Answer / r.murugan

o2 analyzer need zero and span gas for calibration

zero gas will be standard parameter

span gas will be standard parameter

you have to select calibration mode

if select zero gas calibration (cyclinder open) enter while
zero gas calibration finish it should reach actual standard
gas value if reached close the zero gas cyclinder

we can proceed to span gas calibration open the span gas
cyclinder select the span gas calibration enter while span
gas calibration finish it should reach standard span gas
value if reached we close the span gas cyclider

Answer / mahesh

O2 analyzer input connection removed and checked in atmosphere oxygen percentages after setting o2 sensor 20.1% in o2

Answer / macchindra

In atmosphere the O2 content must be 20.8%

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