Emerson Micro Motion 2500, Configuration And Use Manual

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• You cannot reset inventories while the transmitter is secured.
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.
NTEP-approved methods to read or obtain process data Table 10-1:
Process data mA output(s) Frequency output(s)
Mass
✓
Volume
✓
Density
✓
Totalizer values
Inventory values
OIML-approved methods to read or obtain process data Table 10-2:
Process data mA output(s) Frequency output(s)
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.
Transmitter outputs and process data when Approvals=NTEP Table 10-3:
Function
Transmitter status
Unsecured Secured
Outputs mA output behavior If reporting a flow variable, mA output reports
zero flow. Otherwise, normal. Normal
Operate the transmitter with the Weights & Measures application
134 Micro Motion Model 2500 Transmitters with Configurable Input/Outputs