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WAV151 User Guide
5. Troubleshooting
Table 3 Troubleshooting the Wind Vane
Problem
The data is not received from
the sensor.
The sensor shaft is covered
with ice and snow.
The 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.
16
Probable Cause
The sensor is mechanically
damaged.
After removing the connector's
hexagon nut, the connector is
bent, which breaks the
connection wires.
The sensor is not powered
properly.
Some Vaisala products, for
example, WAT12, switch power
on to the sensor only for a very
short period (200 ... 500 s).
The heating element does not
function.
The heating element is not
properly connected.
The printed circuit board is
damaged.
M210294EN-C
Remedy
Check the cables and
connectors.
Check the connector.
Make sure that the supply
voltage is from 9.5 ... 15.5 VDC.
Make sure that the sensor
output rises above U
in
the end of the power pulse.
Send the sensor to Vaisala for
repair. See
Product
Returns.
Open the sensor and make sure
that the heating element outlet
is connected to the connector
on the printed circuit board.
See
Replacing Consumables
(page
12).
Replace the printed circuit
board. See
Replacing
Consumables (page
12).
- 1.5 V at
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