The range displays from 0-10 kPa to 0-4 MPa; can it measure negative pressure?
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The range displays from 0-10 kPa to 0-4 MPa; can it measure negative pressure? If possible, what is the range of negative pressure?
It shouldn’t be possible; the range starts at 0. If it’s possible to measure negative pressure, then there would be no need for a vacuum gauge
No way! Generally, it starts at -0.1MP!
It is possible to measure negative pressure using a pressure transmitter, but it cannot operate in a negative pressure condition for long periods, as this will damage the diaphragm. The range can be set as low as -10KPA to 0KPA!
It can be measured, but only for a short period of time; if the time is longer, the diaphragm may not be able to return to its original position. This approach is not worth it, so it’s best to use it with caution. Moreover, the negative pressure should be as low as possible.
It can be measured, but it’s not used in a standardized manner
Experts say that it’s better to use a vacuum gauge, hehe
Negative pressure cannot be measured. A vacuum gauge or vacuum pressure gauge should be used to measure negative pressure.