Vaisala Serial Wind Transmitter WAC155

 

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    Overview
     

     Overview

     
    • Capable of measuring the wind parameters at a configurable interval (typical 3 seconds) using the instant method according to the WMO standard
    • Communication with the host system with NMEA 0183 compliant protocol over RS-485 electrical interface (half-duplex)
    • Fail-safe RS-485 operation with configurable baud rate and turnaround delay
    • Configurable ID setting
    • Adjustable heating control of sensors
    • Auto-detection of sensor failure
    Technical Specifications
     

     Technical Specifications

     

    Signal input from sensors

     

    Wind direction
    Wind speed

    6-bit parallel GRAY code
    Pulse frequency 0...750 Hz

    Operating environment

     

    Operating temperature
    Storage temperature

    -55...+55 °C (-67...+131 °F)
    -60...+70 °C (-76...+158 °F)

    Inputs and outputs

     

    Input operating power

    Heating power
    Outputs
    Output accuracy
    Output range
       for direction
       for speed
    Signal cable

    9...15,5 VDC,9 mA typical incl. sensors (when power-save mode is enabled
    20V/40V AC/DC
    Digital RS-485 serial bus, NMEA compliant data stream.
    Better than 1% of full scale

    0...360°
    0...76.8 m/s
    4 wires minimum (Vin+, Vin-, RS-485 A, RS-485 B)

    For complete specifications, please see the brochure or user guide in "Documents".