
148
Using ProLink
®
Software with Micro Motion
®
Transmitters
Calibrate Menu
continued
Temperature calibration for RFT9739
Figure 14-10.Density Point 2 Calibration dialog box for RFT9712/RFT9729
4. To perform the high-density calibration:
a. Fill the sensor with water.
b. If possible, shut off the flow. Otherwise, pump the water through
the sensor at the lowest flow rate allowed by the process. To
ensure stable density, make sure the fluid in the flow tubes
remains completely free of gas bubbles during the calibration.
c. Open the Calibrate menu, then choose Density. At the cascading
menu, choose Second Point (Water) to open the Density Point 2
dialog box, shown in
Figure 14-10
.
5. Choose Do Cal. The transmitter measures the tube period, corrects it
to 0°C, and stores the value. The indicator in the dialog box blinks
ON and OFF while density calibration is in progress. When the
indicator stops blinking, the high-density calibration is complete.
14.5 Temperature calibration
for RFT9739
Temperature calibration of the RFT9739 is not recommended.
CAUTION
Temperature calibration will cause
measurement error.
Temperature calibration affects the RFT9739 flow,
density, and viscosity calculations, and will require
completely recalibrating the flowmeter for flow,
density, and viscosity measurement.
Temperature calibration of the RFT9739 is not
recommended.
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