Pressure Sensor for Flow Bench

[Steven Gorkowski]

Heard you can convert 3 phase motors in to steppers . That may be the
ticket. Never tried this but it may work.

Steve

garfield at pilgrimhouse.com wrote:

> On Fri, 8 May 1998 21:00:11 +0000, bamcknig at postoffice.syspac.com
> wrote:
> >
> >5 HP High Pressure Blower   349.95
> >New, features a Paxton belt driven centrifugal blower RM87(similar to
>
> >an automotive supercharger)  5 Hp TEFC two speed motor.
> >Specs
> >400 cfm   29 inches of water discharge pressure
> >3 1/2 inlet    3" outlet
>
> >Surplus Center
> >1-800-488-3407  24 hrs a day 7 days a week
> >1015 West "O" St.  PO Box 82209 Lincoln Nebraska 68501-2209
> >402-474-4055    FAX 402-474-5198
>
> WOW, guys, I just got through researching this, and this same blower
> is
> both a current Paxton product, as well as sells for $2,325 new! They
> seem to be IDEAL for a flow bench blower. The downside of course is
> that
> they have 3-phase motors, but at 5HP, you wouldn't wanna have to pay
> the
> cost of a single-phase motor anywhoo. So, I took the plunge and just
> ordered one. Excellent find, Bob. I owe ya major brewski's for this
> one!
>
> The other REAL nice thang about using a single blower like this, is
> that
> the total noise is gonna be WAY less, not to mention not having to
> build
> a bloody plenum/air box to hold the multiple smaller vacuum/blower
> motors. NEAT!  All I do is plumb the intake and exhaust lines up to
> the
> stand, for a place to hook them up to the "head adapter" and presto,
> flow bencho!
>
> Gar
>
> P.S. Crumbs, now I have to switch gears and look into computer
> controllable 3-phase motor speed controllers. (they're a tad more
> complicated than simple thyristor AC/DC controllers, but definitely
> diy'able). Sheesh, too many technologies, too little time.