The  switch turns the light off after the pressure reachs 7 lb.'s.
The other switch in the system, sounds the buzzer.

            Eric                   86-VW4x4
            vw4x4@fyi.net          72-240z
            Pittsburgh, PA USA     1936-Chrysler

On Fri, 22 Oct 1999, Davidson wrote:

> Eric,
> I've been piecing together the responses I've had... It seems that the .5
> Bar sender would cause the idiot light (& buzzer) to come on sooner (around
> 7psi) than the stock .3 Bar sender (around 4 psi). It that is so, then I
> don't understand your comment:
>
> "That's enough to turn off any idiot light in any engine."
>
> Can you please enlighten me?
> (seems like the light coming on at 7psi rather than 4 psi would give you
> more warning of low oil pressure problems and thus be a better warning
> device... assuming it's not normal for the engin to run at 7psi which would
> cause the light to be a pain in the butt.)
>
> Thanks
> Bill
> 90 Westy Syncro
>
>
>
>
>
>
>
> >
> >            Eric                   86-VW4x4
> >            vw4x4@fyi.net          72-240z
> >            Pittsburgh, PA USA     1936-Chrysler
> >
> >
> >On Thu, 21 Oct 1999, Davidson wrote:
> >
> >> Okay electrical techs...
> >> I got set up with a VDO DUAL CONTACT Oil Pressure Sender and VDO oil
> >> pressure gauge. On of the contacts on the dual sender is to be connected
> to
> >> the new VDO gauge... the other contact is supposed to be connected to the
> >> existing wire that goes to the existing stock idiot light.... But I have
> >> read some stuff on the list about .3 bar and I am wondering if the .5 bar
> is
> >> (a) the correct sender and (b) will the .5 bar dual sender make the idiot
> >> light (and buzzer) come on at the same pressure point(s) as the existing
> >> sender? Or does using the .5 bar dual sender change the calibration?
> >> All answers welcome,
> >> Thanks
> >> Bill
> >> 90 Westy Syncro
> >>
> >
> >
>
>