Table of Contents
Advertisement
(D) Diode Test
1. Set the selector switch to the "Ohm" position.
2. Connect the red test lead to "V/W" input jack and
the black one to the "COM" jack.
3. Set the range selector knob to the "
position.
4. If the semiconductor junction being measured is
connected to the circuit, turn off the power to the
circuit being tested and discharge all of the
capacitors.
5. Connect the test leads to the device and read
forward value on the digital display.
6. If the digital reads overrange (1), reverse the
lead connections.
The placement of the test leads when the
forward reading is displayed indicates the
orientation of the diode.
The red lead is positive and the black lead is
negative.
If overrange (1) is displayed with both lead
connections, the junction is open.
(E) Transistor h
Measurement
FE
1. Set the selector switch to "DC".
2. The transistor must be out of circuit. Set the
rotary/function switch to the h
3. Plug the emitter, base and collector leads of the
transistor into the correct holes in either the NPN
of the PNP transistor test socket, whichever is
appropriate for the transistor you are checking.
4. Read the h
(beta or DC current gain) on the
FE
display.
"
position.
FE
-31-
(F) Capacitance Measurement
1. Set the range selector knob to the "FARAD"
position.
2. Set the range selector knob to the desired
capacitance position.
3. Short the leads of the capacitor to be tested
together to insure that there is no charge on the
capacitor.
4. Insert the capacitor leads into the capacitor test
socket. Note that there are two groups of holes.
One lead must be inserted into one of group one,
and the other lead must be inserted into one of
the holes of group two.
5. Read the capacitance value on the digital
display.
Advertisement
Table of Contents
