Vaisala WMT700 - Manual (Page 185)

Chapter 7 ____________________________________________________________ Troubleshooting
CHAPTER 7
TROUBLESHOOTING
This chapter describes common problems, their probable causes
and remedies, and provides contact information for technical
support.
Problem Situations
Table 55 Some Problem Situations and Their Remedies
Problem Probable Cause Remedy
Connection to WMT700 is
lost. Power supply is not sufficient. Check that the power supply
matches the requirements listed
in section Powering on page 84.
Wind measurement failure.
WMT700 is sending irregular
data values. The installation site is causing
measurement problems. Check that the installation site
matches the requirements listed
in section Selecting Installation
Location on page 58.
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 are
using 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.
Reported wind direction is
not correct. WMT700 is misaligned, which causes
an offset error. Realign WMT700 according to
section Alignment on page 74.
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 section Configuration
Parameters on page 118.
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 changed. Reset the serial communication
settings to default values. See
section Restoring Serial Port
Settings on page 186.
VAISALA _______________________________________________________________________ 183