Insulation Resistance
1. Press
to turn on the instrument.
2. Press
to select 1000V, 500V, or 250V test voltage.
3. Insert the test leads in the corresponding input terminals of the
instrument.
4. Disconnect the circuit under test from power and isolate all eventual
loads.
5. Apply leads to wiring under test.
6A. To run a timed test:
• Hold
for 2s.
LOCK
• Then, use
to select time from 30 seconds to 10 minutes.
(Default is (S) spot test.)
• Press
to confi rm selection.
LOCK
• Press
to start the insulation testing.
TEST
The last megohm reading is displayed. Keep the leads on the test
points to allow the circuit to discharge.
6B. To run a continuous test:
• Press
and
at the same time. Lock is displayed and
TEST
LOCK
unit beeps.
• Press
again to stop continuous mode.
TEST
Red
Black
Warning: The
symbol on the display means that the
instrument is charging the circuit. When the
on the display, the instrument is discharging the circuit. Both of
these indicate a shock hazard is present.
7
Battery & Fuse Replacement
F-105 1A/600V
WARNING: To avoid electric shock, disconnect test leads before
removing battery cover.
WARNING: For continued protection against fi re, replace only
with fuse of the specifi ed voltage, current and rupture speed ratings.
P
N
PE
R
R
E
T
symbol is fl ashing
(6) AA
8