May I ask if there are any inspection standards for pressure transmitters?
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Hello, expert. I would like to ask if there are any inspection standards or specifications for pressure transmitters. This is a hydrogenation plant where the pressures are quite high; removing the transmitters for inspection and then reinstalling them poses certain risks. Moreover, shutting down the operation just to carry out these removal tasks is also very time-consuming. If there are relevant specifications, we will follow them; otherwise, we won’t conduct any inspections. Thank you for your advice
Yes, for details please refer to the \"JJG 882-2004 Calibration Regulations for Pressure Transmitters\"
May I ask how the pressure transmitters in the devices used by experts are calibrated or tested? Are there any relevant records available? Thank you
Pressure transmitters used for safety protection are subject to mandatory calibration, in accordance with the standard JJG882－2004
This post was last edited by xxkhc on 2020-5-28 at 14:02. The current standard is JJG 882-2019 for the calibration of pressure transmitters; it can be downloaded from this website: https://bbs.hcbbs.com/thread-3004154-1-1.html
The pressure transmitter can only be calibrated without being removed; it cannot be standardized as there is no standard pressure source.
JJG 882-2019: Calibration Regulations for Pressure Transmitters – it’s a newly issued standard; worth taking a look at
Pressure transmitters don’t belong to the category of strong pickers, right? But the final inspection cycle is defined as no more than one year – does that mean everything needs to be inspected? How do the experts in companies handle this? Thank you
Internal verification can be carried out within the company, with data recorded in verification sheets; the frequency of such verification depends on the rules set by the company. For items that are not subject to mandatory inspection, external verification is generally conducted during major maintenance cycles. It is not mandatory for companies to do this; generally, they carry out self-verification. Everything was found to be defective.