6
D. TESTING FOR CONTINUITY (See Figure 5)
To test for continuity, connect the Meter as follows:
1. Insert the red test lead into the input terminal and the black test lead into the
COM terminal.
2. Set the rotary switch to
Ω
and press
SELECT button to select the measurement mode.
3. The buzzer sounds continuously if the resistor to be tested is <10
Ω
.
The buzzer does not sound if the resistor to be tested is >35
Ω
.
NOTE:
• Open circuit voltage is around 0.45V
• When continuity testing has been completed, disconnect the connection between
the testing leads and the circuit under test, and remove the testing leads away from
the input terminals of the Meter.
E. TESTING DIODES (See Figure 6)
To test diodes, connect the Meter as follows:
1. Insert the red test lead into the input terminal and the black test lead
into the
COM terminal.
2. Set the rotary switch to
Ω
and press the
SELECT button to select measurement mode.
NOTE:
• In a circuit, a good diode should still produce a forward voltage drop reading of 0.5V to 0.8V;
however, the reverse voltage drop reading can vary depending on the resistance of other
pathways between the probe tips.
• Connect the test leads to the proper terminals as said above to avoid error display. The LCD
will display
OL indicating diode being tested is open or polarity is reversed. The unit of diode
is Volt (V), displaying that the forward voltage drop readings.
• When diode testing has been completed, disconnect the connection between the
testing leads and the circuit under test, and remove the testing leads from the input terminals
of the Meter.
F. CAPACITANCE MEASUREMENT (See Figure 7)
To measure capacitance, connect the Meter as follows:
1. Insert the red test lead into the input terminal and the black test lead
into the
COM terminal.
2. Set the rotary switch to
Ω
and press
SELECT button to select nF measurement mode.
• At that time, the Meter will display a fixed value as below which is the Meter internal
fixed distributed capacitance value. To ensure accuracy when measuring a small value
of capacitance, the tested value must subtract this value,
REL mode can help on that.
Around 10nF
3. Connect the test leads across with the object being measured.
The measured value shows on the display.
NOTE:
• It takes a longer time when the tested capacitor is more than 100μF
• The LCD displays
OL indicating the tested capacitor is shorted or it
exceeds the maximum range.
• When capacitance measurement has been completed, disconnect all connections
between the test leads, capacitor and the Meter.
G. FREQUENCY MEASUREMENT (See Figure 7)
To measure frequency, connect the Meter as follows:
1. Insert the red test lead into the input terminal and the black test lead
into the
COM terminal.
2. Set the rotary switch to
Hz%; frequency measurement (Hz) is default or press
Hz% button to select Hz measurement mode.
3. Connect the test leads across with the object being measured.
The measured value shows on the display.
4. If you need to measure duty cycle, press
Hz% button to select % measurement mode
NOTE:
• Input Amplitude: (DC electric level is zero)
When 10Hz~10MHz: 200mV
≤
a
≤
30Vrms
• When frequency measurement has been completed, disconnect the connection
between the testing leads and the circuit under test, and remove the testing leads
away from the input terminals of the Meter.
Figure 5
Figure 6
Figure 7
Figure 8
V
Ω
Hz
V
Ω
Hz
V
Ω
Hz
V
Ω
Hz
