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Contents

1. Overview

1.1About Safety

1.1.1 Safety instructions

1.1.2 Safety precautions

1.1.3 Safety symbols

1.1.4 Maintenance

1.2Input protection measures

2. Instrument instruction

2.1Instrument exterior

2.2Symbol instructions of display

2.3Instructions of function buttons

2.4Instructions of input socket

2.5Accessories

3. Operation instructions

3.1Routine operation

3.1.1 Functions shift and data hold

3.1.2 Backlit and illumination

3.1.3 Auto power off

3.2Measuring instructions

3.2.1 ACV and DCV measurement

3.2.2 Resistance measurement

3.2.3 Diode measurement

3.2.4 Buzzer test

3.2.5 Capacitance measurement

3.2.6 Transistor measurement

3.2.7 Frequency measurement

3.2.8 Current measurement

3.2.9 NCV test

3.2.10Infrared signal detection

3.2.11Temperature measurement

4. Technical datasheet

4.1Comprehensive indicators

4.2Accuracy index

4.2.1 Direct current of voltage

4.2.2 Alternative current of voltage

4.2.3 Frequency

4.2.4 Resistance

4.2.5 Diode

4.2.6 Buzzer

4.2.7 Transistor

4.2.8 Capacitance

4.2.9 Direct current

4.2.10Alternative current

4.2.11Temperature

5. Maintenance 5.1General maintenance

5.2Battery replacement

1. Overview

This digital multimeter is designed and produced according to the

requirements of international electrical safety standards IEC-61010

for the safety requirements of electronic measuring instruments and

handheld digital multimeters.

Meet the 600V CAT III, 1000V CAT Ⅱ of IEC61010 and its

requirements of pollution. Before using this instrument, please read

the instruction manual carefully, and pay attention to the relevant

safety operation guidelines.

1.1About Safety

1.1.1 Safety instructions

 When using this meter, the user must comply with all the standard

safety regulations concerning the following two aspects:

A: Protection against electric shocks.

B: Prevent the misuse of the instrument's safety procedures.

 To ensure your personal safety, use the test pen provided with the

table, check before use, and make sure they are intact.

1.1.2 Safety precautions

 The use of meter instruments near devices with large

electromagnetic disturbances will be unstable and may even cause

large errors.

 Do not use when the appearance of the meter or the test pen is

broken.

 If the meter is not used correctly, the safety functions provided by

the meter may fail.

 Care must be taken when working around bare conductors or buses.

 Do not use this instrument near explosive gas vapor or dust.

 The correct input function must be used to measure the range.

 The input value must not exceed the limit of the input value specified

for each range to prevent damage to the instrument,

 Do not touch the unused input when the instrument is connected to

the circuit under test.

 When the measured voltage exceeds 60V DC or 30 V AC , use caution

to prevent electric shock.

 When measuring with a test pen, place your finger behind the guard

ring of the test.

 Before converting the range, it must be ensured that the test pens

have left the circuit under test.

 For all DC functions, to avoid the risk of electric shock due to possible

incorrect readings, use this function first to confirm the presence of

any AC voltage, and then select a DC voltage range equal to or

greater than the AC voltage.

 Before carrying out a resistance, diode, capacitance measurement or continuity test, the circuit under test must be powered off and all

high-voltage capacitors in the circuit under test should be discharged.

 Do not measure the resistance on a live circuit or perform buzzer

test.

 Before conducting the current measurement, the fuse of the meter

should be checked. Before connecting the meter to the circuit under

test, the power of the circuit under test should be turned off.

 When performing TV repairs or measuring power conversion circuits,

care must be taken in the high-amplitude voltage pulses in the circuit

under test to avoid damage to the meter.

 The power supply of instrument uses four pieces AA 1.5V batteries.

The battery must be properly installed in the battery compartment of

the meter.

 When the battery with low voltage symbol

appears, replace the

battery immediately. Insufficient battery power can make the meter

read incorrectly, which may result in electric shock or personal injury.

 When measuring Category Ⅱ voltages, do not exceed 1000V. For

measurement category Ⅲ , do not exceed 600V.

 Do not use the instrument when the instrument's housing or part of

the housing is removed.