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During Use; General Description - Mastech MAS830L Operator's Instruction Manual

Portable 31/2 digital multimeter
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DURING USE

Never exceed the protection limit values indicated in
specifications for each range of measurement.
When the meter is linked to measurement circuit, do not
touch unused terminals.
Never use the meter to measure voltages that might exceed
600V above earth ground in categoryⅡ installations.
When the value scale to be measured is unknown beforehand,
set the range selector at the highest position.
Before rotating the range selector to change functions,
disconnect test leads from the circuit under test.
When carrying out measurements on TV or switching power
circuits always remember that there may be high amplitude
voltages pulses at test points, which can damage the meter.
Always is careful when working with voltages above 60V dc or
30V ac rms. Keep fingers behind the probe barriers while
measuring.
Before attempting to insert transistors for testing, always be
sure that test leads have been disconnected from any
measurement circuits.
Components should not be connected to the hFE socket when
making voltage measurements with test leads.
Never perform resistance measurements on live circuits.

GENERAL DESCRIPTION

The meter is a
portable
31/2 digital multimeter for measuring DC and AC voltage, DC current,
Resistance, Diode, Transistor and Continuity Test with battery operated.
The Back light of display is optional.
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FRONT PANEL

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Mas830