- 8 -
O
2
span calibration
(Ex䠅When setting O
2
density is 5.0% and actual O
2
density is 4.5%:
Process Operation MENU
1 Put densitometer thorough the sample port at the front side of the unit to measure
chamber O
2
density.
2
Select Tools in the Top Screen.
Tools
3
Select Tools (1/2) is displayed. Select temp / CO
2
Calibration and press OK key.
OK
4 By pressing digit shift key and numerical value shift key, input actual O
2
density
䠄4.5%䠅 in the column O
2
Span. Select OK and press ENTER key.
OK
5
Automatically reverts to Select Tools (1/2) screen.
*Note (1)㻌 Input range: +1.0% ~ -1.0% (per input).
(2)㻌 Repeat O2 calibration for several times until displayed CO2 density will match with
actual density.
(3)㻌 It is unacceptable to commence O2 span calibration when setting O2 density deviates㻌
䡂rom 18.0 ~ 22.0䠂.
㻌㻌㻌There is a blank in the rignt side of 䇾O2 Span䇿 column.
䠘Display of Process-2䠚
䠘Display of Process-3䠚
O
2
span calibration
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䣅
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