Wind transmitters – Vaisala Hydromet Data Collection Platform User Manual

Page 126

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User's Guide ______________________________________________________________________

124 _________________________________________________________________ M210933EN-C

Menu selections for interface configuration are as follows:

The available data is as follows:

Wind Transmitters

The WT500 series wind transmitter can be used to interface with
different types of wind sensors, and optionally with the humidity probe
HMP45 for temperature and humidity measurement.

The default communication parameters are as follows:

Operation

Menu Selection

Description

Set format

Operation Mode ->
Handar RS-232

Select correct output mode.

Set units

Wind speed units ->
Meters/second

By default, QML logger
assumes wind calculation
speed input to be in meters/
second.

Set polled

Output Interval -> 0

Disables automatic
transmission.

Store param

Save Configuration

Store modified parameters
permanently.

NOTE

The QML logger interface for the ultrasonic wind sensor WS425
currently supports only the Handar RS-232 mode.

Lizard Variable

Description

type

Message type, always 'W'

avg_time

Averaging time [s]

dev_stat

Device self test status

WD

Wind direction in [deg]

WS

Wind speed [m/s]

unit

Speed unit, always 'T' with QML logger

sum

Eight-bit sum for message, presented in hex ASCII

Parameter

Value

Speed

1200 bps

Parity

none

Data bits

8

Stop bits

1

Handshake

none

RS-485 mode

4-wire

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