Operating Instruction; Voltage Measuring - Mastech MAS345 Operator's Instruction Manual

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3. OPERATING INSTRUCTION

3.1 VOLTAGE MEASURING

1. Connect the black test lead to the COM jack and the red test lead to the
2. V/Ωjack.
Set the function switch at V range and connect test leads across the source or
3. load under measurement.
Push the DC/AC button to select DCV or ACV measuring mode. (Push the R-H
4. button to select manual range.)
Read LCD display. The polarity of red test lead connection will be indicated
when making a DC measurement.
3.2 CURRENT MEASURING