![Thermo Electron BBD 6220 Operating Instructions Manual Download Page 33](http://html.mh-extra.com/html/thermo-electron/bbd-6220/bbd-6220_operating-instructions-manual_1104276033.webp)
Operating control
The microbiological safety of the unit is largely dependent on the proper conduct of the persons
using the unit. Refer to the Appendix "Basic rules of sound microbiological engineering practice".
Be sure to comply with the instructions contained in this manual as well as all applicable regula-
tions and directives in your country (FRG: ZH 1/119, ZH 1/342, ZH 1/343, ZH 1/598).
Before putting the unit into operation
Put on all safety garments necessary to protect hands, face and body; remove jewelry.
Disinfect and clean the chamber and fittings regularly. Only use lint-free materials to wipe
surfaces clean.
Do not use explosive disinfectants. When using alcoholic disinfectants, be sure they comply
with all applicable regulations of your country (FRG: ZH 1/598).
During operation
Correct loading determines the temperature conditions in the chamber. If large objects or
auxiliaries are placed inside the chamber, this can impair the temperature distribution in the
unit.
When loading the unit, do not arrange articles too close to one another on the shelves
(use only approx. 70 % of surface area) in order to avoid impairing air circulation and en-
sure constant heat flow.
Do not impair temperature distribution. This is mainly caused by the following:
Covering the air vents.
Voluminous objects or apparatus.
Equipment releasing large amounts of heat.
Do not change the settings of the temperature protection devices as this will render load
protection ineffective.
Operating interruptions
If operations are interrupted, make sure that no contamination hazards can occur.
Remove, disinfect and clean any objects or auxiliaries put into the unit.
Disinfect and clean the chamber.
Disinfect and remove any residues.
Disinfect the unit with hot air (disinfection routine).
8. OPERATION
50 079 041
33/45