14
Installation
5.5
Filling up the operating fluid
The type and amount of operating fluid should be visible on the pump's rating plate for
every rotary vane pump.
The delivery consignment for the
standard pump
contains sufficient operating fluid for
one filling. The use of other operating fluids requires prior authorisation from Pfeiffer Vac-
uum.
Permissible operating fluids
●
P3 (Standard operating fluid)
●
D1 for special applications (e.g. higher operating temperatures)
– Ultimate pressure measured with gas type dependent gauge: < 5
·
10
-2
hPa
Filling up the operat-
ing fluid
Unscrew operating fluid filler screw 327.
Fill up operating fluid;
– correct filling level during operations: within the markings at the sight glass frame.
Fig. 8:
Filling up the operating fluid
Screw in operating fluid filler screw 327.
Check operating fluid level only when the pump is warm and running; therefore
– close vacuum flange and gas ballast valve,
– correct filling level during operations: within the markings at the sight glass frame,
– check operating fluid daily in non-stop operation, otherwise whenever the pump is
switched on. Refilling is possible when the pump is in final vacuum operation.
NOTICE
Use approved operating fluids only!
The use of operating fluids that have not been approved by Pfeiffer Vacuum shall result
in a limited warranty. In such cases, it is not possible to guarantee that product-specific
performance data will be achieved.
Prior consultation is required before using other application-specific operating fluids.
max.
min.
WARNING
Toxic vapours!
Danger of poisoning when igniting and heating synthetic operating fluids (e.g. F4/F5)
above 300 °C.
Observe the application instructions.
Do not allow operating fluid to make contact with tobacco products; observe safety
precautions when handling chemicals.
