OPERATING MANUAL OXYGEN MONITORING SYSTEM
OMS 420
37
Second calibration shall be the span calibration with
“GAS”
Wait approximately 5 minutes while instrument air is being supplied
to sensors to allow signals to stabilize.
Press “CALIB” key
Wait for approximately 3 seconds!.
Zero gas (AIR) calibration was successful.
If calibration fails, an error message will be displayed.
Read calibration gas cylinder values and if any change is
required (other cylinder values) then edit O
2
and CO in the
display by pressing “O
2
” then the “CO” key.
Wait approximately 5 minutes while calibration gas is being
supplied to sensors to allow signals to stabilize, then press
“CALIB” key.
Wait for approximately 3 seconds.
Span gas (GAS) calibration was successful.
If calibration fails, an error message will be displayed.
Return to previous setting menu.
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