Hollis Explorer User Manual - page 63
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PO
2
"Bad Cell" States Are As Follows:
• Cell input timed-out
• Cell input stale
• Calibrated sensor input > 3.00 bar
• Calibrated sensor input
• Raw sensor input
• Cell input excluded having failed calibration
• Calibrated cell input > 0.2 bar from the other two cells (only a single cell
can be in this state)
PO
2
"Ascend" Alarm States Are:
High Span
PO
2
cell span > 0.5 bar (if 2 or 3 cells in state “OK”)
Bad Cells
1 cell in state “OK” or; no cells in state “OK” but with different high/low
alarm states or the same alarm states and no O/C bailout case
V. Low Control
If 2 or 3 cells in state “OK”, and PO
2
V. High Control
If 2 or 3 cells in state “OK”, and PO
2
≥ 0.70bar where; PO
2
= PO
2
– set-
point, i.e., the difference between the average PO2 and the setpoint. The
average PO
2
is based on the calibrated value from all cells in alarm state
“OK”.
3
.1
6