GB
1
TOTAL VIEW ..........................................................................................................4
1.1
1.2
1.3
1.4
2
2.1
Block Diagram .............................................................................................. 6
2.2
Whole Wiring ................................................................................................ 7
3
TROUBLESHOOTING ............................................................................................8
3.1
3.2
3.3
Primary Checks .......................................................................................... 10
3.4
4
4.1
4.1.1
EW and EW-C Type............................................................................ 12
4.1.2
EG Type .............................................................................................. 13
4.2
Lock Switch ................................................................................................ 14
4.3
4.3.1
4.3.2
EW - 2200-12K................................................................................... 16
4.4
4.5
4.6
4.7
Linearity Adjustment................................................................................... 20
4.8
5
PARTS REPLACEMENTS....................................................................................25
5.1
5.1.1
EW 220-1200 ...................................................................................... 25
5.1.2
EW 2200-12K...................................................................................... 26
5.1.3
EW-C .................................................................................................. 27
5.1.4
EW 120-4 NM...................................................................................... 28
KERN EW · EW-C · EG (N)
Version 2.2
Service Manual
Electronic Precision Balances
- 2 -
EW_EW-C_EG_N-SH-e-0722