GSE Model 351

GSE Model 351
GSE Model 351
CHECKWEIGHER
USERS GUIDE
Version 1.0
Model 351
USERS GUIDE
Version 1.0
GSE 351 Checkweigher Quick Reference Guide
Copyright © 2000 GSE Scale Systems. All rights reserved.
Published by:
GSE Scale Systems
42860 Nine Mile Road
Novi, MI 48375
USA
Information in this Operation Manual is subject to change without notice due to
correction or enhancement. The information described in this manual is solely the
property of GSE. No part of this manual may be reproduced or transmitted in any form or
by any means, electronic or mechanical, including photocopying and recording and sold
for any monetary figure without the express written permission of GSE.
GSE Locations
GSE Scale Systems
42860 Nine Mile Road
Novi, MI 48375
U.S.A.
Phone: (800) 755-7875
www.gse-inc.com
GSE Canada, Inc.
617 East Lake Road
Airdrie, Alberta Canada T4B 2B8
Phone:(403) 948-9921
Fax: (403) 948-1449
TABLE OF CONTENTS
CHAPTER 1: REFERENCE .............................................................................................. 1
KEYPAD ........................................................................................................................... 1
Keypad Legend............................................................................................................ 1
LOAD CELL CONNECTIONS .............................................................................................. 2
CHAPTER 2: CONFIGURATION .................................................................................... 3
PERCENT DEVIATION (CHECP) ......................................................................................... 3
ABSOLUTE VALUE (CHECA) ............................................................................................ 4
TARGET DEVIATION (CHECB) .......................................................................................... 4
SETUP A CHECKWEIGHING METHOD ................................................................................ 5
SETUP A TARGET ENTRY METHOD................................................................................... 6
EXIT THE SETUP MODE AND SAVE THE CHANGES............................................................ 8
CHAPTER 3: OPERATION .............................................................................................. 9
TARGET / TOLERANCE ENTRY METHOD .......................................................................... 9
Set a Fast Target......................................................................................................... 9
Disabled ...................................................................................................................... 9
Target ~ High/Low.................................................................................................... 10
All.............................................................................................................................. 10
CHAPTER 4: CALIBRATION ........................................................................................ 13
FAST CALIBRATION ....................................................................................................... 13
PERFORMING CALIBRATION ........................................................................................... 13
Select and Calibration Method and Establish Zero.................................................. 13
FIRST ZERO? .................................................................................................................. 14
LAST ZERO..................................................................................................................... 15
FALSE ZERO ................................................................................................................... 16
ONLY ZERO.................................................................................................................... 17
RESET CALIBRATION ..................................................................................................... 18
ESTABLISHING A SPAN .................................................................................................. 20
EXITING CALIBRATION .................................................................................................. 21
CHAPTER 5: TROUBLESHOOTING ............................................................................ 22
ERROR MESSAGES ......................................................................................................... 22
Operational Errors ................................................................................................... 22
Setup Mode Errors.................................................................................................... 23
Hardware Errors ...................................................................................................... 23
Calibration Errors .................................................................................................... 24
Communication Errors ............................................................................................. 25
Miscellaneous Errors................................................................................................ 25
VIEWING SETUP ............................................................................................................. 25
INFORMATION MODE PARAMETERS ............................................................................... 26
A/D CALIBRATION PROCEDURE..................................................................................... 29
i
ii
iii
CHAPTER 1: REFERENCE
This chapter describes the function of the keypad. Also tables show the connections for
the second scale and comm ports.
Keypad
Three rigid IP67 sealed buttons are used for operator input. Each key is assigned two
distinct functions. Various key combinations are also used. Each key has secondary
functions, allowing an operator to enter target values, perform piece samples, access
setup parameters, etc.
ZERO
UNITS
PRINT
KEYPAD LEGEND
All of the keys perform different functions. Some keys have more than one function.
PRINT =
Print a ticket or transmit from the weigh mode, also acts as a numeric key in the setup
mode or while entering a target, high limit and low limit value from the weigh mode.
UNITS =
Selects between the enabled scale units (lbs, kg, oz, lb oz, g) in the weigh mode and acts
as a space key in the setup mode or while entering a target, high limit and low limit value
from the weigh mode.
ZERO =
Will zero weight applied in the weigh mode and acts as a SELECT key in the setup
mode.
1
++ = Press the ZERO, PRINT and UNITS at the same time to access the
setup mode. Also this three key combination will exit the setup mode.
+ = Press the PRINT and UNITS keys at the same time.
This acts as an enter
key in the setup mode and a set target key in the weigh mode.
+ = Decrements the right-most digit during data entry.
+ = Backspace – erases right-most digit during data entry.
= Press the PRINT key and then the UNITS key.
Load Cell Connections
The Model 351 will come equipped with either an aluminum or stainless steel load cell.
The load cells used have 7 wires.
+ EX
Green
- EX
Black
+ SIG
White
- SIG
Red
+ SENSE
Orange
- SENSE
Blue
SHIELD
Wire
When replacing a load cell or main board, be sure to use the proper connections. The load
cell is connected to J8 on the main board. Make sure the sense jumpers E3 and E4 are set
to external (EXT).
2
CHAPTER 2: CONFIGURATION
The GSE 351 is a versatile instrument that can be configured in several different ways.
The GSE 351 offers three different methods of checkweighing (Percent Deviation,
Absolute and Target Deviation). The Model 351 comes from the factory preset with the
Percent Deviation checkweighing method.
Below you will find the explanations for each checkweighing method. Refer to Table 1
below for the factory default values of the checkweighing method, target entry method,
target, low tolerance and high tolerance. These are set as defaults when the unit is
delivered from the factory.
Table 1: Factory Defaults
Parameter
Checkweighing Method (Parameter 5100)
Target Entry Method (Parameter 5020)
Target (Weigh Mode)
Low Tolerance (Weigh Mode)
High Tolerance (Weigh Mode)
Setting
Percent Deviation
Fast Target Entry
5.00
2.00
2.00
Preceding the checkweighing method explanations, you will find the instructions for
accessing the setup mode and setting up a method that matches your application. Refer to
page 5 for complete details.
Percent Deviation (Checp)
The percent deviation method uses a target value in which the upper and lower tolerances
are deviated from the target. Upper and lower tolerances are in the form of a percentage.
The accept window is varied by a percentage of the target. For example, you have a part
that weighs 20 lbs and the acceptable tolerance is 2% high and low. The OK light will
illuminate when the weight is between the values of 19.6 and 20.4. Refer to the example
below.
Example: Target = 20, High Tolerance = 2%, Low Tolerance = 2%
20 + 2% = 20.4 and 20 – 2% = 19.6
Accept Window = 19.6 to 20.4
This light is yellow and will illuminate if the weight is less than 19.6 (PctLo).
OK
+
This light is green and will illuminate if the weight is between 19.6 to
20.4 (accept window).
This light is red and will illuminate if the weight exceeds 20.4 (PctHi).
3
Absolute Value (ChecA)
With an absolute value the acceptance window is determined by the high and low limits.
An upper limit and lower limit must be entered. For example, you want to have the OK
light illuminate when the weight is between the values of 19.8 and 21.3. Refer to the
example below.
Example: TargH = 21.3, TargL = 19.8
Accept Window = 19.8 to 21.3
This light is yellow and will illuminate if the weight is less than 19.8
(TargL).
OK
+
This light is green and will illuminate if the weight is between 19.8 to 21.3
(accept window).
This light is red and will illuminate if the weight exceeds 21.3 (TargH).
Target Deviation (Checb)
The target deviation method uses a target value in which the upper and lower tolerances
are deviated from the target. The upper and lower tolerances are fixed values. The accept
window is varied by adding the high tolerance to the target and subtracting the low
tolerance from the target. For example, you have a part that weighs 20 lbs and the
acceptable tolerance is 1.2 lbs high and 1 lb low. The OK light will illuminate when the
weight is between the values of 19 and 21.2 lbs. Refer to the example below.
Example: Target = 20, High Tolerance = 1.2, Low Tolerance = 1
20 + 1.2= 21.2 and 20 – 1 = 19
Accept Window = 19 to 21.2
This light is yellow and will illuminate if the weight is less than 19 (Lo).
OK
+
This light is green and will illuminate if the weight is between 19 and 21.2
(accept window).
This light is red and will illuminate if the weight exceeds 21.2 (Hi).
4
Setup a Checkweighing Method
To prevent accidental changes to the indicator setup, a sequence of keystrokes is used to
gain access to the setup mode.
To access the setup mode:
1. From the weigh mode press ++
Display Reads
Setup ~ Enter Code
The following keystrokes must be made within five seconds or the indicator will return to
the weigh mode.
2. Press Display Reads
P
3. Press Display Reads
PP
4. Press Display Reads
PPu
5. Press Display Reads
PPuu
6. Press +
Display Reads
Chgs ~ Poss!
P110.— — ~ F.S.= ~ 50.00
Access parameter 5100 from the setup mode:
1. Press seven times to select the first digit (5)
Display Reads
5
2. Press to advance to the next digit
Display Reads
5.
3. Press twice to select the next digit (1)
Display Reads
51
5
4. Press to advance to the next digit
Display Reads
51.
5. Press once to select the next digit (0)
Display Reads
510
6. Press to advance to the next digit
Display Reads
510.
7. Press once to select the next digit (0)
Display Reads
5100
8. Press to go to Parameter 5100
Display Reads
P5100.1 ~ Setpt ~ Checp
Choose a Checkweighing Method:
Press +to make your choice.
Press once to go to the next parameter.
Setup a Target Entry Method
This parameter determines how the target, high and low limits are modified from the
weigh mode. Access the setup mode as described on page 5.
The factory default setting is Fast Target. There are three other choices in this parameter.
Refer to Table 2 for details.
Table 2: Target and Limit Settings
Setting
Explanation
Target is set automatically by pressing the set
Fast Target
target buttons from the weigh mode.
Turns off the ability to change the target, high
Disabled
and low limits from the weigh mode. These
values can be changed in the setup mode.
Target
Only the target can be set from the weigh mode.
Set the target, high and low limits from the
All
weigh mode.
6
Accessing Parameter 5020 - Tolerance Setting (Hi-Lo)
1. Press seven times to select the first digit (5)
Display Reads
5
2. Press to advance to the next digit
Display Reads
5.
3. Press once to select the next digit (0)
Display Reads
50
4. Press to advance to the next digit
Display Reads
50.
5. Press three times to select the next digit (2)
Display Reads
502
6. Press to advance to the next digit
Display Reads
502.
7. Press once to select the next digit (0)
Display Reads
5020
8. Press to go to Parameter 5020
Display Reads
P5020.1 ~ Hi-Lo ~ All
Choose a Target Entry Method:
Press +to make your choice.
Press once to go to the next parameter.
7
Exit the Setup Mode and Save the Changes
Now all of the necessary changes have been made. Follow the instructions below to save
the changes made and exit to the weigh mode.
1. Press ++
Display Reads
Enter = Cal !
2. Press Display Reads
Enter = Stor
3. Press +
Display Reads
Chngs=Stord
4. Press +
Display Reads
Enters=End
5. Press +
Display Reads
0.00
8
CHAPTER 3: OPERATION
The Model 351 now comes with the factory default for fast target entry. This means that
a target can be set quickly by pressing two buttons at the same time.
Remove the Model 351 from the box, plug it in, put a target weight on the scale and press
the set target buttons ( and ) at the same time to set a known target. Refer to
Chapter 2 for instructions for changing the target entry method and checkweighing
method.
Target / Tolerance Entry Method
Below is an explanation of the choices at parameter 5020 and how they will be used
during operation.
SET A FAST TARGET
This choice was intended for use with either Percent Deviation (checp) or Target
Deviation (checb)checkweigh methods where only one target value will be entered.
For example, you want to set a new target weight of 15.30 lbs.
1. Make sure you are viewing the weight on the display (weigh mode).
2. Place the weight on the scale (15.30 lbs).
3. Press the set target keys ( and ) at the same time.
The display will show
15.30
Done!
The display will show 15.30 lbs and the OK light will be illuminated.
Beware that pressing the set target buttons will set the target equal to the
displayed weight, even if no weight is present on the scale. Also only the target
will be set and the tolerances will remain the same.
DISABLED
From the weigh mode the high limit value and low limit value can only be viewed and
not changed.
If + are pressed while in the weigh mode, the following displays will be
shown for one second each but cannot be changed.
9
tArGt
Loc’d
tArGL
1.00
tArGH
1.00
TARGET ~ HIGH/LOW
This choice will allow only the target to be set from the weigh mode. After the target is
set or the current target is accepted, the low and high tolerances will be shown for one
second each but cannot be changed.
For example you want to change the target to be 10.
1. Press the set target buttons + to access the target.
Display Reads
targ1~5.00
2. Press three times to select the digit 1
Display Reads
1
3. Press to move to the next digit
Display Reads
1.
4. Press once to select the digit 0
Display Reads
10
5. Press + to enter the target value
Display Reads
targ1~10.00
6. Press + again to exit to the weigh mode.
Display Reads
0.00
While in a mode calling for a numeric entry, the will scroll
through the number set and the acts as a space key moving over a
digit.
ALL
This choice will allow the target, high and low limits to be set from the weigh mode.
10
The choices fast target, target and All are the same when it comes to entering a high
limit and low limit using the Absolute checkweighing method.
Pressing the set target buttons + will access the target entry display.
Follow steps 1 –5 from the example for entering a target value. Use the method shown
below to enter the high tolerance and low tolerance.
Display Reads
10.00
targ1
Set the low tolerance to .50:
1. Press the set target buttons + to access the low tolerance.
Display Reads
Lo ~1.00
2. Press once to select the . (decimal).
Display Reads
.
3. Press to move to the next digit.
Display Reads
.0
4. Press five times to select the digit 5.
Display Reads
.5
5. Press to move to the next digit.
Display Reads
.50
6. Press + to accept the low tolerance.
Set the high tolerance to .25:
1. Press + to enter the high tolerance.
Display Reads
Hi ~1.00
2. Press once to select the . (decimal).
Display Reads
.
3. Press to move to the next digit.
Display Reads
.0
4. Press two times to select the digit 2.
Display Reads
.2
11
5. Press to move to the next digit.
Display Reads
.20
6. Press five times to select the digit 5.
Display Reads
.25
7. Press + to accept the high tolerance.
8. Press + to exit to the weigh mode.
If the value shown is the correct value press + to accept the value.
Press + to accept the settings and return to the weigh mode.
12
CHAPTER 4: CALIBRATION
Calibration uses the load cell(s) output signal to establish zero (no load) and span (test
load) reference points. Calibration information is retained in non-volatile memory in the
event of power-loss. There are two methods of accessing the Calibration Mode, exiting
the Setup Mode, and entering Fast Calibration. Both approaches are discussed below.
Refer to Establishing Zero on page 13 for complete examples of Fast Calibration
methods.
Fast Calibration
Fast Calibration allows calibration of the Model 351 scale system without accessing the
Setup Mode.
To access Fast Calibration from the Weigh Mode:
1. From the Weigh Mode, press + + .
Display Reads
Setup
Enter ~ Code!
2. Press Display Reads
Fast ~ Cal!
First ~ Zero? ~ -0.26
Performing Calibration
Calibration always begins by establishing a zero (no-load) reference. A complete
calibration also requires establishing a span (test load) reference. This section details
various methods for obtaining zero and span references.
Press [ZERO] during calibration to back up one step in the procedure.
SELECT AND CALIBRATION METHOD AND ESTABLISH ZERO
The Model 351 provides five methods for obtaining a zero (no load) calibration
reference, First Zero, Last Zero, False Zero, Only Zero, and Cal Reset. Press to scroll
through the five selections. Press +to select the displayed calibration method and
establish zero.
13
First Zero?
The most common zeroing procedure, First Zero is used to establish a new zero (no load)
calibration reference before proceeding to span the Model 351. Use this method for firsttime calibration and complete recalibration.
First Zero Calibration Method Example:
1. From the Weigh Mode, press + + .
Display Reads
Setup
2. Press .
Display Reads
Fast ~ Cal
First ~ Zero? ~ -0.26
3. Remove any load on the scale.
Display Reads
First ~ Zero? ~ -0.42
4. Press +to establish zero.
Display Reads
0.00
5. Pause for motion delay.
Display Reads
Enter ~ Load ~ 0.00
6. Place a 20lb test weight on scale.
Display Reads
Enter ~ Load ~ 19.66
7. Enter 20.
Display Reads
20
8. Press +to establish span.
Display Reads
20.00
9. Pause for motion delay.
Display Reads
Cal ~ Good? ~ 20.00
10. Press + to accept calibration.
Display Reads
Enter ~ =Stor
11. Press + to save calibration.
Display Reads
Enter ~ =End
14
12. Press + to exit calibration.
Display Reads
20.00
Remove the calibration weight.
Display Reads
0.00
Last Zero
The Last Zero procedure allows recalibration of the weighing device using an
existing test load. The last zero established by pressing from the weigh mode
will be used as the zero reference. Typically used for high capacity scales.
Establish gross zero before entering setup or calibration!
Last Zero Calibration with Weight Already Applied Example:
1. Remove any load on the scale.
Display Reads
10.
2. Press to zero the scale.
Display Reads
00.
3. Apply a 50 lb test weight to verify calibration.
Display Reads
49.70.
4. From the weigh mode press ++.
Display Reads
Setup
5. Press .
Display Reads
Fast ~ Cal
First ~ Zero? ~ 49.30.
6. Press .
Display Reads
Last ~ Zero? ~49.30.
7. Press +
to use last zero.
Display Reads
Enter ~ Load? ~ 49.70
8. Enter 50.
Display Reads
50
15
9. Press +to establish span.
Display Reads
50.
10. Pause for motion delay.
Display Reads
Cal ~ Good? ~ 50.
11. Press + to accept calibration.
Display Reads
Enter ~ =Stor
12. Press + to save calibration.
Display Reads
Enter ~ =End
13. Press + to exit calibration.
Display Reads
50.
14. Remove the calibration weight.
Display Reads
00.
False Zero
False Zero calibrates the Model 351 without removing the current gross weight. Typically used in
tank weighing applications where it may be both time consuming and costly to completely empty
the tank. This operation is achieved by establishing a false (temporary zero) zero reference. Test
weights may then be added to verify calibration. The zero reference determined during the last
calibration is not affected.
False Zero Calibration Without Removing Existing Load Example:
1. Press ++.
Display Reads
Setup
2. Press .
Display Reads
Fast ~ Cal
First ~ Zero? ~ 50.75
3. Press .
Display Reads
False ~ Zero? ~50.75
4. Press + to establish false (temporary) zero.
Display Reads
Units ~ =lb
16
5. Pause to display calibration units.
Display Reads
Enter ~ Load? ~ 00.
6. Place a 2500lb test weight on scale.
Display Reads
Enter ~ Load? ~ 25
7. Enter 25.
Display Reads
2500
8. Press + to establish span.
Display Reads
25
9. Pause for motion delay.
Display Reads
Cal ~ Good? ~ 25
10. Press + to accept calibration.
Display Reads
11. Press
Enter ~ =Stor
+ to save calibration.
Display Reads
Enter ~ =End
12. Press + to exit calibration.
Display Reads
50.55
13. Remove the calibration weight.
Display Reads
00.
Only Zero
Only Zero is used to establish a new calibration zero without affecting the span.
This is useful for correcting changes to the scale’s dead load.
Only Zero Calibration Example:
1. From the Weigh Mode, press ++.
Display Reads
Setup
2. Press .
Display Reads
Fast ~ Cal
First ~ Zero? ~26.40
17
3. Press .
Display Reads
Only ~ Zero? ~ 26.40
4. Remove any load on the scale.
Display Reads
Only ~ Zero? ~ 26.20
5. Press + to establish zero.
Display Reads
00.
6. Pause for motion delay.
Display Reads
Cal ~ Good? ~ 00.
7. Press +to accept calibration.
Display Reads
Enter ~ =Stor
8. Press + to save calibration.
Display Reads
Enter ~ =End
9. Press + to exit calibration.
Display Reads
00.
Reset Calibration
Cal Reset may be necessary when an over-load or under-load condition exists,
preventing the completion of the calibration process. Calibration Reset adjusts
the zero and gain factors of the A/D amplifier to factory default values for
maximum sensitivity.
After performing a calibration reset, a complete recalibration is required. The
effects of a calibration reset do not take effect until the Model 351 is recalibrated
and calibration information has been saved.
If Code 02 (under-load) or Code 03 (over-load) is displayed during
calibration, press to perform a calibration reset.
Reset Calibration Gain Factors Example:
1. Press ++.
Display Reads
Setup
18
2. Press .
Display Reads
Fast ~ Cal
First ~ Zero? ~ xx.xx
3. Remove any load on the scale.
Display Reads
First ~ Zero? ~ xx.xx
4. Press + to establish zero.
Display Reads
Enter ~ Load? ~ 0.00
5. Place a 50lb test weight on scale.
Display Reads
Code03
6. Press .
Display Reads
First ~ Zero? ~ -0.26
7. Remove any load on the scale.
Display Reads
First ~ Zero? ~ -0.42
8. Press + to establish zero.
Display Reads
0.00
9. Pause for motion delay.
Display Reads
Enter ~ Load ~ 0.00
10. Place a 50lb test weight on scale.
Display Reads
Enter ~ Load ~ xx.xx
11. Enter 50.
Display Reads
50
12. Press + to establish span.
Display Reads
50.00
13. Pause for motion delay.
Display Reads
Cal ~ Good? ~ 50.00
14. Press + to accept calibration.
Display Reads
Enter ~ =Stor
15. Press + to save calibration.
Display Reads
Enter ~ =End
19
16. Press + to exit calibration.
Display Reads
50.00
17. Remove the calibration weight.
Display Reads
0.00
Establishing A Span
Once a zero reference has been established, the Model 351 displays Enter ~ Load and
awaits the entry of a span (test load) value. This value may be entered before or after the
test load has been applied.
If the calibration weight value was entered before applying the test weight, Add ~ Load is
displayed indicating that the test weight should now be applied. Apply the test weight,
press + and proceed to Exiting Calibration on page 21.
If it is necessary to repeat the calibration process, press at the Cal ~ Good? prompt
and repeat the calibration process.
Establishing span with a 50 lb test weight:
1. Place a 50lb test weight on scale.
Display Reads
Enter ~ Load ~ xx.xx
2. Enter 50.
Display Reads
50
3. Press + to establish span.
Display Reads
50.00
4. Pause for motion delay.
Display Reads
Cal ~ Good? ~ 50.00
When making a significant change to the previous calibration, or when the
calibration weight is less than 5% of full scale capacity, ReCal ~ ??? will be
displayed instead of Cal ~ Good? In this event it is recommended that the
calibration be performed a second time. Press + to recalibrate, or press to skip recalibration.
20
Exiting Calibration
Once zero and span have been established, the newly acquired calibration information
must be saved to non-volatile memory before it will be realized in the Weigh Mode.
To exit and save calibration information:
1. Press + to accept calibration.
Display Reads
Enter ~ =Stor
2. Press + to save calibration.
Display Reads
Enter ~ =End
3. Press + to exit calibration.
Display Reads
50.00
To exit without saving calibration information:
1. Press to accept calibration.
Display Reads
Enter ~ =Stor
2. Press +.
Display Reads
Enter ~ =Undo
3. Press+.
Display Reads
Enter ~ =End
4. Press+to exit calibration.
Display Reads
99.66
When saving calibration, parameters changed in the Setup Mode are also
saved with their new selections.
21
CHAPTER 5: TROUBLESHOOTING
This chapter contains error messages and information parameters, as well as information
on setup parameter selections and A/D Calibration.
Error Messages
The M351 utilizes the following types of error messages: Operational Errors, Setup Mode
Errors, Hardware Errors, Calibration Errors, Communication Errors, and Miscellaneous
Errors.
OPERATIONAL ERRORS
Code02
Under Load. Input signal is less than negative full scale. Check
load cell wiring. Verify correct capacity selection at P110.
Code03
Over Load. Input signal is greater than positive full scale. Use
same checks as “under load” above.
Funct ~ Disbl
Attempted to perform a function disabled in the Setup Mode.
Code 04
The digits on the display have exceed the six digit display capacity.
Code 05
Zero attempted beyond that allowed by P118.
Code 08
Input signal greatly exceeds the valid range. Check the load cell
connection.
Delay
Indicates that a motion delay is in effect (zero).
Delay ~ Abort
Acknowledges that a motion delayed function was aborted.
Print ~ Abort
Acknowledges that a motion delayed print request was aborted.
Add ~ Load!
If displayed after performing a count sample, this message
indicates that a larger sample size is required.
Out of ~ Range
Attempted to enter a value beyond the allowable range.
Targ3 ~ Error
A conflict occurred with a Target value entry (example: target
entry is less than Hi or Lo limit).
22
Need APS
A setpoint start is initiated and the setpoint is based on quantity
and no piece weight has been established (start will not occur).
SETUP MODE ERRORS
Bad ~ Code!
An incorrect access code was entered.
Unit ~ Seald
Access to the Setup or Calibration Mode was denied. Check the
internal “YES/NO” program jumper.
Unit3-Ntep
Code 49.
Parameter 440 (NTEP) is enabled and parameter 152 (third unit) is
set to an additional unit. The third unit is not NTEP approved.
Entry ~ Error
An invalid entry was made.
Need ~ Entry
A numeric value was required before pressing +.
Out of ~Range
The entered value exceeded the allowable range.
Can’t ~ Set!
Attempt to change a parameter that does not allow an entry.
ResGT ~ 260E3
Code 35.
The number of divisions exceeds 260000 (see P110, P111).
ResGT ~ 25E3
The number of divisions exceeds 25000 (see P110, P111).
ResLT ~ 100!
The number of divisions is less than 100 (see P110, P111).
ResLT ~ 1 !!
Number of divisions is less than one (see P110, P111).
HARDWARE ERRORS
Code00
An EPROM problem detected during power-up (U2).
A-D ~ Bad!
Or Code17
Problem with A/D chip detected. Disconnect any options
installed and re-power the unit. Options are connected to the
same serial lines as the A/D so they may prevent it from working
properly.
23
Deflt ~ A-D
Bad A/D calibration values. Recalibrate A/D (see A/D
Calibration Procedure on page 29).
Re- ~ Boot!
EEPROM data could not be read. Attempting power-up reset.
Chec ~ E2
EEPROM data error (U4).
Deflt ~ Setup
An error occurred when reading setup data from the EEPROM
during power-up. All parameters are set to factory default.
Ch.XXXX
A checksum error occurred during power-up. All anunciators are
lit. The EPROM integrity test failed or is improperly seated.
E2 ~ Full!
The EEPROM setup exceeds the memory capacity.
NoSpc ~ Free!
The current setup exceeds the setup RAM capacity.
CALIBRATION ERRORS
F.S. ~ TooHi
The entered calibration weight will result in an over-capacity
condition at full scale. Verify that the full scale (P110) and
calibration weight value are correct.
F.S. ~ TooLo
The entered calibration weight will result in a full scale input
signal less than the minimum allowed. Verify that the full scale
(P110) and entered weight value are correct.
Add ~ Load!
is required.
The calibration weight is less than 0.1% of capacity. More weight
ReCal ~ ???
Repeat the cal. procedure for accuracy. This prompt appears when
the calibration weight is less than 5% of capacity, or when the A/D
coarse gain is adjusted.
Entry ~ Error
An invalid entry was made.
Bit-Er
The stop bit of a received character did not occur when expected.
Verify that protocol (P200 – P204) matches that of the connected
device.
TrHold
Data transmission is inhibited due to a deasserted handshake.
Press +to abort transmission. Check P204.
24
COMMUNICATION ERRORS
Par-Er
The selected parity (P202) does not match that of the connected
device.
Buf-E r
The receive buffers capacity was exceeded. This indicates a
handshaking problem. Check P204 and verify proper
communication port connections
MISCELLANEOUS ERRORS
T.X.YYYY
If catastrophic errors occur in the software, a trap error may occur
and freeze the display with address information. (X = bank number
and YYYY = the address of the trap error. Press any key five
seconds after viewing message to reboot the unit).
Viewing Setup
While troubleshooting it may be helpful to view the setup parameter selections. This can
be done using the procedure below (even with the internal program jumper in the “NO”
position). Note that accessing the Setup Mode in this manner will not permit parameter
changes.
To view the setup parameter selections:
1. From the Weigh Mode, press ++.
Display Reads
Setup
Enter ~ Code!
2. Press +.
Display Reads
-No- ~ Chgs!
P110.-- ~ F.S.= ~ 100.0
3. Navigate the Setup Mode by pressing the key.
To exit the Setup Mode:
1. Press ++.
2. Press +.
25
Information Mode Parameters
A series of informational parameters are available beginning at P60000. These
parameters may be accessed from the Setup Mode, or from the Weigh Mode as described
below (Table 3) gives an explanation of each information parameter.
To access the informational parameters:
1. Press ++.
Display Reads
Setup
Enter ~ Code!
2. Press +.
Display Reads
-No- ~ Chgs!
P110.-- ~ F.S.= ~ 100.0
7. Press eight times to select the digit 6
Display Reads
6
8. Press to move to the next digit
Display Reads
6.
9. Press once to select the digit 0
Display Reads
60
10. Press to move to the next digit
Display Reads
60.
11. Press once to select the digit 0
Display Reads
600
12. Press to move to the next digit
Display Reads
600.
13. Press once to select the digit 0
Display Reads
6000
14. Press to move to the next digit
Display Reads
6000.
26
15. Press once to select the digit 0
60000
Display Reads
16. Press + to enter the target value
targ1~10.00
Display Reads
17. Press + again to exit to the weigh mode.
0.00
Display Reads
While in a mode calling for a numeric entry, the will scroll
through the number set and the acts as a space key moving over a
digit.
As each information parameter is accessed, the parameter number is briefly
displayed, followed by the parameter name, and finally the parameter value. To
repeat the parameter number and name sequence, press . To exit the
information mode, press + .
Table 3: Information Parameters
PARAMETER
60000
60001
60100
60101
60102
60200
60201
60202
60203
60204
61100
61101
61102
NAME
E2Ins
E2Fre
-GSE- ~ c1998
0351P ~ 01002
02- 10 ~ 1998
b sn ~ 10001
Audit ~ Trail
Euro ~ 00000
i sn ~ 00000
Audit ~ Trail
CAL. ~ 00000
Audit ~ Trail
Setup ~ 00000
Load ~ Cell
0.00000
Cal ~ Factr
1.00000
Rezro ~ Load
0.00000
DESCRIPTION
Total amount of EEPROM storage.
Amount of available EEPROM storage.
Copyright statement.
Firmware revision code.
Firmware date code.
Main circuit board serial number.
OIML (European) audit trail number.
Model 351 serial number.
Calibration audit trail number.
Setup audit trail number.
Current mV/V output of the load cell.
Calibration factor for the load cell.
Amount of weight (in default units)
zeroed through use of the key.
27
61103
61104
61105
61106
61107
61110
61112
61117
61120
61121
Zrtrc ~ Load
0.00000
CZero ~ 0P
Fine ~ Zero
1738
CGain ~ 50
Fine ~ Gain
1.00000
Zero ~ Adj25
73741
Zero ~ Ad100
-21813
AiN1 ~ NrOff
-11035
AiN8 ~ NrOff
-14800
Vre f~ NrOff
-12739
Amount of weight (in default units)
zeroed by the zero track feature since
was last pressed.
Coarse zero calculated during calibration.
Fine zero calculated during calibration.
Coarse gain calculated during calibration.
Fine gain calculated during calibration.
A/D compensation for coarse zero.
A/D non-ratio-metric offset
compensation.
A/D reference voltage compensation.
Display test. Press + to
62000
62001
62002
62003
Dsply ~ Test
8.8.8.8.8.8.
Spt 1 ~ Disbl
Spt 2 ~ Disbl
Spt 3 ~ Disbl
64000
Send ~ Setup
64100
64101
64102
LnCnt ~ 0
ErCnt ~ 0
1stEr ~ None!
65001
Deflt ~ All
65002
Deflt ~ -CAL
illuminate all segments. Continue
pressing + to cycle through
various patterns.
Allows setpoint status to be changed by
pressing + while viewing this
parameter. Requires that setup was
entered using the access code.
Transmits all setup information out the
communication port.
Received setup line count.
Received setup error count.
Parameter of the first setup receive error.
Default All. Sets all parameters to factory
default settings. Press + to
initiate default.
Same as above, except calibration is
retained.
28
A/D Calibration Procedure
The Model 351 Analog-to-Digital Converter (A/D) is calibrated at the factory to ensure a
stable, linear response to the load cell signal. This calibration procedure calculates
critical values that are permanently stored in parameters P61110 – P61121. The A/D
calibration should not be confused with the standard weight calibration. It should never
be necessary to recalibrate the A/D. However, if the values stored at parameters P61110
– P61121 appear to be reset to 0.00000 and/or 1.00000, then A/D recalibration is
necessary. Contact GSE Scale Systems or your local authorized GSE distributor for more
information on this procedure
29
Part Number
39-10-41433
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