BUCHI SpeedExtractor E-916 - Manual (Page 79)

8 Troubleshooting
79 SpeedExtractor E-916/E-914 Operation Manual, Version D
More than one position is clogged (Error 41)
Once the SpeedExtractor has shown the error messages 29 – 34, 35 – 40 or 41 and the pressure is
released following the instructions given in the flow charts, it is then necessary to locate the blockage.
To do so, insert empty cells without filter papers, metal frits and plugs in the positions in question.
Start a flush into the collection vials (see section 6.2.6). If solvent flows into the vials, the cell (sample
inside the cell, the filter or frit) was blocked. If solvent does not flow into the vial, the SpeedExtractor is
blocked and further steps are necessary.
Error 35 – 40
Position X clogged: press repeat to
discharge or relieve the pressure
manually.
Repeat
Pressure released?
Control of pressure in
Relieve pressure manually
No wobble position; position is deacti-
vated. Extraction of other positions
p < 1 bar
Error 42 Error 42
START START
p > 1 bar
Relieve pressure
manually
End: heater opens End: heater opens
Control of pressure in
Error 35 – 40
yes
no
Extraction with all posi-
tions
End: heater opens
STATUS
STATUS
START repeat