Hioki ST5520-01 - Page 177

169
Troubleshooting
Others
Symptom Cause and solution Reference
The power does
not turn on.
The power may not be supplied.
• Check the power cord.
• Check that the facility breaker is on.
• Turn on the power switch (rear side).
-
The power voltage and frequency may not be correct.
Check the power rating. (100 V to 240 V, 50/60 Hz)
-
The key operation
cannot be
performed.
[LOCK] is displayed.
• When the key lock function is set to ON, disable the
function.
p. 65
• When the interlock function is set to ON, switch it to OFF.
To disable the interlock function, turn on the power while
holding down the MENU key and down key. Otherwise,
send the communication command,
:IO:ILOCk OFF
.
p. 106
• While a LOAD signal is input, the instrument enters the key
lock state, accepting no key operations.
p. 86
[RMT] is displayed.
Reset the remote.
p. 119
[LOCK] is displayed.
Release the interlock.
• How to release the interlock
Turn on the power while pressing the MENU + Down keys.
The interlock can also be released using the “
:IO:ILOCk
OFF
” communication command.
p. 106
The COMP lamp
does not turn on.
When the measured value is displayed, the upper or lower
limit value may not be set. Set the upper or lower limit value.
p. 44
When the measured value is not displayed, an appropriate
measurement range may not be automatically dened.
Extend the test duration.
p. 39
A contact check
error occurs.
The probe wires may be broken.
Check the probe using a tester.
-
The contact resistance between the measurement terminal
and contact check terminal may be high.
-
The equipment to be measured may not be in contact. Check
the wiring again.
-
10
9
8
7
6
5
4
3
2
1
Appx. Ind.