Frequency and % Duty Cycle Measurements
1
.
Set the rotary function switch to
the
V HZ %
position.
2. To select Frequency or
%
Duty
Cycle, press the
MODE
button
until the “
Hz
” or “
%
”symbol
appears on the LCD display.
3. Insert the black test lead into
the
COM
input jack and the red
test lead into the
V
input jack.
4. Touch the test lead probes to the circuit under test.
5. Read the frequency or % duty cycle on the LCD display.
Low Z AC/DC Voltage
WARNING:
Observe all safety precautions
when working on live voltages. Do not
measure frequency or % duty cycle on circuits
that exceed 600V.
WARNING:
Observe all safety precautions
when working on live
voltages. Do not
connect to circuits that exceed 600V when
the meter is set to Low Z. Do not use low Z
when testing circuits that could be harmed
by this function’s low input impedance
Summary of Contents for MM650
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