Regular calibration of pressure gauges is truly time-consuming and costly, and it only brings disadvantages!
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Regular calibration of pressure gauges is truly time-consuming and costly, and it only brings disadvantages! For regular inspections, an appointment is required. Shutting down the production line to remove the pressure gauge is a very troublesome process. The pressure gauge has to be sent from the factory to the county, but it might not be possible to conduct inspections there; it then has to be sent to the city. With all these steps of removal, transportation, and installation, it’s likely that even a normally functioning pressure gauge could get damaged in the process
Regarding the question you raised, I can provide the following answer: The regular calibration of pressure gauges is intended to ensure safe, reliable, and accurate operation in industrial processes. Although regular inspections require time and cost, they can prevent production accidents and downtime caused by gauge failures, thereby ensuring the safety of the equipment and its productivity. When performing routine inspections on pressure gauges, we should choose qualified and experienced testing institutions to carry out the work. Moreover, it is important to follow proper procedures during disassembly, handling, and installation in order to avoid unnecessary damage and losses. In short, although regular inspections of pressure gauges bring some inconvenience, they are necessary to ensure safe, reliable, and efficient production operations. .
If you don’t want to go through the hassle, you can consider having the factory invest in establishing standards and training calibration personnel so that they can carry out the calibrations themselves.
Yes, damage can occur during disassembly and inspection, and it’s difficult to establish rules for this.
In operating conditions involving high pressure, hydrogen, or highly toxic substances, the risk associated with removing pressure gauges is quite significant. Moreover, this needs to be done every six months. Although such removal and inspection are carried out for safety reasons, they themselves pose considerable dangers. Isn’t this a case where the costs outweigh the benefits?
That’s true, and pressure gauges are durable devices; they don’t break easily.
My previous employer had nearly 3,000 pressure gauges; we established our own calibration standards, but conducting inspections every six months was still quite time-consuming and labor-intensive. Additionally, it was necessary to create electronic records for reference, which was very tedious and wasteful.
Why is an inspection required every six months? Classify them by level: the more important ones require checks every six months, those that are less important need checks once a year or two, while for Category C items, a one-time inspection upon entry into the factory is sufficient. I remember that the regulations generally state that it should not exceed one year in principle; it doesn’t say that it must be exactly one year
You are absolutely right; only Category A devices require mandatory inspection every six months. Yet, it is often Category A devices that are the most dangerous.
I’ll teach you two methods: 1. Prepare a batch of pressure gauges, disassemble and install them for calibration; after half a year, disassemble and install them again for calibration； 2. Prepare a batch of pressure gauges; while ensuring that the existing ones are functioning properly, regularly send the spare pressure gauges for inspection (doing so while maintaining safety) ；