This instrument is a high performance and accuracy digital
multimeter driven by 9V battery. It uses the LCD with 26mm high
figure to make the reading clear and the operation more
convenient.
This instrument can measure DC and AC Voltage, DC and AC
Current, Resistance, Capacitance, Frequency, Diode, Transistor,
Continuity, Temperature, etc. It is an excellent instrument with the
dual-integral A/D converter as core, mostly suitable for lab, factory,
maintenance and repair users.
Safety Note
This instrument meets the standard of IEC1010 (safety standard
promulgated by International Electrician Committee), please read
the safety notes carefully before operation.
1. Do not input the value over the range limit when measuring
each range.
2. The safety voltage is below 36V, please make sure the test
leads connect reliably, link up correctly, isolate properly to
avoid electric shock when measuring the voltage higher than
36V DC or 25V AC.
3. Please make sure the test leads off the tested point when
converting the function and range.
4. Please select the correct function and range to avoid the fault
operation. Even through the instrument has full protection
function; please pay high attention when measuring for safety.
5. Do not operate the instrument before the battery is fixed on
properly and battery compartment is screwed tightly.
6. Do not input the voltage when measuring the resistance.
7. Please make sure the test leads off the tested point and the
power is turned off before replacing the battery or fuse.
Safety Note Description:
” indispensably refer to the manual, “ ” GND ,
“
“ ” Double Insulation, “” low battery。
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Property
1. General Properly
1-1. Display: LCD
1-2. Max display: 1999 (3 1/2 digit) automatic polarity display.
1-3. Measuring method: dual-integral A/D converter
1-4. Sampling Rage: approx. 3 times / sec.
1-5. Overrange display: LCD displays “1” or “-1”
1-6. Low battery display: “
1-7. Operation environment: (0~40)℃,Relative humidity: <80%
1-8. Power: a 9V battery (NEDA1604/6F22 or equivalent)
1-9. Dimension: 182 x 90 x 46 mm
1-10. Weight: approx. 320g (Not including 9V battery)
1-11. Accessory: user manual, CAT III test leads, temperature
Technical Property
2-1.Accuracy: ±(a% x reading + digits) at (23±5)℃, relative
2-2.Functions: DC and AC Voltage, DC and AC Current,
2-3-1.(DCV)
Input Impedance: 10 MΩ at all the ranges.
Overload protection: 250V DC or AC peak value at Range
200mV, 1000V DC or AC peak value at other Ranges.
”symbol appearance
probe, test socket
humidity <75%, one year calibration guarantee since the time
dispatched form the manufactory.
Resistance, Capacitance, Frequency, Diode, Transistor,
Continuity, Temperature, Backlight, Auto power off, Overload
protection, Low battery indication
200MΩ ±(5.0%+30d) 100kΩ
Open circuit voltage: less than 0.7V
Overload protection: 250V DC and AC peak value.
Note: At Range 200Ω, short-circuit the test lead to test the wire
resistance, and then subtract it from the real measurement.
WARNING: DO NOT input any voltage at resistance
range for safety!
2-3-6.(C)
Range Accuracy Resolution
2nF ±(2.5%+20d) 1pF
20nF ±(2.5%+20d) 10pF
200nF ±(2.5%+20d) 100pF
2uF ±(2.5%+20d) 1nF
20uF ±(5.0%+10d) 10nF
• Overload protection: 36V DC or AC peak value
WARNING: DO NOT input any voltage at this range for
safety!
±(0.8%+3d)
1kΩ
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2-3-7.(f)
Range Accurac
y Resolution
20kHz ±(3.0%+18d) 10Hz
Input sensitivity: 1V RMS value
Overload protection: 250V DC or AC peak value (less than 15
seconds)
2-3-8.(℃)
Range
Accuracy
Accuracy
Resolution
(-20~400)℃ ±(1.0%+5d) 1℃
(400~1000)℃ ±(1.5%+15d) 1℃
Sensor: K Type Thermocouple, banana plug
WARNING: DO NOT input any voltage at this range for
safety!
2-3-9.Diode and Continuity Test
Range Description Test Condition
Forward voltage
drop of diode
Buzzer sound at
less than(70±20)Ω
Forward DC Current approx.
1mA,Counter Voltage
approx. 3V
Open-circuit voltage approx.
3V
Overload protection: 250V DC or AC peak value.
2-2-10. Triode hFE test
Range Displaying value Test condition
hFE NPN or PNP 0~1000 Basic current is
approx.10uA,Vce
is approx.3V
WARNING: DO NOT input any voltage at this range for
safety!
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Ope
ration Method
1. Front Panel Description
1. LCD: Display the measuring
value
HOLD Key: Press the key,
2.
the present measuring value
is held on LCD, and appear
“Hold” symbol, press the key
again, disappear “Hold”
symbol, and exist the Date
Hold function
3. Range Knob: Switch the
measuring function and
range
4. Less than 200mA
current ,Capacitance ,Tempe
+” ,HFE measuring terminal
rature“
5. 10A current measuring terminal
6. Voltage, Resistance, and diode, Continuity, Frequency
measuring terminal
7. In common terminal, Capacitance, Temperature“
-”, HFE,
Frequency measuring terminal
8. Power switch: Power on/off
9. Backlight switch
10. LED indicator light
2. DCV Measurement
1. Insert the black lead into the “COM” terminal, and the red
lead into “V/Ω/Hz” the terminal
2. Tern the range knob to the DCV Range, then connect the
test leads cross the tested circuit, the voltage and polarity
of the tested point connected by the red test lead are
displayed on LCD.
Note:
1
. If the tested voltage is unknown beforehand, should turn
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2. If LCD displays “1”, it indicates overload, should turn the
knob to the higher range.
3. ACV Measurement
1. Insert the black lead into “COM” terminal, and the red lead
into “V/Ω/Hz” terminal, turn the knob to the ACV range,
then connect the test leads across the tested circuit.
Note:
1. If the tested voltage is unknown beforehand, should turn
the knob to the highest range, and then turn to the relative
range according to the value displayed on LCD.
2. If LCD displays “1”, it indicates overload, should turn the
knob to the higher range.
4. DCA Measurement
1. Insert the black lead into “COM” terminal, and red lead into
“mA” terminal (Max 200mA) or red lead into “10A”
terminal(Max 10A)
2. Tern the knob to the DCA Range, then connect the test
leads into the tested circuit in series, the tested current
value and polarity of the red lead will be displayed on LCD
simultaneously.
Note:
1. If the tested current is unknown beforehand, should turn
the knob to the highest range, and then turn to the relative
range according to the value displayed on LCD
2. If LCD displays “1”, it indicates overload, should turn the
knob to the higher range.
3
. The max input current is 200mA or 10A, it depends on the
location the red lead is inserted. When measuring 10A,
note it will affect the accuracy of measurement and
damage the instrument to continuously measure large
current to make the circuit heat
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5. ACA Measurement
1. Insert the black lead into “COM” terminal, and red lead into
“mA” terminal (max 200 mA), or red lead into “10A” terminal
(max 10A)
2. Tern the knob to the ACA Range, then connect the test
leads into the tested circuit in series.
Note:
1. If the tested current is unknown beforehand, should turn
the knob to the highest range, and then turn to the relative
range according to the value displayed on LCD.
2. If LCD displays “1”, it indicates overload, should turn the
knob to the higher range
3. The max input current is 200mA or 10A, it depends on the
location the red lead is inserted. When measuring 10A,
note it will affect the accuracy of measurement and
damage the instrument to continuously measure large
current to make the circuit heat
6. Resistance Measurement
1. Insert the black lead into “COM” terminal, and red lead into
“V/Ω/Hz” terminal
2. Turn the knob to the Resistance Range, then connect the
test leads across the tested circuit
Note:
1. If the tested value exceeds the range selected, LCD
displays “1”, should turn the knob to higher range; When
the tested value exceeds 1MΩ, it is normal to take several
seconds to make the reading stable.
2. When the input terminal is open circuit, LCD displays the
status of overload.
3. When measuring in-circuit resistance, to make sure the
power of the tested circuit has been turned off and all the
capacitors has been discharged completely.
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7. Capacitance Measurement
1. Insert the red lead into “mA” terminal, and black lead into
“COM” terminal
2. Turn the knob to the Capacitance Range, then connect the
test leads across the tested capacitance (note the polarity
of the red lead is positive)
Note:
1. If the tested capacitor is unknown beforehand, should turn
the knob to the highest range,
2. and then turn to the relative range according to the value
displayed on LCD
3. If LCD displays “1”, it indicates overload, should turn the
knob to the higher range
4. Before measuring capacitor, it is possible the display on
LCD doesn’t return to zero, the reading on LCD will
gradually approach zero, please ignore it, it doesn’t affect
the accuracy of measurement.
5. When severe creepage or capacitor breakdown measured
at large capacitance range, LCD will display some value
unstably.
6. Before measuring capacitor, should completely discharge
the capacitor to avoid damaging the instrument.
7. 1uF =1000nF 1nF=1000pF
8. Frequency Measurement
1. Insert the leads or shield cable into “COM” and “V/Ω/Hz”
terminals.
2. Turn the knob to the Frequency Range, then connect the
test leads or cable across the signal source or tested load.
3. When input more 10Vrms, reading is available, but it is
possible to be out of specification.
4. In noisy environment, it is preferable to use shield cable
when measuring small signal
5
. Caution to avoid touching the high voltage circuit when
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measuri
6. Do not input more than 250V DC or AC peak value to avoid
damaging the instrument.
9. .Diode and Continuity Test
1. Insert the black lead into “COM” terminal, and red lead into
“V/Ω/Hz” terminal (Note: the polarity of red lead is positive)
2. Turn the knob to the “
leads across the tested diode, the reading is the
approximation of the diode forward voltage drop.
3. Connect the test leads to the two points of the tested circuit,
if the value of resistance between the two points is less
than (70±20)Ω, the buzzer inside sounds
10. Temperature Measurement
When measuring Temperature, input the negative pole of
the thermocouple sensor into “COM” terminal, and positive
pole into “mA” terminal, connect the working side of the
thermocouple to the surface or inside of the tested subject,
to read the Fahrenheit temperature from LCD directly.
11. TRIODE hFE
1. Set the range knob to hFE.
2. Insert the test accessory into “COM” and “mA” terminal.
3. Verify the type of the transistor is NPN or PNP, insert the
12. Data Hold
Press the HOLD key, the present data is held on LCD.
13. Auto Power Off
Stop working around 15 minutes, the instrument will auto
off and get into the sleeping mode.
ng the high voltage circuit.
” Range, then connect the test
emitter, basic and collector to the proper jack on test
accessory.
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Maintenance
T
his is a high precise instrument; do not try to modify the inner
circuit at will.
1. Keep the instrument dry, and keep it away from dust and
shock
2. Do not store and use the instrument in high humility, high
temperature, combustible, explosive and strong magnetic
places.
3. Clean the instrument with the damp cloth and gentle
detergent, do not use the strong solvent like the abrasive
cleaner and alcohol, etc.
4. Take out the battery if not use the instrument for a long time
to prevent the battery leaking and the liquid to corrode the
instrument.
4-1. Note the status of the battery consumption, when LCD
displays “
the following steps:
4-1-1.Open the battery compartment
4-1-2.Remove the 9V battery, and replace it by same
4-1-3. Fit on the battery compartment
“symbol, should replace the batteries as
type new battery. It is better to use alkaline
batteries for longer service time.
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F
AULT ELIMINATION
If the instrument does not work properly, the below methods can
help you to solve the problems quickly. If the fault still can’t be
eliminated, please contact the maintenance center or the
distributors:
Fault Solution
Power off –pls turn on the power
No display
symbol
appearance
No current input Replace fuse
Error value Replace battery
1. The user manual is subject to change without notice
2. The contents in the user’s manual are considered to be
correct, if the user find any error or pretermissions, etc.,
please contact the manufacturer.
3. The manufacturer hereby will not be responsible for any
accident and damage caused by the improper operation.
4. The functions described in this instruction manual do not be
the reason for special usage.
Hold Key-pls set a correct mode
Replace battery