Safety Systems - Thermo Scientific 1500 A2 Series Operating Manual

Section 1
Description

Safety Systems

1-2 1500 Series A2
Three service valve access ports are located on each side panel. When
installing service valves, remove the center of the port plugs at the
perforations.
The optional stand may be ordered in two configurations; a manually
adjustable from 30" to 38" working height, and a fixed 34" working
height with attached casters.
A stainless steel one-piece work surface is standard. Armrests ensure a
comfortable working position for the user and minimize blockage of
airflow at the front grille.
Internal outlets, provided as the power source for accessories, are provided
standard in the following configuration:
1584，1589，1574，1579: two single right and left side
Test hoses (aerosol challenge ports) are located under the work tray. The
supply plenum hose is located on the left and the exhaust plenum hose on
the right.
Note Do not remove the caps of the two test hoses to check for supply
and exhaust airflow. s
Negative pressure air system
A negative pressure air system combines with HEPA filters in the
supply and exhaust airflow for personnel and product protection.
Personnel protection
Inflow air along the entire working opening at a constant high velocity
prevents leakage from the work opening of the chamber.
Exterior air pressure being higher than the internal air pressure creates
negative pressure, ensuring containment in case of cabinet leakage.
Product protection
Steady airflow within the air system ensures constant downflow,
allowing the HEPA filters to remove contaminants so that the samples
are always surrounded by ultra-pure air. Harmful particles are not
carried over the sample chamber (protection from cross-contamination).
HEPA filters
The downflow air within the chamber and the exhaust air are cleaned
by HEPA filters.
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