BUCHI SpeedExtractor E-916 - Manual (Page 71)

8 Troubleshooting
71 SpeedExtractor E-916/E-914 Operation Manual, Version D
8 Troubleshooting
The following chapter describes how to resume operation of the instrument in the event of any minor
problem. It lists some possible occurrences, their probable cause, and suggests how to remedy the
problem. The troubleshooting table below lists possible malfunctions and errors of the instrument and
describes operator-enabled courses of action to correct some of those problems. The appropriate
course of action is listed in the column “Remedy”.
More complicated malfunctions or errors are usually handled by a BUCHI technical engineer who has
access to the official service manuals. In this case, please contact your local BUCHI customer service
agent.
8.1 Malfunctions and their remedy
8.1.1 Action in case of a fire
Abort the extraction process, close the safety shield of the ventilation hood and turn off the nitrogen
supply. Draw the fire with a CO
2
fire extinguisher.
8.1.2 General malfunctions and their remedy
In the following table, X refers to the position in the heating block, starting from left to right.
General malfunctions and their remedy
Malfunction Display information Possible cause Remedy
Error 1 Not defined
Error 2 Heater temperature out of range
(
DT > 30 °C). Start not allowed.
Please refer to user manual.
Preheating has not yet reached
the set temperature of the
method. Extraction or leak test
cannot be started. Wait until the instrument has
reached equilibrium. Take out the
extraction cells if the tempera-
ture is far out of range. If this
occurs frequently, contact BUCHI
customer service. The heater
may have a problem.
Error 3 Heater temperature out of range.
Start anyway? Occurs when the previous
method was run at a higher
temperature than the current
one. The oven temperature is too
high (i.e.
DT > 3 °C higher than
the set temperature).
Wait until the instrument has
cooled down to the set tempera-
ture to achieve equilibrium and
reproducible conditions. Cooling
may be accelerated by placing
cold cells into the heating block.
Switch back to sample cells
when the set temperature is
reached. Alternatively, extrac-
tion or leak test can be started
anyway if reproducibility is not
so important.
Error 4 Change vials. The collection vials need to be
changed, because collection
of the next cycle would cause
overflow (see section 6.4.3). Replace the vessels in the collec-
tion tray with empty ones.