Vaisala WINDCAP WS425 Guide de l'utilisateur télécharger pdf (Page 71)

Chapter 5 _______________________________________ Serial Communication and Analog Output

VAISALA _______________________________________________________________________ 69

Missing Readings and Error Indication

If WMT700 is not able to measure the wind, it indicates a missing

reading in the output. Most common reasons for measurement problems

are foreign objects (such as ice, birds, or other foreign object) on the line

of measurement or sound reflections from nearby objects (such as wind

tunnel walls).

The default error indication is an out-of-range signal, which is more than

10 V or 20 mA but other error settings can also be configured. You can

also disable error indication if necessary.

For more information, see section Configuration Parameters on page 81.

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Vaisala WINDCAP WS425 Guide de l'utilisateur Page 71