Installation Guide

Table Of Contents
Testing Procedures
Preparing the Meter
1. Ensure mating surfaces of the jaws are clean and free of corrosion.
2. Press and hold the ON/OFF button for approximately 3 seconds.
3. Verify the clamp-on ground resistance tester enters the self-test mode and displays the
remaining battery life. If the battery does not have enough life remaining to complete the job,
replace the battery as described in the user’s manual.
4. Verify the calibration of the meter with the calibration loop. Refer to the Manufacturer’s
User’s Manual for tolerances.
Measuring Rod/Grid Resistance
Warning! High voltages may be present in and around the point of measurement.
Take caution to avoid serious injury or death.
Testing the Current Measurement
1. Remove any molding that covers the conductor, providing room for the jaws of the clamp-on
ground resistance tester to close completely around the conductor.
23 June 2020 TDC-0971-012 Itron, Inc. Page 132 of 134
CCU 100 and Repeater 100 Installation Guide F Grounding Specifications