Vacuum pump system SCC 950
Troubleshooting
Translation of original Operating Instructions, English, KNF 304771-304773 07/18
51
Software operation
Error
Possible cause
Remedy
The PC software cannot
establish a connection with
the vacuum pump system.
Vacuum pump system is
not switched on.
Switch on the vacuum pump system
The USB connection
between the system and
the PC is not working.
Check that the USB cable is properly
connected. If necessary, disconnect
the USB cable and reconnect it (re-
set the USB interface).
Pressure display shows
implausible values.
Pressure units were
changed.
Select the desired pressure unit.
Leak in the system.
See Tab. 9, "Insufficient vacuum
generated although the pump is run-
ning."
Pressure sensor has to be
recalibrated.
Contact KNF Service.
Tab. 11
Fault persists
If you are unable to identify the cause of the problem, please send
the vacuum pump system to KNF Customer Service (see address
on last page).
1. Rinse vacuum pump system to free the pump head, lines and
glass vessels of dangerous or aggressive gases (see Chapter
9.2.1, page 37).
2. Clean the vacuum pump system (see Chapter 9.2.2, page 37).
3. Send the vacuum pump system with completed Health and
safety clearance and decontamination form (see Chapter 13),
to KNF stating the nature of the transferred medium.
