- 12 -
Black
Red
Press
Ω
Key
Power-on
Fig. 6
5-3. Resistance Measurement (
Ω
)
●
Before starting the measurement, check the
Ω
function is selected.
●
Do not measure any voltage in resistance measurement function to avoid electric shock
hazard and serious damage to the instrument.
●
Detach test leads from the measuring circuit when changing the measurement function.
●
When measuring in-circuit resistance, turn off power to the circuit being measured and
discharge the all capacitors.
●
Read "3. SAFETY PRECAUTIONS" carefully to avoid electric shock hazard and serious
damage to the instrument.
Insert black test lead to COM terminal, and insert red test lead to V-
Ω
terminal.
Turn on the instrument and press
Ω
Key
.
If the resistor to be measured is connected in the circuit, turn off the circuit and discharge the
all capacitors.
Disconnect one side of the resistor to be measured and connect test leads to the both side.
Read the measurement value on LCD.
Detach the test lead from the circuit and turn off the instrument.
1.
2.
3.
4.
5.
6.
Available Functions :
Comparator, Range hold
WARNING
When measuring in 4M
Ω
range or higher, external noise might affect the measurement and
might drift the display. TO prevent this problem, we recommend to use the shielded wires
instead of the supplied test leads. Using the wire with BNC connector is also possible by using
"731 BNC conversion adapter" (option).
Important Note for Resistance Measurement
