Quotation for imported explosion-proof proximity switch

Introduction to HRCYJ-GB-0524NA Explosion proof Proximity Switch:

1. This product has a compact structure, small weight, and long working life of switch components. It can be installed in limited spaces and is highly suitable for use in miniaturized devices.

2. Widely used in mines with explosive mixtures such as methane and coal dust, and corrosive environments that do not damage insulation.

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.

2. The distance between the sensing surface of the switch and the measured object should be within 80% of the rated operating distance to ensure the operation of the switch.

3. It is generally not suitable to use in series or parallel. If necessary, it is recommended to use intermediate relays in series or parallel to drive the load.

4. The DC switch is powered by a DC regulated power supply, with a voltage ripple of less than 10 [vpp].

5. Binary switches (whether DC or AC) should be connected to the power supply after passing through the load, otherwise the switch will be damaged.

6. The working voltage at high temperatures is not allowed to exceed its specified value.

Selection of KJT-NJ140TS explosion-proof proximity switch:

In environments with good environmental conditions and no dust pollution, photoelectric proximity switches can be used. The photoelectric proximity switch has almost no impact on the measured object during operation.

In anti-theft systems, automatic doors usually use pyroelectric proximity switches, ultrasonic proximity switches, and microwave proximity switches. Sometimes, in order to improve the reliability of recognition, regardless of which proximity switch is selected, attention should be paid to the requirements of various indicators such as operating voltage, load current, response frequency, and detection distance.

1. Select the proximity switch type based on the detected object. If the detected object is a metal, an inductive proximity switch should be selected. If the detected object is a non-metal such as wood, plastic, paper, water, or smaller and thinner metals, a capacitive proximity switch should be selected.

2. The selection of the shape of the proximity switch can be determined according to the installation position of the proximity switch. There are usually cylindrical proximity switches, square proximity switches, and circular proximity switches to choose from. If choosing a cylindrical shape, one should consider the required diameter, and if choosing a square shape, the diameter of the detection surface should also be selected.

3. Selection of sensing distance for proximity switches. Generally speaking, the detection distance of proximity switches is relatively short, commonly ranging from 1-50mm. The longer the detection distance, the larger the detection surface and the higher the price.

4. The position of the proximity switch sensing surface usually includes front-end sensing, upper end sensing, and inner hole sensing options;

5. The selection of wire length for proximity switches, with a standard configuration of 2 meters for connecting cables. If a longer connecting wire is needed, it should be explained to the manufacturer before ordering. However, do not add an extension wire after setting the proximity switch, as this can easily lead to unstable output signals of the proximity switch.

6. The working voltage selection for proximity switch output usually includes DC type DC24V or AC type AC250V options;

7. Selection of output modes for proximity switches, usually including NPN normally open, NPN normally closed, PNP normally open, PNP normally closed, 2-wire normally open, 2-wire normally closed, DC 3-wire and DC 4-wire options;

8. Selection of connection methods for proximity switches, including outgoing, plug-in, and pigtail options

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HRCYJ-GB-0524NA explosion-proof proximity switch is a limit switch designed specifically for potentially explosive environments. Its main function is to monitor the operating status of mechanical equipment, automatically cut off the power supply when it exceeds the safety range, and prevent accidents from occurring. The design of the proximity switch complies with strict explosion-proof standards, can resist potential explosive impacts, and has suppression functions.

working principle

The working principle includes sensors, micro switches, and signal outputs. When the mechanical equipment reaches the preset position, the sensor will sense and trigger the micro switch, thereby outputting corresponding signals to control the mechanical equipment. The proximity switch is also equipped with a fault detection function, which can automatically cut off the power when a fault occurs, ensuring industrial safety.

Product Features

Explosion proof design: Using explosion-proof materials and designs that comply with standards, it can resist potential explosive impacts and ensure safety and reliability in hazardous environments.

Standard testing: capable of achieving high-precision testing and suitable for various sophisticated application scenarios.

Easy to install: The design is simple, the installation is convenient, and it can meet the needs of various mechanical equipment.

Reliable operation: Using materials and technology to ensure long-term stable operation and improve production efficiency.

Practical application of explosion-proof proximity switch

Explosion proof proximity switches are used in industries such as chemical, petroleum, and food processing. In chemical production, it is used to monitor the liquid level and pressure of chemical reactors; In oil extraction, it is used to monitor the depth of oil wells and the speed of drill bits; In the YAO industry, it is used to precisely control the production process of drugs; In food processing, it is used for the safety and control accuracy of food processing machinery.