4-4. RANGE CONVERSION KEY
（
RANGE
）
AC / DC voltage, AC current, resistance and other
functions can be selected through the button by manual
or automatic range. Automatic range press this key on
the LCD screen after AUTO disappear, switch to manual
range at this time, press the button not more than 3
seconds to change the range;
If press the key more than 3 seconds , then it goes to the
automatic range.
5. Operating Instruction:
5-1.AC/DC VOLTAGE
a.
Set the function switch to DCV V
—
or ACV V
～
position.
b. Inset the red test probe into the V
Ω
jack
，
black one to
the COM jack.
c. Connect the test leads to the circuit which you want to
test, and read out the value display on the LCD.
Read the result and when you test DCV, you can see the
polarity of the red test probe at the same time.
5-2.RESISTANCE
a. Set the switch to
range
，
and press
“
SELECT
”
to choose
Ω
mode.
b. Set the red test probe to V
Ω
jack
，
and black one to the
COM jack
。
c. Connect the test leads to the circuit which is ready to
be test or the two sides of the resistance.
Notice
When test the resistance over 2M
Ω ，
this meter needs
few seconds to keep stable. This is very normal when
test a high resistance.
When it is not connected or it is under a open circuit,
“OL” will display.
When you are testing the resistance on line, do please
make sure that the power of the circuit is off and the
capacitance have been already release completely.
5-3.ACA
（
A
～）
Set the switch to A~ range, and put the wire vertical in
the centre of the clamp, at this moment the value show
on the LCD is the ACA value.
5-4.DIODE AND CONTINUITY TEST ( BUZZER)
a. Input the red test probe into V
Ω
jack
，
and black one
into COM jack.
b. Set the switch to
range
，
and press
“
SELECT
”
to choose diode or buzzer mode
。
c. During the buzzer test, if the resistance of the circuit
which you want to test is less than 50
Ω
,the buzzer
rings.
d. Under the diode test mode, connect the test leads to
the positive and negative poles of the diode.LCD will
display the value of the positive onset voltage.
5-5.TEMPERATURE
a. Set the switch to
℃
/
℉
position.
b. Connect the K type thermocouple to V
Ω
jack and
COM jack, pay attention to the polarity when testing.
c. Put measuring jack on the surface or inner of the
measured object. It shows temperature value.
Notes:
1) After insert temperature probe into device jack,
temperatures will display automatically
2) When temperature probe do not connect with device
jack, it shows temperature environment.
5-6. HZ/Duty Measuring.
a. Insert the red test probe into the VΩ jack and black
test probe into the COM jack.
b. Set the function switch in the HZ position, select the
measuring function, connect the test probe onto the
both ends of the being tested circuits.
5-7.
Capacitance Measuring
a. Insert the red test probe into the VΩ jack and black
test probe into the COM jack.
b. Set the function switch in the
position, press
“select” button to choose capacitance measuring function.
(Note: Polarity of red test probe shows “+”)
c. Connect test probe onto both ends of the capacitance
to be tested and confirm if the polarity is correct. (Note:
Before measuring, capacitance should be completely
discharged. When measuring large bulk capacitance, it
needs about 10 seconds to read stable data.)
6.
Battery Replacement
:
LCD display
,
you need to replace AAA 1.5V
battery promptly.
7.
Notes
: Do not input 250V DC or RMS AC under the
background of
/ Temperature
℃
/
℉
/ Frequency
to prevent it from destroying.
601E-0031-000A
