Primary Checks - KERN EW Service Manual

Symptoms
Corner error is too much.
Display suddenly
disappeared in operation.
b-Err
appears.
d-Err
appears.
I-Err
appears.
2-Err
appears.

3.3 Primary Checks

1. Is any wind around the site?
Is any oscillation? Is the working table stable.
2. Is anything under the pan base or the weighing pan?
3. Is the weighing pan right one.
4. Is AC adaptor connected both with the scale and with the scale and with the
outlet properly?
5. Is battery option charged sufficiently?
1. Mechanism unit is defective, such as Roberval
plate (Spring) has been bent or twisted.
2. Pan base touches other parts.
1. Built-in battery (option) has been consumed.
2. AJDP board is defective.
3. AC adaptor is defective.
1. AJDP board is defective.
2. Coefficient memories ( address data) have
changed by noises or static electricity. Adjust
linearity.
1. Address data related to determine the capacity
has been destroyed. Contact the shipper.
2. AJDP board is defective.
1. The calibration weight is less than ½ F.S.
1. The data error exceeds 0.4%. Or perhaps the
scale may be defective. Contact the shipper.
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Causes & Remedy