Test Products International 183 - Manual (Page 24)

23 22
g. Continuity Buzzer
WARNING!
Do not attempt to make continuity measurements
with circuit energized.
Instrument set-up:
FUNCTION BLACK RED
TEST LEAD TEST LEAD
COM V Ω Hz
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug the red test lead into the V
Ω Hz input
jack.
4. Set the rotary switch to the function.
5. Press the gray push button to activate the con-
tinuity buzzer.
6. Connect test leads to circuit to be measured.
7. Listen for the buzzer to confirm continuity.
f. Measuring Diodes
CAUTION!
Do not attempt to make diode measurements with
circuit energized. The only way to accurately test
a diode is to remove it completely from the
circuit before attempting to measure it.
Instrument set-up:
FUNCTION BLACK RED MINIMUM MAXIMUM
TEST LEAD TEST LEAD READING READING
COM V
Ω Hz
0.001V 2.000V
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into V
Ω Hz input jack.
4. Set the rotary switch to the function.
5. Connect the black test lead to the banded end
of the diode and the red test lead to the non-
banded end of the diode.
6. Reading on the display should be between 0.5
and 0.8 volts.
7. Reverse test lead connections in 5 above.
8. Reading on the display should be OFL
(Overload).
NOTE: If diode reads 0 in both directions, diode
is shorted. If diode reads OFL in both directions,
diode is open.