Dynasonics TFXM Series Ultrasonic Multi-Channel Flow Meter - Manual (Page 78)

Rev. 8/02 -4. 11- TFXM
The screen shown in Figure 4.10 allows multiple actual flow rates
to be run past the meter and the values recorded by the TFXM.
To calibrate a point, establish a stable, known flow rate (verified
by a real-time primary flow instrument), enter the actual flow rate
in the Figure 4.10 window and press the Set button. Repeat for
as many points as desired. Note: If only two points are to be
used (zero and span), it is preferred that a flow rate as high as
anticipated in normal operation is used as the calibration point. If
an erroneous data point is collected, the point can be removed by
pressing the Edit button, selecting the bad point and selecting
Remove.
Press the Finish button when all points have been gathe red.
SOFTWARE UTILITIES
Figure 4.9
Setting Zero Flow
Wait for Stable Reading
Calibrating with
Actual Flow