Autohelm ST50 Wind Speed Instrument

[Jac Crowell]

 

I just replaced the wind direction vane and bearing assembly and speedo cups and bearing assembly parts at the mast head for this wind speed/direction unit after 17 years of service .  The unit is operating at the top of the mast, but giving unusual information on the read out.  Checking it today using my remote Autohelm repeater unit I am getting full data out on the Sea Talk bus.  The problem seems to be the wind angle vane is reading off by180 degrees.  It does not correct by the initialization 2 X 360 turning on a power up.  I have also tried adjusting the wind angle indicator needle on the display using the calibration instructions – this does not resolve the problem.  Recommendations are requested.  Does anyone know this device well technically or have a service location who might help.  Raymarine is not of any help – not a supported product today.

 

Jac Crowell

F310 Sundancer

 

[David Fletcher]

Jack:

 

It is my understanding that the ST50 mast head will operate with a ST 50 and St 60 read out however the ST 60 mast head will not operate correctly with a ST 50 read out. It does not sound like the parts you replaced should have any effect on the electronics. I sent my mast head to Raymarine and they repaired it under the flat rate price. It was a ST 50 head and it operates a ST 60 read out.

 

Suggestion, if you could get a ST 60 read out and plugged it in, you would soon know if that was the problem, if you are changed out to ST 60, I have two or three of the adapters to change the seatalk from round to flat connectors, let me know the price will right about “ free”.

 

Fletch   

 

---

[Guy]

The older st50 and the new style vanes and cups are not compatible.  e.g. there is no way to enter a calibration with the st50 head; it will never show the right wind speed (I recall it's 27%off).  The heading should be ablt ot be adjusted tho.

 

 

-------------------------------------------------
Captain Guy
New Smyrna Beach FL USA
386-689-5088
-------------------------------------------------
s/v Island Time (Beneteau 352#277)
AICW 845.5

----- Original Message -----

From: Jac Crowell

To: Benetea...@googlegroups.com

Sent: Monday, May 25, 2009 11:21 PM

Subject: {Beneteau Owners} Autohelm ST50 Wind Speed Instrument

 

I just replaced the wind direction vane and bearing assembly and speedo cups and bearing assembly parts at the mast head for this wind speed/direction unit after 17 years of service .  The unit is operating at the top of the mast, but giving unusual information on the read out.  Checking it today using my remote Autohelm repeater unit I am getting full data out on the Sea Talk bus.  The problem seems to be the wind angle vane is reading off by180 degrees.  It does not correct by the initialization 2 X 360 turning on a power up.  I have also tried adjusting the wind angle indicator needle on the display using the calibration instructions – this does not resolve the problem.  Recommendations are requested.  Does anyone know this device well technically or have a service location who might help.  Raymarine is not of any help – not a supported product today.

 

Jac Crowell

F310 Sundancer