All the pressures in PVElite are gauge pressures. OK.
But I donīt know how can I enter in Pvelite a gauge pressure of -5psi, because PVElite doesn't let me write negative pressures. PVElite changes the pressure from -5psi to 5 psi. Is that correct?

Should you need any other detail, please let me know.
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Eduardo Laforga
Mechanical Engineer