Placing the electronic equipment and tools in hazardous areas can be very dangerous and the risk of accidents increases manifold in such situations. The explosion-proof transmitters are embedded within the explosion and flameproof housing. The use of these transmitters is common in the Zone 1 and Cone 2 designated hazardous areas as per the ATEX classification, and in Class 1, 2 and 3 areas as per the classification standards of North America. Explosion proof panels are also used in unsafe and hazardous areas.
The Housing of Explosion-Proof Pressure Transmitters:
Also called as the Ex-D pressure sensor, it is mandatory for the transmitters to have an explosion proof and flameproof housing/enclosure. It is also good to use the explosion-proof control panels. Therefore all the electrical components of the transmitter are mounted within the housing. This housing ensures that even if fire or explosion occurs within the sensors, the flames do not reach to the outside of the enclosure.
The Importance of Choosing the Explosion-Proof Transmitters:
Because of their explosion-proof housing, the transmitters are quite safe and reliable and do not cause a threat to the adjoining environment. Their merits are given below.
Cooling down the gases:
The transmitters and their housing also contain the flame paths through which the burnt and hazardous gases (which emanate because of an explosion) can be cooled down, while they exit the enclosure. Therefore these gases do not have the heat and temperature to be a threat to the external hazardous environment and components that carry the risk of explosion even due to minor ignition/heat. In many cases, the external environment may have the fuel-air mixture that may be combustible easily. The parts of the housing are specifically designed to be narrow and long enough for cooling the gases comprehensively, and which ensure the safety of the whole process and the applications.
Adequate thickness to prevent heat transmittance:
The explosion-proof pressure sensors are also required to have housing with an adequate thickness, which may help towards avoiding the transmittance of heat in the event of an explosion. A large amount of heat may be generated because of an explosion within the housing and an adequate housing thickness will ensure that no heat is transmitted to the external surroundings.
The safe-pressure transmitter can also be used in constraint areas and have tremendous applications for the oil and natural gas industry, petrochemical processes, chemical industry, tracking system, machine building, and in other areas. Apart from having the explosion-proof housing, you should also look for qualities like resistance towards pressure spikes, vibration, moisture ingress, and others.
It is important for you to select and choose a reliable and credible manufacturer and supplier of the explosion-proof pressure transmitters. Use of good quality materials, and quality checks and quality assurance would only ensure that the sensors and their housing are fully functional and perform with excellence in the face of adversities such as explosions and flames. Fortunately, there are leading suppliers providing to you world class explosion-proof pressure transmitters and the custom hazardous area control systems online at relatively very affordable price.