Vetek Weighing AB
www.vetek.com
JWL Service Manual
May not be reproduced in any form without written permission
PAGE
1
I.
Contents
Assembly drawing
1
2
1 – 1
Explosive view (JWL)
2
1 – 2
List of parts (JWL)
3
1 – 3
Block diagram of electronic structure
4
1 – 4
Wiring diagram
5
2.
Troubleshooting procedure
6
2 – 1
Troubleshooting flow
6
2 – 2
Troubleshooting table
7
2 – 3
Confirmation of application environment
7
2 – 4
Simple inspection of electric circuit
8
2 – 5
Performance inspection
8
3.
Maintenance and setting
9
3 – 1
Maintenance flow
9
3 – 2
Model setting
9
4.
Setting of parameters
10
4 – 1
Parameter setting
10
4 – 2
Description of parameter values
11
4 – 3
Unit setting
13
5.
Linear calibration
17
6.
Single point calibration
19
7.
Error message list
21
8.
External interface
22
8 – 1
RTC function setting
22
8 – 2
Signal output pins of three-in-one board
24
8 – 3
Single option
24
8 – 4
Two options
34
8 – 5
RS232 output format
36
9.
Others
38
10.
Circuit diagram
41
10 – 1
CPU, peripheral and other circuits
41
10 – 2
LCD circuit
42
10 – 3
Applicable mainboard version and software version
42
