Sanyo MCO-18AIC, Service Manual, Page: 71 / 87

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OPERATING INSTRUCTIONS
Key lock function
This unit is provided with a key lock function. When the key lock is ON, change of temperature or CO
2
density setting through the key pad is not available.
Note: The key lock is set in OFF mode (L0) at the factory.
Display Mode Function
Key lock is OFF Enable to change of temperature and CO
2
setting
Key lock is ON Disable to change of temperature or CO
2
setting
Procedure for key lock setting (change from key lock OFF to key lock ON)
Description of operation Key operated Indication after operation
1 ---- The current chamber temperature and
CO
2
density are displayed.
2 Press digit shift key for 5 seconds.
L0 is displayed in the temperature
indicator.
3
Press numerical value shift key
and scroll the figure to 1.
When pressed, the figure of settable
digit changes.
4 Press ENT key. ENT
The key lock is set to ON.
The current chamber temperature is displayed.
Note:
• The key lock function is available for temperature and CO
2
density setting.
• To cancel the key lock, set to L0 in the above procedure.