An intrinsically safe camera is a safety device that, through special circuit design and material handling, ensures that no electrical sparks, high temperatures, or energy sufficient to ignite explosive mixtures will be generated when used in flammable and explosive environments. Here are its key points:
First, technical principles
1, intrinsically safe explosion-proof technology: by limiting the electrical energy in the circuit (voltage, current, power, etc.), so that the equipment can not produce dangerous energy in the normal or fault state, eliminating the explosion risk from the root.
2, explosion-proof certification mark: China's common certification includes: Ex ib IIC T4 Gb (suitable for chemical, gas environment), Ex ibD 21 T130℃ (dust environment), MA certification (coal mine safety mark).
Second,Design characteristics
1, circuit safety treatment: the power supply, flash and other components of the safety transformation, such as built-in current limiting device, low power LED lamp beads, to avoid circuit overload.
2, material and structure: the use of anti-corrosion, dustproof and waterproof materials (such as IP68 waterproof grade). Integrated structure design, built-in safety type lithium battery, light weight (usually ≤400g), easy to carry.
3, high-performance configuration: support 4K shooting, high pixel CMOS sensor (such as 24.8 million pixels). It comes with anti-shake, large storage capacity (expandable up to 128GB) and wireless transmission (Wi-Fi/ Bluetooth).
Third,Application scenarios
1, dangerous places: such as petrochemical industry, coal mine, gas pipeline, dust workshop and other flammable and explosive environment, for accident forensics, equipment inspection, environmental monitoring.
2, extreme environment adaptation: support -20℃ to 50℃ operating temperature, impact resistance, corrosion resistance, suitable for underwater, high altitude, low temperature and other scenes.
Fourth, the difference with other explosion-proof types
1, vs flameproof type: The safety type is small, light weight, can be opened on site maintenance, but the cost is high. The flameproof type relies on a strong housing to insulate the explosion, is large and requires power failure for maintenance, but costs less.
2, vs positive pressure type: Positive pressure type through continuous inflation to maintain internal pressure, require complex maintenance and poor safety, has been gradually eliminated.
Finally,Typical product examples
Excam1802s: Built-in LED flash, support 4K shooting, IP68 waterproof.
ZHS2478: SLR CMOS sensor, four explosion-proof certification (chemical, coal, dust, MA).
