Micro Motion RFT9709 Manuale delle Istruzioni Pagina 103

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Using ProLink
®
Software with Micro Motion
®
Transmitters
89
Configure Menu: Characterize
continued
Pressure compensation with RFT9739
Configure Menu:
Transmitter Outputs
Configure Menu:
Transmitter Information
Configure Menu: EventsView Menu: Status
Configure Menu:
Characterize
Configure Menu:
Transmitter Variables
2. After calculating the corrected density, use the following equation to
adjust the K2 density constant or the second five digits of the density
calibration factor:
Example:
Given:
After being calibrated at the factory at 20 psi, a D300 sensor
operating at 220 psig indicates a process density of 0.9958 grams per
cubic centimeter (g/cc).
Problem:
Determine the density offset and the corrected density.
Solution:
Density offset= 0.00001 * 220
= 0.0022
Density
corrected
= 0.9958 + 0.0022
= 0.9980 g/cc
K
2
new
K
2
old
()
2
K
1
()
2
[]
Density
measured
Density
corrected
---------------------------------------------
K
1
()
2
+=
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