Diagnosis
The gas procedure you have specified does notcorrespond to the technical description of the register and istherefore not permissible.

System Response
Processing is canceled.

Procedure
To select a suitable gas procedure, display the possible entries (F4).
If the gas procedure you wish to select is not proposed, note thefollowing selection criteria:
The billing class and type of gasbilling are determined from the rate categorycurrently allocated to the installation. All gas procedures with thisbilling class and gas billing type not marked as inactive are includedin a preselection.
In the volume correction factor procedure theappropriate gas procedure is then checked to see if thenominal load and the measuredpressure of the device/register are also in the areas defined therefor the nominal load or measured pressure. In addition, the use of thefactors for thermal gas billing in the volume correction factor (whichyou specify in the Therm.gas bill. field) mustcorrespond to that which is specified in the register.
A gas procedure is not permissible unless it meets all theserequirements.