I used something like this:
http://www.ebay.com/itm/SMC-ZSE4-LCD-Readout-Digital-Pressure-Switch-for-Vacuum-ZSE4-01-25-/181468926790?pt=LH_DefaultDomain_0&hash=item2a40641346

The set-points are adjustable.

You can find a wide variety of them on ebay. Mine had transistor output so
I had to add a relay driver.




On Thu, Sep 11, 2014 at 12:32 AM, Buddy Mills via EV <ev@lists.evdl.org>
wrote:

> I am looking for a vacuum switch that has a wider or adjustable range
> between on and off.  I am about to put two switches on and use a relay to
> accomplish but was wondering if there was a simpler way to keep the vacuum
> pump from cycling so often.
>
>
>
> Thanks,
>
>
>
> Buddy Mills
>
>  <mailto:buddymi...@cox.net> buddymi...@cox.net
>
>
>
> Look mom, no gas.  <http://www.evalbum.com/2887>
> http://www.evalbum.com/2887
>
>
>
> Disclaimer:  No animals were harmed or killed in the process of writing
> this
> email.  Any stories to the contrary are, for the most part, either
> fictional
> or greatly exaggerated.
>
>
>
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <
> http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140911/0f695045/attachment.htm
> >
> _______________________________________________
> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
> http://lists.evdl.org/listinfo.cgi/ev-evdl.org
> For EV drag racing discussion, please use NEDRA (
> http://groups.yahoo.com/group/NEDRA)
>
>


-- 
www.electric-lemon.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140911/55b48135/attachment.htm>
_______________________________________________
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
http://lists.evdl.org/listinfo.cgi/ev-evdl.org
For EV drag racing discussion, please use NEDRA 
(http://groups.yahoo.com/group/NEDRA)

Reply via email to