AEMC 4620 4-Point Ground Earth Resistance Tester

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AEMC 4620 4-Point Digital Ground Resistance Meter

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Part Number: 2130.43

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The AEMC 4620 4-Point Digital Ground Resistance Meter measures soil resistivity and ground resistance. Measures from 0? to 2000? with an auto-ranging feature to automatically seek out the optimum measurement range. Resists vibration, shock, and drops up to par with IEC standards. Denies high levels of interference to ensure accurate measurements.

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Chracteristics:	AEMC 4620 4-Point Digital Ground Resistance Meter
	Uses fall-of-potential method for 2 and 3 point ground resistance measuring
	Uses 4-point method to measure soil resistivity
	Water and dust resistant case
	Auto-ranging feature
	3 Terminals (Color-coded)
	Connect, Press, and Read - Simple operation
	Battery operated
	Rejects high levels of interference and noise
	LEDs designate high auxiliary rod resistance, fault connections, and high input noise
	Capable of bonding and continuity tests

Specifications:	AEMC 4620 4-Point Ground Earth Resistance Tester
Measurement Ranges	0.00 to 19.99Ohm; 20.0 to 199.9Ohm; 200 to 1999Ohm
Resolution	10mOhm (0.00 to 19.99Ohm); 100mOhm (20.0 to 199.9Ohm); 1Ohm (200 to 1999Ohm)
Open Voltage	below 42V peak for all ranges
Resistance Frequency	128Hz square wave (for all ranges)
Test Current	10mA (0.00 to 19.99Ohm); 1mA (20.0 to 199.9Ohm); 0.1mA (200 to 1999Ohm)
Accuracy	+/-2% of reading +/-1ct(0.00 to 19.99Ohm); +/-2% of reading +/-1ct (20.0 to 199.9Ohm); +/-2% of reading +/-3cts (200 to 1999Ohm)
Auxiliary Electrode Influence	Max Res. in Current Circuit: 3kOhm (0.00 to 19.99Ohm); 30kOhm (20.0 to 199.9Ohm); 50kOhm (200 to 1999Ohm)
Power Source	Eight C Cell Alkaline Batteries

Applications:	AEMC 4620 4-Point Ground Earth Resistance Tester
	Three-Point measurements of resistance to ground of ground rods and grids. Three-Point measurements are generally used when the electrode or grid can be easily disconnected, if corrosion is suspected, or where ground faults are unlikely to occur
	Four-Point tests or soil resistivity measurements. Locating areas of lowest soil resistivity is essential for achieving an economical grounding installation
	Touch potential measurements, an alternative to 3-Point tests. A recommended test when the ground cannot be disconnected, where ground faults are highly likely, or when the "footprint" of grounded equipment is comparable to the size of ground to be tested

AEMC 4620 4-Point Digital Ground Resistance Meter

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