Explosion-proof sensor works is what Source: Sai Siwei Posted at 2013-6-25 Sensor Networks

For the use of sensors in explosive situations , in order to avoid an explosion, usually chosen with explosion-proof requirements. Explosion-proof sensor has the following three main methods , namely, control explosive gases, control limits and control detonated explosive source following these three methods work done under a brief introduction : 1, control explosive gas works in a sealed explosion-proof cabinets , full of clean gas without explosive gas or inert gas , and keep the box outside the box pressure slightly above atmospheric pressure , the sensor is installed in the box . Type represents a positive pressure -proof method Exp. 2, the control principle is based on the explosion limits Exd GB , Crank Position Sensor housing is designed to flameproof standard housing , instrument design standards by flameproof housing , according to standard sternly design, manufacture and assembly of all management approach to the implementation process , within the housing so that the explosive attack risk Buzhi Yu stimulate housing outer gas explosion. Explosion -proof approach to the design and manufacturing standards extremely harsh, and assembly, wiring and maintenance procedures are very strict. The approach determines the flameproof electrical equipment , instrumentation often very strict operation should power outages , etc., but many cases are also the most useful approach. 3, the control detonation source works by applying barrier to isolate wiring from Engine Temperature Sensors is processed in electricity distribution , will be supplied to the electric field sensors energy can neither be restricted enough to detonate a spark occurs , the instrument can happen enough to detonate exterior temperature rise within safe limits . In accordance with international norms and norms of the country , when the safe side of the gate area of the connected equipment safely attack any obstacle , the real safe way to ensure that the risk -site explosion -proof safe. Need to remind you to consider in choosing the sensor due to the use of different occasions and configuration , on-demand options intrinsically safe , explosion-proof Crankshaft Positioning Sensor and instrumentation , but also to the supplier needs to Ex- certification.