HT instruments HT9012 - Manual (Page 13)

HT9012
EN - 12
4.3.5 Continuity test and Diode test
CAUTION
Before taking any in circuit resistance measurement or diode test, remove
power from the circuit to be tested and discharge all the capacitors.
Fig. 7: Taking continuity test and diode test
1. Rotate the switch on
Ω position
2. Pushing MODE key and select continuity test. The symbol is shown at display
3. Insert the red test lead plug into V Ω jack and the black test lead plug into COM
jack and perform continuity test on the object on test (see Fig. 7 – left side). Buzzer
emits sound if the measured resistance value is less about 100
Ω
4. Pushing MODE key and select diode test. The “ ” symbol is shown at display
5. Connect the red test leads to the anode of diode on test and the black test lead on the
cathode ones (see Fig. 7 – right side)
6. Displayed values within 0.4V and 0.7V (direct junction) and “OL” (reverse junction) are
correspondent to a correct result. A “0mV” value means a shorted device while a “OL”
indication in both side means a broken device