Question about Boating
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.
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Posted on Jan 02, 2017
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
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."
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