Name: UNI-T UT39A
Brand: UNI-T
Rating: 5 (1 reviews)

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4. Break the current path to be tested. Connect the red

test lead to the more positive side of the break and

the black test lead to the more negative side of the

break.

5. Turn on power to the circuit.

The measured value shows on the display.

To measure current, do the following:

1. Turn off power to the circuit. Discharge all high-voltage

capacitors.

2. Insert the red test lead into the mA or 20A or 10A

terminal and the black test lead into the COM terminal.

When measuring current at 200mA below, insert the

red test lead into mA terminal while measuring current

200mA or above, insert the red test lead into 10A or

20A terminal

3. Set the rotary switch to an appropriate measurement

position in A range.

Note

If the value of current to be measured is unknown, use

the maximum measurement position (20A) and 20A

terminal or (10A) and 10A terminal, and reduce the

range step by step until a satisfactory reading is

obtained.

Replace appropriate rating fuse when the fuse is burnt.

Fuse specification: 0.315A. 250V fast type fuse,

φ 5 x 20mm

UT39A/UT39B - At 10A Range: For continuous

measurement 10 seconds and interval not less than

15 minutes.

UT39C – At 20A Range: For continuous measurement

10 seconds and interval not less than 15 minutes

When current measurement has been completed,

disconnect the connection between the testing leads

and the circuit under test.

Model UT39A/B/C: OPERATING MANUAL

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UNI-T UT39A Specifications

General