Vacuum pump system SCC 950
Assembly and functions
Translation of original Operating Instructions, English, KNF 304771-304773 07/18
17
The power supply also makes it possible to supply the hand termi-
nal with electrical power directly from a mains.
A signal sound on the hand terminal will indicate when the batter-
ies are nearly drained.
5.2. Pump
Assembly
1
Outlet valve
2
Inlet valve
3
Pumping chamber
4
Diaphragm
5
Cam
6
Connecting rod
7
Drive space
Fig. 4: Pump assembly
How diaphragm pumps work
Diaphragm pumps transfer, compress (depending on pump ver-
sion), and evacuate gases and vapors.
The elastic diaphragm (
4
) is moved up and down by the cam (
5
)
and the connecting rod (
6
).
In the downward movement, the dia-
phragm sucks in the gas to be transferred via the inlet valve (
2
)
and in the upward movement, it presses it out of the pump head
via the outlet valve (
1
). The diaphragm hermetically seals the
pumping chamber (
3
) from the pump drive (
7
).
