BUCHI SpeedExtractor E-916 - Manual (Page 80)

8 Troubleshooting
80 SpeedExtractor E-916/E-914 Operation Manual, Version D
Blockages may be pushed out under extreme conditions. Therefore an extraction with the following
conditions should free the lines.
• Extraction conditions: temperature 200 °C, pressure 150 bar, 1 cycle, hold 10 min, discharge
5 min, flush with solvent 2 min and flush with gas 5 min. Use the same solvent, cell and vial size as
for the extraction when the blockage appeared.
• If the SpeedExtractor is still blocked after this extraction it will be necessary to identify the
blocked part. The flow test in the service menu allows locating the blockage within the instrument.
See section 8.2.4.
Error 41
Position X clogged: press repeat to
discharge or relieve the pressure
manually.
Repeat
Pressure released?
Control of pressure in
Control of pressure in
Relieve pressure manually of all
clogged positions
One position is deactivated, extraction of
other positions continues
p < 1 bar
Error 42 Error 42
START START
p > 1 bar
Relieve pressure
manually
End: heater opens End: heater opens
No error
Error 41
yes
no
Extraction with all posi-
tions
End: heater opens
STATUS
Error 42
A clogging occured during extrantion. Do you want to
open the cell lift? Alternatively, relieve the pressure
manually
Error 29 – 34 Error 41
START repeat
STATUS