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CO
2
span calibration
(Ex䠅When setting CO
2
density is 5.0% and actual CO
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 CO
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 CO
2
density
䠄4.5%䠅 in the column CO
2
Span. Select OK and press ENTER key.
OK
5
Automatically reverts to Select Tools (1/2) screen.
*Note㻌 (1) Input range: +1.0% ~ -1.0% (per input).
(2) Repeat CO2 calibration for several times until displayed CO2 density will match with
actual density.
(3) It is permitted to commence CO2 span calibration only when setting CO2 density is 5.0䠂.
CO
2
span calibration
䠘Display of Process-2䠚
䠘Display of Process-3䠚
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