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Features:• Self-contained system with sensor and switch • Relay can be set for over-speed or under-speed• Housing is explosion proof and water resistant• 4-20 mA output directly proportional to shaft speed• Provides real-time preventive maintenance feedback• Class I, Div I (C, D) Class II (E, F, G)
The FB420 provides a 4-20 mA signal directly proportional to the rotational speed of a monitored shaft and has a 4 digit LCD display capable of displaying from 0.000 to 9,999 rpm or from 4 to 20 mA, the display is also used for calibration and trouble-shooting. The FB420 has one relay that can be programmed for failsafe over-speed alarm or failsafe under-speed alarm. Typical applications include belt conveyors, drag conveyors, bucket elevators, fans, blowers, crushers, and pumps.
Optional Mounting Magnet: MM-2.00• No Drilling or Tapping Required!• EZ-100 Mounting Bracket REQUIRED for use
