C.P. Sentinel Series Cathodic Protection Rectifier

• Maintain precise cathodic protection control: Automatically adjusts DC output to maintain the operator-selected potential, current or voltage set point, depending on the configuration.
• Improve measurement accuracy: Potential-control models offer IR-drop-free control to minimize IR-drop error in structure-to-reference electrode potential measurements, where configured and applicable.
• Support stable output: Automatic control provides near-infinite output adjustment steps, with current and voltage control accuracy within ±2% of the set point and potential control accuracy within ±5 mV on applicable models.
• Help protect coated structures: Potential-control models include loss-of-reference shutdown, which turns off DC output if the reference electrode or its connection fails.
• Reduce output overshoot: Anti-spiking circuitry helps prevent current overshoot following interruption cycles, supporting accurate cathodic protection testing.
• Adapt to different installations: Air-cooled and oil-cooled configurations, flexible electrical ratings and optional monitoring equipment help meet a wide range of application requirements.

General Specifications

• Product type: Automatic cathodic protection rectifier
• Available series: Aqua-Line Air, Potential Control, and Current/Voltage Control
• Cooling: Air-cooled or oil-cooled, depending on series
• Control technology: Sentry, VI-Sentry or Tri-Sentry controller, depending on configuration
• Control modes: Potential, constant current and constant voltage, depending on series and configuration
• Output adjustment: Automatic, near-infinite adjustment steps; manual transformer tap adjustment may also be available
• Rectification: Silicon diode or SCR/diode rectification, depending on model
• Transformer: Class H temperature-rated, overcapacity design; minimum 95% efficiency referenced in product documentation
• Electrical protection: Circuit breakers, fusing and overload/short-circuit protection, depending on configuration
• Surge protection: High-energy AC input and DC output surge/lightning protection
• Metering: Configuration-dependent monitoring of DC output voltage, DC output current and, on potential-control models, structure-to-reference electrode potential
• Optional features: Operational status alarms, remote monitoring equipment and other application-specific options

C.P. Sentinel (Air or Oil) Series - Product Data Sheet - ENG

C.P Sentinel Aqua-Line Series - Product Data Sheet - ENG