Coupons

The RM4210 and RM4250 can take measurements from one or two CP-protected coupons at a test station.

If you are using a Triton test station with a Triton coupon, refer to Triton Test Station with a Triton Coupon for more information.

The coupons can be wired for the following types of measurements:

One CP-protected Coupon to measure AC and/or DC pipe-to-soil, AC and/ or DC current density, and instant off.
Two CP-protected Coupons, where one CP-protected coupon is used to measure AC 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.