How to choose a pressure transmitter for an explosion-proof site
First，Introduction
In the chemical production process, a considerable part of the applications need instruments with explosion-proof function to meet the safety requirements of the site. The pressure transmitters of ZKBM have obtained intrinsic safety and explosion-proof certificates, and can be used in explosive hazardous areas. Among them, the explosion-proof pressure transmitter has obtained the Ex d IIC T4/T6 Gb explosion-proof certification, and can work in the hazardous area of Zone 1 or Zone 2. This article will explain how the explosion-proof pressure transmitter used in explosion-proof site.
Second, the explosion-proof system
Explosion-proof instrumentation is essentially designed to meet the GB3836.2 standard mechanical enclosure to ensure that the enclosure can withstand the explosion of the internal explosive gas mixtures of explosive pressure, and can prevent the internal explosion to the outside world.
Explosion-proof systems are distinguished from intrinsically safe systems by the fact that they do not require power-limiting devices such as safety barriers and can be used independently. Intrinsically safe equipment is usually a two-wire device, by limiting the power to achieve the purpose of explosion-proof, so the intrinsically safe equipment from the power supply side of the power is very limited. For devices that consume more power, they are usually explosion-proof so that more energy can be obtained, and explosion-proof instruments can be used independently as stand-alone devices with no requirement for cables, while intrinsically safe devices require the use of intrinsically safe cables. In addition to not being able to work in Zone 0, explosion-proof instruments have a greater cost advantage over intrinsically safe instruments.
The pressure transmitters of Microcyber have already obtained the explosion-proof and intrinsically safe way of explosion-proof certification, of which the explosion-proof certification has taken the Ex d IIC T4/T6 Gb certification requirements, and can be widely used in a variety of industrial sites as well as the explosion-proof requirements of the occasion.
