I'm thinking that vacuum gauges are calibrated in inches of mercury, and pressure gauges are in PSI, which are two different things.
But the principal is similar I think. On Mon, 9 Feb 2004 19:53:10 +1100, Martindale Family <johnj...@chc.net.au> wrote: > OK folks this might be the dummest question but... > > Is a vacuum gauge going from 30" of vacuum down to 0" the same as a > manifold pressure gauge going from 0" of pressure up to 30". If so, and > it's just a dial face change, why are the latter so much more expensive. > See, for example, in the Aircraft Spruce catalog (mine is old at > 1998-1999): > > Mitchell vacuum gauge PN 10-25125 for $35-50 and manifold gauge PN > 10-25145 for $71-50. > > Why couldn't I just remove the dial face and mirror image it? Does > anyone know of a supplier of 2 1/4" manifold gauges that are cheaper. > Egauges have an ISSPRO but it's calibrated in psi and I don't like its > look. VDO don't seem to make a MP but do have a vacuum and this might be > what I get since it matches my other gauges. > > Awaiting the dunce's hat in the corner!! > > John > > The Martindale Family > 29 Jane Circuit > TOORMINA NSW 2452 > AUSTRALIA > > phone: 61 2 66584767 > email: johnj...@chc.net.au_______________________________________ > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/
