Overfill Prevention Controller

Multiple-Point, Optic-Sensing Overfill Prevention Control Unit

  • Interfaces with five-wire optic sensors
  • Used, typically for bottom and top-loading of tank vehicles
  • Mounted at the loading rack/gantry and connects to the vehicle via the Scully plug and cable assembly (sold separately).
  • Features Dynacheck® circuitry for automatic and continuous self-checking of all system components
  • For vehicle ground/earth verification options, consult Scully for information on the Groundhog Self-Proving Grounding System.

Product Description

  • ST-35 models monitor 1 to 8 compartment vehicles. ST-35C models monitor 1- to 12-compartment vehicles.
  • Signals for automatic shut off of product flow within a half-second of detecting a potential overfill condition.
  • Complete compatibility with Scully five-wire optic sensors, IntelliCheck® and Load Anywhere® onboard tank vehicle mounted overfill prevention systems.
  • Will not permit loading under any fault or wet sensor condition.