118
Troubleshooting
No. Trouble Conrm Possible causes → Solution Ref.
1-5
Adjusting buzzer
volume
The buzzer volume cannot be adjusted for this instrument. −
Concerning measurement items
No. Trouble Conrm Possible causes → Solution Ref.
2-1
The measurement
values have
deviated from the
expected values.
Zero adjustment
ON
Zero adjustment is not correct.
→ Adjust zero adjustment again by setting
the wiring shape of the probe to a shape
closer to the actual measuring state.
p. 26
OFF
The impact of the wiring shape has not
been removed.
→ Adjust zero adjustment again by setting
the wiring shape of the probe to a shape
closer to the actual measuring state.
p. 26
2-2
Measurement
values are not
stable.
The shape of the
measurement
probe
Varies
for each
mea-
suring
object.
The impact of the wiring shape has not
been removed.
→ Adjust zero adjustment again by setting
the wiring shape of the probe to a shape
closer to the actual measuring state.
p. 26
The
loop of
SENSE-
H and L
is large.
Electromagnetic eld affects the
measurement values.
→ Decrease the loop area formed by
SENSE-H and SENSE-L wiring.
p. A4
The
measurement
probe is
self fab-
ricated.
Measurement value changes depending
on the measurement position.
→ Measure after correctly adjusting the
probing positions.
→ Separate the probing positions of
SENSE and SOURCE as far as possible.
→ Use a probe with a point contact (Crown
type will result in multi-point contact, which
is poor in repeatability.)
p. A4
pro-
vided
probe
Measurement value changes depending
on the measurement position.
→ Measure after correctly adjusting the
probing positions.
−
Measuring object
Tem -
perature
is not
stable.
Characteristics have changed depending
on the temperature.
→ Measure after the temperature change
becomes small.
−
Heat
capacity
is small.
The measuring current is causing the
measuring object to heat up.
→ Reduce the range of the measurement
current.
−
Dis-
charge
capacity
is small.
Discharge is caused by DC load current.
→ Reduce the range of the measurement
current.
−
Temperature
sensor
is not
inserted
all the
way in.
Temperature sensor is not correctly
connected.
→ Insert the temperature sensor all the
way in.
−
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