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8.8 CONTINUITY TEST
1. Connect the black test lead to the "
COM
" terminal and the red test lead to the
" " terminal.
2. Set the measurement function range switch to position. Then press the "
SEL
"
button until the symbol " " appears on the screen.
3. Connect the test leads across the circuit to be tested.
4. If the resistance is less than about 20
Ω
, the built-in buzzer will sound.
Note:
Before test, disconnect all power to the circuit to be tested and
discharged all capacitors thoroughly.
8.9 MEASURING FREQUENCY
1. Connect the black test lead to the "
COM
" terminal and the red test lead to the
" " terminal.
2. Set the measurement function range switch to
Hz %
position. Then press the "
SEL
"
button until "
Hz
" appears on the screen.
3. Connect the test leads across the source or circuit to be tested.
4. Read the reading on the screen.
Note:
1. For frequency measurements, the range exchange is automatic, and the measurement
range is: 0MHz - 10MHz.
2. The voltage of input signal should be between 1V rms and 20V rms. The higher the
frequency, the higher the required input voltage.
3. For measurements < 10Hz, the amplitude of input signal must be more than 2V rms.
8. OPERATING INSTRUCTIONS
8.7 MEASURING RESISTANCE (
Ω
)
1. Connect the black test lead to the "
COM
" terminal and the red test lead to the
" " terminal.
2. Set the measurement function range switch to position. Then press the "
SEL
"
button to select resistance function ( the symbols " " and " " capacitance
measurement unit do not appear on the screen ).
3. Connect the test leads across the object to be tested.
4. Read the reading on the screen.
Note:
1. For measurements > 1M
Ω
, the meter may take a few seconds to stabilize reading.
This is normal for high resistance measurements.
2. When the input is not connected, i.e. at open circuit, "
OL
" will be displayed as over
range indication.
3. Before measurement, disconnect all power to the circuit to be measured and
discharged all capacitors thoroughly.
V
Ω
mAHz
V
Ω
mAHz
V
Ω
mAHz
