On Saturday, 28 May 2022 12:52:05 EDT John Dammeyer wrote: > You could refine your search for 'gage' pressure. > For example: > https://www.mouser.ca/ProductDetail/Honeywell/TBPLLNN015PGUCV?qs=sGAEpi > MZZMvWgbUE6GM3ORZWIiwl0bZWTYn43VfoT8%2FWbX7uba9%252Bdg%3D%3D > > Or just go to Mouser and look for this part number. > 785-TBPLLNN015PGUCV > Got it, ordered 3, will have to carve a pcb, & print a box. But thats easy 'nuf. Thank you John.
> There are also inexpensive units out there with SPI or I2C instead of > analog. > > -----Original Message----- > > From: gene heskett [mailto:ghesk...@shentel.net] > > Sent: May-28-22 8:41 AM > > To: Enhanced Machine Controller (EMC) > > Subject: [Emc-users] air pressure sensors for up to 10 psi > > > > Greetings all; > > > > I'm getting frustrated, but I know it has to be out there, someplace. > > I need a differntial air pressure sensor, differential so it > > references local barometric as its reference zero, and up to 10 psi, > > with a 3 wire analog output. > > I've solved the control aspect, but not how to detect a pressure to > > accomplish the control. > > > > automotive EGR types seem seem the most promising as they are > > affordable and 2 port gismo's but all I can find just lists the > > vehicles it fits and works with, but zero info on how to hook it up > > and get an analog reading out of it. "MAP" sensors whose internal > > reference is a good vacumm can have their signals clipped and > > massaged into something usable, but so far I've bought 4 w/o finding > > a working one that actually reads the 14.7 psia of normal air. > > > > So how are you folks solving that problem? > > > > Or are you burning up the shop compressor feeding your misters? I > > can't see that as being an acceptible solution since none of those > > have an intake muffler so you can still hear yourself think. > > > > What I have cobbled up at the moment is giving me more than enough > > air to run a mister, and I can't hear it running over the 2 fans in > > this 6040 mill. One in the vfd is really noisy. > > > > Thank you. > > > > Cheers, Gene Heskett. > > -- > > > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. Please use in that order." > > > > -Ed Howdershelt (Author, 1940) > > If we desire respect for the law, we must first make the law > > respectable.> > > - Louis D. Brandeis > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > . Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
