There are options that do not involve replacing a small part. (1) just add an external low side resister (SMT parts are easy to remove) or (2) if the pressure sensor is actually a pressure-sensitive resister, then run it with more than 5 Volts.
On Tue, Mar 1, 2022 at 9:40 AM gene heskett <ghesk...@shentel.net> wrote: > On Tuesday, March 1, 2022 11:55:26 AM EST andy pugh wrote: > > On Tue, 1 Mar 2022 at 16:25, Peter C. Wallace <p...@mesanet.com> wrote: > > > Not with firmware but you could replace the low side resistor network > > > on the first 4 inputs with say 22K (was 1.8K) to get about a 5V full > > > scale range > > Or, less intrusively, boost the signal with an Op-Amp powered from the > > field power? > > I've considered that, Andy, unforch field power isn't high enough voltage > at 12 volts on that machine. But that doesn't mean a voltage booster > won't take up residence there. > > Take care and stay well. > > 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 > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
