Initial Inspection - KERN PNJ Service Manual

Corner error
is too much
Display
disappears
during
measurement.
Display shows
"b-Err"
Display shows
"d-Err"
Display shows
"L-Err"
Display shows
"I-Err"
Display shows
"2-Err"

4.1 Initial inspection

1. Check that no wind or vibration affects the scale.
2. Check that the pan base and the weighing pan are properly installed.
3. Check that there are no foreign objects below the weighing pan (pan base).
4. Check that a regular weighing pan is used.
5. Check that the stand on which the scale is placed is stable.
6. Check that the scale is level.
7. Check that an AC adapter is connected.
8. Check that the battery is sufficiently charged (in the battery option).
- 9 -
1. Mechanism failure
2. The weighing pan (pan base) is
binding on something.
1. AJDP circuit board failure
2. AC adapter failure
1. AJDP circuit board failure.
2. Coefficient memories (address data)
have changed by noises or static
electricity
1. Sample weight is too light.
(Number of weights; in the %
(percentage weighing) mode)
1. Balance weight was lighter
than 50% of capacity during
span calibration.
1. Error exceeding 1%
occurring in span calibration
1. Replace the
mechanical unit.
2. Check
installation of the
weighing pan
(pan base).
1. Replace the AJDP
circuit board.
2. Replace the AC
adapter.
1. Replace the AJDP
circuit board.
2. Check the
address data.
1. Check the sample
weight.
1. Check the balance
weight.
1. Check the error.
PNJ_PNS-SH-e-2011