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Marathon FA1/FA2
 The Marathon fiber optic infrared thermometers measure temperatures from 250 to 3000ºC (482 to 5432ºF). FA1/FA2 units permit measurement of targets in harsh industrial evironments that are otherwise inaccessible. Each sensor consist of a small, variable focus optical head connected by flexible fiber optic cable to remotely installed electronics housing.
General Specifications:
- 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 AverageBackground radiation compensation
- Internal LED display and Marathon user interface
- Programmable relay output: temperature setpoint and "failsafe"
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