Diode Test; Continuity Check; Capacitance Measurement - RIDGID micro CM-100 Mode D'emploi

1. Set the function switch to
the "V Ω CAP TEMP Hz" terminal.
2. Insert the black test lead plug into the "COM" terminal and the red test lead plug into
3. Touch the test probe tips across the circuit or part under test. It is good practice to
disconnect one side of the part under test so the rest of the circuit will not interfere
with the resistance reading.
4. Read the resistance in the display. The display will indicate the proper value with
decimal point and symbol.
5. After resistance test, the capacitive circuits must be discharged. This will help pro-
tect against electric shock.

Diode Test

To reduce the risk of electric shock, do not test any diode that has volt-
WARNING
age on it.
1. Set the function switch to
2. The meter automatically defaults to Resistance range. Press
lect the diode test range.
the the "V Ω CAP TEMP Hz" terminal.
3. Insert the black test lead plug into the "COM" terminal and the red test lead plug into
4. Touch the test probe tips to the diode or semiconductor junction to test. Note the
meter reading.
5. Reverse the probe polarity by switching probe position. Note this reading.
6. The diode or junction can be evaluated as follows:
• If one reading shows a value and the other reading shows OL, the diode is good.
• If both readings show OL, the device is open.
• If both readings are very small or 0, the device is shorted.
NOTE! The value indicated in the display during the diode check is the forward voltage.

Continuity Check

To reduce risk of electric shock, never measure continuity on circuits or
WARNING
wires that have voltage on them.
1. Set the function switch to
2. The meter automatically defaults to Resistance range. Press
select the continuity test range.
Ω CAP TEMP Hz" terminal.
3. Insert black test lead plug into the "COM" terminal and red test lead plug into the "V
4. Check meter operation by touching probe tips together. An audible signal should
sound.
6. If the resistance is less than approximately 35 Ω, an audible signal will sound. The
5. Touch the test probe tips to the circuit or wire to check.
display will also show the actual resistance.

Capacitance Measurement

To reduce risk of electric shock, disconnect all power (remove batteries,
WARNING
micro CM-100 Digital Clamp Meter
position.
position.
position.
button once to se-
button twice to
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