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Marathon FR1
 The Marathon FR1 Fiber Optic Two-Color Infrared Thermometer measures temperatures from 500 to 2500ºC (93 to 4532ºF). FR1 units permit measurement of targets in harsh industrial environments that are otherwise inaccessible. The small, variable focus optical head is connected by flexible fiber optic cable to remotely installed electronics housing.
General Specifications:
- Fiber optic cable field replaceable
- Fiber optic assembly withstands up to 200°C (392°F) ambient temperature
- Rugged fiber optic cable, impervious to water and oil, NEMA-4 rated
- Small fiber optic cable bend radius, less than 38 mm (1.5 inches)
- High optical resolutions (>60:1) for measurement of small targets
- One or two-color operation (unique feature)
- Small, compact optical head with focusable optics
- Fast response time down to 10 mSec
- Bi-directional RS-485 communications (networkable)
- Supports up to 32 Marathon Series sensors on a single multidrop network
- Programmable relay output (temperature setpoint or "fail safe")
- Simultaneous analog and digital outputs with user-defined alarms
- Unique "dirty window" alarm
- Marathon DataTemp® software for remote configuration and monitoring
- Field calibration and sensor diagnostics software
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