Raytheon rt 60 wind calibration

[EmmaL]

Hi all
Got a Raytheon rt 60 wind direction unit , the wind direction is showing its coming from stern of boat when at anchor , does anyone know how to change it ?
Thanks ems

 

[emandvee44]

Hello Emma - welcome to the Forum.
I cannot find Raytheon rt60 on Google. Could it be Raymarine st60? If so the manual gives the procedure to re-align the pointer (if that is what is required) .I have done it a few times. If you do not have the manual it is a free download.

Michael.

ps your enquiry would be better on "Reader to Reader" section

 

[robmcg]

First step - visually check the wind vane on the transducer at the top of the mast. It sounds like the vane has snapped, which makes the nose weight face aft when facing into the wind. Happened to us this summer. New vane readily available mail order and not challenging to fit.

 

[Malo37]

Get a new anchor ?

 

[EmmaL]

Thanks for your help. A new piece has been fitted. Now I need to re-align the pointed. My interface says it is calabrating but nothing changes. Emma

 

[KAL]

Have a look on raymarine.co.uk and go to http://www.raymarine.co.uk/view/?id=1964

on pg 27 there's a section on calibration. It's very easy, especially if you're sitting at anchor straight into the wind. Just a few button presses in the right mode, which you'll get from the manual.

Best of luck.

 

[DJE]

Thanks for your help. A new piece has been fitted. Now I need to re-align the pointed. My interface says it is calabrating but nothing changes. Emma

I think the first thing you have to do is motor round slowly in two complete circles. It should then beep and the "CAL" on the display should disappear. You can then go on to zero the pointer.

 

[emandvee44]

Raymarine Masthead Unit

Hello again Emma,
It is a pity you are drip feeding us information, but never mind.
If your masthead unit is new (which you indicate), then it is necessary to 'linearize' it before carrying out the alignment of the pointer.
This is achieved by switching on the system, then completing two circles slowly, at the end of which the little LCD display on the instrument head should flash twice – it does not BEEP.
Then you can go back to anchor, or alongside and carry out the calibration, and alignment of the pointer. Note that with the new wind vane masthead unit there is a different calibration factor to enter into the instrument head so that you get the correct wind speed. All explained in the manual and the intructions supplied with the new masthead wind vane unit.
If I can do it – you can

Best of luck and let us know how you get on.

Michael.

 

[DJE]

Manual here:-

http://www.raymarine.co.uk/WorkArea/linkit.aspx?LinkIdentifier=id&ItemID=3451&libID=4958

Quote:-

4.2 User calibration
The User calibration procedures:
• Linearize and align the wind transducer.
• Select the required wind speed units
Linearizing and aligning the wind transducer
This procedure ensures that the sensors in the windvane transducer are correctly
calibrated to record rotation of the windvane, then compensates for any small
errors which may exist in the alignment of the wind transducer.
To do this:
1. Power-up the ST60 Wind instrument.
2. Slowly turn the vessel through two complete circles. This procedure automatically
linearizes the windvane. A successful linearization is indicated by the
digital display flashing and the buzzer sounding three beeps.

 

[EmmaL]

Thank you. I just got back to the boat and it worked! Well kind of! It pointing the wrong way! Information is all correct but....its pointing at where the wind is going to....not where it is coming from.....any ideas??
Thank you.

 

[FWB]

Thank you. I just got back to the boat and it worked! Well kind of! It pointing the wrong way! Information is all correct but....its pointing at where the wind is going to....not where it is coming from.....any ideas??
Thank you.

You probably need to turn the boat through 360 deg twice, again.
If still wrong then refer to book and put the boat head to wind and turn the pointer till it matches. 360 ought to do it though.

 

[EmmaL]

Re: Raymarine Masthead Unit

Hi Michael, sorry for drip feeding you. A very strange thing has happened! The pointer is pointing exactly the opposite of what it should! Any ideas??

 

[tcm]

Is it reliably pointing to where the wind is going i wonder? If so, where it says "wind indicator", scratch out the word "wind" and write "hat" with a marker pen, maybe?

edit - have a look up the mast and see if the indicator thing is in one piece, or if the back end has snapped off?...

 

[Minchsailor]

Assuming the wind direction vane is pointing forward. Could this be a wiring fault - the port and starboard quadrant connections interchanged?

edit - do a reset.

Try changing the green and blue wires over at the ST60 display head. The yellow is the signal from the anemometer. Then linearise as per manual.

 

[EmmaL]

Ok, thank you for your info. I am in the marina now so will try this when we leave at the end of the week....I have a look at the wiring and am going to switch them over before trying again..... The yellow on is not connected to anything... Is this correct??
Emma

 

[Minchsailor]

The yellow wire is wind speed - it should be connected to the yellow terminal on the ST60 display head.

Here are some hints which I found useful for testing my own masthead unit which was misbehaving (it needed a new pcb):

Windvane test:

There is a test you can do on the masthead transducer to determine if it is working,
however, if the display head is burned up, you can be almost certain that the masthead unit
is damaged as well.

To perform the check, you will need a multimeter, and a DC power supply. You will need to
supply 8v to the masthead across the red and shield connections. Normally the ST50/ST60
display head would be energized and provide this 8V, however in your case, you may need
to power the masthead transducer separately (I used a 9v pp9 battery, connected to the red (+9V) and black wires).

With the multimeter set to the 20V scale, check the following:

Test at the connections on the rear of the display head, or at the base of the mast (if you
have a junction box installed.)

Red to shield should read 8 volts DC steady. This is the masthead power supply, coming
from the ST50/ST60 display head. If the head is damaged, you may need to provide this
power from another source to test the masthead.

Blue to Shield should read anywhere between 2 and 6 volts DC. This is the port side
directional element. The voltage changes as the vane turns.

Green to Shield should read anywhere between 2 and 6 volts DC. This is the starboard side
directional element.

Yellow to shield should read between 0 and 5 volts DC. This is the wind speed circuit. The
faster the wind is blowing, the higher the voltage will read.

If any of these readings are out of spec, you should assume the masthead is damaged, and
it should be repaired or replaced.

 

[emandvee44]

Re: Raytheon RT 60 wind calibration

Hello again Emma,
Seems to be a long term project!
In your post no. 5 you say ' a new piece' as been fitted.
Is this a new masthead unit, i.e.the rotating wind speed cups and the wind direction vane?
The original base block at the masthead, therefore the cable to the instrument head original?
Is the wind vane intact/undamaged?
In your post no. 10 you say ' it worked' (but the pointer is in the wrong direction)
You do not say anywhere that after fitting 'the new piece' you carried out linearising.
If so, as per my earlier message the linearising procedure is as per the book but without the beeps, only the display flashing twice.You do not need 'cal' mode at this stage, only later to adjust the angle.

The cable connection to the back of the wind instrument head is as per the manual
< ST60 Wind handbook (81105-4)> Page 25 (Installation)
ALL the cables should be connected as you will see.
(If there is a junction box above the headlining, eg close to the mast area, it might be worth checking that the connections are all ok).

When linearising, I had one person steering and another watching the instrument head, as without the beeps you need to be watching carefully as you come towards the end of the second turn as that is when (my) instrument head digital indicator flashed.

If you successfully linearise (after carrying out all the checks which have been suggested here and elsewhere), you can return to the dock and enter the 'cal' mode and adjust the pointer to the true wind angle. The book says go head to wind and align it but it is not easy. I did it in the marina and adjusted to the actual angle observed. You can always adjust it later if it is a bit out.
If your 'new piece' is a new masthead transducer you will need to change the wind speed calibration factor in the instrument head. The new factor should have been supplied with the new masthead unit.

Good luck,

Michael.