What are the reasons why the pressure value from the pressure transmitter does not match the calibrated value?
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The workshop requires a vacuum level of over -90 KPa. Upon on-site verification, it was found that when the standard gauge indicated -90 KPa, the instruments in the workshop could only reach around -50 KPa. This suggests that there is a problem with the instruments. What are everyone’s thoughts?
Is the range appropriate? When everything else is fine.
The question is unclear; what type of gauge is being used? Is it a gauge for absolute pressure? You can use another gauge for comparison, or do you have a standard gauge? What is the measurement range of the instruments in the workshop? If it’s not possible to measure -90 KPa, then use one that can cover the required range. Those who work with instruments are always the ones who are suspected and held accountable, so I think it’s best to be able to identify and analyze the root causes of problems when they arise. Avoid having a ‘hedgehog mentality’ – don’t worry about who is at fault; by doing so, you will become stronger and able to gain the trust of others