Vaisala AWS330, User Manual

Page: 236 / 298

User's Guide ______________________________________________________________________
232 _________________________________________________________________ M211296EN-A
Troubleshooting Mechanical Wind Sensor Set
WA15
WA15 Cross Arm
Table 65 Some Common Problems and Their Remedies
Problem Probable Cause Remedy
Data is not received by
the data collection
system. Improper or loose connections. Check wiring and tighten the screw
terminals.
Improper or loose connections. Check wiring and tighten the screw
terminals. Shaft heating of the 151
series sensors is not
working.
Heating is not connected. Check the connections.
WA15 Wind Vane
Table 66 Some Common Problems and Their Remedies
Problem Probable Cause Remedy
Sensor is not powered properly. Check that the supply voltage is
from 9.5 to15.5 VDC.
After removing the connector's hex
nut, the connector is bent, which
breaks the connection wires. Check the connector.
Data is not received
from the sensor.
Sensor is mechanically damaged. Send the sensor to Vaisala for
repair.
Heating element is not properly
connected.
Open the sensor and check that the
heating element outlet is connected
to the connector on the printed
circuit board. Refer to the
instructions given in section
Replacing Bearings of WAV151 on
page 184 for details. Sensor shaft is covered
with ice and snow.
Heating element does not function. Send the sensor to Vaisala for
repair. See section Product Returns
on page 234 for details.
Output from the
connector pins C to H
do not have the right
code or are not at the
proper level.
Current consumption is
either less than 17 mA
or more than 25 mA
when the shaft is
rotated mechanically.
The printed circuit board is
damaged. Replace the printed circuit board.
Refer to the instructions given in
section Replacing Bearings of
WAV151 on page 184. See section
Spare Parts on page 198 for spare
part number.