Honeywell 3090A35

VRS SPEED SENSOR 60V 191 OHM to 280 OHM 0.38 ms; Speed Sensor Type:VRS Hazardous

Sensor; 5/8-18 UNF-2A; 60 V p-p (Min.); -73 to 93 degC; 3090A Series

Proximity Sensor Magnetic Automotive 3-Pin

SPEED SENSORS HAZARD LOCATION; Available until stocks are exhausted

Transportation & Industrial Speed Sensor

Explosion Proof VRS Sensor 3-Pin

SENSOR VRS SINE WAVE WIRE LEADS

Speed Sensors Hazard Location VRS 40kHz 122mm

MOSFET N-CH 30V 14.8A/18A 8MLP

Hazardous Location VRS sensors are designed for use in locations where explosion-proof or intrinsically safe sensors are required. Passive VRS (Variable Reluctance Speed) Magnetic Speed sensors are simple, rugged devices that do not require an external voltage source for operation. A permanent magnet in the sensor establishes a fixed magnetic field. The approach and passing of a ferrous metal target near the sensor’s pole piece (sensing area) changes the flux of the magnetic field, dynamically changing its strength. This change in magnetic field strength induces a current into a coil winding which is attached to the output terminals. The output signal of a VRS sensor is an ac voltage that varies in amplitude and wave frequency as the speed of the monitored device changes, and is usually expressed in peak to peak voltage (Vp-p). One complete waveform (cycle) occurs as each target passes the sensor’s pole piece. If a standard gear were used as a target, this output signal would resemble a sine wave if viewed on an oscilloscope. Honeywell also offers VRS sensors for general purpose, high output, power output, high resolution and high temperature, as well as low-cost molded versions.