The previous ROC was only showing rate-of-change for the unity time periods (1MIN, 1HOUR, 1DAY). For the other periods it was just showing the value differences.

My new system (rolled out yesterday) has three EPICS channels per time period: R, D and V.

V is the value acquired n-minutes ago. E.g for the 3HOUR period, it is the value acquired 180 minutes ago.

D is the value difference between the current value and V

R is the rate of change (D/period) in units appropriate to the period (either per minute, per hour or per day).

The second CP4 thermocouple was added. For performance reasons, the dewar channel was removed.