It is not incessent but the EndX HEPI Pressure still alarms occasionally at +-3.5 degrees F.  So I've opened the no-alarm region to +-4 degrees F.  See the attached plot for 1 weeks worth of minute trends.  You can see that this change should reduce the number of alarms from several a week to one or less.

Notice how much noisier the EX pressure is than EY or the Corner and the imprinted increase in the controller output.  It would be good to quiet down this signal.  EE is working on getting another (possibly custom) power supply.  Also, what is up with that ~24 hour glitch that hits the EY--warrants investigation.

Nice to see the daily changes on the controller output, presumably based on the temperature.  The last column of pressures are out of loop in the mechanical room, I thought those might have shown the cyclic signal too but they don't.  Does that mean the temperature isn't that important or is the temp in the MR as well controlled as the VEA...?