10
Troubleshooting
If the instrument fails to operate, check battery, leads, and replace battery
as necessary. Double-check operating procedure as described earlier in this
manual.
If the display locks up, press the SELECT button for approximately 6
seconds to reset the microprocessor.
If the instrument voltage-resistance input is subjected to high voltage
transient (mostly caused by lightning or switching surge to your system) by
accident or abnormal conditions of operation, the series fusible resistors
will react (become high impedance) like fuses to protect the user and the
instrument. Most measuring functions through this input will then be open
circuit. The series fusible resistors and the spark gaps should then be
replaced by qualified technician. Refer to the LIMITED WARRANTY section
for obtaining warranty or repairing service.
Battery Replacement
If the meter starts up with persistent resetting display or with low battery
icon
N
turns on, replace the battery. The meter uses one 3 V coin battery
IEC-CR2032.
To replace the battery
XW
WARNING
To avoid electrical shock, disconnect test leads from live
circuits before opening the case. Do not operate with open
case.
1.
Turn off the meter.
2.
Disconnect the test leads from live circuits.
3.
Loosen the screwon the case bottom.
4.
Lift the end of the case bottom nearest the input test leads until it
unsnaps from the case top. Replace the battery cover and tighten the
screw. Recycle the battery using approved methods.
5.
Replace the battery. Observe battery polarities with positive (+) faces up
(towards the case bottom). Replace the case bottom, and ensure that
the snap on the case top (near the LCD side) is engaged.
6.
Replace and tighten the screw.
