The KJT-E12S-LY series Variable Reluctance Speed (VRS) sensors consist of an iron core, an inductive coil and a permanent magnet. A ferrous pole wheel passing the sensor face changes the magnetic field strength, resulting in an AC Voltage being induced in the coil. The frequency of the output signal is proportional to the speed of the moving target. The amplitude of the signal depends on speed, air gap, geometry of the target, magnetic properties of the target material and the electrical load. VRS sensors, also known as passive or electromagnetic sensors, do not require an external supply.
Signal Output: the signal frequency is proportional to the target speed
Thread Length: 2.0" M12x1 thread
0-20 kHz Frequency Range
Housing: M12x1, tightening torque: max. 12 Nm
Connection: 39" Cable with open leads, 3-wire, AWG22, stranded wires, elastomer isolation, green casing
Coil Inductance: 170 mH +/-10% at 1 kHz
Coil Resistance: 850 Ohm +/-10%
Coil Magnet Polarity: North pole towards front face
Operating Temperature: -104-257°F (-40-125°C)
Protection: IP68 (Sensor) / IP67 (Cable)
Insulation: housing and electronics galvanically isolated (Test: 500V, 50 Hz for 1 minute)
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