5. Modify concentration measurement operational parameters using the
Field Communicator
6. Select the active concentration matrix using the Field Communicator
Enable the concentration measurement application using
the Field Communicator
The concentration measurement application must be enabled before you can perform any
setup. If the concentration measurement application was enabled at the factory, you do
not need to enable it now.
1. Choose Overview > Device Information > Applications > Enable/Disable Applications.
2. If the API referral application is enabled, disable it.
The concentration measurement application and the API referral application cannot
be enabled simultaneously.
3. Enable the concentration measurement application.
Set reference temperature values for specific gravity using
the Field Communicator
When Derived Variable is set to Specific Gravity, you must set the reference temperature to be
used for density measurement and the reference temperature of water, and then verify
the density of water at the configured reference temperature. The two reference
temperature values affect specific gravity measurement.
Additionally, the two reference temperature values affect any concentration process
variable that is calculated by equation, rather than by matrix, because the equations are
based on specific gravity.
Typically, the two reference temperature values are the same, but this is not required.
Restriction
If Derived Variable is not set to Specific Gravity, do not change any of these values. These are set by the
active concentration matrix. To check the setting of Derived Variable, choose Configure > Manual Setup >
Measurements > Optional Setup > Concentration Measurement > CM Configuration.
Important
Do not change the setting of Derived Variable. If you change the setting of Derived Variable, all existing
concentration matrices will be deleted from transmitter memory.
Procedure
1. Choose Configure > Manual Setup > Measurements > Optional Setup > Concentration
Measurement > Configure Matrix.
2. Set Matrix Being Configured to the matrix you want to modify.
3. Choose Reference Conditions, then perform the following actions:
Configure process measurement
Configuration and Use Manual 55
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