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Cyclone 100, 100 cm2 Steel Cylindrical Coupons by Farwest Corrosion

Cathodic protection coupons are a simple, size-specific piece of metal with one or more wires attached and are used for evaluating corrosion control or cathodic protection systems protecting a structure, typically a steel pipeline. These measurements include: Native or unprotected structure-to-soil potentials Structure-to-soil potentials with the CP system energized Structure-to-soil potentials with the CP system interrupted To emulate an “OFF” structure-to-soil potential without interrupting CP current, typically referred to as a “Coupon Interrupt” reading For magnitude measurements of AC current density on a structure with known induced AC issues Cyclone-100 Coupon Details The "Cyclone-100" steel C.P. coupon is a 100 cm2 "barrel" or cylindrical coupon common in C.P. testing.  The larger surface area of the coupon may provide better coupon-to-soil contact upon burial, which is an important consideration for testing. The coupon is mounted inside a durable PVC housing and the Cyclone-100 is provided with a dual length of #12 AWG stranded copper cable with RHH/RHW direct burial insulation, typically green in color.

Created by: Pipeline Corrosion Control

Last updated 11/2025

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Description

Cathodic protection coupons are a simple, size-specific piece of metal with one or more wires attached and are used for evaluating corrosion control or cathodic protection systems protecting a structure, typically a steel pipeline. These measurements include: Native or unprotected structure-to-soil potentials Structure-to-soil potentials with the CP system energized Structure-to-soil potentials with the CP system interrupted To emulate an “OFF” structure-to-soil potential without interrupting CP current, typically referred to as a “Coupon Interrupt” reading For magnitude measurements of AC current density on a structure with known induced AC issues Cyclone-100 Coupon Details The "Cyclone-100" steel C.P. coupon is a 100 cm2 "barrel" or cylindrical coupon common in C.P. testing.  The larger surface area of the coupon may provide better coupon-to-soil contact upon burial, which is an important consideration for testing. The coupon is mounted inside a durable PVC housing and the Cyclone-100 is provided with a dual length of #12 AWG stranded copper cable with RHH/RHW direct burial insulation, typically green in color.Coupon Ordering Information Specify the Cyclone-100 steel coupon Choose a cable length of 25, 50, 75 or 100 feet. (Note that a dual cable is standard for this coupon) Select a cable insulation color (green is the Farwest standard) such as white, blue, orange, etc. Cyclone-100 Dual Cable Lead    
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