3.3 MEASURING VOLTAGE
1. Connect the black test lead to the COM jack and the red test lead to the V
Ω
jack.
2. Set the rotary switch at the desired V
or V
~
range position and connect test
leads across the source or load under measurement.
The polarity of the red lead connection will be indicated along with the voltage
value when making DC voltage measurement.
3. When only the figure
“
1
”
is displayed,it indicates overrange situation and the
higher range has to be selected.
3.4 MEASURING RESISTANCE
1. Connect the black test lead to the COM jack and the red test lead to the V
Ω
jack.
2. Set the rotary switch at desired
Ω
position and connect test leads across the
resistor under measurement.
NOTE:
1. If the resistance being measured exceeds the maximum value of the range
selected or the input is not connected, an overrange indication
“
1
”
will be
displayed.
2. When checking in - circuit resistance, be sure the circuit under test has all power
removed and that all capacitors have been discharged fully.
3.5 TESTING DIODE
1. Connect the black test lead to the COM jack and the red test lead to the V
Ω
jack.
( The polarity of red lead is
“
+
”
)
2. Set the rotary switch at
position and connect red lead to the anode,black lead
to the cathode of the diode under testing. The meter will show the approx. forward
voltage of the diode. If the lead connection is reversed, only figure
“
1
”
displayed.
3.6 CONTINUITY TEST
1. Connect the black test lead to the COM jack and the red test lead to the V
Ω
jack.
( The polarity of the red lead is positive
“
+
”
)
2. Set the rotary switch at position and connect test leads across two points of the
circuit under testing. If continuity exists ( i.e., resistance less than about 50
Ω
),
built -in buzzer will sound.
3.7 MEASURING TEMPERATURE
1. Set the rotary switch at
°
C or
°
F position and the LCD display will show the
current environment temperature.
