User’s Guide ______________________________________________________________________
112 __________________________________________________________________M210925EN-B
 
See also Chapter 10, Troubleshooting, on page 109. In case of constant 
error, please contact Vaisala Service Center, see Vaisala Service 
Centers on page 108.
Table 11 Error Messaging/Text Messages Table
Text message identifier (in 
NMEA 0183 v3.0 protocol only) 
Text Message Interpretation and action
01 Unable to measure error The requested parameters are 
not activated in the message, 
see Chapter 8, Sensor and Data 
Message Settings, on page 95, 
and check the parameter 
selection fields. 
02 Sync/address error The device address in the 
beginning of the command is 
invalid. Ask the device address 
with the ?! (SDI-12) or ?<cr><lf> 
(ASCII and NMEA) command 
and retype the command with 
the correct address.
03 Unknown cmd error The command is not supported, 
use the correct command format, 
see Chapter 7, Getting the Data 
Messages, on page 61.
04 Profile reset Checksum error in configuration 
settings during power-up. 
Factory settings used instead. 
05 Factory reset Checksum error in calibration 
settings during power-up. 
Factory settings used instead.
06 Version reset New software version in use.
07 Start-up Software reset. Program starts 
from the beginning.
08 Use chksum xxx Given checksum not correct for 
the command. Use the proposed 
checksum.
09 Measurement reset The ongoing measurement of all 
the sensors interrupted and 
started from the beginning.
NOTE
When WMT52 is used on an RS-485 bus with other polled devices, the 
error messaging feature shall always be disabled. This is done by the 
following command: 0SU,S=N<crlf>.