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IMPORTANT SAFETY INFORMATION
Please read these instructions carefully before use and retain for future 

reference.

• 

When using electrical appliances basic safety precautions should always be 

followed.

• 

Before use, check that there is no damage to the instrument, there is no metal 

exposed or sign of wear to the insulating layer of the probe.

• 

Do not touch the charged body with voltage exceeding 30V AC RMS, 42V AC or 

60V DC.

• 

When the low battery indicator is displayed, replace the battery immediately to 

avoid any potential measurement error.

• 

The input measurement voltage should not exceed the rated value regulated by 

the instrument.

• 

Do not use the instrument around explosive gas, steam or in a wet environment.

• 

When measuring, connect the zero/ground line first, then connect the live wire.

• 

When disconnecting, ensure you disconnect the live wire first and then disconnect 

the zero line and ground line.

• 

When measuring, ensure your fingers are behind the finger protector of the probe.

• 

Do not use the instrument in the event of a single element, whose rating is the 

lowest in the instrument, probe or accessories, exceeding the measurement 

category (CAT) ratings.

ELECTRICAL SYMBOLS

Symbol

Description

High voltage warning.

AC (Alternating Current).

DC (Direct Current).

AC or DC.

Warning. Important safety information.

Ground.

Fuse.

Equipment with double insulation protection.

CAT III

CAT III measurement is suitable for test and measurement of circuits 

which are connected to the mains installation of a building.

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Summary of Contents for D03127

Page 1: ...1 MODEL D03127 Digital Multimeter Pen Type...

Page 2: ...rview 4 Measurement Operation 5 AC DC Voltage Measurement 5 AC DC Current Measurement 5 Resistance Measurement 6 Diode Measurement 6 Connectivity Test 6 Non contact Voltage Detection 6 General Technic...

Page 3: ...instrument around explosive gas steam or in a wet environment When measuring connect the zero ground line first then connect the live wire When disconnecting ensure you disconnect the live wire first...

Page 4: ...unit is turned the default mode is automatic range on or the function is switched the instrument displays AUTO symbol The operations of entering or quitting manual range are as follows In automatic r...

Page 5: ...screen When measuring DC current the display also shows the voltage polarity of the red probe test point Note If OL is displayed it means that the instrument exceeds the measurement range of the instr...

Page 6: ...50 the buzzer will sound Warning Firstly disconnect the power supply of the circuit to be measured and fully discharge all high voltage capacitors After completing all measurements always disconnect t...

Page 7: ...humidity is no more than 80 DC Voltage Range Resolution Accuracy 200mV 0 1mV 0 5 reading 3 2V 0 001V 20V 0 01V 200V 0 1V 600V 1V 0 8 reading 5 Input impedance 10M Maximum input voltage DC or AC 600V...

Page 8: ...ore than about 50 Testing current about 1mA open circuit voltage about 2 8V Input protection Maximum DC or AC 600V RMS REPLACING THE BATTERIES Turn off the power supply and disconnect the probe from t...

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