Re: Sigma 800 sporadic operation....

["Neil Lindsey" <neil@xxxxxxxxxxx>]

For esthetic reasons I used a button magnet that is much smaller than
depicted on the ST website.  For that reason the exact placement on the
rotor for optimum signal was quite critical.  I also found that that due to
it's thinness, that the gap between the magnet and the pickup was too large.
Rather than get a bigger magnet I epoxied a second magnet directly on top of
the first one and it worked fine.  It's been installed for over a month now
and so far it has worked flawlessly.  BTW, I also zap-strapped the pickup to
the bottom of the disk caliper exactly as shown.  The only problem is that
you'll have to remember to disconnect the pickup before working on the front
brakes.  I've heard that others have mounted the pickup to the fork tube,
but I don't think that would work (or look) too good.

Cheers
Neil

- ----- Original Message -----
From: "Kevin Hoskins" <Kevin.Hoskins@xxxxxxx>
To: "ST" <ST@xxxxxxxxxxxxxx>
Sent: October 27, 2000 1:40 PM
Subject: Sigma 800 sporadic operation....


> Greetings,
>
> While we are on the subject of Sigma cyclometers....
>
> Anyone else had problems with their Sigma 800 having a very sporadic
velocity
> display? Mine may show the correct speed while covering a distance of
anywhere
> from 1 mile to 60 miles. Then its display suddenly shows a speed in the
range of
> 0mph to the correct speed. It eventually degrades to showing a constant
0mph
> during the remainder of a ride. What is this group's collective wisdom
that will
> permanently correct this problem? I installed the magnet and pickup in the
manner
> described on the Sprint ST/RS web site's Sigma page. The magnet is about
3/16"
> thick and its diameter is about 0.5".
>
> Thanks!
>
> Kevin Hoskins
> Audio Applications, National Semiconductor Corp.
> 408-721-2594
> "Just because you can does not mean you should."
>
>      *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *
*
>       The ST/RS Mailing list is sponsored by Jack Lilley Ltd.
>           http://www.TriumphNet.com/st/lilley for more info
>    http://www.TriumphNet.com/st for ST, RS and Mailing List info
>


     *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *
      The ST/RS Mailing list is sponsored by Jack Lilley Ltd.
          http://www.TriumphNet.com/st/lilley for more info
   http://www.TriumphNet.com/st for ST, RS and Mailing List info

=-=-=-= Next Message =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=