7
OPERATION - DC CURRENT MEASUREMENT
•
Connect the red test lead to the “VΩmA” jack and the black test lead to the “COM”
jack.
•
Note: for measurements between 200mA and 10A, remove the red lead to the
“10A” jack.
•
Set the rotary switch at the desired DCA position.
•
Open the circuit in which the current is to be measured and connect the test leads
in series with the circuit.
•
Read the current value on the LCD along with the polarity of th red lead
connection.
OPERATION - AC VOLTAGE MEASUREMENT
•
Connect the red test lead to the “VΩmA” jack and the black test lead to the “COM”
jack.
•
Set the rotary switch at the desired ACV position.
•
Connect test leads across the source or load being measured.
•
Read the voltage on the LCD.
OPERATION - RESISTANCE MEASUREMENT
•
Connect the red test lead to the “VΩmA” jack and the black test lead to the “COM”
jack.
•
Note: the polarity of the red lead is positive.
•
Set the rotary switch at the desired “Ω” range position.
•
Connect the test leads across the resistor to be measured and read the LCD.
•
If the resistance being measured is connected to a circuit, turn off the power and
discharge all capacitors before applying test probes.
OPERATION - DIODE TEST
•
Connect the red test lead to the “VΩmA” jack and the black test lead to the “COM”
jack.
•
Note: the polarity of the red lead is positive.
•
Set the rotary switch at the “ ” position.
•
Connect the red test lead to the anode of the diode to be tested and the black test
lead to the cathode of the diode.
•
The approximate forward voltage drop of the diode will be displayed. If the
connection is reversed, only figure “1” will be shown.
OPERATION - TRANSISTOR TEST
•
Set the rotary switch at the “hFE” position.
•
Determine whether the transistor under testing is NPN or PNP and locate the
emitter, base and collector leads. Insert the leads into the proper holes of the hFE
socket on the front panel.
•
Read the approximate hFE value and the test condition of the base current 10µA
and Vce 3V.
