Motion Sensors / Detectors / Transducers
Shaft Speed Sensor features explosionproof NEMA 4X housing.
Press Release Summary:
Available as integral part of Electro-Sentry1 Hazard Monitoring System or as stand-alone unit, Model FB420 provides 4-20 mA signal directly proportional to rotational speed of monitored shaft. Four-digit LCD, capable of displaying 0.000-9999 rpm or 4-20 mA, facilitates calibration and troubleshooting. Equipped with relay that can be programmed for failsafe over-speed/under-speed alarm, sensor is suited for belt conveyors, drag conveyors, bucket elevators, fans, blowers, and pumps.
Original Press Release:
FB420 Rugged Shaft Speed Sensor
Electro-Sensors FB420 is an integral part of the Electro-Sentry1 Hazard Monitoring System but is also available as a stand alone shaft speed sensor. The FB420 provides a 4-20mA 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 9999. 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.
Housed in a rugged, explosionproof NEMA 4X housing, the FB420 is ideal for detecting shaft under-speed or over-speed on a wide variety of industrial machinery. Typical applications include belt conveyors, drag conveyors, bucket elevators, fans, blowers, crushers, and pumps.
Stand alone or part of the Electro-Sentry1 Hazard Monitoring System
Compact, self-contained system with sensor and switch
Simple installation and calibration
Relay can be set for over-speed or under-speed
Rugged housing is explosionproof and waterproof - NEMA 4X
4-20mA output directly proportional to shaft speed
Provides real time preventive maintenance feedback
Prevents product waste, machinery damage and process downtime
