12
Operating instructions XENOTEST BETA+
3.
Location requirements
3.1
Room climate
Climatic requirements of the location:
During continuous operation, the heat emitted from the irradiator cooling causes a constant
change of the room climate.
Therefore, the instrument must be installed only in a sufficiently ventilated, dust-free room.
•
Room temperature: between 18 °C and 25 °C
•
Relative humidity: 50 % max
3.2
Room ventilation
The room where the instrument is installed must be connected to an air recirculation system
with a capacity that ensures an incoming volume of air of at least 400 m³/h.
The incoming air must be cleaned using a filter of filter class EU 4
The laboratory room must be kept free from dust.
3.3
Instrument exhaust air system
The irradiator cooling of the XENOTEST BETA+ must be connected to an exhaust air system.
The irradiator cooling exhaust air can be routed directly into the open if the exhaust air sys-
tem complies with the following:
•
The exhaust air duct must be made of flexible, heat-resistant material since the exhaust
air temperature can rise up to 120 °C.
•
The length of the exhaust air duct must not exceed 3 m.
•
The exhaust air duct must have a minimum diameter of 100 mm.
The connecting sleeve at the XENOTEST BETA+ has a diameter of 100 mm.
•
The exhaust duct must not have more than two 90° elbows.
•
If a length of more than 3 m or more than two 90° elbows are required, an on-site
exhaust air blower must be installed.
The exhaust air from the test chamber can be routed into the room where the instrument
is located and recirculated by the room ventilation system.
NOTE - Function impairment
If the maximal length of the exhaust air duct
and the permitted number of 90° elbows (max
2) are exceeded, the instrument exhaust air
system may overheat. In this case, the safety
devices of the XENOTEST BETA+ will interrupt
the power supply of the instrument perma-
nently.
