DAVIS Anemometer for Vantage Pro2 (6410) - Manual (Page 11)

9
Troubleshooting
 “The wind cups are spinning but my console displays 0 mph.”
The signal from the wind cups may not be making it back to the display. Check
your cables for visible nicks and cuts. Look for corrosion in the WIND connector
on the SIM and on splices in the cable. If using an extension cable, remove it and
test using only the anemometer cable. Contact Technical Support and ask for a
wind test cable if the problem has not been resolved.
Note: If the anemometer is sending no data, the wind display indicates 0 speed and a north direction.
 “The wind direction is stuck on north, or displays dashes.”
It is likely that there is a short somewhere between the wind vane and the display.
Check the cables for visible nicks and cuts. Look for corrosion in the “WIND”
jack on the SIM and on splices in the cable (if any). If possible, remove any
extensions and try it with the anemometer cable only. If none of these steps get the
wind direction working, contact Technical Support and ask for a wind test cable.
 “The wind cups don’t spin or don’t spin as fast as they should.”
The anemometer may be located where wind is blocked by something, or there
may be friction interfering with the cups’ rotation. Remove the wind cups (loosen
the set screw) and clear out any bugs or debris. Turn the shaft the cups rotate on. If
it feels gritty or stiff, contact Davis Technical Support.
Note: Do not lubricate the shaft or bearings in any way. When replacing the cups, make sure they are
not rubbing against any part of the anemometer head.
 “Readings aren’t what I expected them to be.”
Comparing data from your ISS to measurements from TV, radio, newspapers, or a neighbor
is NOT a valid method of verifying your readings. Readings can vary considerably over
short distances. How you site the ISS and anemometer can also make a big difference. If you
have questions, contact Technical Support.