In high-temperature, high-pressure, flammable, and explosive environments, having stable and accurate pressure measurement equipment is crucial. The ATEX pressure transmitter is the preferred choice-it not only protects property but also ensures personal safety. This article focuses on introducing ATEX pressure transmitters, gradually exploring ATEX certification and common misconceptions, from understanding the certification to selecting the appropriate explosion-proof pressure transmitter.
ATEX Pressure Transmitter
What is ATEX?
ATEX is not a "technical standard" but a legal framework of the European Union. The term ATEX originates from the French phrase "ATmosphères EXplosibles". It is essentially the EU's mandatory regulatory system for equipment used in explosive atmospheres. It revolves around two key directives: Manufacturers of pressure transmitters must comply with the "2014/34/EU directive", ensuring the design of pressure transmitters meets ATEX standards and certification. End-users of projects follow the "1999/92/EC directive", which involves classifying hazardous zones and specifying how to use explosion-proof pressure transmitters in potentially explosive environments.
Misconceptions About ATEX
Misconception 1: ATEX is a technical standard-without ATEX, installation is illegal.
Misconception 2: With ATEX certification, it can be used in all conditions-exceeding electrical, zonal, or temperature specifications will render the certification invalid.
Misconception 3: ATEX only concerns electronics-it also relates to process connections, diaphragm materials, and sealing structures.
An ATEX explosion-proof pressure transmitter refers to a device designed from the inside out to prevent it from becoming an "ignition source" in a specified explosive atmosphere, thereby avoiding external ignition. It does not mean it can prevent explosions in the environment. Even if the device itself malfunctions, it will not ignite surrounding explosive gases or dust.
LEEG Instruments' safety motto is: "Safety by design at the source." We eliminate risks through engineering thinking. Our ATEX-certified pressure transmitters ensure that the equipment is produced and rigorously tested to prevent internal electrical faults from igniting surrounding gases.
Is ATEX Certification Valid in Other Countries?
While ATEX certification is legally binding within the EU, it is also highly recognized in non-EU countries. This is because ATEX certification is not an arbitrary set of rules but is based on the international explosion-proof standard system "IEC 60079". Its technical logic is globally applicable, its testing methods are widely accepted, and its engineering language is familiar. Therefore, in oil, chemical, and LNG projects in Middle Eastern countries, ATEX is often directly accepted by clients.
LEEG Instruments' pressure transmitters and differential pressure transmitters are all ATEX explosion-proof certified:
