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ST-35 Multiple Point Optic Sensing Overfill Prevention Controller

Brand: Scully Signal Company

The Scully overfill prevention system interfaces with optic sensors. It is typically used for bottom and top-loading of tank vehicles. It is mounted at the loading rack/gantry and connects to the vehicle via the Scully plug and cable assembly. The attached plug and 30’ coiled cable connect to the vehicle mounted receptacle, or socket, which is wired to the refueler sensor. 

Please consult Scully for alternate plug and socket styles to prevent mixing AV gas and jet fuels in dedicated refuelers. 

The ST-35 system provides the vehicle with an adequate static ground path to the rack/gantry provided the vehicle’s overfill equipment is wired and maintained to factory specifications. For additional ground/earth verification options, consult Scully for information on the Groundhog Self-Proving Grounding System.
Features
  • Maximum safety with Dynacheck® automatic and continuous self-checking circuitry
  • Will not permit loading under any fault or wet sensor condition
  • Signals for automatic shut off of product flow within a half-second of detecting a potential overfill condition
  • Complete compatibility with Scully IntelliCheck® and Load Anywhere® onboard systems and independent five-wire optic sensors
  • Easy connection to vehicles with rugged, versa-tile plug and cable units. 
  • ST-35 models monitor 1 – 8 compartment tank vehicles while the ST-35C models monitor 1 – 12 compartment tank vehicles
  • Approved by Factory Mutual (FM)

1 - 10 of 10 Part Numbers
07901
07901
ST-35-115-EL Multi-Point Optic Controller
07903
07903
ST-35-115-ELK Multi-Point Optic Controller
07931
07931
ST-35-240-ELK Multi-Point Optic Controller
08139
08139
SC-6W Sculcon Junction Box Kit, Blue Plug, Blue Straight Cable, 20'
08159
08159
SC-6W Sculcon Junction Box Kit, Blue Plug, Blue Coil Cable, 30'
08160
08160
SC-6AO Sculcon Junction Box Kit, Blue Plug, Blue Straight Cable, 20'
08161
08161
SC-6AO Sculcon Junction Box Kit, Blue Plug, Blue Coil Cable, 30'
08647
08647
Replacement Parts - Module Assembly: ST-35C-240 Multi-Point Optic Controller
08674
08674
SC-6W/D Sculcon Junction Box Kit, Blue Plug, Blue Coil Cable, 30', w/ Deadman
08808
08808
Replacement Parts - Module Assembly: ST-35C-115 Multi-Point Optic Controller
1 - 10 of 10 Part Numbers

Specifications

Response Time

  • 0.5 s Max.

Operating Temperature

  • -40° to +60° C (-40° to +140° F)

Power Requirement

  • 100-130 Vac, 50/60 Hz, 20 W Max.
  • 200-250 Vac, 50/60 Hz, 20 W Max.

Connection

  • Provided by Internal Terminal Strips

Output Relay

  • One Normally Open Volt-free Contact, Rated 250 Vac 5 A Resistive
  • Energized When the Sensors Are Dry

Output Control Fuse

  • Internal 5 A

Certifications & Approvals

  • ST-35: FM for Use in Class 1, Div. 1, Group D Hazardous Locations
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