Question about Boating

Open Question

Autohelm st50 wind mast head unit pin out and wire color

Problem with Mast Head Unit on ST-50 wind instrument.

boat was in storage for 2 years now has no true wind speed. Swapped out MHU with known good unit. Same problem.

Need to know the color of wire to pin connection on the plug at the mast head to look for the problematic wire.

Posted by on

×

2 Suggested Answers

  • 18 Answers

SOURCE: autohelm st50 how to calibrate??? wind instrument

I had one. Don't think you calibrate it. Reading is relative to it's mounting base. To change the direction reading, you would need to rotate the base.

Posted on Jun 18, 2009

  • 38 Answers

SOURCE: Autohelm mast Wind speed unit. Bottom bearing worn

Here is post copied from other person with same problem

I recently, had a problem were my ST50 Wind mast Head unit was not giving an output to the display for wind speed. Having removed the unit I found the bearing supporting the rotor had collapsed and hence allowed the indicator to rotated but not on a true axis and hence there was no output signal. A little investigation found that the bearing and the Digital Position sensor (Honeywell SS 411-A, the bit that measures the 4 magnets on the rotor) could be purchase from Radio spares at http://uk.rs-online.com/web/ the RS part numbers for those interested are: -

Honeywell SS 411-A = 181-1463
Rotor bearing = 612-5739

The unit is now working as new all for under Ten quid.

Posted on Jun 21, 2010

Testimonial: "Thanks very much. I will contact."

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Is there such a thing as a reset for the Autohelm WIND ST 50? I purchased a boat with one that showed proper wind angle but not speed. I removed the sender, greased both the wind vane and cuos. now


I assume you have an ST-50 or ST60 windvane setup. These are the calibration instructions from the unit manual for the ST-50. They are the same for the ST-60 and ST-60+ units.

Hope it helps you.

Initial Calibration Windvane Alignment
Before the unit is used for navigational purposes the masthead transducer must be accurately aligned to the vessel. Before this procedure is carried out the windvane should be linearised as follows.

1 . Powerup lhe ST50 Plus Wind instrument.


2. Tum the vessel through two complete circles, making sure that the windvane remains in line with the wind -the instrument will automatically linearise the windvane.

Alignment
1. Press and hold CAL for 2 seconds until CO is displayed by the LCD.

2. Press < > to move the pointer to the correct wind angle.- WIND
- Press < > once to move the pointer by 1 degree.
- Press < > for 1 second to move the pointer by 10 degrees/second.
The LCD will now display the applied correction.

3. Press and hold CAL for 2 seconds to exit and store windvane alignment.

Windspeed Unit Selection

1 . Press and hold CAL until Ul (Knots) or U2 (Meters/second is displayed.

2. Press CALwithin 8 seconds to change the windspeed units selection.

3. After 8 seconds the wind instrument returns to normal operation.

Nov 22, 2014 | Boating

1 Answer

Autohelm st50 wind


Go to Raymarine.com to find the usermanual for these units. They should be helpful.

May 06, 2013 | Boating

2 Answers

Autohelm mast Wind speed unit. Bottom bearing worn out. Can this be replaced, or where can I get a full replacement unit. Len


The part number for the lower pod is Q002. I am willing to bet that Raymarine will not have any more of these. The new ST60+ version will read faster than what the wind is actually.

May 15, 2010 | Boating

1 Answer

Wind instruments only display 3 dashs .we refitted the mast fitting and it worked for awhile then stopped.


Hi Paul!

Seeing as how you only performed ONE refit, it SHOULD be easy to trace the problem. I'm thinking the ground is faulty as the unit seems to have power to it judging from the three dashes visible that you mention.

Hopefully it WON'T be the connection at the top of the mast, but you know Murphy's Law.

Hope this is of help to you.

Good Luck!

Apr 30, 2010 | Raymarine ST60 A22012-P GPS Receiver

2 Answers

Car radio works on am but not fm


antenna is desconnected, find lead and reconnect .

Aug 11, 2009 | 1994 Chrysler LeBaron

1 Answer

Autohelm st50 how to calibrate??? wind instrument


I had one. Don't think you calibrate it. Reading is relative to it's mounting base. To change the direction reading, you would need to rotate the base.

Jun 10, 2009 | Boating

2 Answers

Raymarine ST50


http://www.defender.com/product.jsp?path=-1|344|295761|301233|320702|746011&id=823240

Oct 19, 2008 | Raymarine ST60 A22012-P GPS Receiver

2 Answers

ST40 Depth and Knot meter


I traced the line from the mast and it was good so finally ordered a new instrument head "$150", It works now, the head was 2 years old {the length of the warranty} not a very long lasting instrument, hope I get more time out of the new one.

Aug 08, 2008 | Raymarine St40 Depth Display E22038

3 Answers

Installation of vt holden commodore aerial rope and mast


You access the ariel via the left hand wheel arch.
1. Remove left wheel mud guard. It is held in with a bunch of press studs which can be difficult to remove. I found pulling on the plastic mud guard whilst turning the screw helped.
2. unbolt the electric ariel assembly. There is an earth strap that needs to be unscrewed as well.
You should be able to get the ariel out far enough to work on it.
3. Remove chrome plated nut to top end of mast tube.
4. With great anger and force, remove the dead ariel and drive cable from the mast.
It's difficult to get the mast to work unless it's earthed properly.
5. Get you hand inside the wall and remove the ariel face plate. Swear if you have to.
6. Put the ariel mast assembly back into the wall and hook it all up minus the new ariel.
7. Switch your radio on, then put the new ariel into the mast. Gears facing the rear of the car. Switch the radio off, it should retract. If not you may need to push it in a little further.
8. Remove the ariel mast again and slip the chrome nut to top end of mast tube and tighten securely.
9. Ask the spouse to close up whilst you have a beer.

Apr 03, 2008 | Car Audio & Video

Not finding what you are looking for?
Boating Logo

Related Topics:

1,373 people viewed this question

Ask a Question

Usually answered in minutes!

Top Boating Experts

Steve
Steve

Level 3 Expert

691 Answers

ray gallant

Level 3 Expert

41075 Answers

Andrew Taylor
Andrew Taylor

Level 3 Expert

13973 Answers

Are you a Boating Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...