8580 Diagnostic Opti-Therm

Opti-Therm rack monitors are used to automatically recognize the type of overfill system (optic or thermistor signal technology) that is being used on a transport. When connected to the transport, the monitor checks the status of sensors within tanks or compartments. Overfill detection systems, such as the 8580, provide automatic warning of product overfill detection at predetermined levels and warn of a pending overfill condition.


  • Automatically recognizes the type of overfill system (optic or thermistor signal technology)
  • Diagnostic capabilities including ground verification, permissive status and compartment identification; mode of operation appears on LED screen
  • The 8580 high-tech system limits the possibility of errors
  • Can be used on systems that include up to twelve optic and eight thermistor sensors
  • Separate output relays for overfill and ground verification result in superior flexibility and safety
  • Easy-to-read, high-resolution 3" x 5" LED diagnostic display
  • Monitors overfill status and sends shut-down signal to terminal-automation system


  • Operating Temperature: -40ºF to 140ºF (-40ºC to 60ºC)
  • Input Requirements: 120 VAC 60 Hz, 15VA (Standard); 240 VAC available
  • Output Relay Contacts: 240 VAC–5A DPDT
  • Response Time: 0.5 seconds maximum, dry to wet transition
  • Electrical Connections: Internal Terminal Strips
  • Enclosure: NEMA 4 explosion-proof, Class 1, Div. 1, Group D
  • Housing Material: Aluminum
  • Approximate Weight: Model 8580 – 43 lbs.
  • Approvals: UL, CUL (Canada); CENELEC (Europe)


Plug and Cord Sets

Safety, reliability, corrosion resistance and long product-cycle life are all benefits when specifying Civacon Plug & Cord sets for your terminal loading systems. To top it off, the products are very easy to use and handle.


  • Lightweight, molded plug for ease of use/handling
  • Stainless steel interlock screw
  • Heavy gauge spring behind contact pins to ensure strong, reliable electrical connections
  • 3/4" opening provides easy replacement of the plug or cord, saving you time and money!


  • High-visibility, 30 feet, coiled cord for ease of use and safety
  • 18-gauge, tinned wire for corrosion resistance and long life