Major tech MT1877IV Manuale di istruzioni - Pagina 6

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3.3. DATA HOLD BUTTON

The Data Hold function allows the meter to "freeze" a measurement for

later reference.

1. Press the Data Hold button to "freeze" the reading on the indicator. The

indicator "HOLD" will be appear in the display.

2. Press the DATA HOLD button to return to normal operation.

When the meter is first turned on, it automatically goes into Auto Ranging.

This automatically selects the best range for the measurements being

made and is generally the best mode for most measurements. For

measurement situations requiring that a range be manually selected,

perform the following:

1. Press the RANGE button. The "Auto Range" display indicator will turn

off, The "Manual Range" display indicator will turn on

2. Press the RANGE button to step through the available ranges until you

select the range you want.

3. Press and hold the RANGE button for 2 seconds to exit the Manual

Ranging mode and return to Auto Ranging.

REL Key is the relative value measurement key that acts with trigger.

Except for Hz/Duty, Diode and continuity, all other functions can do the

relative value measurement.

HZ/Duty is the Frequency/Duty cycle select key that acts with trigger. In

frequency measurement mode, press the key to select frequency or duty

cycle measurement mode; in AC/DC Voltage or AC/DC Current mode, press

the key to proceed to Voltage/Frequency/Duty Cycle or Current/

Frequency/Duty cycle measurement mode select HZ/Duty button.

3.7. DC/AC VOLTAGE MEASUREMENT

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 VAC or VOE position.

3. Use the MODE button to select AC or DC Voltage

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

5. Read the voltage measurement on the LCD display