|Wind measurement failure. WMT700 is sending irregular
||The installation site is causing measurement problems.
||Check that the installation site matches the requirements listed in
|Snow, ice, a bird, or some other object is blocking the measurement
path between the ultrasonic transducers.
||Remove the blockage and check that the wind transducers are not
damaged. If the blockage is ice or snow, it melts after some time if you use a heated
version of WMT700. Duration of the blockage depends on the severity of the weather
event. If birds are causing the blockage, consider installing a bird cage. See Bird cage.
|Reported wind direction is not correct.
||WMT700 is misaligned, which causes an offset error.
||Realign WMT700 according to Aligning WMT700.
|Wind direction indication acts erratically.
||Orientation of the sensor does not match the
wndOrientation parameter value.
||Set the wndOrientation parameter value according
to the actual orientation of the sensor. See Configuration parameter descriptions.
|There is no response when you try to switch to configuration mode
with the OPEN command.
||The WMT700 settings are unknown or they have been accidentally
||Reset the serial communication settings to default values. See Restoring serial port settings.
|WMT700 does not respond to any commands.
||The communication profile is not correct.
||Configure the communication profile to match the host communication profile. See
Changing communication profile.
|The wiring might be incorrect.
||Check the wiring, see Wiring.
|Connection works but data messages are not available.
||You have mistyped the command.
||Use the ERRORS command to fetch the
error messages from WMT700. See ERRORS — get error codes and counts.
|Data messages are not in the expected format.
||The selected data message is not correct.
||If you use automatic messages: check the selected data message with
the G command. If necessary, set a new value for the
autoSend parameter. If you use polling: check that
you are using the correct data message number in the polling command, see Table 1.
|Some items are missing from the data messages.
||The configured data message does not contain all the required
||Define the data message again with the required items. See Parameter handling commands.
|Configuration commands do not work.
||WMT700 is in measurement mode.
||Switch from measurement mode to configuration mode. See Communicating with terminal software.
|WMT700 sends an error message as a response to a command.
||For probable causes, see Error and event messages.
||For remedies, see Error and event messages.
|No signal is present on analog outputs.
||Analog output has been disabled.
||Enable analog output with the aout1_mode and aout2_mode parameters.
See Configuration parameter descriptions.
|Automatic data messages are not received although parameters are
||WMT700 is not in continuous measurement mode.
||Initiate continuous measurement with the START command. See START — start continuous measurement.
|Data from WMT700 is temporarily lost.
||The data logger and wind sensor are not in the same operating mode
(polling or automatic transmission mode).
||Make sure that the data logger and wind sensor are both in either
polling or automatic transmission mode.
|Data messages are not received.
||Baud rates of the data logger and wind sensor do not match.
||Change the baud rate so that it is the same in the data logger and
|Parameter does not change after typing the S command.
||The parameter requires reset before it becomes valid.
||Check Configuration parameter descriptions if you must reset before the parameter is changed.
|Inconsistent serial communication or missing data.
||Pin contacts of the connector have become oxidized or the connector
is not firmly attached.
||Change the WMT700 cable.
|Retrofit installation of WMT700 is not possible.
||You do not have the correct mounting kit for the retrofit
||Check that you are using the correct mounting adapter with your
mounting kit. See WMT700 accessories.
|WMT700 does not work properly after retrofit installation.
||Incorrect cables are used in the retrofit installation.
||Check that you have used cables listed in Connection cable prerequisites. If you do not have the correct cables, contact Vaisala technical support.
|Connection to WMT700 is lost.
||The power supply is not sufficient, especially if you are using a
heated version of WMT700.
||Check that the power supply matches the requirements in Powering WMT700.