300 degree high temperature resistant proximity switch

300 degree high temperature resistant proximity switchXNFY50-M18-EW7

Introduction:

High temperature proximity switch refers to a type of proximity switch that can operate at high temperatures. Using displacement sensors to approach objectsweeklyA switch that achieves the purpose of controlling the on or off of a switch is called a proximity switch.

Working Principle:

The vibrating coil behind the proximity switch induction surface generates an alternating electromagnetic field, and any conductive material entering the magnetic field will be absorbed from the oscillating circuitnengliangAnd eddy currents are generated, and then the attenuation of the oscillator is converted into a switching signal in the output amplifier. Based on this functional principle, all metals can be detected, regardless of whether they are moving or not. High temperature induction switches are not affected by the operating environment of the sensor because the high-frequency magnetic field is not affected by temperature and the magnetic properties inside the detected object.

300 degree high temperature resistant proximity switchXNFY50-M18-EW7

Technical Specifications:

1. Body material: A.B.S

2. Filler: Epoxy

3. Power: 10W

4. Switching voltage: 100 VDC

5. Switching current: 0.5A

6. Collapse voltage: 220 VDC

7. Load current: 1.0A

8. Corrosion resistance: 100 m Ω

9. Insulation resistance: 108 Ω

10. Release time: 0.1 ms Max

11. Sensing time: 0.4 ms Max

Wiring:

1. Two wire system

The two-wire wiring system is particularly simple. Connect the proximity switch and load in series, then connect the power supply. Use a matching detection object substance to approach the proximity switch, and the proximity switch will act.

2. The three wire system leads are color coded

The three wire system leads of the proximity switch have color markings, including the color of the positive power line (red or brown), the color of the 0V power line (blue), and the color of the signal line (yellow or black).

The proximity switch three wire system has two types of wiring, PNP and NPN, so its wiring is different. If it is an NPN type proximity switch wiring, find the proximity switch signal wire, connect the load, and then connect the load to the positive wire of the proximity switch power supply. If it is a PNP type proximity switch, also find the proximity switch signal line, connect the load, and then connect the load to the 0V line of the proximity switch power supply.

Structural form:

Proximity switches can be divided into cylindrical, square, groove, perforated (through), and separated types according to their external shapes. The circular pillar type is easy to install, but its detection characteristics are the same. The detection part of the groove type is on the inside of the groove, used to detect objects passing through the groove. The through type is rare in China, but it is more commonly used in Japan and can be used to assemble small parts such as screws or balls and buoys into water level detection devices.

Related precautions:

1. It is strictly prohibited to connect wires while the power is turned on, and wires must be connected strictly according to the marked colors on the wiring diagram.
2The distance between the sensing surface of the switch and the measured object should be taken as the rated operating distance80]To ensure reliable operation of the switch.3Proximity switches are generally not suitable for series or parallel use. If necessary, it is recommended to use intermediate relays in series or parallel to drive the load.
4DC type switchbixuPowered by a DC regulated power supply, with voltage ripple less than10]（vpp）.
5Binary switch (whether DC or AC)bixuConnect to the power supply after passing through the load, otherwise the switch will be damaged.
6The working voltage of the high-temperature proximity switch is not allowed to exceed its specification value.

Application:

High temperature proximity switches are widely used in industries such as metallurgy, machinery, mining, power, railways, textiles, papermaking, chemicals, plastics, etc. due to their ability to withstand high temperatures and are suitable for certain high demand applications.

Typical applications:

1Cement: Rotary kiln head/Monitoring of operating conditions of grate cooler

2Power plant: Boiler and waste heat boiler combustion monitoring

3Glass: Monitoring of Glass Melting Furnace Operating Conditions

4、 冶金：高炉/Heating furnace condition monitoring

5Petrochemical: Monitoring of various tubular heating furnace operating conditions

6Garbage disposal: monitoring of burner and incinerator operating conditions

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