BUCHI SpeedExtractor E-916 - Manual (Page 74)

8 Troubleshooting
74 SpeedExtractor E-916/E-914 Operation Manual, Version D
General malfunctions and their remedy
Malfunction Display information Possible cause Remedy
Error 51 Pump pressure too high. Please
refer to user manual. During Extraction
The pump is purging against
a closed system, i.e. a closed
valve.
Check the state of the media,
position and outlet valve. Open
the corresponding valve(s) in the
SERVICE FUNCTIONS > VALVE
menu. Calibrate the rotating
valves (media and outlet valve) if
necessary.
During LEAK TEST:
Press OK to confirm the error.
The cell lift will open and the
LEAK TEST is finished. Calibrate
the pressure sensors to correct
the error!
Calibration procedure:
Enter the SERVICE FUNCTIONS
> VALVE menu and open the
position and outlet valves.
To calibrate the pressure sensors
enter the SERVICE FUNCTIONS
> SENSORS menu. Press NEXT
and start calibration by selecting
CALIBRATE.
Close all corresponding valves
again. Re-run the LEAK TEST to
verify the calibration!
Error 52
to
error 57 Position X: Pressure too high.
Please refer to user manual. During Extraction
The pressure at position X is
too high, most probably due to
clogging of the sample in the
extraction cell during operation.
Relieve the pressure manually by
opening the drain valve. Follow
the instructions outlined in
section 8.1.3.
During LEAK TEST:
Press OK to confirm the error.
The cell lift will open and the
LEAK TEST is finished. Calibrate
the pressure sensors to correct
the error!
Calibration procedure:
Enter the SERVICE FUNCTIONS
> VALVE menu and open the
position and outlet valves.
To calibrate the pressure sensors
enter the SERVICE FUNCTIONS
> SENSORS menu. Press NEXT
and start calibration by selecting
CALIBRATE.
Close all corresponding valves
again. Re-run the LEAK TEST to
verify the calibration!
Error 58 No position selected. Please
select at least one position. The positions accommodating
the samples are not selected. Select the corresponding
positions: EXTRACTION 
OCCUPIED POSITIONS. See also
section 6.2.4.
Error 59 Nitrogen inlet pressure out of
range. Please check nitrogen
supply. Nitrogen tank is not connected
or empty. Check the pressure and connec-
tion of the nitrogen tank. See
also section 5.3.