Major tech MT25 Інструкція з експлуатації - Сторінка 8

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Major tech MT25 Інструкція з експлуатації

5.6. AC/DC Voltage Measurements

! WARNING:

Observe all safety precautions when working on live circuits.

1. Set the rotatory function switch to the V

position.

2. Press the MODE button to select AC or DC voltage.

The AC " " or DC "

LCD display.

3. Insert the black test lead into the COM input jack

and the red test lead into the V input jack.

4. Touch the test lead probes to the circuit under test. If

measuring DC voltage, touch the red test lead to the

positive side of the circuit and the black test lead to

the negative side of the circuit.

5.7. Frequency And % Duty Cycle Measurements

! WARNING:

Observe all safety precautions when working on live voltages.

Do not measure frequency or duty cycle on circuits that exceed

600V.

1. Set the rotary function switch to the

2. Press the

MODE

duty cycle. The "

the LCD display.

3. Insert the black test lead into the

and the red test lead into the

4. Touch the test lead probes to the circuit under test.

5. Read the frequency or % duty cycle on the LCD

display.

5.8. AC Current Measurements

! WARNING:

Observe all safety precautions when working on live circuits. Do

not measure current on circuits that exceed 250V. Measurements

in the 10A range should be limited to 30 seconds maximum every

15 minutes. Max voltage 600V.

1. Set the rotary function switch to the 10A~ position.

2. Insert the black test lead into the COM input jack

and the red test lead into the 10A input jack.

3. Remove power from the circuit under test, then open

up the circuit at the point where you wish to

measure current.

4. Touch the test lead probes in series with the circuit

being measured.

5. Apply power to the circuit.

6. Read the current on the LCD display.

" symbol will appear on the

HZ %

button to select frequency or

" or "

" symbol will appear on

COM

input jack

input jack.

position.