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NT UF 841 CP GB (d) / June 2015
5.7 "Measurement" mode
The flow meter has measurement pages (different values are displayed on successive pages) including a
flow graph.
5.7.1 Pages available
The Measurement screens provide a large amount of information: to scroll through and access the pages,
use the
▲
and
▼
keys.
The same information is displayed for each of the chords of the application:
1) Flow
This page displays the flow measured with the unit.
2) Pipe measurements
This page displays the data relating to the flow: flow rate, measured
Reynolds number, calculated KH, average speed in the pipe, etc.
3) Specific information relating to the chords
These pages (which depend on the number of chords) provide information on the specific measurements for
a chord:
•
average time (average of the time for the upstream-downstream
journey and the time for the downstream-upstream journey),
•
delta T (difference between the upstream-downstream journey
time and the downstream-upstream journey time),
•
measurement gain (the higher the gain, the more difficult it is to
obtain a measurement),
•
IQ quality index (100% indicates a very good measurement, 0%
indicates that the measurement is not possible).
Summary of Contents for Uf 841
Page 4: ...4 NT UF 841 CP GB d June 2015 CHAPTER 1 OVERVIEW...
Page 12: ...12 NT UF 841 CP GB d June 2015 CHAPTER 2 SAFETY INSTRUCTIONS...
Page 17: ...17 NT UF 841 CP GB d June 2015 CHAPTER 3 INSTALLATION AND WIRING...
Page 25: ...25 NT UF 841 CP GB d June 2015 CHAPTER 4 INSTALLING A MEASURING POINT...
Page 27: ...27 NT UF 841 CP GB d June 2015...
Page 35: ...35 NT UF 841 CP GB d June 2015 CHAPTER 5 USING AND CONFIGURING THE Uf 841...
Page 64: ...64 NT UF 841 CP GB d June 2015 CHAPTER 6 FUNCTION ENGINE...
Page 68: ...68 NT UF 841 CP GB d June 2015 CHAPTER 7 PC SOFTWARE...
Page 82: ...82 NT UF 841 CP GB d June 2015 Appendix I Characteristic echo signals...
Page 85: ...85 NT UF 841 CP GB d June 2015 Appendix II Speed of sound in water...