The Marathon fiber optic infrared thermometers (FA1/FA2) measure temperatures from 250 to 3000ºC (482 to 5432ºF). These sensors consist of a rugged fiber optic cable plus optical head assembly connected to an electronics housing containing the detector, processing electronic, internal user interface/LED display, and termination connections for field-wiring. FA1/FA2 permit measurement of targets in harsh industrial environments that are otherwise inaccessible

Features

• Low temperature limits: FA1: 475°C (887°F), FA2: 250°C (482°F)
  
• High accuracy ± 0.3% of temperature
  
• High optical resolution to 100:1
  
• Focus distances down to 100mm (4 in)
  
• Fiber optic assembly withstands 200°C (392°F); NEMA-4 rated
  
• Fast response time down to 10 milliseconds
  
• 0-20/4-20 mA analog output
  
• RS-485 serial output - networkable in any combination of 32 Marathon sensors
  
• Advanced signal processing: Peak Hold and Average
  
• Background radiation compensation
  
• Internal LED display and Marathon user interface
  
• Programmable relay output: temperature setpoint and "failsafe"
  
• Windows Marathon Support Software (operates under Windows 95/98 and NT)

Software