affect accuracy. Extrapolation alerts are used to notify the operator that
extrapolation is occurring, and can also be used to initiate matrix switching. Each
concentration matrix has its own extrapolation alert settings.
a. Set
Extrapolation Alert Limit
to the point, in percent, at which an extrapolation alert
will be posted.
b. Choose
Online
>
Configure
>
Alert Setup
>
Concentration Measurement Alerts
.
c. Enable or disable the high and low alerts for temperature and density, as desired.
Important
If you are using matrix switching, you must enable the appropriate extrapolation alerts.
Example: If
Extrapolation Alert Limit
is set to 5%,
High Extrapolation Limit (Temperature)
is
enabled, and the matrix is built for a temperature range of 40 °F to 80 °F, an
extrapolation alert will be posted if line temperature goes above 82 °F.
5.
Choose
Configure
>
Manual Setup
>
Measurements
>
Concentration Measurement
>
CM
Configuration
, then enable or disable
Matrix Switching
as desired.
When matrix switching is enabled and an extrapolation alert occurs, the transmitter
automatically switches from the matrix in Slot 1 to the matrix in Slot 2, or vice versa.
This occurs only if no extrapolation alert would be generated by the other matrix.
Matrix switching is not applicable to any other slots.
Related information
Using equations to calculate specific gravity, °Baumé, °Brix, °Plato, and °Twaddell
Matrix switching
Select the active concentration matrix using the
Field Communicator
You must select the concentration matrix to be used for measurement. Although the
transmitter can store up to six concentration matrices, only one matrix can be used for
measurement at any one time.
1.
Choose
Configure
>
Manual Setup
>
Measurements
>
Concentration Measurement
>
CM
Configuration
.
2.
Set
Active Matrix
to the matrix you want to use.
Related information
4.7.4
Using equations to calculate specific gravity, °Baumé,
°Brix, °Plato, and °Twaddell
Whenever the derived variable is set to
Specific Gravity
, you have the option of using
equations to calculate °Baumé, °Brix,°Plato, and °Twaddell, instead of matrix referral.
Whenever the equation method is used, the active matrix is used to measure referred
Configure process measurement
70
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 ...