Clamp-On Ground Resistance Tester Enables non-contact measurements of ground conductors Without the need for auxiliary spikes Features: * Autoranging ground resistance measurements from 0.03 to 1500 with 0.02 resolution * True RMS AC Leakage current range of 0.2mA to 30.00A * Programmable datalogging with 116 data points * Programmable Hi/Lo alarm * 0.9" (23mm) Jaw size for large ground rods * Simplifies ground resistance measurements on multiple point ground systems * Auto power off * Verification resistors confirm accuracy of meter * Automatic Self Calibration when powered on * 9999 Count LCD display with Data Hold * Electrical Noise Detection feature prevents inaccurate readings * Data hold * Complete with 9V battery, Resistance check plate, and durable metal storage case Specifications Ground Resistance AC Leakage Current (Trms) Verify resistance of cellular and communication tower ground grids Resistance Test Frequency Dimensions Weight Range Resolution 0.025 to 0.25 0.002 0.250 to 1.000 0.02 1.001 to 9.999 0.02 10.00 to 50.00 0.04 50.01 to 99.99 0.04 100.0 to 200.0 0.4 200.1 to 400.0 2 400.0 to 600.0 5 600.1 to 1500 20 0.300 to 1.000mA 0.001mA 1.00 to 10.00mA 0.01mA 10.0 to 100.0mA 0.1mA 100 to 1000mA 0.1mA 0.20 to 4.00A 0.01A 4.00 to 30.00A 0.01A 1.667kHz 10.2 x 4.4 x 1.9" (258 x 110 x 47mm) 24.7oz (700g) Accuracy (%rdg) (1.5% + 0.05 ) (1.5% + 0.05 ) (1.5% + 0.1 ) (1.5% + 0.1 ) (1.5% + 0.5 ) (1.5% + 0.5 ) (5.0% + 5 ) (10% + 10 ) 20% (2.0% 0.05mA) (2.0% 0.03mA) (2.0% 0.3mA) (2.0% 0.3mA) (2.0% 0.03A) (3.0% 0.03A) Ordering Information: 382357 ........ Clamp-On Ground Resistance Tester 382357-NIST Clamp-On Ground Resistance Tester with Calibration Traceable to NIST. www.extech.com Specifications subject to change without notice. 10/11/10 - R1 Copyright (c) 2007-2010 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.