Vaisala AWS330 - Manual (Page 234)

User's Guide ______________________________________________________________________
232 _________________________________________________________________ M211296EN-B
Troubleshooting Mechanical Wind Sensor Set
WA15
WA15 Wind Vane
Table 67 Some Common Problems and Their Remedies
Problem Probable Cause Remedy
Sensor is not powered properly. Check that the supply voltage is
from 9.5 to 15.5 VDC.
Improper or loose connections. Check wiring and tighten the screw
terminals.
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.
Sensor heating does not function.
Check the status indicator of the
surge arrester. If the indicator is red,
change the removable plug in the
surge arrester.
Heating is disabled when the system
is running on backup battery. Check
that the AC (mains) power is
connected (the cable is not loose).
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 186 for details.
Sensor body is covered
with ice and snow.
Heating element does not function. Send the sensor to Vaisala for
repair. See section Product Returns
on page 235 for details.
Output from the
connector pins C to H
does not have the right
code or is 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 186. See section
Spare Parts on page 200 for spare
part number.