Sanyo MCO-5M Instruction Manual page 10

CAUTIONS FOR USAGE
9. Use clean containers
The Petri dishes or bottles for culturing may cause contamination in the chamber. Clean the containers
before storing them in the chamber.
10. Allow adequate space between the cultures
When storing cultures in the chamber, keep the Petri dishes or bottles containing the cultures sufficiently
apart from each other to allow adequate air circulation. Inadequate space may result in uneven
temperature distribution and CO concentration in the chamber.
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11. Stored materials
Never place acid or alkaline materials or materials that release corrosive gas in the chamber. Such
materials can cause failure resulting from discoloration or corrosion.
12. Alarm
Always investigate the cause and fix the alarm condition immediately when the alarm is activated. Refer
to page 25 for alarm details.
13. Do not use CAL key
Do not use CAL key on the control panel in normal use. Pressing this key leads the calibration mode.
Wrong key operation affects the basic performance. Never touch any other keys on the control panel in
the event of pressing CAL key accidentally. After about 90 seconds, the unit returns to chamber
temperature display mode automatically.
14. If not used
When the unit is not used, dispose of the water in the humidifying pan and completely remove any
moisture in the chamber completely. Check that the chamber is completely dry before closing the doors.
15.Thermal conductivity CO sensor
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It is not abnormal that the thermal conductivity CO sensor displays CO density higher than the actual
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density when the chamber humidity temporarily goes down. And take care of the level of humidifying
water because the lack of water affects the CO density.
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