I would flus the unit in 100% O2 and et the new mv.
Take the mv from air calibration and multiply by 4.7 to see if it is somewhat linear.
If it is linear you do not need to recalibrate.
/Jonny
Quote: (Originally Posted by
netmage)

Was reading through the manual and came across the bit about cell ranges being from 0.8 to 1.3 mV and decided to do some tinkering..... Previous owner installed a new cell when I took possesion and labelled install dates on the cells... #1 - 2/07 - s/n 60844871 #2 - 12/07 - s/n 71120735 #3 - 2/07 - s/n 60844872
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When I pull up System Monitor (from the secondary) I see the following:
.22 9.7
.22 12.7
.20 8.7
Unit was calibrated a bit over a week ago over at Padipro's...
Is this low mV output and inconsistency in relation to the other cells an indication that that third cell is on its last legs...?
Should I recaibrate and pull values again...?
Training is the end of next month; how many spares should I have on hand...
-Tim