Volume Correction Factor Procedure for Installs With Gauge Corrected Meters

Question

I am trying to set-up a VCF for installations meters that self correct for guage pressure.  However, the installations do not correct for altitude/air pressure, i.e. they are not absolute pressure corrected.
Therefore, I need a procedure that converts for air pressure but not guage/absolute pressure.
An example would be that the installations air pressure is 1.000 Bar, with the Gauge Pressure being 0.50 Bar.  Therefore, the total pressure correction factor should 1/1.0135, NOT 1.5/1.0135.
Can anyone tell me what the VCF set-up should be?
Note I realise there's also temperature and super compressiblity involved in the VCF, however this is immaterial for my question.

Answer 1

We have a solution.
For the Volume Correction Factor Procedure to be used for gauge corrected meters, we've ticked Air Pressure Correction.
And then for the gauge corrected meters, we've populated the Air Pressure Correction value as being the negative value of the gauge pressure.
So, therefore for the relevant installation at say 0.6 Bar gauge pressure at an air pressure area that is 1 Bar, the pressure calcuation becomes
= (Air Pressure + Gauge Pressure + Air Pressure Correction)/(Standard Air Pressure)
= (1 + 0.6 + -0.6)/1.01325
= (1)/1.01325
= 0.9878
The number of gauge corrected meters we have is very small (<100), therefore using the Air Pressure Correction as a way of stoppping gauge pressure being double applied (once by the meter, and then by SAP) is a suitable solution.