ETCR3400B Insulation Resistance Tester-Earth Resistance/Insulation Resistance Tester-ETCR
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ETCR3400B Insulation Resistance Tester

Product Main Function

1. Insulation Resistance Measurement, Range: 1MΩ~20GΩ

2. AC Voltage Measurement, Range：1~750V

3. Test Voltage Range: 2500V

     ETCR3400 series Insulation Resistance Tester is a high performance handheld digital instrument. Suitable for measuring the insulation resistance of electrical machines, cables, switches, electrical appliances and other electrical equipment and insulating materials, and can be used for maintenance, testing and verification of various electrical equipment. It is a common and essential instrument for telecommunication, electric power, meteorology, machine room, oil field, electromechanical installation and maintenance, and industrial enterprise sectors that use electric power as industrial power or energy. Improved circuit and new safety structure design, more complete functions, higher accuracy, more convenient and reliable operation, equipped with shock-proof sleeve and dust proof, moisture-proof structure, can adapt to the outdoor working environment. During measuring, the testing voltage according to the different models output are available from 100 v / 250 v / 500 v / 1000 v / 2500 v gears to selection. Measuring insulation resistance range max up to 20 gΩ, and has the function of the AC voltage measurement.


ETCR3400B绝缘电阻测试仪ETCR3400A绝缘电阻测试仪


1. Mounting hole

2. Insulation resistance test/stop button(High voltage starting switch): Test / Stop

3. Data hold button: HOLD

4. Function selection switch

5. Instrument outside shell

6. Shockproof cover

7. LCD displayer

8. Backlight switch button: LIGHT

9. High voltage indicator

10. AC voltage "COM" input terminal / insulation resistance measurement shield terminal / battery charger negative terminal

11. Insulation resistance test "EARTH" input terminal ( connect the tested object grounding terminal)

12. AC voltage "V~" input terminal / battery charger positive terminal

13. Insulation resistance test "LINE" input terminal



Function Measurement of insulation resistance, AC voltage
Model ETCR3400B
Max Test Voltage 2500V
Test Voltage Range 250V/500V/1000V/2500V
Resistance Measurement Range 1MΩ~20GΩ
Measurement Accuracy（23±5℃ RH<75%） 1MΩ~200MΩ±(3%×rdg+5dgt)
200MΩ~10GΩ±(5%×rdg+5dgt)
10GΩ~20GΩ±(10%×rdg+5dgt)
Min Resolution 20MΩ: 10kΩ，200MΩ: 100kΩ，2000MΩ: 1MΩ，20GΩ: 10MΩ
Short Circuit Output Current 1mA
Voltage Measurement Range AC   1~750V
Voltage Accuracy ±(2%×rdg+5dgt)
Voltage Min Resolution 1V
Frequency Range 40~400Hz
Power Supply R6AA 1.5V X 6PCS
LCD Size 68×55mm 
Low Voltage Indicator Display“ ETCR 3400B Insulation Resistance Tester"，should replace the battery in time.
Data Hold Data hold function:  "HOLD" key control
Backlight Yes, "LIGHT" key control
Instrument Size 218×122×75mm
Weight About 900g 
Working Temperature -10℃～40℃；below 80%rh
Store Temperature -10℃～60℃；below 85%rh
Suitable Safety Standard Comply with the IEC-1010 double insulation, environmental pollution degree 2 degrees, over-voltage category II safety standard promulgated by the International Electro technical Commission
Model Max Test Voltage Insulation Resistance Range AC Voltage Range
ETCR3400A 1000V 1MΩ~20GΩ 1~750V
ETCR3400B 2500V 1MΩ~20GΩ 1~750V
ETCR3400C 5000V 1MΩ~200GΩ 1~750V

Test Instrument 1 PCS
Test Wire 1 SET
Package bag 1 PCS
Manual, Certification, Warranty Card 1 SET





ETCR3400B
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