2) Press RANGE, DC/AC, or switch the rotary will exit the HOLD mode.
B.LIGHT: backlight control
3) Press HOLD more than 2 seconds will turn on the backlight. Press it for another 2 seconds will turn off the backlight. When backlight is on, it
will auto off in 10 seconds, unless you press HOLD for more than 2 seconds.
③
-
5.RANGE: Auto or manual ranging.
Auto range is the default when you turn on the meter. Press RANGE it will enter manual range mode. Press RANGE can switch between the ranges
available for the selected function. To return to auto ranging, hold the button down for more than 2 seconds.
③
-
6.“DC/AC”:
1) DC/AC function button can choose DC or AC measurement under
mode. Under Ω
(Ohm/Diode/Beeper) mode, press DC/AC can
choose Ω,
or
. Under temperature measurement, press DC/AC can choose
℃ or ℉ .
2
）
Keep this button down when turn on the meter, auto power off function will be canceled, the symbol APO will disappear. Under the dormancy
mode, press DC/AC will turn on the meter and will activate auto power off function.
3
）
When there is no measurement in 15 minutes, the meter will auto power off and enter dormancy mode. In one minute before dormancy mode,
the buzzer will beep 5 times to remind user. Press any button will exit the dormancy mode.
④
. LCD: Display the data and unit symbol.
Number
Feature
Indication
1
-
Negative polarity indicator for the analog bar graph.
2
AUTO
Auto range mode.
3
AC
AC voltage or current measurement.
4
-
Indicates negative readings.
5
DC
DC voltage or current measurement.
6
Low battery indication. Warning: To avoid false readings, which could lead to possible electric shock
or personal injury, please replace the battery as soon as the battery indicator appears.
7
RS232
Invalid.
8
MAX/MIN
Indicators for minimum-maximum recording mode.
9
HOLD
Display Hold is active.
10
REL
Relative (REL) mode is active.
11
Diode test mode and the continuity beeper is on.
12
APO
Auto power off mode is on.
13
Hi
Indicator for Hi measurement mode.
At Ω range, press DC/AC can choose Max 6000MΩ high resistance measurement. Accuracy is not
referable.
At Hz range, press DC/AC can choose Max 1000MHz high frequency measurement. Accuracy is not
referable. High frequency measurement needs special accessories: a device can divide frequency to
128, or keep the impulse amplitude above 200mV RMS. We don’t provide those special accessories.
14
hFE,
℃, ℉
%
RPM
MΩ, kΩ, Ω
Hz, kHz, MHz
mV, V
A, μA, mA
μF, nF
hFE (Triode magnification measurement) Degrees Celsius, Degrees Fahrenheit
Percent (used in duty cycle coefficient measurement)
Rotational speed (test RPM needs special accessories: a device which can convert rotate speed to
electrical pulse, and the electrical pulse should be above 200mV RMS. We don’t provide these
accessories.)
Megohm, Kilohm, Ohm
Hertz, Kilohertz, Megahertz
Millivolts, Volts
Amperes (amps), Microamp, Milliamp
Microfarad, Nanofarad
⑤
. Holster and Battery door.
4.2 DCV measurement
1. Switch the knob to "
" range. The default is DCV measurement, press "DC/AC" can choose DC or AC measurement.
2.
Insert the black test lead in “COM” terminal and the red one in “V/Ω/Hz” terminal.
3.Auto range is the original states, it will display “AUTO” symbol
，
press “RANGE” key change to manual range mode
，
and 600mV, 6V, 60V, 600V,
1000V range is available;
4. Connect test leads to the test point; LCD will display polarity and voltage of the test point connected by the red test lead.
Note
：
1.
Under manual range mode, if LCD displays “OL”, it means over range, you should select the higher range.
2. Do not input a voltage over DC 1000V. It may cause damage to the circuit of meter.
3. Be careful while measuring a high voltage circuit. DO NOT touch the high voltage circuit.
4. The built –in buzzer will beep to remind user, when the measuring voltage over DC1000V.
4.3 ACV measurement
1. Switch the knob to “
” range, and then press “DC/AC” to choose AC measurement.
2. Insert the black test lead in “COM” terminal and the red one in
“V/Ω/Hz” terminal.
3. Auto range is the original states, it will display “AUTO” symbol
，
press “RANGE” key change to manual range mode
，
and 6V
，
60V
，
600V
，
750V range is available.
4. Connect the leads to the electric circuit. LCD will display voltage of the two test points.
Note:
1. Under manual range mode, if LCD displays “OL”, it means over range, you should select the higher range.
2
.
Do not input a voltage over AC 750V. It may cause damage to the circuit of meter.
3. Be careful while measuring a high voltage circuit. DO NOT touch the high voltage circuit.
4. The built –in buzzer will beep to remind user, when the measuring voltage over AC750V.
4.4
VSD True RMS voltage measurement
1. Switch the knob to “
” range.
2.
Insert the black test lead in “COM” terminal and the red one in “V/Ω/Hz” terminal.
3. Auto range is the original states, it will display “AUTO” symbol
，
press “RANGE” key change to manual range mode
，
and 6V
，
60V
，
600V
，
750V range is available. All the signal will be converted by a wave filter, and voltage with frequency higher than 1kHz will be prevented, and
voltage with lower frequency can pass. By this way, it can improve the measurement results of composite wave produced by inverter and
variable-frequency motor.
4. Connect the leads to the electric circuit; LCD will display voltage of the two test points.
Note:
1. Under manual range mode, if LCD displays “OL”, it means over range, you should select the higher range.
2
.
Do not input a voltage over AC 750V. It may cause damage to the circuit of meter.
3. Be careful while measuring a high voltage circuit. DO NOT touch the high voltage circuit.
4. The built –in buzzer will beep to remind user, when the measuring voltage over AC750V.
4.5 DCA measurement
1. Switch the knob to “
” range. The default is DCA measurement, press "DC/AC" can choose DC or AC measurement.
2. Insert the black test lead in “COM” terminal and the red one in “uAmA” terminal (Max. 600mA) or to “A” terminal (Max.20A);
3. Connect the leads to the electric circuit. LCD will display polarity and current of the test point connected by the red test lead.
Note:
1. Firstly users should select the highest range, if users not sure about the range of current under test, and then select the proper range based on
displaying value.
2. If the LCD displays “OL”
，
it means the current is over range. Now you need to select a higher range.
3. Maximum input current is 600mA or 20A
（
subject to where the red test lead insert in
）
, current higher than that will damage the fuse, and may
cause damage to the circuit of meter.
4.6 ACA measurement
1. Switch the knob to “
” range. Press "DC/AC" to choose AC measurement.
2. Insert the black test lead in “COM” terminal and the red one in “uAmA” terminal (Max. 600mA) or to “A” terminal (Max. 20A);
3. Connect the leads to the electric circuit. LCD will display polarity and current of the test point connected by the red test lead.
Note:
1. Firstly users should select the highest range, if users not sure about the range of current under test, and then select the proper range based on
displaying value.
2. If the LCD displays “OL”
，
it means the current is over range. Now you need to select a higher range.
3. Maximum input current is 600mA or 20A
（
subject to where the red test lead insert in
）
, current higher than that will damage the fuse, and may
cause damage to the circuit of meter.
4.7 Resistance measurement
1. Switch the knob to “
Ω
” range, and connect the leads with the resistor under test.
2. Insert the black lest lead in “COM” terminal and the red one in “V/Ω/Hz” terminal.
；
3. Auto range is the original states, press “RANGE” key change to manual range mode.
