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:
a. Set
Reference Temperature
to the temperature to which line density will be
corrected for use in the specific gravity calculation.
b. Set
Water Reference Temperature
to the water temperature that will be used in the
specific gravity calculation.
c. Set
Water Reference Density
to the density of water at the specified reference
temperature.
The transmitter automatically calculates the density of water at the specified
temperature. The new value will be displayed the next time that transmitter
memory is read. You can enter a different value if you want to.
Related information
Using equations to calculate specific gravity, °Baumé, °Brix, °Plato, and °Twaddell
Configure process measurement
66
Micro Motion
®
Compact Density Meters (CDM)
Summary of Contents for CDM100M
Page 8: ...Getting Started 2 Micro Motion Compact Density Meters CDM ...
Page 12: ...Before you begin 6 Micro Motion Compact Density Meters CDM ...
Page 20: ...Configuration and commissioning 14 Micro Motion Compact Density Meters CDM ...
Page 26: ...Introduction to configuration and commissioning 20 Micro Motion Compact Density Meters CDM ...
Page 110: ...Integrate the meter with the control system 104 Micro Motion Compact Density Meters CDM ...
Page 116: ...Operations maintenance and troubleshooting 110 Micro Motion Compact Density Meters CDM ...
Page 124: ...Transmitter operation 118 Micro Motion Compact Density Meters CDM ...
Page 194: ...Using the transmitter display 188 Micro Motion Compact Density Meters CDM ...
Page 208: ...Using ProLink III with the transmitter 202 Micro Motion Compact Density Meters CDM ...