Thermo Scientific MSC-Advantage Operating Instructions Manual page 23

4 Description of the device
CAUTION – Unstable underpressure!
Do not switch the unit off as long as cables/
hoses are laid through the bushings.
If breached bushings are not used in operati-
on, new covers must be inserted in the ope-
nings to ensure stable underpressure in the
utility chamber (see Chap. 10.4).
CAUTION – Combustible gas!
If a gas burner is to be operated in the sample
chamber, an appropriate shut-off device for
the gas supply system (shut-off valve, solenoid
valve) must be installed.
To ensure a safe distance to the recirculation
filter the laboratory safety burner are to be
placed at the working surface and not at an
elevated position.
Use only laboratory safety burners in the sam-
ple chamber.
Potential equalization: To avoid static charges and the associated risks, if
necessary, intended supply connections and the device itself should be integrated
in the on-site potential equalization.
For this purpose, the potential equalization connection on the stand can be used.
The installation of utility connections to the built-in fittings must be made with con-
sideration to the current national technical rules.
External alarm systems: This alarm contact can be used for two different external
alarm systems:
• Potential-free contact (valve) for driving external exhaust air systems (technical
ventilation),
• Potential-free contact (monitor alarm) for the connection to an external alarm
system (failure reporting system) or gas supply solenoids.
CAUTION – High voltage!
The contact with live parts may result to a
lethal electrical shock. During work on elec-
trical equipment shut of the device and all
poles disconnected.
Repairs to the device must be carried out only
by trained and authorized expert personnel.
Operating Instructions Biological Safety Cabinet | MSC-Advantage
23