Iwatsu SS-521 Instruction Manual page 64

Troubleshooting
Symptom
Demagnetization and
zero-adjustment do not adjustment cannot be performed in the
complete normally.
60
Check and/or remedy
Demagnetization and automatic zero-
following circumstances:
Repeat demagnetization and zero-
adjustment (p. 37) after implementing
the suggested remedy.
Circumstances
When the JAW
UNLOCKED LED
is lit up
When the
OVERLOAD LED
is flashing
When a current of
0.5 A rms or greater measured.
has been detected
If demagnetization and zero-adjustment
do not complete normally even
though no current is being measured,
the device is broken and should be
repaired.
Remedy
Lock the sensor
head. (Press the
opening lever
until the JAW
UNLOCKED
indicator turns
off.)
Disconnect the
device from the
conductor being