Assembly and functions
Vacuum pump system SCC 950
14
Translation of original Operating Instructions, English, KNF 304771-304773 07/18
The SCC 950 vacuum pump system uses a pump to generate a
vacuum with which two separate processes can be controlled with
the help of the two hand terminals (Fig. 2/
4
and
13
, p. 13) or a PC.
The control module (
15
) contains two vacuum (
17
and
18
) and two
ventilation connections (
16
and
19
). Integrated non-return valves in
the vacuum connections stop the two processes from affecting
each other. The integrated pressure sensors each determine the
current process pressure.
Collection flask
(9)
collects on the suction side of the pump parti-
cles and drops that were, contrary to the requirements of the
pump, suctioned from the vacuum chamber. The collection flask is
coated (implosion protection) and fastened to the vacuum pump
system via a flask clip (
7
).
The high-performance condenser (
3
) at the pump outlet recovers
solvent from the transferred gas instead of allowing it to get into the
environment or the fume hood. The high-performance condenser is
surrounded by a shell for temperature insulation and explosion
protection.
Solvents separated in the high-performance condenser are collect-
ed in the collection flask (
8
), which is coated for explosion protec-
tion. A flask clip (
7
) fastens the glass flask to the condenser flange.
A recirculating cooler or continuously flowing cold water (or another
cooling medium) cools the high-performance condenser to the
condensation temperature.
The charging station (
12
) is enclosed with the delivery and can
simply be placed next to the vacuum pump system. It is used to
charge hand terminal 2 (
13
) when hand terminal 1 (
4
) is on the
vacuum pump system. If required, it can also be fixed to the vacu-
um pump system with the enclosed bracket (see Chapter 6.1, p.
19ff).
5.1.2. Vacuum pump system functions
The vacuum pump system can be operated in four different modes:
Evacuate
The vacuum pump system evacuates a vacuum chamber
with adjustable pump capacity.
Pressure Control
The vacuum pump system controls the system pressure to
the selected value (constant pressure).
Automatic
The vacuum system independently finds the sample's va-
por pressure and adjusts the process pressure according-
ly.
In operating mode "Automatic" only one active process
can be operated at a time. A possible second process
can only be started after ending the first process.
