Diagnosis
If the gas pressure is to be determined from the gas pressure area, youcan only enter data in the Gas pr.correctn field. The followingentries cannot be maintained: from-measured pressure, to-measuredpressure, and measured pressure proration.
The Joule-Thomson effect is an exception to this rule.
If you want to calculate the Joule-Thomson effect, you must selelct theJoule-Thomson field. The difference in pressurebetween the initial pressure and pressure at register isused to correct the gas temperature.
In this special case the Gas press. det. field isused to determine the initial pressure using the entry ingas pressure area.
In this special case the pressure at the register can only be entereddirectly in the register.