Major tech MT 770 Manual de instruções - Página 11

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4.2. AC/DC Voltage Measurements

1. Insert the black test lead into the negative COM terminal and the red

test lead into the positive V terminal.

2. Set the function switch to the ACV or DCV position.

3. Connect the test leads in parallel to the circuit under test.

4. Read the voltage measurement on the LCD display.

4.3. Resistance Measurements

1. Insert the black test lead into the negative COM terminal and the red

test lead into the positive terminal.

2. Set the function switch to the Ω

3. Touch the test probe tips across the circuit or component under test. It is

best to disconnect one side of the device under test so the rest of the

circuit will not interfere with the resistance reading.

4. For Resistance tests, read the resistance on the LCD display.

4.4. Diode and Continuity Measurements

1. Insert the black test lead banana plug into the negative COM jack and

the red test lead banana plug into the positive diode jack.

2. Turn the rotary switch to the Ω

3. Press the MODE / INRUSH button until "

4. Touch the test probes to the diode under test. Forward voltage will

indicate 0.4V to 0.7V. Reverse voltage will indicate "0L". Shorted devices

will indicate near 0mV and an open device will indicate "0L" in both

polarities.

Probe

For Continuity tests, if the resistance is < 50Ω, a tone will sound.

Red

Black

Probe

Forward Test

CAP position.

" appears in the display.

Black

Red

Probe

Reverse Test