Approved Methods To Read Or Obtain Process Data; Effect Of The Weights & Measures Application On Process Measurement And Outputs - Emerson Micro Motion 2500 Configuration And Use Manual

Operate the transmitter with the Weights & Measures application
•
10.1.1

Approved methods to read or obtain process data

When the Weights & Measures application is installed, process data is approved for
custody transfer use only if an approved method is used for reading or obtaining it.
Note
On the primary mA output, HART/Bell 202 communications may be used to poll for either
temperature or pressure, in conjunction with process data reporting.
Table 10-1:
Process data
Mass
Volume
Density
Totalizer values
Inventory values
Table 10-2:
Process data
Mass
Volume
Density
Totalizer values
Inventory values
10.1.2 Effect of the Weights & Measures application on process
measurement and outputs
When the Weights & Measures application is installed, process measurement and
reporting is modified to prevent unauthorized use of the data. Specific changes are
controlled by whether the transmitter is secured or unsecured.
Table 10-3: Transmitter outputs and process data when Approvals=NTEP
Function
Outputs mA output behavior
134
You cannot reset inventories while the transmitter is secured.
NTEP-approved methods to read or obtain process data
OIML-approved methods to read or obtain process data
Unsecured
If reporting a flow variable, mA output reports
zero flow. Otherwise, normal.
Micro Motion Model 2500 Transmitters with Configurable Input/Outputs
mA output(s)
✓
mA output(s)
✓
Transmitter status
Frequency output(s)
✓
✓
Frequency output(s)
✓
✓
Secured
Normal