Troubleshooting - WXT530

WXT530 Series User Guide

Document code
M211840EN
Revision
F
Language
English (United States)
Product
WXT530
Document type
User guide
Table 1. Data validation
Problem Possible causes Action(s)
Wind measurement failure. Both the speed and direction units are replaced by a # sign or the data values are irrelevant. Blockage (trash, leaves, branches, bird, snow, ice) between the wind transducers. Incorrect <cr><lf> settings in the terminal program. Remove the blockage, and check that the wind transducers are not damaged.

If the blockage is ice or snow, it will melt after some time if heating is enabled. Time for clearance depends on the severity of the weather event.

If birds are causing the blockage, consider using the bird kit.

In ASCII and NMEA protocols both <cr> and <lf> are required after each command. Check that your terminal program sends both when pressing enter. Note: The direction unit is # for the wind speeds less than 0.05 m/s.
Pressure, humidity or temperature measurement failure. The unit is replaced by a # sign or the data values are irrelevant. The PTU module may not be properly connected. There may be water in the PTU module. Ensure the proper connection of the PTU module. Remove and dry the module.
Table 2. Communication problems
Problem Possible causes Action(s)
No response to any commands. Wrong wiring or operation voltage not connected. Baud rate/start bits/parity/stop bit settings do not match between the device and the host. Check the wiring and operation voltage. See Power management.Connect the service cable, use the communication settings 19200,8 N,1. Check the serial port settings of the device with Configuration Tool or with terminal program. Use command aXU! (SDI-12) or aXU<cr><lf> (ASCII/NMEA). Change the values if needed. A software/hardware reset is needed to validate the changes. When you have no service cable, try typing address query commands ?! and ?<cr><lf> with different serial settings in terminal program. When the communication parameters match, the device responds with its address. The settings can now be changed using aXU! (SDI-12) or aXU<cr><lf> (ASCII/NMEA) commands. A software/hardware reset is needed to validate the changes.
Incorrect <cr><lf> settings in the terminal program. In ASCII and NMEA protocols both <cr> and <lf> are required after each command. Check that your terminal program sends both when pressing enter.
Connection works but data messages not available. Wrong device address in a SDI-12 command or a mistyped SDI-12 command (in SDI-12 a mistyped command is in no way responded). A command mistyped in ASCII/NMEA mode while error messaging/text messages is disabled (aSU,S=N). Request the device address with ?! command and then retype the command now with the correct address. Check the data query commands. See Retrieving data messages. Enable the error messaging using the Vaisala Configuration Tool or any terminal by setting aSU,S=Y, then try the command again.
Data messages are not in expected format. The communication protocol may not be the one you want. Check the communication protocol of the device by using the Vaisala Configuration Tool or any terminal with command aXU,M! (SDI-12) aXU,M<cr><lf> (ASCII/NMEA) and change it if needed.
Some parameters are missing from the data messages. The formatting of the data messages is not what you expect. Format the data messages of the concern by using the Vaisala Configuration Tool or any terminal program.
An error message as a response to a command. See Error messaging/text messages . See Error messaging/text messages.
The transmitter keeps sending the message "TX Sync/address error". The polling address and the transmitter address do not match. The transmitter is on an RS-485 bus with other polled devices and Error Messages are enabled. Set correct address either for the transmitter or to the polling request. Disable the Error Messages with the command aSU,S=N <cr><lf>.
mA messages cannot be found. No mA output ordered. You must specify the mA option when you place the order.
Analog input messages are missing. Analog input messages are not enabled. Enable analog input messages. See Enabling or disabling analog output.
Precipitation messages missing. No precipitation measurement in models WXT534 and WXT532.