5
•
A continuous beep tone indicates a complete circuit.
1. Turn off power to the circuit being measured.
2. Discharge any capacitors that may influence the reading.
3. Connect the test probes across the resistance or two measurement
nodes.
4. Listen for the tone that indicates continuity (< 120
Ω
).
•
Press the SELECT button momentarily AGAIN to select Diode test
function. The annunciator
G
appears on the display. The reading
shows the approximate voltage drop across the test leads. Normal
forward voltage drop (forward biased) for a good silicon diode is
between 0.400 V to 0.900 V. A reading higher than that indicates a leaky
diode (defective). A zero reading indicates a shorted diode (defective).
OL indicates an open diode (defective). Reverse the test leads
connections (reverse biased) across the diode. The digital display shows
OL if the diode is good. Any other readings indicate the diode is
defective.
•
Press the SELECT button momentarily AGAIN to select the Capacitance
function.
1. Turn off power to the circuit being measured.
2. Discharge the capacitor using a 100 kW resistor.
3. Free at least one end of the capacitor from the circuit.
4. Connect the test probes across the capacitor.
5. Read the display.
Frequency Function
Turn the rotary switch to the Hz position to select the frequency function.
This function is set only at the highest input sensitivity mainly for
measuring small electronic signals below 20 V ac rms.
1. Connect the test probes to the signal source.
2. Read the display.
