USE DATA FROM PERIOD: 264.85 367.000 CYLINDER POSITIONS (UNKNOWN=0, CO2 AND O2 KNOWN=1, CO2 ONLY KNOWN=2, DO NOT USE=8, EMPTY=9): 1 0 2 1 3 0 4 0 5 1 6 0 7 1 8 0 9 1 10 0 11 1 12 1 13 9 NOTES: Unknowns Pos ID Description 1 CC129307 BB Secondary 3 CC129293 BB Secondary 4 CC129271 BB Secondary 6 CC161540 BB Secondary 8 CC129295 BB Secondary 10 CC129281 BB Secondary Knowns Pos ID CO2 O2 Description 2 ND19681 NA NA BB Primary 5 ND20887 NA NA BB Primary 7 ND19273 NA NA BB Primary 9 ND19529 NA NA BB Primary 11 ND20050 NA NA BB Primary 12 ND19517 NA NA BB Primary Working Tank CA06631 - Second run of primaries vs. secondaries - New RS-232 to RS-485 converter - O2 noise somehow fixed from previous run - Vented immediately before run (looks very stable)