Diode Tests; Capacitance Measurements - Sonel CMP-2000 Manual De Uso

4. Connect the test leads to the two points at which continuity is to
be tested. The buzzer will sound if the resistance is less than ap-
proximately 30Ω.
7.5

Diode tests

1. Set the Function/Range switch to the
Ω/
/ button twice to select the diode test.
2. Turn off power to the circuit under test. External voltage across
the components causes invalid readings.
3. Connect the red test lead to the "VΩ" jack and the black test lead
to the „COM" jack.
4. Touch probes to the diode. A forward-voltage drop is about 0.6V
(typical for a silicon diode).
5. Reverse probes. If the diode is good, "OL" is displayed. If the di-
ode is shorted, "0.00" or another number is displayed.
6. If the diode is open, "OL" is displayed in both directions.
7. Audible Indication: Less than 0.03V.
7.6

Capacitance measurements

1. Set the Function/Range switch to the "
2. Connect the red test lead to the "VΩ" jack and the black test lead
to the "COM" jack.
3. Discharge the capacitor before taking capacitance measure-
ments.
4. Touch the probes to the capacitor. Observe polarity when meas-
uring polarized capacitors.
5. Read the capacitance directly from the display.
6. The meter has a residual capacitance in the 6.6nF and 660nF
ranges, which is a normal status. Before taking measurements,
press the ZERO button to zero the residual capacitance.
7. When the capacitor to be tested is connected, if "dIS.C" symbol
indicates on LCD, it means there is voltage existing in the tested
capacitor and to be discharged before testing.
CMP-2000 – USER MANUAL
position. Use the
" position.
35