Omega HHM17 User Manual page 12

Resistance and Continuity Measurements
1. Set the Function/Range switch to the desired resistance range or continuity
position.
2. Remove power from the equipment under test.
3. Connect the red test lead to the "VW " jack and the black test lead to the
"COM" jack.
4. Touch the probes to the test points. In ohms, the value indicated in the
display is the measured value of resistance.
5. Press the Blue Alternate Function button to select Audible Continuity.In
continuity test, the beeper sounds continuously, if the resistance is less than
40W .
WARNING
The accuracy of the functions might be slightly affected, when exposed to
a radiated electromagnetic field environment, eg, radio, telephone or
similar.
Diode Tests
1. Connect the red test lead to the "VW " jack and the black test lead to the
"COM" jack.
2. Set the Function/Range switch to the "
3. Turn off power to the circuit under test.
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, display will be between 2.800V and
3.200V. If the diode is shorted, ".000" or another number is displayed.
6. If the diode is open, display will be between 2.800V and 3.200V, in both
directions.
" position.
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