Limitations for output signals, Missing readings and error indication – Vaisala WMT700 User Manual

Page 146

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User's Guide ______________________________________________________________________

Limitations for Output Signals

You can specify the minimum and maximum values for analog
output with the configuration parameters. The output is fixed to
the specified values, and the unit depends on the selected analog
output mode.

Example

To limit the output 1 in voltage mode to a range of 0.1 … 5 V, set
the analog output minimum value to 0.1 and the analog output
maximum value to 5. Enter the following commands:

S aout1minv,0.1

S aout1maxv,5

Missing Readings and Error Indication

If WMT700 is not able to measure the wind, it indicates a missing
reading in the output. The 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 that is more
than 10 V or 20 mA but other error settings can also be
configured.

Example

To set analog output 1 error indication in voltage mode to 1 V, set
the analog output error value to 1. Enter the following command:

S aout1err,1

144 __________________________________________________________________ M211095EN-E

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