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1. Safety Notes 
 
1. Do not input a limit value over the range when measuring.  
2. When measuring voltage higher than 36V DCV, 25V ACV, check the connection and insulation of 

the test leads to avoid electric shock.  

3. Keep the test leads away from the testing point when converting function and range.  
4. Don’t add voltage to the input terminal when measuring resistance. 
 
2. Technical Features 
 
Accuracy: ± (a%×d) 

Surrounding: (23±5) , relative humidity

75%. One year warranty since the date of manufacture. 

 
2.1  DCV 
 

Range 

Accuracy 

Resolution 

200mV 

100uV 

2V 

1mV 

20V 

10mV 

200V 

±(0.5%+4) 

100mV 

600V 

±(1.0%+5) 

1V 

Input impedance: 1M

for all ranges. 

 
2.2  ACV 
 

Range 

Accuracy 

Resolution 

200V 

100mV 

600V 

±(1.2%+10) 

1V 

Input impedance: 1M

.  

Frequency Response: (40

200)Hz 

 
2.3  DCA 
 

Range 

Accuracy 

Resolution 

20uA 

0.01uA 

200uA 

0.1uA 

2mA 

1uA 

20mA 

10uA 

200mA 

±(1.5%+3) 

 

100uA 

10A 

±(2.0%+5) 

10mA 

Summary of Contents for AX-100

Page 1: ...DIGITAL MULTIMETER AX 100 INSTRUCTION MANUAL ...

Page 2: ...he input terminal when measuring resistance 2 Technical Features Accuracy a reading d Surrounding 23 5 relative humidity 75 One year warranty since the date of manufacture 2 1 DCV Range Accuracy Resolution 200mV 100uV 2V 1mV 20V 10mV 200V 0 5 4 100mV 600V 1 0 5 1V Input impedance 1MΩfor all ranges 2 2 ACV Range Accuracy Resolution 200V 100mV 600V 1 2 10 1V Input impedance 1MΩ Frequency Response 40...

Page 3: ...rward DCA is approx 1mA Backward voltage is apporx 3V Buzzer makes a long sound while resistance is less than 70 20 Ω Open voltage is approx 3V Overload Protection 250V DC AC peak value 2 6 DC Voltage Measurement 1 Apply the black test lead to COM terminal and the red test lead to V Ω terminal 2 Set the knob to a proper DCV range and connect the test leads crossly to the electric circuit under tes...

Page 4: ...erwise it may damage the circuit of the meter 4 Avoid touching high voltage circuit when measuring it 2 8 DC Current Measurement 1 Apply the black test lead to COM terminal and the red test lead to V Ω terminal max 200mA or put the red test lead to 10A terminal max 10A 2 Set the knob to a proper DCA range and connect the test leads in series to the electric circuit under test LCD displays polarity...

Page 5: ...der test The red test lead connects to diode positive polarity and the reading is the approx value of diode forward voltage drop 2 11 Continuity Test Set the knob to range apply test leads to the two points of tested circuit If the inner buzzer sounds the resistance is less than 70 20 Ω 3 Battery Replacement Note Pay attention to the battery status Please replace the battery when LCD displays Step...

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