Pro's Kit MT-3102 User manual

MT-3102

3 1/2 2A Mini Digital Clamp Meter

User’s Manual

1st Edition,2020

3 1/2 2A Mini Digital Clamp Meter

user manual

INSTRUCTION

MT-3102 3 1/2 mini digital clamp meter is a 3 1/2-digit LCD

multi-meter for measuringAC and DC voltage,AC current,

resistance, temperature, Diode and continuity test.All overload

protection is provided. The function/range rotatable switch

design makes manual operation workable, and range selector,

power switch are all on one know. The select buttons for easy

function change. It is ideal instrument for use in fields, factory,

college and laboratory.

SAFETY INFORMATION

This digital clamp meter has been designed according safety

standard IEC-61010-I and LECI010-2-032 concerning electronic

measuring instruments with an over voltage category（CAT II

600V）and pollution degree 2

ELECTRICAL SYMBOLS

Warning

Earth

Ground

Double

insulated

(Protection

class II）

Alternating

signal test

Direct

signal

test

Continuity

buzzer

Diode test

Low Battery

Conforms to European Union directives

Dangerous voltage may be present.

Capacitor

3 1/2 2A Mini Digital Clamp Meter

user manual

SAFETY WARNING

1. Read the operating instructions before using the

instrument and pay particular attention to all WARNINGS

and CAUTIONS in this instruction manual.

2. Be sure that the cover and the test leads of the meter are

in good conditions.

3. Set the range / function switch at the correct position when

measuring.

4. Make sure to insert the red and the black test leads to their

appropriate jacks. The black test lead should be connected

first when measuring while the red test lead should be

disconnected first after measuring.

5. When the range and function changes, both test leads

should be disconnected.

6. To avoid damage to the instrument, never exceed the

allowable maximum input of each range.

7. Be care of electric shock hazard when the voltage to be

tested is above DC 60V or AC 30V.

8. To avoid electric shock, do not open the battery

compartment cover when making measurement.

9. Remove the test leads from the circuit being measured

before replacing the battery.

10. Do not change the built-in circuit to avoid damage to the

meter.

11. Do not use or store the instrument in an explosive

atmosphere (i.e. the presence of flammable gas or fume,

vapor or dust）

12. CAT II-Measurement Category II is for measurements

performed on circuits directly connected to low voltage

installation.（Examples are measurements on household

appliances, portable tools and similar equipments.）Dot not

use the meter for measurements within Measurement

Categories III and IV

13.

3 1/2 2A Mini Digital Clamp Meter

user manual

MT-3102

SELECT

MAX

HOLD

DC Voltage

N/A

●

AC Voltage

N/A

●

Resistance，Continuity，

Diode test

●

N/A

●

Temperature ℃/℉(K-Type)

●

N/A

●

DC current 2/20A

N/A

●

AC current 200/400A

N/A

●

FRONT PANEL DESCRIPTION

1. COM Input Jack / V/Ω Input Jack

2. 1/2-digit LCD Display Panel

3. Function Switch Button

(SEL/MAX/HOLD）

4. Function/range select rotary selector

5. Trigger

6. Protection edge

7. Current Clamp

LCD DISPLAY SYMBOLS

AUTO

HOLD

℃/℉

μm / VA

MAX

－

:t Alternating signal test

Direct signal test

Low Battery

Auto range mode ？

Diode test

Continuity buzzer

This indicates that the display data is being held

Temperature test

Ohms, Kilo-ohms, mega-ohms resistance test

Amperes（Current）or Milli-volts, Volts（Voltage）

The maximum value is being measured

Negative polar mark

3 1/2 2A Mini Digital Clamp Meter

user manual

GENERAL SPECIFICATIONS

1. Auto range and manual range options are available.

2. Over range protection is provided for all ranges.

3. Display：3 1/2-digit（1999 count）

4. Measuring method：Dual slope integration A/D converter

5. Sampling speed：2-3 time/sec

6. Unit display：Function and unit symbols displayed

7. Polarity：Automatic negative polarity display

8. Overload indication：Symbol “1”appears on the LCD

9. Low battery indication：Symbol

appears on the LCD

10. Auto power off time：15min

11. Operation temperature：0~40℃,≦75%RH

12. Storage temperature：-20℃~60℃, ≦75%RH

13. Operation power：1.5V x 3AAA Batteries

14. Dimension：203mm(L)x68mm(W)x33mm(D)

15. Weight：187g（without battery）

BUTTON FUNCTION AND AUTO POWER OFF

1. HOLD: For measuring data hold, press the HOLD button,

the peak value of current data will be keeping displaying on

LCD; press it again to cancel this function

2. MAX: Maximum data hold button, when press this button,

the A/D converter will keep measuring, and the display

updating the data and hold the maximum data

3. SELECT：Function selection button, press for switching ohm

/ diode /continuity/ temperature function when tested objects

change

4. Auto-power off : If there is no any operation within any fifteen

minutes after power is on, the meter will auto power off. Turn

the rotary selector or press any function button to resume

operation of the meter under the auto power off mode. At the

same time when power on, if press the ”HOLD” button, auto

power off will be disable.

3 1/2 2A Mini Digital Clamp Meter

user manual

NOTE：

(1) When the meter auto power off under temperature

measuring function, and rotate the selector to any

measuring function, the meter will be able to resume

operation, except ACV measuring function.

(2) After automatic turn-off, THEN press HOLD to re-start, the

function of automatic turn-off will be cancel.

5. Buzzer

Set the selector to any measuring function (except 2/20A

ACV function), press any button, the buzzer will sound;

otherwise, the button is idleness. One minutes before auto

power off, the buzzer continue sound in five times, and one

long buzz before power off.

Note: when the selector in measuring function of 2/20AACV,

the buzzer won’t sound.

ELECTRICAL SPECIFICATIONS

Accuracy：±（%reading + digits）

Operation temperature：23℃,≦75%RH

Range

Resolution

Accuracy

Overload

protection

200mV

0.1mV

±（0.8%+5d）

600V rms

1mV

±（0.8%+3d）

20V

10mV

200V

100mV

600V

±（1.0%+5d）

AC Voltage：Auto Range

Range

Resolution

Accuracy

Overload

protection

1mV

±（1.2%+5d）

600V rms

20V

10mV

200V

100mV

600V

±（1.5%+5d）

Input impedance：10MΩ

Frequency range：40~400Hz

3 1/2 2A Mini Digital Clamp Meter

user manual

AC Current：Auto Range

Range

Resolution

Accuracy

Overload

protection

1mA

±（4%+20d）

≦0.4A

400A rms

±（3%+15d）

20A

10mA

±（3%+15d）

≦0.4A

±（2%+10d）

200A

0.1V

±（2%+5d）

400A

Frequency range：40~400Hz

Resistance：Auto Range

Range

Resolution

Accuracy

Overload

protection

200Ω

100mΩ

±（1.2%+5d）

600Vp

2KΩ

1Ω

±（1%+3d）

20KΩ

10Ω

200KΩ

100Ω

2MΩ

1KΩ

±（1.2%+5d）

20MΩ

10KΩ

±（1.5%+5d）

3 1/2 2A Mini Digital Clamp Meter

user manual

Continuity：

Range

Resoluti

Accuracy

Overload

protection

100mΩ

Built-in buzzer

will sound, if

resistance is

lower than

≦50Ω

600Vp

Open circuit voltage ~ 0.45V

Diode：

Range

Resolution

Accuracy

Overload

protection

1mV

Displaying

approximate

forward

voltage of

diode

600Vp

Open circuit voltage ~ 1.48V

Temperature：℃/℉

Range

Resolution

Accuracy

Overload

protection

-40℉~

1832

℉

1℉

-40℉~32℉±

（3%+8d）

600Vp

0℉~752℉±

（1%+6d）

752℉~1832℉±

（2%+18d）

-40℃~

1000

℃

1℃

-40℃~0℃±

（3%+4d）

0℃~400℃±

（1%+3d）

400℃~1000℃±

（2%+10d）

3 1/2 2A Mini Digital Clamp Meter

user manual

MEASURING AC VOLTAGE

1. SAFETY INFORMATION

WARNING

Beware of Electrocution

Pay special attention to avoid electric shock when

measuring high voltage. Do not input the voltage which

more than 600V rms AC.

1. Plug the black test lead into the COM jack and the red

test lead into the V/Ω Jack.

2. Set the rotary selector to V~ position to make the meter

get into AC V range.

3. Connect the test leads to the voltage source or load

terminals for measurement.

4. Take the reading on the LCD.

MEASURING DC VOLTAGE

1) Plug the black test lead into the COM jack and the red

test lead into the V/Ω Jack.

2) Set the rotary selector to V position to make the

meter get into DC V range.

3) Connect the test leads to the voltage source or load

terminals for measurement.

4) Take the reading on the LCD.

MEASURING AC CURRENT

1) Set the rotary selector to the A~2A/20A or 200A/400A

WARNING

Beware of Electrocution

Pay special attention to avoid electric shock when

measuring high voltage.

Do not input the voltage which more than 600V DC.

WARNING

Beware of Electrocution.

Ensure that the test leads are disconnected from the

meter before making current clamp measurements.

3 1/2 2A Mini Digital Clamp Meter

user manual

range position.

2) Press the trigger to open jaw. Fully enclose only one

conductor.

3) Take the reading on the LCD.

MEASURING RESISTANCE

1) Plug the black test lead into the COM jack and the red test

lead into the V/Ω Jack.

2) Set the rotary selector to Ω/ / range position to make

the meter get into AC V range.

3) Connect the test leads to the ends of the resistance or

circuit for measurement.

4) Take the reading on the LCD.

TESTING CONTINUITY

1) Plug the black test lead into the COM jack and the red test

lead into the V/Ω Jack.

2) Set the rotary selector to Ω/ / range position.

3) Press the “SEL” button to switch to continuity test.

4) Connect the test leads to the ends of the resistance or

circuit for measurement.

5) If the resistance of the circuit being tested is less than 50Ω,

the built-in buzzer will sound.

6) Take the reading on the LCD.

TESTING DIODE

1) Plug the black test lead into the COM jack and the red test

WARNING

Beware of Electrocution.

Make sure that the power of the circuit has been

turned off and the capacitors have been fully

discharged before testing the continuity of a circuit.

WARNING

Beware of Electrocution.

Ensure that the test leads are disconnected from the

meter before making current clamp measurements.

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