Emerson Micro Motion 1500 Configuration And Use Manual page 34

Configure process measurement
Procedure
From the Source field, choose the method to supply gas base density data and perform the
required setup.
Option
Fixed Value or Digital
Communications
Poll for external value
Configure fixed value or digital communications
Prerequisites
Section 4.3.2
Procedure
1.
2.
Poll for external value
Prerequisites
Section 4.3.2
Procedure
1.
2.
28
Description
A host writes gas base density data to the meter at appropriate intervals.
Continue to
The meter polls an external HART device for gas base density data in order
to then compute gas standard volume from the mass flow and gas base
density.
Continue to
Set Standard Density of Gas to the standard reference density of the gas you are
measuring.
Note
ProLink III provides a guided method that you can use to calculate your gas base density, if
you do not know it.
Continue to Section 4.3.3.
Set Polling Slot to an available slot.
Set Polling Control n as one of the following options:
The n is the value you selected in the Polling Slot field.
If there is another master, and if that master is primary, then set this field to
secondary. If the other master is secondary, then set this field to primary.
Option Description
Poll as Primary
No other HART masters will be on the network.
Configure fixed value or digital
Poll for external value.
Micro Motion Model 1500 Transmitters with Analog Outputs
communications.