Büchi Labortechnik AG
Installation | 5
Operation Manual Sepiatec SFC-250
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The installation site must meet the following requirements:
Firm, level surface.
Take into account the maximum product dimensions and weight. See Chapter 3.4
"Technical data", page 18
Clearance on each side of the instrument must be at least 200 mm.
Do not expose the instrument to any external thermal loads, such as direct solar
radiation.
Do not expose the instrument to increased electromagnetic emissions.
Electromagnetic fields in the frequency range between 200 to 300 MHz can cause
the instrument to operate incorrectly.
Make sure that the installation site meets the requirements of the safety data
sheets for all solvents and samples used.
It is recommended to install the instrument in a fume hood that remove solvent
vapours and gases directly from the proximity (minimum air exchange 200 m³/
hour).
The instrument is designed for use a laboratory bench. The instrument can be
connected to a venting system by the connection nozzle on the left side.
The Exhaust line inner diameter for the CO
2
gas waste must be at least 10 mm.
The instrument must be at least 200 mm away from adjacent walls or other
instruments. The distance at the reverse side should be at least 100 mm. This
ensures adequate ventilation and unrestricted access to the main switch and
fuses.
Please make an external chiller available to keep the CO
2
pump head at a constant
temperature of about 10 °C independent of the ambient temperature. Required
cooling capacity (Ethanol) 0.26 kW, connection: G1/4 inch or G1/8 inch.
The power line must be free from electromagnetic interference (EMI) and
grounded. The device should not be connected to a power supply system that is
vulnerable to sudden changes in power demand. If significant fluctuations in
voltage occur, a constant voltage transformer may be required.
Liquid CO
2
supply, pressure 60 - 75 bar.
1/8 inch connector (Swagelok)
A CO
2
alarm should be set up at the site to warn of high levels of CO
2
in the air.
The associated emergency switch, which should be installed within the user’s
accessibility and outside the fume hood. It is used to switch off the pumps,
heating elements and CO
2
supply in the event of danger.
For the operation of a mass spectrometer nitrogen supply must be available at the
workplace (laboratory supply, nitrogen generator or cylinder).
