On-site to control room instrument conversion
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The temperature measurement range for one of the bearing shells of the compressor on-site is 0-150°C, while the measurement range for this parameter in the control room’s automatic protection system is 0-200°C. If the temperature displayed in the control room is 50 degrees, what should be the actual temperature measured on-site? How should this be calculated? Thank you
50/200*150=60 ......
Why do inconsistencies in the range occur?!
If the guy knows, he can explain it, but leaving a website address is considered advertising
Is it really possible to just calculate it directly on a proportional basis?
I wasn’t careful during installation; the team wasn’t professional
This post was last edited by dennyshen2549 on 2015-10-24 at 10:07. Just make the ranges consistent, that’s all. The values displayed on HIS are definitely higher than the actual values; if nothing is changed in this regard,
Work has already started, and it’s not cost-effective to stop; the measurements on site indeed show a low value, so I’m asking for the calculation method and formula
If the temperature is a 4-20MA signal, you can use this formula: X/150=50/200; therefore, X=(50/200)*150=37.5
The measurement ranges of the temperature instruments on-site and those in the control room are both tailored to their respective measurement systems. If an on-site instrument measures 50°C, the instrument in the control room should also display 50°C; there is no issue with conversion, only a matter of the magnitude of measurement error.
One for me! Agreed! Temperature is directly related to mV (thermocouple)! As long as it’s within the range, the display should be the same!