Operation Manual

Chapter II
MX 650 / MX 655
26
4.8. Measurement of the voltage frequency
600V
1000
750
PEAK
1mS
400
40
A
REL
Hz
1000 V
600 1000
HOLD
600
Set the switch to "Hz".
Connect the red test lead to
the "+" terminal and the black
test lead to the "COM"
terminal.
Place the touch prods in
contact with the points whose
frequency is to be measured.
Read the result on the display.
4
.9. Measurement of the current frequency
1000
750
600V
PEAK
1mS
400
40
A
REL
Hz
1000 V
600 1000
HOLD
600
Set the switch to "Hz".
Open the clamp by pressing the
trigger.
Encircle the conductor and
close the jaws correctly by
releasing the trigger.
Read the result on the display.
Note: For safety reasons,
disconnect the clamp measuring
leads before measuring current
frequency. The clamp should
encircle only one conductor,
otherwise the measurement
result may be incorrect.
Note: To measure frequency, either the input terminals
(voltage) or the clamp jaws (current) can be used, but the
two sources should never be used at the same time.