GENERAL SPECIFICATIONS
Calibration is guaranteed for 1 year.
OPERATING INSTRUCTIONS
WARNING
WARNING
To avoid electrical shock hazard and/or damage of the instrument, do not measure voltages that
might exceed 500V above earth ground.
WARNING
Before the use of instrument, inspect test leads, connectors and probes for cracks, breaks, or crazes
in the insulation.
DC & AC VOLTAGE MEASUREMENT
1. Connect the red test lead to the to “V
Ω
mA” input, and the black test lead into the “
COM” input.
2. Set the
RANGE switch to the desired VOLTAGE position, if the voltage to be measured is not known beforehand,
set the
RANGE switch to the highest range to protect the meter. Then reduce the range until a satisfactory reading
is obtained.
3. Connect test leads to device or circuit being measured.
4. The reading will appear on the digital display along with the voltage polarity.
DC CURRENT MEASUREMENT
1. Connect the red test lead to the “V
Ω
mA” input, and the black test lead to the “
COM”.
*Note: Connect the red test lead to the “10A” input for measurements between 200mA and 10A.
2. Set the
RANGE switch to the desired DC Amperage position.
3. Connect the test leads in-series with the circuit to be measured.
4. The reading will appear on the digital display.
*Note: The “10A” function is designed for intermittent use only. Testing should not last more than 15 seconds at a time
to protect the user and the meter.
RESISTANCE MEASUREMENT
1. Insert the red test lead into the “V
Ω
mA” input and the black test lead into the “
COM” input.
2. Set the
RANGE switch to the desired OHM position.
3. If the resistance being measured is connected to a circuit, turn off power and discharge all capacitors before
measurement.
*Note: If the resistance being measured is connected to a circuit,
TURN OFF the power and discharge all capacitors
before making any measurement.
4. Connect test leads to circuit being measured.
5. The resistance value will be appear on the digital display.
DIODE MEASUREMENT
1. Insert the red test lead into the “V
Ω
mA” input and the black test lead into the “
COM” input.
2. Set the
RANGE switch to the
“
A
A
400A
400A
”
.
3. Connect the
RED test lead to the anode of the diode and the BLACK test lead to the cathode.
4. The forward voltage drop in mV will be displayed. If the diode is reversed, a “1” will be shown.
TRANSISTOR hFE MEASUREMENT
1. Set the
RANGE switch to the
A
A
400A
400A
position.
2. Determine whether the transistor is PNP of NPN type and locate the emitter base and collector leads. Insert the
leads into the proper holes of the
SOCKET on the front panel.
3. The meter will display the approximate value at the condition of the base current 10μA and V
CE
2.8V.
BACK-LIGHT FUNCTION
This meter has back-light function, you can push the
LIGHT button to light the back-light LED.
3
A
A
400A
400A
A
A
400A
400A