Function Blocks
AGA9UM Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 39
2/07
Execution Order of this block must be set to be greater than the Gas Compressibility block (AGA8GS, or
AGA8DL) Execution Order for correct calculation sequence. Right click on block to change execution
order.
Configuration parameters
The AGA9UM properties dialog box is divided into two tab cards
AGA9UM-Ultrasonic
Flow Rates
Click on the tab to access the properties for that tab.
AGA9-Ultrasonic tab
Table 12 AGA9UM Ultrasonic tab configuration parameters
Properties Group Parameter Index # Parameter Description Value or Selection
Ultrasonic Meter
Setup
Meter Factor
A meter factor is a
dimensionless term
obtained by dividing the
actual volume of gas
passed through the meter
by the corresponding meter
indicated volume.
Value should default to 1 and be
limited to >0.
Units U.S.
Metric
Type of units for all block
inputs, outputs, and
configuration parameters:
This selection must agree
with the UNITS selection in
the meter block. If they
don’t agree, no error will be
indicated on the error/calc
status pins. The Meter
block will detect the error,
and will alert the user.
Click Radio Button to select
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