Channels on relay card of Slow Controls
chan 27 is ON/OFF
chan 26 does a CAL (need to click off, also)
                   in batch mode chan 26 starts a scan
                   continues cycling if 26 is held on
chan 25 does survey -> batch

Burndy connector added to chassis
+5 - A - black
+5 - B - red
GND - C - green
+15 - D - white
                              on connector on internal board
                              +15   GND   +5   +5
                               D     C     B    A  (Burndy connector)

Hypertronics connector added to chassis
1 - red
2 - black
3 - NC


From helium vent into hall at some point
0.25% helium into the hall???
5.75 days
8,000 liters
17:30 +/- 5 minutes