Reference 8-45
8.14.2 Pressure Change Calc. (Leak Rate)
For test types such as Leak Rate, Qualitek mR calculates the leak rate from the
pressure change over time using values derived from the following formulae.
Variable Definitions for the Calculations:
Compensation:
Calibration:
EndMeasure = Measure at the End of a Step
CalRate = Leak Master Leak Value (user-entered value)
Tare = Measure at the Start of a Step
Comp Value EndMeasure
comp
Tare
comp
(using non-leaking master part)–=
Cal Value EndMeasure
cal
Tare
cal
– Comp (using Leak Master)–=
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