Kyoritsu 3131A User Manual download pdf (Page 10)

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5-2 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.

5-3 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.

5-4 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.

5-5 Test Probe Check

Set the range selector switch to xΩ 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 ０position on the

blue continuity scale. If not, the probe or fuse may be faulty. Release the

Test button after completion.

CAUTION

Do not keep the test button pressed or locked by turning it clockwise during

battery check.

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Kyoritsu 3131A User Manual Page 10