ThermoFisher Scientific HERASAFE 2030i Series, Operating Instructions Manual

Page: 139 / 173

Herasafe 2030i / Maxisafe 2030i
50155215 | 129
Cleaning and Decontamination |
Chapter 9
UV Disinfection after a Wipe/Spray
Disinfection
A UV disinfection can be performed either by using the optional integral UV lamps or by using
a mobile UV device. The run time of the routine can be preset with the operating panel.
UV Disinfection using the integral UV Lamps
Running the UV disinfection routine, see “Running UV Disinfection” on page 59.
Changing the UV Disinfection Time
Setting the run time for the UV disinfection, see “Setting UV Disinfection Cycle Time” on
page 74
Disinfection with Formaldehyde
A suitable disinfection procedure must be selected according to the scope of application
of the safety cabinet.
One possible method based on EN 12469/2000 is described below.
To cover the spectrum of action A, B, C and D, it is necessary to use another method.
Based on recommendations of the RKI (Robert Koch Institute), another disinfection
procedure is described in the service manual.
Procedure in accordance to EN 12469 / 2000:
For gas disinfection, formaldehyde is evaporated in the sample chamber of the completely
sealed cabinet. The quantity of the formaldehyde used depends on the sample chamber
volume of the cabinet version to be disinfected (see “Technical Data” on page 137). Per
cubic meter of sample chamber volume, at least 5 g formaldehyde must be evaporated
with 20 ml water (corresponds with 25 ml of a 20 % formaldehyde solution). The
formaldehyde evaporates immediately when its boiling point is reached. The required
reaction time is at least 6 hours.
Before disinfection remove the UV side covers and replace them afterwards.
Do not apply too much cleaning agent to the UV emitter box. The ground fault
circuit interrupter may release.
Disinfection procedure
Disinfection with formaldehyde bears considerable risks, the procedure must
only be performed by specially trained authorized service personnel and in ac-
cordance to national regulations.