Pressure unit conversion
bar, psi, kPa, MPa, atm, Pa, mbar, mmHg, kg/cm2, mmWC, inWC. Factors copied from the app unit screen.
OpenCalculators
Gauge, absolute, and vacuum
Values in bar. Default atmosphere 1.01325 bar, matching PressureRefCalc.
OpenPressure to head
Head in metres from pressure, density, and gravity. h = P / (density x g).
OpenHydrostatic pressure
P = density x g x height. Output in kPa.
OpenLRV, URV, and span
Span = URV - LRV. Equal limits are rejected. Five calibration points are listed.
OpenPercentage of span
Percent = (PV - LRV) / (URV - LRV) x 100.
OpenPressure to 4-20 mA
mA = 4 + percent x 16 / 100. Below 3.8 mA or above 20.5 mA is flagged, as in the app.
Open4-20 mA to pressure
PV = LRV + ((mA - 4) / 16) x span.
OpenCalibration error
The Pressure app has no separate calibration-error calculator.
OpenPercentage error
The Pressure app has no separate percentage-error calculator.
Open