Does the protection box for an explosion-proof differential pressure transmitter also need to be explosion-proof?
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Could any expert among the sea friends help me: if a transmitter is chosen to be explosion-proof, does the protection box also need to be explosion-proof? How should the pressure tap pipe be introduced if an explosion-proof protection box is used?
. The protection box of the flameproof transmitter does not need to be flameproof. An explosion-proof protection box and an explosion-proof instrument box are not the same thing. An explosion-proof protection box refers to a unit that contains various components such as heaters, power supplies, air conditioning systems, lighting fixtures, etc., all of which are designed in accordance with explosion-proof standards; the protection box itself may not be explosion-proof, or it may use gas or positive pressure protection mechanisms. It is commonly used in field instrument kits, such as online analyzers. .
I understand that explosion-proof protection boxes are different from explosion-proof boxes for instruments. Now, customers of flameproof differential pressure transmitters want to add explosion-proof protection boxes for them; I don’t think this is necessary, and it’s quite inconvenient to disassemble and assemble them in case of a failure. So I’m asking for help from everyone. Are there any regulations regarding this?
It’s not necessary; it’s sufficient to take explosion-proof measures at the instrument wiring outlets
Are there explosion-proof instrument protection boxes for those equipped with transmitters? Haven’t seen it yet
High-end brand differential pressure transmitters are generally equipped with both explosion-proof and intrinsically safe certifications; when the climate conditions permit, it is even possible to do without an instrument protection box.
This post was last edited by qugd on 2022-11-7 at 11:28. Consider the climate and environmental conditions at the installation location; protective enclosures are sometimes used to protect against cold, heat, humidity, dew or frost, as well as dust accumulation. An explosion-proof protection box may be needed when certain transmitters do not have the appropriate explosion-proof certification; in such cases, an explosion-proof box that meets the requirements of the surrounding environment is used.
There really are: $, explosion-proof instrument protection boxes
I think the same way, but it’s the customer’s request! ;P