ThermoFisher Scientific HERASAFE 2030i Series, Руководство по эксплуатации

Страница: 28 / 173

| Unit Description
18
|
50155215 Herasafe 2030i / Maxisafe 2030i
Chapter 4
Safety System
The safety system comprises a combination of protective and alarm systems that ensure
maximum personal and material protection.
Safety systems:

Vacuum-sealed air system
An air system in combination with HEPA filters for downflow and exhaust air forms
the basis of the safety system for personal and material protection.

Personal protection
Air aspired from the exterior along the entire working opening at a constant high
speed prevents that:

agents may leak through the working opening of the chamber.
As the exterior air pressure around the unit exceeds the pressure of the internal air
system, it is ensured that:

agents cannot be released to the exterior in the case of a leak in the cabinet
housing.

Product protection
A steady airflow within the air system ensures that:

a constant downflow allows the HEPA filters to remove contaminants so that the
samples are always surrounded by ultrapure air,

harmful particles are not carried over through the sample chamber (protection
from cross-contamination).

HEPA filters
The downflow (i.e. the air circulating within the device) and the exhaust air (air that is
released to the exterior) are cleaned by HEPA filters (HEPA = High Efficiency
Particulate Air Filter).

Safety lockout
To protect from UV radiation, the optional UV disinfection routine can be run only if
the front opening is closed. During UV disinfection, the front opening safety lockout is
activated and prevents harmful UV radiation from being emitted from the sample
chamber.

Media connections and components are to be installed by expert personnel only.
Warning system:

Airflow monitoring
Airflow monitoring determines the speed of the airflow in the sample chamber as well
as the inflow speed of the air aspired from the exterior through the working opening.
As soon as air speeds move above or below a specified safety value, a signal is
transmitted to the alarm system.