mru SWG100 BIOEX User Manual page 8

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2) flammable (explosion) danger of sample gas
1) Inhaling toxic gases is harmful to health and can even cause death in some cases.
• It is the responsibility of analyzer user to ensure that person is skilled and trained
in safety aspects of gases being analyzed and procedures to follow while using this
instrument.
• Local regulations for possible exposition to toxic gases have to be known and obeyed
by the user of the analyzer
• Using a personal gas detector inside the biogas plant is highly recommended since
H2S in higher (very dangerous) concentration cannot be detected by human nose.
Only small concentrations around few ppm can be detected by human nose
• CO2 gas is heavier than air and therefore operator shall avoid working at underground
or confined spaces. Beside of that CO2 is also odorless!
• It is not allowed using the biogas analyzer in confined space or rooms
without forced ventilation.
• Sample gas exiting the analyzer will flow in the ambient air and only outdoor use
or forced ventilation rooms are suitable for using the biogas analyzer
2) Regarding flammable gases (e.g. CH4 methane) and hazardous area of operating the
instruments, user must also be able to recognize the area classification and be aware of using
the instrument there. This area classification is country specific, please observe and notice it.
• Stationary analyzers are allowed to be mounted in hazardous area zone 2 only if they
have the certificate of compliance. These instruments shall never be located in
confined places or rooms without forced ventilation.
Only trained personnel should carry out installation of stationary instrument and/or
maintenance, service and repair. Opening the stationary analyzer cabinet can expose
personnel to injuries and shocks from mains voltage!
SWG100 BIOGAS User Manual
MRU GmbH, D-74172 Neckarsulm