Sanyo MCO-5M - O 2 Calibration

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 CALIBRATION
O
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 CAL key for 5 seconds.
2. The third digit on the temperature indicator flashes, and the CO
2
density indicator goes out.
3. Press the CAL key once again.
4. The third digit on the CO
2
density indicator flashes, and the temperature indicator goes out.
5. Press the CAL key once again.
6. The third digit of the O
2
indicator flashes, and the other indicators go out.
7. Set 20.0 with the key and key, then press the ENT key.
8. The unit automatically reverts to the display mode.
[Span setting]
Span setting should be done under stable condition of temperature, humidity, CO
2
and O
2
density.
1. Press the CAL key for about 5 seconds.
2. The third digit of the temperature indicator flashes, and the other indicators go out.
3. Press the CAL key once again.
4. The third digit of the CO
2
indicator flashes, and the other indicators go out.
5. Press the CAL key once again.
6. The third digit of the O
2
indicator flashes, and the other indicators go out.
7. Set the present correct O
2
density with the key and key, then press the ENT key.
8. The unit will automatically revert to the display mode.
[Example]
If the O
2
density is 5.0% and a measured value is 4.8%.
1. Set the indication to 4.8 using step 7, then press the ENT key.
2. The unit will automatically revert to the display mode.
Note:
・The calibration is applicable when the set value and present value are less than 15% or more than 25%
O
2
density.
・The separate calibration is needed as the low density (less than 15%) and high density (more than 25%)
has the span calibrating value respectively.
・Always carry out the CO
2
calibration after O
2
calibrating ( [ZERO],[SPAN] ).
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