
6. Trouble Shooting
Defective Symptom
Possible Cause
Recommended remedy
Power does not turn on
Shortage of battery capacitance
Replace the batteries.
Contact failure at Battery contact Replace the battery contact.
Inaccurate measurement is
caused.
Shortage of battery capacitance
Replace the batteries.
Defect of adjustment
Readjustment
Defect of circuit components
Replace the PCB.
Defect of circuit sensor module
Replace the sensor module.
Display value changes over
20digits at zero point , when
repeating the JAW open and
close,
Defect of circuit sensor module
Replace the sensor module.
Lack of the segment, or
abnormal lighting,
Defect of circuit components
Replace the PCB.
LCD backlight or LED light is
not lit
Defect of circuit components
Replace the PCB.
7. List of Spare parts
No.
Spare parts No.
Parts Name
Qty.
Remark
18
9000018895 Lamp Button 2231-20 UL
1
-
17
9000019044 Lamp Button Bracket 2231-20
1
-
2
9000018894
Control Button 2231-20 UL
1
-
1
9000018890 Enclosure-Front Case 2231-20UL
1
-
5,6
122310200A 2231-20 PCB MAIN
1
with LCD and one screw
8
9000018891 Enclosure-Rear Case 2231-20 UL
1
-
11
9000014595 Screw For Bottom Case
6
-
12,13
9000018892 Battery Door 2231-20 UL
1
with two screws
16
122310100A 2231-20 Clamp and Wire
1
with wire clip
3,4
9000018896 Control Button Support 2231-20
1
with two screws
14
9000017226 Battery maxell LR6(GD)E 4PT
2
-
Содержание 2231-20 4-20
Страница 4: ... Fig 1 Construction Drawing ...