mru OPTIMA 7 BIOGAS, Руководство пользователя

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MRU Instruments, Inc. USER MANUAL OPTIMA 7 BIOGAS
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Safety instructions
Biogas or other similar gases (landfill gas, bio-methane, coal seam gas etc) is containing flammable component CH4 and
toxic component as well (H2S and CO2).
Analyzers sample a certain volume of the biogas, and vent it to the ambient air.
For this reason, there are two aspects which must be considered:
1) toxicity danger of sample gas
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 by the user 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 using portable biogas analyzer at under-
ground levels. Beside of that CO2 is also odourless!
·
It is not allowed using the portable biogas analyzer in confined space or rooms without sufficient venti-
lation.
·
Sample gas exiting the analyzer will flow in the ambient air and only outdoor use or forced ventilation
rooms are suitable for using the portable 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.
·
MRU instruments may be operated in hazardous areas zone 2 by skilled users obeying local guidelines
e.g. by using LEL gas detectors
·
Stationary instruments are not allowed to be mounted in hazardous areas; these instruments will be
placed in safe area only, but never in confined placed, always in outdoor area or room with forced
ambient air 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 mains voltage!
1 Table of contents
MRU analyzer is not a personal safety device and the ambient air
monitoring feature is only indicative.
To enter in confined spaces or hazardous area, the persons must
be equipped with a certified personal safety gas detector