AC MITIGATION AND DECOUPLING
Solid State Decoupler (SSD) with Integrated Capacitance Isolator
Survey-ready decoupling engineered for accurate CIS/DCVG data and safer field operations.
Product
The Cathtect SSD with our Survey Isolation Switch is a survey-ready decoupling solution engineered for accurate CIS/DCVG data and safer field operations. Built on the same solid-state architecture as the hazardous SSD, it integrates an external isolation switch that temporarily removes the decoupler’s reactive capacitance from the circuit – eliminating waveform distortion during interrupted surveys while keeping the CP system online. Housed in a customized Fat Fink aluminum test-station enclosure, it delivers precise survey performance, safe operation, and streamlined workflows for integrity teams working under PHMSA Mega Rule requirements. As a modern alternative to legacy decouplers that distort survey signals or require unsafe field bypassing, the SSD + Switch reflects Cathtect’s commitment to solutions designed for today’s operational realities, not yesterday’s limitations.
Product Highlights
• Accurate CIS/DCVG surveys with no capacitive distortion
• Reactive elements isolated without removing or bypassing the decoupler
• CP stays online – DC threshold protection remains active during surveys
• Operator-safe switching with no exposure to live terminals or arcing
• Preserved AC mitigation to avoid voltage spikes during survey mode
• Fault-rated isolation switch matched to the decoupler’s current capacity
• Double-insulated switch design with arc diffusion and venting
• Mounted in a Fat Fink test station for easy access and field durability
• Advanced AC filtering shared across Cathtect’s decoupler family
• Maintenance-free solid-state construction