within the
ACCEPT range, or in an UNDER or OVER state. The degree that a weight
is under or over the acceptable tolerance can be indicated by arrowheads
lighting sequentially in a display like a bar graph.
ACCEPT Weight Range
If a weight placed on the scale falls within the acceptable range set, the
green “ACCEPT” display lights.
ACCEPT
UNDER OVER
UNDER Weights
If the weight on the scale is at least one graduation below the acceptable
range, “ACCEPT” is off and one or more of the red “UNDER” arrowheads
light. The sequence in which the arrowheads light indicates how far under
acceptable the weight on the scale is:
When the weight on the scale is just under the acceptable range, the
red “UNDER” arrowhead closest to ACCEPT lights.
ACCEPT
UNDER OVER
If the weight is further beneath the acceptable range, both red
“UNDER” arrowheads light.
ACCEPT
UNDER OVER
If the weight on the scale is greatly under the acceptable range, only
the furthest red “UNDER” arrowhead lights.
ACCEPT
UNDER OVER
Red Green Amber
ACCEPT
UNDER OVER
Red Green Amber