41
CO
2
calibration
[Zero setting]
Zero setting should be done when CO
2
and O
2
/N
2
has not been injected yet and the stable condition
(about 8 hours) of temperature/humidity inside the unit has been attained.
1.
Press the calibration key (CAL) for 5 seconds.
2.
The left digit on the digital temperature indicator blinks, and the other indicators go out.
3.
Press the calibration key (CAL) once again.
4.
The left digit on the digital CO
2
density indicator blinks, and the other indicators go out.
5.
Set 00.0 with the digit shift key ( ) and numerical value shift key ( ), then press the enter key
(ENT).
6.
The unit automatically reverts to the display mode.
[Span setting]
Span setting should be done under stable condition of temperature, humidity, and CO
2
density.
1.
Press the calibration key (CAL) for about 5 seconds.
2.
The left digit on the digital temperature indicator blinks, and the other indicators go out.
3.
Press the calibration key (CAL) once again.
4.
The left digit on the digital CO
2
density indicator blinks, and the other indicators go out.
5.
Set the present correct CO
2
density with the digit shift key ( ) and numerical value shift key ( ),
then press the enter key (ENT).
6.
The unit automatically reverts to the display mode.
Note:
This calibration is available when the present correct CO
2
density is 2 % or more.
[Example]
For an internal CO
2
density of 5.0 % (setting) and a measured value of 4.5 %.
1.
Press the calibration key (CAL) for about 5 seconds.
2.
The left digit on the digital temperature indicator blinks, and the other indicators go out.
3.
Press the calibration key (CAL) once again.
4.
The left digit on the digital CO
2
density indicator blinks, and the other indicators go out.
5.
Set the present correct CO
2
density (4.5 %) with the digit shift key ( ) and numerical value shift key
( ), then press the enter key (ENT).
6.
The unit automatically reverts to the display mode.
Summary of Contents for MCO-5M Series
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