Mastech MS8212A User Manual

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4. Using the Meter
4.1 Reading Hold
4.1.1 During measurement, press the “HOLD” button to
keep the current reading on the display. “D.H” will
appear of the display.Press “HOLD” again to return
to normal display.
4.2 Max Hold
4.2.1 During measurement, press the “MAX” button and
the display will show the maximum value recorded.
“M.H” will appear on the display.Press “MAX” again
to return to normal display.
4.3 Function Button
4.3.1 In voltage/current modes, press the “FUNC” button
to switch between AC/DC. At the resistance/diode/
continuity position, press “FUNC” to switch
between these modes.
4.4 Manual Range
4.4.1 In voltage/current/resistance modes, the default
range is “AUTO.” Press the “RAN” button to switch
to manual range. Each press of the button
increases the range, and returns to the lowest
range once pressed in the highest range.Hold
down “RAN” to return to auto-range.
4.5 Auto Power Off
4.5.1 The meter has an auto power off feature that will
turn the meter off automatically if left on.After
approx.14 minutes of non-use, the meter will
sound 5 short beeps and then 1 minute later the
meter will sound 1 long beep and turn itself off.
4.5.2 After auto power off has occurred, either move the
rotary switch or press the “FUNC”, “MAX” or “RAN”
buttons to turn the meter back on.
4.6 Preparing for Measurement
4.6.1 Select the desired function using the rotary switch.
If in manual mode, select the highest range first if
the value to be measured is unknown beforehand
and lower as needed.
4.6.2 When connecting the meter to a circuit, connect the
common lead first then the meter’s test probe.
4.6.3 If the battery voltage becomes <2.4V, the“ ”
symbol appears on the display.Replace the
batteries before making measurements.
4.5.3 If you hold down the “HOLD” button when turning
on the meter, this will disable the auto power off
function.The auto power off function will re-enable
after the meter is turned off again.
4.7 DC Voltage
4.7.1 Use the probe cover if making measurements on
category III installations.
4.7.2 Insert the black test lead into the COM jack.
4.7.3 Turn the rotary switch to the position.
4.7.4 The default mode is DC voltage. Press “RAN” to
switch to manual range if needed.
4.7.5 Connect the test probe and test lead across the
voltage source or load for measurement.
4.7.6 The display will show the measured value.Observe
the polarity of the test probe for DC voltage
measurements.

Mastech MS8212A Specifications

General

Brand	Mastech
Model	MS8212A
Category	Measuring Instruments
Language	English