BUCHI Wet Digester B-440 - Manual (Page 6)

2 Safety
6 B-440 Operation Manual, Version D
2 Safety
This section introduces the safety concept of the instrument and contains general rules of behavior
and warnings from direct and indirect hazards concerning the use of the product.
For the users safety, all safety instructions and safety messages in the individual sections shall
be strictly observed and followed. Therefore, the manual must always be available to all persons
performing any tasks described herein.
2.1 User qualification
The instrument may only be used by laboratory personnel and other persons who on account of
training and professional experience know the potential dangers that can develop when operating the
instrument.
Untrained personnel, or persons who are currently being trained, require careful supervision by a
qualified person. This Operation Manual serves as a basis for training.
2.2 Proper use
The equipment is designed and built as laboratory equipment. It serves to heat up organic
compounds with acids/peroxides for the wet digestion applications. It is also capable to perform dry
ashing at high temperatures.
A Scrubber (e.g. Scrubber B-414) has to be connected to the glass hood to safely withdraw and
neutralize fumes which will emerge during digestion. In any case, all exhausts and fumes leaving the
system or assemblies such as the Scrubber have to be withdrawn instantly by a fume hood. This is
mandatory to remove all possibly hazardous substances (e.g. acid fumes) from the working area. The
ventilation system of the fume hood has to be equipped with safety measures such as outlet filters to
avoid contamination of the environment.
When the Wet Digester B-440 is used in combination with other instruments (e.g. Scrubber and fume
hood) all related manuals are to be fully observed.
2.3 Improper use
Any other use than the one stated above and any application that does not comply with the technical
data is considered to be improper use. Improper use can cause hazardous situations for the operator
and / or for the instrument and might cause consequential property damage.
The operator bears the sole risk for any damages or hazards caused by improper use!
In particular, the following uses shall not be permitted
Installation or use of the instrument in rooms, which require ex-protected instruments. s
Use of samples which can explode or ignite due to shocks, friction, heat or sparks. s
The use of spare parts or accessories other than those mentioned in these operating instructions. s
The equipment may not be operated using combustible substances. s