Ultraflux Uf 811 CO, Руководство пользователя, Страница: 62 / 106

62
NT UF 811 CO GB (c) / March 2014
5.7 "Measurement" mode
The flow meter has measurement pages (different values are displayed, page after page) and a flow graph.
5.7.1 Available pages
The Measurement screens give a large amount of information: the pages scroll down and are accessible
using the
▲ and ▼ keys.
The same information is displayed for each of the chords of the application:
1) Flow rate
This page displays the flow measured with the unit.
2) Channel measurement
This page displays the data relating to the flow: rate, average velocity in
the channel, water level.
3) Specific information relating to the chords
These pages (depending 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 (time 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),
 QI quality index (100% indicates a very good measurement, 0%
indicates that the measurement is not possible).