The grounding resistance tester is a common instrument for testing and measuring grounding resistance,Earth Resistance Tester and is also an indispensable tool for electrical safety inspection and grounding engineering completion acceptance. In recent years,Earth Resistance Tester due to the rapid development of computer technology,Earth Resistance Tester the grounding resistance tester has also penetrated a lot of microprocessor technology , Its measurement function,Earth Resistance Tester content and accuracy can not be compared with ordinary instruments.

At present,Earth Resistance Tester advanced ground resistance testers can meet all ground measurement requirements. Using the new jaw method,Earth Resistance Tester there is no need to pile and pay off for direct online measurement. A powerful ground resistance tester is controlled by a microprocessor,Earth Resistance Tester which can automatically detect the connection status of each interface and the interference voltage and frequency of the ground network,Earth Resistance Tester and has unique functions such as numerical retention and intelligent prompting.

People use the volt-ampere method to measure the grounding resistance. This test is very primitive. Use the ammeter and voltmeter measurement methods. When measuring the resistance,Earth Resistance Tester you must first estimate the size of the current and select an insulated wire of appropriate cross-section. During the preliminary test,Earth Resistance Tester the variable resistance R can be used to adjust the current. When the formal measurement is performed, the variable resistance is short-circuited,Earth Resistance Tester which is obtained by the ammeter and voltmeter. The value of can calculate the ground resistance.

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