Configure process measurement
The concentration measurement parameters include:
•
Active Curve
•
Derived Variable
Restriction
The concentration measurement parameters are available only if the concentration measurement
application has been purchased and is enabled on your transmitter.
Prerequisites
Before you can configure concentration measurement:
• The concentration measurement application must be enabled on your transmitter.
• The curve you want to use must be available on your transmitter.
Note
Curves can be made available on your transmitter either by loading an existing curve or by configuring
a new curve. Up to six curves can be available on your transmitter, but only one can be used
for measurement at any given time. See
Micro Motion Enhanced Density Application: Theory,
Configuration, and Use Manual
for information on loading or configuring a curve.
Procedure
1.
Identify the curve you want to use.
2.
Set
Density Measurement Unit
to match the density unit used by your curve.
3.
Set
Temperature Measurement Unit
to match the temperature unit used by your curve.
4.
Set
Derived Variable
to one of the derived variables available with your curve.
Tip
Select a
Derived Variable
that will provide the concentration measurement process variables that you
want to use. If you are using one of the standard curves from Micro Motion, set
Derived Variable
to
Mass Conc (Dens)
. If you are using a custom curve, see the reference information for your curve.
5.
Set
Active Curve
to the curve you identified in Step 1.
6.
(Optional) If you want the concentration measurement application to use temperature data from an
external temperature sensor:
a.
Set
Temperature Source
to
External
.
b.
Set up polling for temperature, or configure the mA input to receive temperature data from
an external measurement device.
You can now configure your transmitter to report and handle concentration process variables in the
same way that it reports and handles other process variables.
94
Micro Motion 9739 MVD Transmitters