Troubleshooting - KERN CPB 3K1M Service Manual

2.0 TROUBLESHOOTING

1. Unit does not
turn on
2. The scale
weighs but is
unstable
3. Scale shows
wrong weight
E4
4. An error " "
displays on
the screen
CPB-SH-e-0721
Check whether the scale is plugged into the power supply properly.
Check the operation of the charging circuit.
Check whether the battery is charged- LED should turn to green
from red.
Check the adapter output.
.
Air drafts or vibration or unstable table.
Pan rubbing against case or not installed correctly.
Scale not installed properly.
Improper connections on ADC circuit.
Scale not installed correctly.
Check the Calibration.
To check whether a part of product weighed is trapped between
the pan and the scale.
Incorrect adjustment of the mechanical stops.
Load cell damage.
Scale not installed properly.
Incorrect adjustment of the mechanical stops.
Factory calibration has been tampered with- check the ADC counts
and re-calibrate.
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