Prokit's Industries MT-2018 - Manual (Page 7)

6
OPERATION PROCEDURES
DC Voltage Measurement
WARNING: WITH EXTREME CARE WHEN MAKING
MEASUREMENTS FOR HUGH VOLTAGE, AND DO NOT
TOUCH TERMINAL OR PROBE ENDS.
1. Set the selector switch to the appropriate DCV range to be
used.
2. Connect the BLACK test lead to the “-COM” jack and the RED
test lead to the “+” jack.
3. If you know the polarity of the circuit to be tested, connect the
black probe to the negative side.
4. If you don’t know the polarity, connect the probes to opposite
sides of the circuit and watch the pointer. If it goes to the left,
reverse the probes. The RED probe will be connected to the
positive.
5. Check the needle position and the get the reading on V.A scale.
AC Voltage Measurement
WARNING: WITH EXTREME CARE WHEN MAKING
MEASUREMENTS FOR HUGH VOLTAGE, AND DO NOT
TOUCH TERMINAL OR PROBE ENDS.
1. Set the selector switch to the appropriate ACV range to be used
and connect the test leads across the circuit or load under
measurement. (Polarity of the test probes is unimportant on
ACV test.)
2. Connect the BLACK test lead to the “-COM” jack and the RED
test lead to the“+” jack.