ETCR EM3300B Large Scale Grounding Grid Earth Resistance Tester, also known as earth Grid grounding impedance tester, variable frequency earth resistance tester, earth Grid tester, which is used for substation ground network, power plant, microwave station, communication base station and other large ground network grounding parameter measurement. The tester is powerful, can test power frequency character parameters of power frequency grounding impedance, grounding conduction resistance, soil resistivity, step voltage, contact voltage, and potential gradient, etc.

ETCR EM3300B Large Scale Grounding Grid Earth Resistance Tester is manufactured according to the JJG984-2004 Grounding Conduction Verification regulation, DL/T475-2006 Grounding Device Characteristic Parameters Measurement Guidelines, DL/T845.2-2004 Resistance measuring Device General Technical Conditions Part ll: Power Frequency Grounding Resistance Tester. The instrument has unique grounding pile, cable diagnostic function and self-checking function to ensure the accuracy of test result. And the instrument also adopt with super strong automatic frequency conversion anti-interference technology, match with 400V/5A high-power output can accurately measure the power frequency data of below 50Hz under strong interference environment.

ETCR EM3300B Large Scale Grounding Grid Earth Resistance Tester has storage, time function,automatically record 1000 groups test result containing date & time, through USB interface can upload the test data to the PC safety, making the historical data can be read, checked, saved and printed, etc.

1.Comprehensive measure the power frequency characteristic parameter of large grounding grid earth resistance.

2.Output current 1A~5A, voltage 400V，automatic frequency conversion and hardware and software filtering technology, which makes the instrument with max. anti-interference, ensuring the data stable and reliable.

3.With test function of current pile and voltage pile, which is used to diagnose the fault of poor connection of line contact and poor grounding between voltage pile and current pile.

4.Self-checking function, Equipped with 0.5Ω standard resistor for self-checking at any time to ensure the accuracy of the test result.

5.Alarm function: setting alarm threshold

6.Memory: data storage 1000 groups

7.USB interface, data upload function.

8.Bluetooth communication

9.Built-in printer