Why is the wind direction not correct with my Vaisala Accessories?
If the reported wind direction from your Vaisala Accessories WMT700 is incorrect, it might be misaligned, causing an offset error. To resolve this, realign the WMT700.
What to do if Vaisala Accessories WMT700 does not respond to commands?
If your Vaisala Accessories WMT700 does not respond to any commands, the communication profile might be incorrect. Configure the communication profile to match the host communication profile. Also, the wiring might be incorrect, so check the wiring.
Why is my Vaisala Accessories wind measurement failing?
If the wind measurement is failing and the Vaisala Accessories WMT700 is sending irregular data values, it could be due to the installation site causing measurement problems. Ensure the installation site matches the requirements. Also, snow, ice, a bird, or another object might be blocking the measurement path between the ultrasonic transducers. Remove any blockage and check that the wind transducers are not damaged. If birds are causing the blockage, consider installing a bird cage.
How to fix erratic wind direction indication on Vaisala Accessories?
If the wind direction indication acts erratically on your Vaisala Accessories, the orientation of the sensor might not match the wndOrientation parameter value. Set the wndOrientation parameter value according to the actual orientation of the sensor.
How to restore connection to Vaisala Accessories WMT700?
If you lose connection to your Vaisala Accessories WMT700, it might be that the power supply is not sufficient. Check that the power supply matches the requirements.
What to do if no response when switching to configuration mode with OPEN command on Vaisala Accessories?
If there is no response when you try to switch to configuration mode with the OPEN command on your Vaisala Accessories WMT700, the settings might be unknown or accidentally changed. Reset the serial communication settings to default values.
What to do if connection works but data messages are not available on Vaisala Accessories?
If the connection works but data messages are not available from your Vaisala Accessories WMT700, the command might have been mistyped. Use the ERRORS command to fetch the error messages from WMT700.
General| Measurement Principle | Ultrasonic |
|---|---|
| Protection Class | IP66 |
| Product Type | Wind Sensor |
| Wind Speed Range | 0 to 60 m/s |
| Wind Direction Range | 0 to 360° |
| Humidity Range | 0 to 100% RH |
| Communication Protocol | SDI-12 |
| Heating | Optional |
Lists document codes, dates, and descriptions of changes.
Explains safety symbols (DANGER, WARNING, CAUTION) and information icons (Note, Tip).
Lists registered trademarks used in the manual.
Describes the WMT700 wind sensor, its technology, features, and suitability for various installations.
Lists environmental and electromagnetic compatibility tests WMT700 complies with.
Details various ordering options for the WMT700 sensor, including range, heating, and interfaces.
Defines ordering option 1 for wind speed operation range based on sensor type.
Defines ordering option 2 for the sensor's operating temperature range.
Defines ordering option 3 for extra heating for demanding environmental conditions.
Defines ordering option 4 for the serial line physical interface.
Defines ordering option 5 for the communication protocol used.
Defines ordering option 6 for different digital communication units.
Defines ordering option 7 for analog output signal for wind speed.
Defines ordering option 8 for analog output signal for wind direction.
Details available connection cables for WMT700 based on operating environment.
Lists available mounting adapters for different mast diameters.
Lists optional accessories available for the WMT700 sensor.
Specifies the available manual versions and special package design.
Shows an example configuration for the WMT703 model.
Lists accessories to tailor the WMT700 to specific user needs.
Describes the optional bird cage to prevent bird interference with measurements.
Details the zero wind verifier for testing mechanical integrity and calibration.
Lists available cables for connecting the WMT700 according to the operating environment.
Describes the tool used for tightening cable connectors.
Explains how the WMT700 uses ultrasonic sensor technology for wind measurement.
Explains how sensor geometry is converted to coordinates and then to polar representation.
Describes scalar and vector averaging methods for wind speed and direction.
Explains calculation of wind speed and direction averages by summing measurements.
Describes how wind direction is maintained when wind speed drops below a threshold.
Explains averaging of x and y velocity components to determine wind speed and direction.
Explains continuous measurement and measurement on request.
Describes how WMT700 connects to host devices for data collection and presentation.
Details the preconfigured serial communication and analog output functionalities.
Details COM1 service port and COM2 configurable interface.
Explains that analog outputs can be enabled/disabled and preconfigured at the factory.
Explains the heating functionality for proper operation in cold environmental conditions.
Provides general instructions for installing the WMT700 sensor.
Details specific considerations for installing WMT700 in maritime environments.
Guides on selecting mounting locations for reliable wind measurements.
Provides instructions for safely unpacking and handling the WMT700 sensor.
Details steps for routing and connecting the WMT700 sensor cable.
Guides on mounting the WMT700 sensor on a vertical pole mast.
Guides on mounting WMT700 on support or cross arms using the WMT70FIX kit.
Provides instructions for aligning the WMT700 sensor for accurate measurements.
Explains how to configure the wind direction offset if alignment is difficult.
Details analog output parameters for tunnel and crane applications.
Guides on installing the bird cage on top of the wind sensor.
Describes how to install a bird net over the bird cage for small bird populations.
Details the 17-pin M23 connector for power, digital, and analog outputs.
Lists available ready-made and open-lead cables for WMT700 connections.
Shows connection details for various cable lengths.
Details RS-485 wiring for COM2 with 2m and 10m cables.
Describes RS-485 cables for standard connection and loopback.
Shows the pin-out of the 17-pin M23 connector.
Explains separate power supply inputs for operating and heating power.
Details operating power requirements and voltage ranges for WMT700.
Shows minimum power supply requirements for WMT700 heating options.
Provides cable and power recommendations for fully heated WMT700.
Explains the `heaPeakPwr` parameter for setting maximum peak power.
Details the `heaBMaxPower` parameter for adjusting body heater power.
Outlines options for upgrading from WS425 to WMT700.
Guides on mounting WMT700 using an existing WS425 mounting kit.
Lists the necessary components for upgrading from WS425 to WMT700.
Provides steps for upgrading from WS425 to WMT700.
Guides on mounting WMT700 using an ASOS mounting adapter.
Highlights issues to pay attention to when installing WMT700 cables.
Explains two methods for performing WMT700 retrofit installation wiring.
Recommends using standard WMT700 cables for retrofit installations.
Details the ROSA Cable for replacing WS425 with WMT700 in ROSA systems.
Describes using adapter cables when WMT700 cables are not possible.
Details pin-outs and signals for the WS425 serial adapter cable.
Details pin-outs and signals for the WS425 analog frequency output adapter cable.
Details pin-outs and signals for the WS425 analog voltage output adapter cable.
Compares WMT700 and WS425 analog output signal connections.
Explains how WMT700 operates with WS425 supply voltages and power consumption.
Guides on establishing communication with WMT700 using terminal software.
Explains how to toggle between configuration and measurement modes using OPEN/CLOSE commands.
Details the OPEN command to switch WMT700 to configuration mode.
Details the CLOSE command to switch WMT700 to measurement mode.
Guides on checking and changing WMT700 settings using serial port commands.
Explains commands for handling parameters like setting, getting, and port configurations.
Details the S command for defining data messages and changing WMT700 parameters.
Explains the G command to display configuration parameter values.
Command to view all parameter values without specifying any.
Command to view specific parameter values.
Commands to display or change serial port settings like bit rate and parity.
Lists commands for controlling wind measurement (MEAS, START, STOP).
Lists commands for diagnostics and support (ERRORS, CLEARERR, POLL, RESET).
Fetches error information, codes, and counts from the WMT700.
Resets the error counters within the WMT700.
Fetches the latest measurement data from WMT700.
Resets the WMT700 device.
Lists commands for getting information like command set, help, version, and calibration data.
Displays a list of available configuration commands.
Displays data messages, units, profiles, and interface values.
Displays the label and version of the WMT700 software.
Fetches WMT700 calibration date and other calibration data.
Lists parameters affecting WMT700 functionality.
Allows defining new data messages for automatic messaging or polling.
Guides on defining and testing new data messages.
Lists items like wind measurement, control characters, and monitoring items for data messages.
Describes status flags included in data messages for sensor status.
Explains how to configure WMT700 settings using text files.
Guides on starting WMT700 operation after installation and configuration.
Guides on operating WMT700 using a terminal program.
Lists data messages supported by WMT700 and their numbers.
Describes the format of WMT700 Data Message 21 for wind speed and direction.
Describes the format of WMT700 Data Message 22 for wind speed in x and y components.
Describes WMT700 Data Message 23 for wind measurement and diagnostics.
Describes WMT700 Data Message 24 including checksum calculation.
Describes WMT700 Data Message 25 for wind, sonic temp, and status data.
Details the MES12 data message used with the Vaisala ROSA system.
Explains how WMT700 indicates missing readings in output.
Describes how WMT700 provides self-diagnostics for status and data validity.
Lists available commands in measurement mode, dependent on the selected profile.
Lists commands for operating WMT700 when the WMT700 profile is selected.
Starts wind measurement in single measurement mode.
Switches the serial port to configuration mode.
Fetches data from WMT700 using the polling command.
Switches WMT700 to low-power mode.
Explains how to poll data in MES12 format for the ROSA system.
Fetches data from WMT700 in MES12 data message format.
Guides on operating WMT700 in WS425 analog output mode.
Details analog output settings and their configuration for WS425 systems.
Explains how WMT700 sends analog output as frequency or voltage for WS425 systems.
Describes the frequency output for wind speed analog signals.
Describes the voltage output for wind speed analog signals.
Explains the analog output for wind direction as simulated potentiometer voltage.
Describes how to specify minimum and maximum values for analog output signals.
Explains how WMT700 indicates missing readings and error conditions.
Outlines how each communication profile has its own section for parameters and commands.
Lists the communication profiles supported by WMT700.
Guides on changing the communication profile and associated parameters.
Guides on operating WMT700 using a terminal program.
Switches the serial port to configuration mode for any communication profile.
Lists configurable parameters and default values for the WS425 F/G ASOS profile.
Lists commands available for operating WMT700 with WS425 F/G ASOS profile.
Requests averaged wind speed and direction message with peak winds.
Requests verbose Built-In Test (BIT) results.
Requests short BIT results and status.
Reports the status of built-in tests (BITs) concisely.
Returns a fixed data pattern to verify communications link.
Describes the data message structure for WS425 F/G ASOS profile.
Lists parameters for the WS425 A/B NMEA Standard profile.
Details the NMEA 0183 V2.20 MWV wind message format.
Lists parameters for the WS425 A/B NMEA Extended profile.
Lists commands for polling data in the WS425 NMEA Extended profile.
Lists configurable parameters for the WS425 A/B ASCII profile.
Lists commands available for WMT700 with the WS425 A/B ASCII profile.
Shows vendor, model, and firmware version information for WMT700.
Starts measurement and fetches data based on averaging time.
Lists configurable parameters and values for the WS425 A/B WAT11 profile.
Lists commands for polling data using the WS425 A/B WAT11 profile.
Explains SDI-12 as a standard for interfacing sensors with data recorders.
Lists available commands for operating WMT700 with the SDI-12 profile.
Queries WMT700 for its address on the SDI-12 bus.
Ensures WMT700 is responding to a data recorder or SDI-12 device.
Changes the WMT700 address and writes it to non-volatile memory.
Starts concurrent measurement, indicating when results are retrievable via aD0!.
Fetches instant data from WMT700 after specific commands.
Queries WMT700 for SDI-12 compatibility, model, and firmware version.
Starts measurement, indicating when results are retrievable via aD0!.
Starts verification and specifies when results are retrievable via aD0!.
Explains data messages sent by WMT700 depend on the command before fetching with aD0!.
Details the response format for WS425 A/B SDI-12 messages with C or M commands.
Details the response format for WS425 A/B SDI-12 messages with V command.
Enhances error detection using aCC! or aMC! commands with CRC.
Provides guidance on minimal periodic maintenance for the WMT700 sensor.
Explains how to test the WMT700 operation using an optional verifier.
Lists common problems, their probable causes, and remedies.
Lists error and event codes, probable causes, and remedies.
Guides on restoring serial port settings to known values if accidentally changed.
Lists specifications for wind speed and direction measurements.
Details operating voltage, heating power requirements, and output specifications.
Lists operating and storage temperature, humidity, IP rating, and EMC standards.
Provides dimensions, weight, and materials for the WMT700 and accessories.
Lists tools and accessories available for WMT700 and WS425.
Lists all available commands for WMT700 categorized by mode and profile.
Lists default settings for various digital communication profiles.
Provides detailed descriptions of configuration parameters for WMT700.
Lists configurable parameters and default values for the WMT700 NMEA MWV profile.
Lists commands for polling data using the WMT700 NMEA MWV protocol.
Describes the format of the WMT700 NMEA MWV data message.
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