Hioki IR3455, Instruction Manual

Page: 68 / 184

3.2 Measuring Insulation Resistance
62
3.2 Measuring Insulation
Resistance
Observe the following to avoid electric
shock and short circuits.
A. Do not use the
instrument if the
shutter is broken.
B. Check Table 1
before connecting test leads to the
instrument.
C. Check to see if the object under test is
not live or electrically charged using a
high-voltage detector or other similar
instrument, before connecting test
leads to it.
Table 1
Check item Result Action
Are the mark
and key lamp
off?
Off Connect test leads to the in-
strument and check C. above.
If safe to proceed, connect the
test leads to the object under
test.

Go to Table 2.
Blinking Press the key to stop
voltage generation.
Table 2
Check item Result Action
Are the mark
and key lamp
blinking?
Not blinking Measurement may be com-
menced
Blinking Immediately disconnect the
test leads from the object un-
der test and turn off power to
the object or discharge the
electric charge using a dis-
charge rod.
Shutter