Vaisala Hydromet Data Collection Platform - Manual (Page 70)

User's Guide ______________________________________________________________________
68 __________________________________________________________________ M210933EN-C
The output frequency must be at least one message per second. A
typical setting is ten messages per second.
For more detailed information on how to set the parameters for the
ultrasonic anemometer, refer to the appropriate METEK user manual.
Configuring Ultrasonic Anemometer USA-1
Communications Setup
The ultrasonic anemometer is connected to the QML logger through an
RS-422 or RS-232 serial line. Follow METEK's instructions when
selecting cabling for the desired mode.
The default data transmission parameters are the following: 9600 bps, 8
data bits, no parity, 1 stop bit.
For more information on wiring of the RS-485 and RS-232 options,
refer to the delivery-specific wiring diagrams. For more information on
configuring serial ports, see Vaisala HydroMet™ Data Collection
Platform User’s Guide, Volume 2.
NOTE The unit for wind speed is cm/s in the message received from the
ultrasonic anemometer. The QML logger automatically converts the
unit to m/s, which is the standard unit for measuring wind speed.