KROHNE Summit 8800 Vol 2 - Manual (Page 111)

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08/2013 - MA SUMMIT 8800 Vol2 R02 en
SUMMIT 8800 STREAM CONFIGURATION 06
Figure 109 Base density selection
The 4 choices provided for the relative density selection are:
None No relative density calculated
Keypad A user can enter a fixed value for base density
AGA8 The value will be calculated via AGA8 calculations based on the gas data
Rho air x rd The value will be calculated by multiplying relative density with base density of air.(see
next page).
Also the keypad value can be entered together with the min, max alarm limits and high, low
warning limits for base density.
Furthermore the compressibility setting can be given:
Figure 110 Compressibility options
The following choices for compressibility can be selected:
Keypad A fixed user defined value to be entered
AGA8 Using the AGA8 calculation based on the gas data available
SGERG Using the SGERG calculation based on relative density and combinations of gas data:
rd-Hs-CO2 / rd-Hs-N2 / rd-Hs-CO2-H2 / rd-Hs-N2-H2 / rs-N2-CO2
Also the combustion temperature must be given.
NX19 Using the NX19 calculation based on the gas data available. 3 Versions are available:
Standard / Gost / G9
ISO 6976 Using the ISO 6976 calculation based on the gas data available.
GPA 2172 Using the GPA 2172 calculation based on the gas data available.