RM4210 Wiring Guide
January 2019
11
Two CP-protected Coupons
These instructions detail how to wire two CP-protected coupons, where one CP-protected coupon is
used to measure AC and/or DC pipe-to-soil, DC current density, and instant off, and the second CP-
protected (AC coupon) is used to measure AC current density. Refer to the following figures for
reference.
Figure 1-1. RM4210 Wiring Harness