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Standard Horizon wind gauge

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Doug
Captain

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USA
457 Posts

Initially Posted - 05/20/2004 : 09:42:34

I have a Standard Horizon WS 150 wind speed & direction gauge on Noeta. Can't seem to getthe wind direction calibrated so the gauge shows the same direction thatt he vane is ointing. Anyone have any tips?

Doug - #1913 Noeta

Edited by - Doug on 05/20/2004 09:49:57

dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 05/20/2004 : 10:28:14

FAQ's from the Standard Horizon website...

Wind instrument loses its linearization

It should be noted that the masthead unit for the wind speed/wind direction instruments must be linearized first and then calibrated. The ideal time/sequence to do this is before mounting the masthead unit by plugging the mast unit directly to the back of the display unit. The linearization and calibration can then be performed very accurately. After which the masthead unit can then be taken up the mast and put in place. Should there then appear to be a problem in the wind angle or wind speed the most common cause of the problem will be damage to the mast cable or incorrect connections running back through the boat (connections in the junction box). The linearization/calibration information for the unit is stored in the NVM (Non volatile memory). It is very unlikely that the NVM would fail and delete it's contents. It is possible that the NVM can get corrupted if there are low power levels on the boat, it only takes a single bit of data to be corrupted to vastly alter the linearization constants. If this happens the linearization/calibration will have to be performed again.

Instrument gives readings that are way out

The WS150 can both display true wind and apparent wind. The true wind calculation is made given the speed of the boat and the current (apparent) wind angle to calculate the true wind angle. However if the speed-reading is way out due to a faulty paddlewheel, or if the speed input is not connected at all then the calculations will give a true wind reading that is incorrect. Check that the speed-readings are correct and that the speed input is connected and if they were using true or apparent wind. This could be a problem with the MU (masthead unit) where bearings for the wind direction are slowly stiffening over time due to water intrusion. This will cause the MU (masthead unit) to give readings that are way out. For this type of complaint it is best to take the display as well as the MU to you?re nearest STANDARD HORIZON dealer so that the problem (if any) can be resolved as quickly as possible.

I have the Standard Horizon speed (recently installed) and depth instruments and when I can sneak the rather expensive wind instrument past purchasing (read Admiral) then I'll be cookin' with gas.

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