3 pole & 4 pole earthing-resistance test

Test voltage: AC 20V/48V

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Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC

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94Hz/128Hz

Earthing-resistance range

0.02~300k 

0.1  ~ 30k 

0.1  ~20k 

Selective mode   

(3 pole +     /

4 pole+     )

Test voltage: AC 20V/48V

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Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC

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Earthing-resistance range

0.02~20k  

0.1~10k 

Non-auxiliary-polar

mode (      )

Test voltage: AC48V

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Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC

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Earthing-resistance range

0.02~150  

0.1~150 

2 pole R~

Test voltage: AC20V

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Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC

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94Hz/128Hz

Earthing-resistance range

0.02~ 300k 

0.1 ~ 30k  

0.1~20k  

2 pole /4pole R  

Test voltage: DC20V

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Earthing-resistance range

0.02~ 3k 

0.1 ~ 3k 

Interfering voltage

/current/frequency

Interfering voltage: 1~50V DC/AC

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Interfering frequency: 16Hz~400Hz

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Interfering current: 20mA~2A

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Soil resistivity ρ

Test voltage: AC20V/48V

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Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC

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94Hz/128Hz

Range: 0.02·m~1000k  ·m

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RK(wire compensation)

Test voltage: AC20V/48V

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Test frequency: 94Hz/105Hz/111Hz/128Hz/AFC

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94Hz/128Hz

Range:

0.02~30 

0.1~30 

0.1~30 

Test current

≤ 250 mA

≤ 100 mA

≤ 100 mA

Data storage

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USB communication

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