ST60 Speed input voltage - SailNet Community

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  #1  
Old 10-26-2010
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ST60 Speed input voltage

I'm trying to work out a way to connect a 2-wire speed transducer to an ST60+.

Can someone with a working ST60 installation please tell me what the voltage is between the RED (Speed/+Voltage) wire and BARE (Speed/Ground) when the unit is powered on??

Thanks,
Cameron
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Old 02-01-2011
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According to the service manual, for both the ST60 Speed and Tridata:

the Red terminal "12V_SPD Approximately 11.2V DC out".

The green SPD terminal "With transducer attached, spinning paddle-wheel produces pulses approximately 11.2V DC in amplitude @ 5.5Hz/Knot."
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  #3  
Old 02-02-2011
Classic30's Avatar
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Quote:
Originally Posted by redline View Post
According to the service manual, for both the ST60 Speed and Tridata:

the Red terminal "12V_SPD Approximately 11.2V DC out".

The green SPD terminal "With transducer attached, spinning paddle-wheel produces pulses approximately 11.2V DC in amplitude @ 5.5Hz/Knot."
Thanks, Redline.

I'd have thought the voltage on the green would have been less than that.. but in any case, that helps a lot!!
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