Labfors 5 – Version for Microorganisms
Cleaning and Maintenance
Page
172
of
205
22 January 2019
INFORMATION
If the test record requires that the culture is killed off after culti-
vation by autoclaving the culture vessel, the valves of the sam-
pling system may become stuck due to reside of the culture so-
lution. In such a situation, it would be better to autoclave the
sampling system separately in a beaker of water (hoses filled
with water, filter removed).
10.8 Cleaning the Exit Gas Cooler
If the exit gas cooler is only lightly soiled, an ultrasonic bath for ap-
prox. 15 minutes is sufficient to clean it.
However, if foam has entered the exit gas cooler during cultivation,
it must be cleaned thoroughly.
To do so, proceed as follows:
Procedure
1.
Put the exit gas cooler into 0.1 N NaOH for 4 hours.
2.
Rinse the exit gas cooler thoroughly with water.
3.
Put the exit gas cooler into an ultrasonic bath for 2 to 5
minutes.
4.
Flush the exit gas cooler with ethanol (70%).
5.
Thoroughly rinse the exit gas cooler with distilled water.
10.9 Cleaning the Basic Unit and Operating Panel
Proceed as follows to clean the surface of the basic unit and the
operating panel as required:
Procedure
1.
Switch the equipment off at the main switch.
2.
Disconnect the equipment from the mains supply.
3.
Wipe all surfaces with a damp cloth.
Clean with an appropriate disinfectant as necessary.
4.
Clean the screen with a wipe suitable for computer or laptop
screens.
Содержание Labfors 5
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