Phcbi MCO-5M Series, Operating Instructions Manual

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19
PREVENTING CONTAMINATION
To prevent contamination of the chamber, select a suitable installation site.
 Avoid locations with high temperatures or humidity.
Avoid locations with high temperatures or humidity, because of a greater presence of microorganisms in
the air.
 Avoid locations with passers-by or drafts.
Avoid locations near doors, air conditioners, fans, etc., where passers-by or drafts can facilitate the entry
of microorganisms into the chamber.
 If possible, use a cleanroom.
To achieve a better culture, it is recommended that a cleanroom be used if one is available.
 Use clean containers.
The greatest cause of contamination is dirty containers for cultures. Be careful not to get containers or
trays dirty when taking them in and out.
 Keep the chamber clean.
Wipe off any fingerprints. If water spills from the humidifying pan, or if the doors are left open for a long
time, condensation may form on the inside of the doors. If that occurs, wipe off the condensation with a
dry sterile gauze. In particular, clean and disinfect the chamber if the culture medium is spilled. For details,
refer to “ROUTINE MAINTENANCE “on page 27.
 Fill with sterile distilled water in the humidifying pan.
Always fill with sterile distilled water in the humidifying pan, and replace once a week.
The water level alarm lamp (RH PAN) on the control panel blinks when the water level is low. Quickly refill
the sterile distilled water in the humidifying pan when the water level alarm blinks. Adding
low-temperature water will significantly lower the temperature in the chamber. Clean the humidifying pan
once a month.
 Keep the incubator out of direct airflows from air conditioners or fans.
Cool airflow from an air conditioner may cause condensation and lead to possible contamination.