Sonel CMM-11 Manual De Uso página 48

5.2 Frequency measurement
To perform frequency measurement:
 set the rotary switch at
 press MODE button, until symbol Hz is shown on the display,
 connect black test lead to COM terminal, and red test lead to
VΩHz%
 contact the tips of test probes to the points of measurement,
 read the measurement result on the display.
5.3 Measurement % of duty cycle (pulse fill-
ing indicator)
To perform the measurement:
 set the rotary switch at
 press MODE button, until symbol % is shown on the display,
 connect black test lead to COM terminal, and red test lead to
VΩHz%
 contact the tips of test probes to the points of measurement,
 read the measurement result on the display.
5.4 DC voltage measurement
WARNING
 Electric shock hazard. The ends of measuring
probes, due to their length, may not reach the live
parts inside some network connections of low-
voltage electrical equipment, because the contacts
are arranged inside the sockets. In such a case, the
read-out will be 0 V with the simultaneous presence
of voltage in the socket.
 Before acknowledging the absence of voltage in the
socket make sure that the ends of the of the probe
touch the metal contacts inside the socket.
46
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mACAP terminal,
,
mACAP terminal,
CMM-11 – USER MANUAL