7
Operation
AC and DC Voltage
1. Set the rotary function switch to the
V
position.
2. Momentarily press the
MODE
button
to select AC or DC voltage.
“AC” or “DC
”
will appear on the LCD display.
3. Insert the black test lead into the
negative
COM
input jack and the
red test lead into the positive V input jack.
4. Touch the test probe tips in parallel to
the circuit under test. For DC measurements,
touch the red test probe to the positive side
of the circuit and the black test probe to the
negative side of the circuit.
5. Read the voltage on the LCD display.
1. Insert the black test lead into the negative
COM
input jack.
2. For current measurements up to 10A,
set the rotary function switch to the
10A
position
and insert the red test lead into the positive
10A
input jack.
3. For current measurements up to 400mA,
set the rotary function switch to the
mA
position
and insert the red test lead into the positive
mA
input jack.
4. For current measurements up to 4000
µA,
set the
rotary function switch to the
µA
position and insert
the red test lead into the positive
µA
input jack.
5. Momentarily press the
MODE
button to select
AC or DC current
. “AC”
or
“DC”
will appear on the
LCD display.
AC and DC Current Measurements
Observe all safety precautions when working on live voltages.
WARNING:
Observe all safety precautions when working on live voltages.
Do not measure current on conductors that exceed 1000V. Measurements on the
10A range should be limited to 30 seconds max. every 15 minutes.
WARNING:
V
LOAD
A
8
Operation
6. Remove power from the circuit under test, then open up the circuit at the
point where you wish to measure current.
7. Touch the test probe tips in series with the circuit being tested.
For DC measurements, touch the red test probe to the positive side of the
circuit and the black test probe to the negative side of the circuit.
8. Apply power to the circuit.
9. Read the current on the LCD display.
Resistance Measurements
1. Set the rotary function switch to the
Ω
CAP
position.
2. Press the MODE button until “M
Ω
”
appears on the LCD display.
3. Insert the black test lead into the negative
COM
input jack Insert the red test lead into
the positive
Ω
input jack.
4. Touch the test probe tips across the circuit
or component under test. It is best to
disconnect one side of the device under
test so the rest of the circuit will not
interfere with the resistance reading.
5. Read the resistance on the LCD display.
Never test resistance on a live circuit.
WARNING:
Ω
