22
between 600mA and 20A, connect the red test lead to the
20A input socket.
3) Disconnect the circuit under test. Connect the black
test lead to the disconnected (lower voltage) end of the
circuit, and connect the red test lead to the other end of
the disconnected circuit (which has a higher voltage).
4) Connect the circuit power, and then read the displayed
readings. If the display only shows "OL", this means that
the input exceeds the selected range and the rotary switch
should be placed in a higher range.
4.9 Resistance Measurement
Warning
Risk of electric shock.
To avoid damage to the meter or the device
under test, all power to the circuit under test
should be cut off and all high voltage capacitors
fully discharged before measuring the resistance.
Resistance is measured in ohms
（
Ω
）
The meter’s resistance range is :600.0
Ω
、
6.000k
Ω
、
60.00k
Ω
、
600.0k
Ω
、
6.000M
Ω
、
60.00M
Ω
。
Resistance measurement
：
1) Turn the rotary switch to the proper position.
2
）
Insert the black test lead into the
COM
jack
，
and the
red test lead into the jack.
3) Use the other end of the test pen to measure the
resistance of the circuit under test.
