907 XP HALL EFFECT

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Explosion Proof Shaft Speed Sensor - Hall Effect

Features

• Square-wave pulse frequency output, NPN open-collector
• Zero speed operation with no signal loss
• 5-24 VDC powered
• Non-contact, large gap distance sensing
• Bidirectional (quadrature) option
• Works with Electro-Sensors magnetic pulser discs / wraps
• Optional Mounting Bracket Assembly and Mounting Magnet
• Class I, Div I (D) Class II, Div I (E, F, G) Class III
• XLB-3 enclosure

907 XP sensors are used in applications requiring hazardous location ratings, or in applications where the sensor may be subject to abuse. It has a 1-inch NPT conduit opening for wiring, terminal strip for wiring, and is provided with a mounting bracket and 10 ft of cable. The quadrature (bidirectional) option has two sensors and is designed for applications requiring both speed and direction information. Specify vertical alignment when the magnets will pass vertically in front of the sensor face, and horizontal alignment when the magnets will pass horizontally in front of the sensor face.

These speed sensors use magnet-sensing Hall Effect IC's to produce a digital pulse signal to interface with speed switches, tachometers, counters, signal conditioners, or PLC's. Hall Effect sensors provide true zero speed operation with square-wave output and immunity to electrical noise.

A pulser disc or split collar pulser wrap with embedded magnets is mounted on the monitored shaft. As the shaft rotates, the magnets pass in front of the sensor causing the sensor to switch high and low, thus producing a digital pulse output. The sensors provide a digital square wave signal with a 50/50 duty cycle when used with pulse generators that have evenly spaced magnets of alternating polarity, such as Electro-Sensors Model 255 Pulser Disc. The recommended gap distance between the sensor and pulse generator is 1/4 inch +/- 1/8 inch. The gap flexibility makes the sensors tolerant of vibration, shaft run-out, misalignment, and industrial environments.

906 HALL EFFECT

 

Shaft Speed Sensors - Hall Effect

Features

• Square-wave pulse frequency output, NPN open-collector
• Zero speed operation with no signal loss
• 5-24 VDC powered
• Non-contact, large gap distance sensing
• Simple to install and set up
• Bidirectional (quadrature) options
• Works with Electro-Sensors magnetic pulser discs / wraps
• Optional Mounting Bracket Assembly and Mounting Magnet

Model 906 sensors are water resistant and suitable for industrial applications, including environments where dirt, dust, grease, or moisture are present. The 906 standard sensor has a threaded aluminum body, and is supplied with a mounting bracket and 10 ft of cable. The quadrature (bidirectional) option has two sensors and is designed for applications requiring both speed and direction information.

FB420

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Shaft Speed Sensor with Relay

Features
  • Self-contained system with built-in speed sensor and speed 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 Electro-Sensors FB420 speed sensor 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 for Speed Switches and Speed Sensors include belt conveyors, drag conveyors, bucket elevators, fans, blowers, crushers, and pumps.

SERIES 18

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Shaft Speed Sensor

Features

• FM Approved Intrinsically Safe (IS) Class I, Div 1, A → D; Class II Div 1 E→G; Class III A Ex / Ex ia II c
• NEMA 4X, IP 65

Options:

• Housing
  Basic corded
  M12 Eurofast connector
  ½ NPT female conduit port
  ½ flex liquid-tight conduit fitting
• Sensing (Hall Effect, Magnetoresistive)
• Signal (single or quadrature)
• Output (NPN or PNP)
• Termination (open-collector or terminated)
• Cable length
• Temperature (standard or wide temperature)

ST420-LT / ST420-DI

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4-20 mA Shaft Speed Sensors

Features
  • 2-wire, loop-powered 4-20 mA analog output
  • No user calibration: works right out of the box
  • Works with shaft-mounted pulser targets (disc/wrap)
  • Rugged stainless steel M18x1 housing
    with integral conduit attachment
  • Reverse-wiring protected
  • FM approved, Dust-Ignition-Proof Class II, Div I (E, F, G)
  • NEMA 4X, IP65

ST420-LT             Integral ½ in flexible liquid-tight conduit fitting
ST420-DI              Integral ½ NPT female conduit port

The patented ST420-LT and ST420-DI detect passing magnets of a shaft-mounted pulser disc or wrap and output a smooth, continuous 4-20 mA analog signal in direct proportion to shaft rotation speed.

1101 HALL EFFECT SENSOR

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Stainless Steel Hall Effect

Features

•   NPN open collector, square-wave output
•   Zero speed operation with no signal loss
•   Non-contact, large gap distance sensing 
•   Signal transmits up to 1,500 ft 
•   Simple to install and set up
•   Powered by 5-24 VDC

The 1101 Hall Effect sensor has a non-threaded stainless steel body, is supplied with a mounting bracket and 10 ft of 3-conductor shielded cable. It is commonly used with pulser discs or 60 pulse/rev magnet wheels.

These speed sensors use magnet-sensing Hall Effect IC's to produce a digital pulse signal to interface with speed switches, tachometers, counters, signal conditioners, or PLC's. Hall Effect sensors provide true zero speed operation with square-wave output and immunity to electrical noise.