4.Instrument Layout
①METER MOVEMENT ZERO ADJUST ②TEST BUTTON
③SCALE PLATE ④INPUT CONNECTOR
⑤LIVE CIRCUIT LAMP ⑥OHMS ZERO ADJUST
⑦RANGE SELECTOR SWITCH ⑧
TEST PROBE (RED) LINE PROBE
⑨
TEST PROBE (BLACK) EARTH PROBE
⑩TEST PROBE CAP(RED)
⑪TEST PROBE CAP(BLACK) ⑫ALLIGATOR CLIP(BLACK)
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5.Preparation for Testing
5-1 Mechanical Zero Adjustment
Check that the pointer lines up with the middle of the mark on the scale correctly.
If not, adjust it by rotating the meter movement zero adjust with a screwdriver, etc.
5-2 Battery Voltage Check
①
Set the range selector switch to BATT. CHECK position.
② Press the test button.
③ Then the pointer deflects. Judge the battery status with BATT.GOOD
mark on the scale plate.
If the pointer does not move to BATT.GOOD mark, the batteries are
exhausted. Replace them with new batteries according to section 8 for
battery & fuse replacement.
5-3 Test Probe Connection
Insert the test probe fully into the terminal of the instrument.
Connect the earth clip of the test probe (black) to EARTH terminal and the
line probe (red) to LINE terminal of the connector terminal.
5-4 Test Probe Check
Set the range selector switch to 3Ω position and press and turn the Test
button to lock it down.
When the test probe are connected together, the pointer should move from
the ∞ position towards the 0 position on the blue ohms scale. If not, the
probe or fuse may be faulty.
Release the Test button after completion.
WARNING
When the test button is pressed with the range selector switch in the
megaohm range position,take care not to touch the tip of the test probe
where a high voltage is present in order to avoid possible shock hazard.
CAUTION
Do not keep the test button pressed or locked by turning it clockwise
during battery check.
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3132A-E/03-0803.8.610:33AMページ8
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