Sanyo MCO-5M - CO 2 Calibration

9
CO
2
Calibration
Prior to calibration performed, make sure there is not CO
2
in the unit and the internal
humidity is stable. If you perform calibration with the internal humidity unstable, you may get
the CO
2
density incorrectly.
Perform calibration before CO
2
is injected.
Never perform CO
2
calibration before O
2
calibration is completed.
1. Procedure
(1) Pour sterilized water into humidifying pan and operate unit for approx. 10hrs with SV
37㷄. Ensure the internal humidity should be stabled in 90% or higher.
CO
2
setting should be 0%.
<Note> 1) Never open the door during the operation to stabilize internal humidity.
2) It takes approx. 5hours to stabilize internal humidity since the operation started.
You cannot get the correct value for CO
2
zero adjustment if internal humidity is
not stabilized.
2. CO
2
zero adjustment
䋨1䋩 Press CAL key for approx. 5 seconds.
䋨2䋩 The top (the 3
rd
) digit of temperature display blinks, other digits will go off.
䋨3䋩 Press CAL key again.
䋨4䋩 The top (the 3
rd
) digit of CO
2
density display blinks, other digit will go off.
䋨5䋩㩷 Set “00.0” with key and key. Press 㩷 ENT key.
䋨6䋩 The display will automatically revert to the present temperature.
3. CO
2
span adjustment
(1) Press CAL key for approx. 5 seconds.
(2) The top (the 3
rd
) digit of temperature display blinks, other digits will go off.
(3) Press CAL key again.
(4) The top (the 3
rd
) digit of CO
2
density display blinks, other digit will go off.
(5) Set the present correct value with key and key. Press 㩷 ENT key.
(6) The display will automatically revert to the present temperature.
Note) When Key Lock is ON, calibration mode is disabled.