Ultraflux UF 831, User Manual, Page: 73 / 109

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NT UF 831 CO GB (b) / March 2014
Note: It is possible to enter in the flow rate calculation a chord external to the converter (for example, a
Doppler velocity measurement). The settings to be defined for this chord are the same as those for the
internal chords, but the following must also be defined:
 the internal chord associated with the external chord: when the internal chord is faulty, it is the
external chord which takes over.
 the input module which will serve as a velocity measurement: a 4-20 mA module may serve to
recover a Doppler velocity.
The main advantage of this virtual chord lies in being able to measure the flow using several measurement
methods.
8) "Description of section" tab (in the « Channel » drop-down menu)
The screenshot below shows an example of settings in Advanced mode. All parameters displayed below are
described previously in this document (see chapter 5).