Common problems and solutions for gauge pressure meters
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May I ask: What are the common problems with absolute pressure gauges and how to deal with them? Thank you
1. The piping must be installed in a proper manner, with no back bends allowed； 2. The pressure guide tube should be as short as possible ； 3. If there is no issue with heat tracing, eliminate the instrument box ； 4. Be careful to prevent leaks when connecting the pipelines.
Answer: 1. The most common problem with absolute pressure gauges is that at low absolute pressures, such as below 3 kPa, many of these gauges exhibit unstable readings that fluctuate frequently, resulting in very inaccurate measurements. 2. The deviation amount is a fixed value, and the handling method is nothing but migration. The condition is that you need an absolute pressure reference table so that you can determine the amount of white bias. 3. The deviation amount is erratic and not constant; there’s no point in trying to deal with it. Even God can’t do anything about it. If anyone wants to try, they can go ahead and break things apart – of course, they can do that. :Lol 4: Once the gauge stabilizes, you won’t have to worry anymore. What’s there to do about errors? What’s so difficult about dealing with errors? Just like passing gas – if you do it and don’t deal with it, the air stays clean too, right? {:2_45:} Only those with evil intentions will take the wrong path and act improperly......
A common problem in our company is the discrepancy between the measured values and the actual values, which is usually caused by blockages in the pressure transfer pipes. What we measure is the negative pressure in the furnace chamber