To Replace Pcb - KERN ECB Service Manual

7 To Replace PCB

1. Remove the bottom cover under the PCB of the scale.
2. Remove the four screws fixing the PCB and disconnect wires of keyboard, load cell
and battery/adaptor (backlight at ECB) from PCB. Replace a new PCB.
Connect wires of keyboard, load cell and battery/adaptor (backlight at ECB) to PCB
again. Assemble the screws fixing the PCB.
4. Perform internal calibration as described in section 3.
5. Assemble the bottom cover of the scale.
6. Check accuracy of scale at different weight.
ECB 10K10
weight
2.00 kg
5.00 kg
7.00 kg
10.00 kg
ECE 10K10
weight
2.00 kg
5.00 kg
7.00 kg
10.00 kg
7. Check other functions, such as Tare, Off and Auto-Off.
ECB/ECE-SH-e-0820
ECB 20K20
tolerance weight
0.02 kg 5.00 kg
0.02 kg 10.00 kg 0.04 kg 20.00 kg
0.02 kg 15.00 kg 0.04 kg 30.00 kg
0.02 kg 20.00 kg 0.04 kg 40.00 kg
ECE 20K20
tolerance weight
0.02 kg 5.00 kg
0.02 kg 10.00 kg 0.04 kg 20.00 kg
0.02 kg 15.00 kg 0.04 kg 30.00 kg
0.02 kg 20.00 kg 0.04 kg 40.00 kg
ECB 50K50
tolerance weight
0.04 kg 10.00 kg
50.00 kg
ECE 50K50
tolerance weight
0.04 kg 10.00 kg
50.00 kg
tolerance
0.10 kg
0.10 kg
0.10 kg
0.10 kg
0.10 kg
tolerance
0.10 kg
0.10 kg
0.10 kg
0.10 kg
0.10 kg
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