EXTECH 382357 User Guide

www.extech.com

10/11/10 - R1

Enables non-contact measurements of ground conductors

Without the need for auxiliary spikes

Clamp-On Ground Resistance Tester

Ordering Information:

382357 ........ Clamp-On Ground Resistance Tester

382357-NIST Clamp-On Ground Resistance Tester with Calibration Traceable to NIST.

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

Verify resistance of cellular and communication tower ground grids

Specifications Range Resolution Accuracy (%rdg)

Ground Resistance 0.025 to 0.25 0.002 ±(1.5% + 0.05 )

0.250 to 1.000 0.02 ±(1.5% + 0.05 )

1.001 to 9.999 0.02 ±(1.5% + 0.1 )

10.00 to 50.00 0.04 ±(1.5% + 0.1 )

50.01 to 99.99 0.04 ±(1.5% + 0.5 )

100.0 to 200.0 0.4 ±(1.5% + 0.5 )

200.1 to 400.0 2 ±(5.0% + 5 )

400.0 to 600.0 5 ±(10% + 10 )

600.1 to 1500 20 ±20%

AC Leakage Current (Trms) 0.300 to 1.000mA 0.001mA ±(2.0% ± 0.05mA)

1.00 to 10.00mA 0.01mA ±(2.0% ± 0.03mA)

10.0 to 100.0mA 0.1mA ±(2.0% ± 0.3mA) 100 to 1000mA 0.1mA ±(2.0% ± 0.3mA)

0.20 to 4.00A 0.01A ±(2.0% ± 0.03A)

4.00 to 30.00A 0.01A ±(3.0% ± 0.03A) Resistance Test Frequency 1.667kHz Dimensions 10.2 x 4.4 x 1.9" (258 x 110 x 47mm) Weight 24.7oz (700g)