Mastech MS8212A User Manual

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4.13 AC Current
Risk of electric shock. never measure current
where open circuit voltages exceed 250V to
prevent damage to the meter or personal injury.
WARNING
4.13.1 Use the probe cover if making measurements on
category III installations.
4.13.2 Insert the black test lead into the COM jack.
4.13.3 Turn the rotary switch to the position.
4.13.4 The default mode is DC current. Press “ ” to
switch to AC current. Press “RAN” to switch to
manual range if needed.
4.13.5 Connect the test probe and test lead in series with
the circuit under measurement.
4.13.6 The display will show the measured value.
Observe the polarity of the test probe for DC
current measurements.
Note:
- “OL” indicated an over-range situation in manual mode.
A higher range should be selected.
FUNC
mA
4.14 Logic Test
To prevent electric shock and damage to the meter
or personal injury, do not measure voltages that
may exceed 100V AC rms.
WARNING
4.14.1 Use the probe cover if making measurements on
category III installations.
4.14.2 Insert the black test lead into the COM jack.
4.14.3 Turn the rotary switch to the LOGIC position.
4.14.4 Connect the black test lead to the circuit’s ground
(-) terminal.
4.14.5 Hold down the “FUNC” button and touch the test
probe to the circuit for measurement. The LEDs
near the tip of the meter will indicate the current
logic level (red indicates “high” level or “1” and
green indicates “low” level or “0”).
4.14.6 The display will also show the logic level along
with the voltage measured(“ ”representing “high”
level and “ ” representing “low” level).
Note:
-
is less than 1.5V, the LED will be green.
- “FUNC” button must be held down during logic testing.
If the leads are disconnected or the voltage measured
4.15 Non-Contact Voltage (NCV)
4.15.1 With the rotary switch in any position except OFF,
hold down the “NCV” button.
4.15.2 Move the tip of the meter near the voltage source
or conductor.If the voltage detected is greater
than 110VAC, the buzzer will beep and the NCV
indicator near the tip of the meter will flash.
Note:
- Voltage may still exist even with no indication given off
by the meter. Do not solely rely on NCV detection to
determine the presence of voltage. Socket design,
insulation thickness and other factors may affect
readings.
- The NCV indicator LED may flash while measuring
DC/AC voltage due to the presence of induced voltage.
- External environmental interference from additional
sources can falsely trigger NCV detection.

Mastech MS8212A Specifications

General

Brand	Mastech
Model	MS8212A
Category	Measuring Instruments
Language	English