Table 28 Aga Parameters; Table 29 Aga Error Codes - Honeywell 900 User Manual

Process Displays
AGA8DL & AGA8GS
Parameter
TF
PF
HW
RHOTP
RHOB
RHOS
FPVS
GRS
HV
ERR
WARN
STATUS
Status Block type
number
0 ALL
1 AGA 8 - DETAIL
2 AGA 8 - DETAIL
3 AGA 8 - DETAIL
4 AGA 8 - DETAIL
5 AGA 8 - GROSS
6 AGA 8 - GROSS
7 AGA 8 - GROSS
8 AGA 8 - GROSS
9 AGA 8 - GROSS
12 AGA 8 - GROSS
13 AGA 8 - GROSS
92

Table 28 AGA Parameters

Temperature at flow in units selected by the UNITS configuration parameter.
Pressure at flow in units selected by the UNITS configuration parameter.
Differential pressure in the units selected by the UNITS configuration
parameter. (Only required if the meter block is AGA3.)
Density at flow temperature and pressure conditions in units selected by the
UNITS configuration parameter.
Density at base conditions in units selected by the UNITS configuration
parameter.
Density at standard conditions in units selected by the UNITS configuration
parameter.
Super-compressibility factor
Real Gas relative density at 60 deg F/14.73 PSI
(M *Z )/(M *Z )
gas air air gas
where Z = .9995844 and M
air
Heating Value in units selected by the UNITS configuration parameter.
On when calculation status is indicating an error condition. See Status.
On when calculation status is indicating a warning condition. See Status.
Use the Status number to cross-reference the error or warning. See Table 29
AGA Error Codes.

Table 29 AGA Error Codes

Severity Description
Good OK – NO ERRORS OR WARNINGS ENCOUNTERED
Error PRESSURE HAS A NEGATIVE DERIVATIVE
Warning DENSITY IN BRAKET EXCEEDS MAXIMUM DEFAULT
PROCEDURE USED
Error MAXIMUM ITERATIONS EXCEEDED IN BRAKET
Error MAXIMUM ITERATIONS IN DDETAIL EXCEEDED
Error THE ROOT WAS NOT BOUNDED IN DGROSS
Error NO CONVERGENCE IN DGROSS
Error VIRGS SQUARE ROOT NEGATIVE
Error COMBINED VALUES OF GRGR, X[2] AND HV NOT
CONSISTENT
Error INVALID TERM IN VIRGS
Error FLOWING PRESSURE (PF) <= 0.0 PR > 1740.0 PSIA
Error FLOWING TEMPERATURE (TF) < 14.0 OR > 149.0 DEG F
900 Control Station User Guide
Description
= 28.96256
air
Revision 9
May 2014