Mine magnetic proximity switch

Magnetic sensor CKG-S1 proximity switchIt is a magnetic proximity switch circuit design that uses high anti-interference technology to reduce signal false alarms. The sensor is installed on the switch end face, and the entire circuit is made of epoxy resin cured in the switch housing. It consists of a magnetic sensor, electronic circuit, and output switch. When the magnetic field enters the sensitive area of the magnetic sensor, the switch is activated by the magnetic field, and the output switch signal reflects the detected position and motion direction, which serves as the travel position signal of the control system.

The CKG-S1 magnetic proximity switch is composed of a magnetic sensor, electronic circuit, and output switch. When the permanent magnet of the magnetic detection object enters the sensitive area of the magnetic sensor, the switch is activated by the magnetic field, and the switch signal is output. This signal reflects the position and direction of the detection object, and can be used as the travel position signal of the control system. By adopting fault-tolerant hot backup and high anti-interference technology, high technical indicators and performance have been achieved, making it suitable for mines with relatively fixed lifting containers. The protection level is above IP67, explosion-proof, waterproof, and anti smashing, and it can work safely and reliably in the mine shaft without maintenance. It can be used in conjunction with various automatic electrical control equipment to provide corresponding acceleration, deceleration, and positioning signals for mining electrical control equipment. Thus effectively improving the automation and positioning accuracy of electronic control.

Magnetic sensor CKG-S1 proximity switchDue to the use of magnetic induction principle, the impact caused by any electric field interference is fundamentally solved. This series of switches has a large operating distance, strong anti-interference performance, good sealing performance, stable and reliable magnetic force, and a hemispherical working characteristic. It is easy to install, has a long service life, and can work in high temperature, high temperature and other harsh environments. They are widely used in steel rolling, coking, shipbuilding, mining, lifting, transportation and other fields as position control switches, or to replace the original slide contactor mechanical limit switches. They are domestically produced products that replace imported foreign products and are ideal components for achieving contactless transmission of control signals

working principle
This switch is composed of a static magnetic switch and a moving control magnet. It adopts the principle of magnetic induction to make the internal switch move, achieve the purpose of contact on/off, and control the external circuit. (The contact of the switch is amplified by special power to increase the switch capacity, without the need for a separate power source), overcoming the characteristics of poor contact and easy damage of mechanical collision switches.

Technical Specifications

1. Technical indicators

(1) The output signal of the proximity switch: when the contact is conductive, the voltage drop should not exceed 0.5V (with a current of 1A injected); when the contact is disconnected, the output resistance should not be less than 100K Ω (for example, applying a voltage of 12V DC);

(2) Contact form: normally open, normally closed, normally open+normally closed;

(3) Action point distance: not less than 120mm; (120-150)

1) Technical indicators
a) Rated voltage of explosion-proof proximity switch: 220V/1A (resistive load);
b) Explosion proof proximity switch contact method: normally open;
c) High relative speed between explosion-proof proximity switch and magnetic steel: 15m/s;
d) Is the suction distance between the explosion-proof proximity switch and the magnetic steel ≤ 120? Is the release distance ≥ 200? (Magnetic field on the surface of magnetic steel ≥ 1300GS).
2) Environmental conditions and precautions for use
a) Surrounding environmental temperature: -5 ℃ to+60 ℃;
b) Atmospheric pressure: 80KPa to 106KPa;
c) Relative humidity: ≤ 95% (+25 ℃);
d) Atmospheric pressure: 80KPa to 106KPa;
e) In situations where there is no significant vibration or impact;