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SAFETY OPERATION MAINTENANCESETUP
Transistor (hFE) Measurements
Test transistors to ensure proper function.
1. Turn the Range Selector Switch
to the hFE position. Switch
the Multimeter ON.
2. Insert transistor pins into the
appropriate holes of the hFE
testing socket (NPN or PNP)
according to the EBC (Emitter,
Base, Collector) sequence.
3. The meter will show the approximate
hFE value at the test condition of
base current 10μA and Vce 3.2V.
4. Remove and store Transistor.
Diode Measurement
Test the voltage drop in diodes.
1. Turn the Range Selector Switch
to the Diode ( ) position.
2. Plug the red Test Lead into the V/Ω/Hz
Jack. Plug the black Test Lead into the
COM Jack. Switch the Multimeter ON.
3. Connect red probe to the anode of the
diode and the black to the cathode.
4. The approximate forward voltage
drop of the diode will be displayed
in mV. If the connection is
reversed, only “1” will be shown.
5. Remove and store Test Leads.
Continuity Measurement
Test continuity between two
points of a circuit.
1. Turn the Range Selector Switch
to the position. Switch
the Multimeter ON.
2. Connect Test Leads to two points
of the circuit. If continuity exists
(i.e., resistance is less than
50Ω), a buzzer will sound.
3. Remove and store Test Leads.
Temperature Measurement
1. Turn the Range Selector Switch
to the TEMP position. Switch the
Multimeter ON. Display will show
the current ambient temperature.
2. Plug a “K”-type thermocouple into
the temperature measuring socket.
3. Contact object to be measured
with the thermocouple probe.
Read measurement.
WARNING! Avoid electric shock.
Remove thermocouple before
switching between testing modes.
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