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4. Troubleshooting
Symptom
Possible Causes
Remedy
Unstable readings
1. Battery is low
2. Sensor is faulty.
Replace battery.
Replace sensor.
Display shows just
“
1
.
” or “
–1
.
”
1. Meter has over-ranged.
Select high range using
RANGE
switch.
Meter will not turn
on.
Battery is exhausted.
Replace the battery.