APPA 76, Инструкция по эксплуатации

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7. Capacitors (and particularly electrolytic capacitors) are often subject to wide tolerances. Hence the values
measured are often up to 100% more than the nominal values but they are seldom drastically below them.
8. The tester uses an a.c. voltage method of measurement which is less subject to errors than the d.c. ramp
voltage method when the capacitors being measured have high leakage currents, which electrolytic capacitors
often do.
3.2 Measuring resistance
1. Switch on tester (move on/off switch to "ON" position).
2. Turn rotary switch to the desired range.
3. Plug the black test lead into the
Ω
"—" input terminal and the red lead into the
Ω
"+" input terminal.
4. Apply the probes to the points between which the resistance is to be measured and read off the value shown.
3.3 Measuring transistor hFE
1. Switch on tester (move on/off switch to "ON" position).
2. Turn rotary switch to the desired hFE range (PNP or NPN).
3. Connect the transistor straight into the transistor socket. The holes of the socket are marked E, B and C for
emitter, base and collector.
4. Read the hFE (d.c. gain) value straight off the display.