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Kejit intrinsically safe NAMUR proximity switches are mainly used in equipment and environments that require explosion protection, such as coal mines, petrochemicals, etc. The NAMUR signal is the most widely used intrinsically safe digital input and frequency input standard signal in the world. NAMUR type sensors are intrinsically safe explosion-proof instruments and are usually used in conjunction with isolated safety barriers.
Intrinsic Safety Explosion-proof Technology, the full name of Intrinsic Safety Explosion-proof Technology, is a technology that ensures that electrical equipment does not produce sparks, arcs or overheating temperatures in hazardous environments, thereby preventing explosion accidents.
Intrinsically safe explosion-proof technology is based on explosion-proof engineering principles. Through reasonable circuit design and electrical equipment selection, it can reduce the internal energy, voltage and current of the circuit and achieve the intrinsic safety of electrical equipment. Specific technical measures include:
1. Use intrinsically safe electrical equipment: Intrinsically safe explosion-proof technology requires the use of certified intrinsically safe electrical equipment. These devices limit energy output to ensure that they will not cause an explosion when working in hazardous environments.
2. Use isolation technology: By isolating the power supply and signal lines of electrical equipment, the transmission of voltage and current in hazardous environments can be avoided, thereby increasing the safety of the equipment.
3. Control energy: Use measures to limit current and voltage to control the energy input and output of electrical equipment to reduce the risk of sparks, arcs or overheating temperatures.
4. Regular inspection and maintenance: Conduct regular inspection and maintenance of the intrinsically safe explosion-proof system to ensure its normal operation and maintain the safety performance of the equipment.
Intrinsically safe explosion-proof technology is widely used in high-risk industrial fields such as petroleum, chemical industry, and metallurgy. It improves work efficiency while ensuring the personal safety of workers and the normal operation of equipment.
