Selection of absolute pressure transmitter range
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There is a distillation kettle. When distilling, the negative pressure is -0.09MPa to -0.06MPa. There is no distillation and the pressure is normal when feeding. Is it sufficient to choose an absolute pressure of 0-0.1MPa for this range, or do I need to choose a slightly larger range of absolute pressure 0-0.15MPa? What is the reason? Thank you.
No, absolute vacuum is only about -100KPA
The measuring range should be larger, choose absolute pressure 0~120 or 150kPa
As far as I know, the maximum range of the absolute pressure meter is only 100KPA. Where can I get a 0.15MPA absolute pressure meter?
Only 0-0.1MPa can be selected, and there is no -0.15MPa absolute pressure transmitter.
0-0.1MPa is enough, there is no need to deliberately choose a large one. Choosing a larger value will result in greater error. Even if it is too large to measure, the instrument will not be damaged. Today's instruments have a strong ability to withstand overpressure.