Below these three methods work done under a brief introduction

Below these three methods work done under a brief introduction: Control explosive gas works in a sealed flameproof cabinets, full of clean gas does not contain explosive gases or inert gas, and keep the inside air pressure is slightly higher outside air pressure in the tank, the sensor is installed in the box. Type represents a positive pressure-proof method Exp.
Controlled explosion limitations works by Exd GB, Crank Position Sensors  housing is designed to flameproof standard housing, instrument design standards by flameproof housing, according to stringent specifications to design, manufacture and assembly of all management approach to the implementation process, so that the the explosion of the housing seizure 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.Controlled detonation sourceWorks by applying barrier to isolate wiring from Positioning Sensor 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 occur exterior temperature sufficient to detonate the peace within the confines. 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 sensors and instrumentation, but also to the supplier needs to Ex-certification.