CMM-60
– USER MANUAL
53
contact the tips of test probes to the points of measurement; the best solution is to disconnect
one side of the tested element, to prevent the remaining part of the circuit interfere with the read-
out of the resistance value,
read the measurement result on the display,
after completing the measurements, remove test leads from the terminals of the meter.
6.6 Circuit continuity test
WARNING:
Do not perform measurements on the circuit under the voltage. Before the measurement dis-
connect the power and discharge capacitors.
To perform the continuity test:
set the rotary switch at
Ω
CAP
,
connect
black
test lead to
COM
terminal and
red
test lead to
V
Ω
CAP Hz% Temp
terminal,
select
MENU
and use
arrows
and
F1 F2 F3 F4
buttons to set
Beeper
,
contact the tips of test probes to the points of measurement,
read the measurement result on the display; the beep will be activated when resistance values
are below approx.
25 Ω
. If the circuit is open, the display will show
OL
,
after completing the measurements, remove test leads from the terminals of the meter.
6.7 Diode test
WARNING:
Do not perform measurements on the circuit under the voltage. Before the measurement dis-
connect the power and discharge capacitors. Do not test the diode under voltage.
To perform the diode test:
set the rotary switch at
Ω
CAP
,
connect
black
test lead to
COM
terminal and
red
test lead to
V
Ω
CAP Hz% Temp
terminal,
select
MENU
and use
arrows
and
F1 F2 F3 F4
buttons to set
Diode
,
contact the pins of test probes to the diode: red test lead should contact the anode and the black
should contact cathode,
read the test result on the display - the forward voltage is displayed.
For a typical silicon rectifier diode, it is approx. 0.7 V, and for a germanium diode it is approx. 0.3
V
For LEDs with a low power, typical voltage value is
in the range of 1.2…5.0 V depending on the
colour.
If the diode is polarized in the reverse direction, or there is a break in the circuit, the display will
show
OL
.
When the diode is shorted, the meter will show a value near
0 V
.
after completing the measurements, remove test leads from the terminals of the meter.
Summary of Contents for CMM-60
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