Emerson Network Router - Manual (Page 55)

Installation and Use Manual 49
Transmitter Configuration, Characterization, and Calibration
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Flow calibration values
Two separate values are used to describe flow calibration: a 6-character FCF value and a 4-character
FT value. Both values contain decimal points. During characterization, these are entered as a single
10-character string that includes two decimal points. In ProLink II, this value is called the Flowcal
parameter. In the Communicator, this value is called the FCF for T-Series sensors and Flowcal for
other sensors.
To obtain the required value:
• For older T-Series sensors, concatenate the FCF value and the FT value from the sensor tag, as
shown below.
• For newer T-Series sensors, the 10-character string is represented on the sensor tag as the FCF
value. The value should be entered exactly as shown, including the decimal points. No
concatenation is required.
• For all other sensors, the 10-character string is represented on the sensor tag as the Flow Cal
value. The value should be entered exactly as shown, including the decimal points. No
concatenation is required.
5.4.3 How to characterize
To characterize the meter:
1. In the ProLink > Configuration > Device panel, specify your sensor type and click Apply .
2. Set each of the required parameters, as listed in Table 5-1, to the appropriate value, as
described in the previous sections.
5.5 Calibrating the meter
The meter measures process variables based on fixed points of reference. Calibration adjusts those
points of reference.
This section provides a general method for calibration. For specific calibration information for your
transmitter, refer to the transmitter manual. Transmitter manuals are shipped with the transmitter, and
are also available on the Micro Motion web site.
The Calibration menu, shown in Figure 5-4, is used to begin the calibration procedures.
Flow FCF X.XXXX FT X.XX