11
Measurement support
Topics covered in this chapter:
•
Options for measurement support
•
Use Smart Meter Verification (SMV)
•
•
Piecewise linearization (PWL) for calibrating gas meters
•
Use the fuel consumption application
•
•
•
Perform a (standard) D1 and D2 density calibration
•
Perform a D3 and D4 density calibration (T‐Series sensors only)
•
Perform temperature calibration
11.1
Options for measurement support
Micro Motion provides several measurement support procedures to help you evaluate and
maintain your flowmeter's accuracy.
The following methods are available:
•
Smart Meter Verification (SMV) evaluates the structural integrity of the sensor tubes
by comparing current tube stiffness to the stiffness measured at the factory.
Stiffness is defined as the load per unit deflection, or force divided by displacement.
Because a change in structural integrity changes the sensor’s response to mass and
density, this value can be used as an indicator of measurement performance.
•
Meter validation compares flowmeter measurements reported by the transmitter to
an external measurement standard. Meter validation requires one data point.
•
Calibration establishes the relationship between a process variable and the signal
produced at the sensor. You can calibrate the flowmeter for zero, density, and
temperature. Density and temperature calibration require two data points (low and
high) and an external measurement for each.
Tips
•
Perform SMV at regular intervals to get the best data on your meter's performance.
•
To prove the meter against a regulatory standard, or to correct measurement error, use
meter validation and meter factors.
•
Before performing a field calibration, contact customer support to see if there is an
alternative. In many cases, field calibrations have a negative effect on measurement accuracy.
Measurement support
Configuration and Use Manual
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Содержание Micro Motion 2500
Страница 8: ...Contents vi Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 10: ...Getting started 2 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 18: ...Quick start 10 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 20: ...Configuration and commissioning 12 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 124: ...Complete the configuration 116 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 130: ...Set up the Weights Measures application 122 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 132: ...Operations maintenance and troubleshooting 124 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 140: ...Transmitter operation 132 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 216: ...Using ProLink III with the transmitter 208 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 226: ...Default values and ranges 218 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Страница 237: ...NE 53 history Configuration and Use Manual 229 ...