Extech Clamp-on Ground Resistance Tester

Features & Applications:

Extech Clamp-on Ground Resistance Tester enables non-contact measurements of ground conductors without need for auxiliary ground spikes.

Features:

• Autoranging ground resistance measurements from 0.03ohm to 1500ohm with 0.02ohm resolution
• True RMS AC Leakage current range of 0.2mA to 15.00A with 0.001 mA maximum resolution
• 0.9" (23mm) Jaw size for large ground rods
• Simplifies ground resistance measurements on multiple point ground systems
• Verification resistors confirm accuracy of meter
• Ground resistance measurements down to 0.03% with 0.02% maximum resolution
• Programmable Hi/Lo alarm
• Automatic self calibration when powered on
• 9999 count high contrast LCD display
• Electrical noise detection feature prevents inaccurate readings
• Data hold and continuity beeper
• Complete with 9V battery, resistance check plate and carrying case

Applications:

• Verify resistance of cellular and communication tower ground grids
• Check utility transmission
• Maintenance on electric transportation systems
• Ideal for multiple point grounding systems in sub-stations, factories and office buildings

Spec Summary:

Specifications	Range	Resolution	Accuracy (%rdg)
Ground Resistance:	0.03 to 9.99ohm	0.02ohm	±(1.5% + 0.1ohm)
	10.0 to 99.9ohm	0.1ohm	±(2.0% + 0.3ohm)
	100.0 to 199.9ohm	0.4ohm	±(3.0% + 1.0ohm) typical
	200.0 to 399.9ohm	2ohm	±(5.0% + 5ohm) typical
	400.0 to 599.9ohm	5ohm	±(10% + 10ohm) typical
	600.0 to 999.9ohm	10ohm	Not specified
	1000 to 1,500ohm	30ohm	Not specified
Leakage Current AC:	0.200 to 0.999mA	0.001mA	±(2.5% + 0.05mA)
	1.000 to 9.99mA	0.01mA	±(2.5% + 0.05mA)
	10.00 to 99.9mA	0.1mA	±(2.0% + 0.3mA)
	100.0 to 750.0mA	0.1mA	±(2.5% + 3mA)
	0.20 to 15.00A	0.01A	±(2.0% + 0.05A)
Continuity:	Beep if less than 40ohm (approximately)
Dimensions:	10.2" x 4.4" x 1.9" (258 x 110 x 47mm)
Weight:	24.7oz. (700g)