Hello CrisR.
When the encoder goes up, the pressure goes down or goes up randomly.
Looking at ni.com I have found this application:
http://zone.ni.com/devzone/cda/tut/p/id/4494
Using a unity gain buffer in the pressure channel, I managed eliminate this effect (without the SC2040 and with encoder in RSE) at every sample rate. I think it happened due to a impedance problem in encoder. It is curious, because I must put the follower in the pressure channel.
Thanks very much for repplies.
Finallyt, I have solved all problems.
Best regards.
Jorge Arroyo
