DCM266 GB
5
3. Operating instruction
3.1 Measuring current
1. Set the rotary switch at desired AC range position. The transformer jaws
pick up the AC current flowing through the conductor.
2. When only the figure " 1" displayed, it indicates overrange situation and the
higher range has to be selected.
3.2 Insulation test
(Option 500V insulation tester unit (not available in France and Benelux market))
1. Connect the insulation test unit V
Ω
, COM, EXT three bananaplugs to the
clamp meter V
Ω
, COM, EXT.
2. Set the rotary switch of the clamp meter at 2000M
Ω
position.
3. Set the insulation tester unit range switch to the 2000M
Ω
position.
4. Use the insulation tester unit of the test leads connect its L, E input connect
to being tested installation’s. ( Test installation’s must be power OFF.)
5. Set the insulation tester power switch to the ON position.
6. Depress the PUSH 500V push-push switch, the 500V on red LED lamp will
light. Clamp meter display reading is the insulation resistance value. If the
reading is below 19M
Ω
, change clamp meter and insulation tester unit to
20M
Ω
range, can be increase the accuracy.
7. If the insulation tester unit is not used, the power switch must shift to power
OFF position, and the test leads must leave the E, L input connect. That can
be increase battery life and prevent electrical shock hazard.
Wrong
Correct
