ABB EasyLine Series Instructions For Installation Start-Up And Operation page 13


The seal integrity of the combustion gas line (see page 116) outside
the gas analyzer and the combustion gas feed path (see page 118) in
the gas analyzer must be checked on a regular basis.

The maximum combustion gas flow (see page 29) may not be
exceeded.

The maximum pressures of combustion gas and combustion air (see
page 29) may not be exceeded.

The combustion gas flow rate must be limited to a maximum of
10 l/h of H or 25 l/h of H
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has to provide suitable measures (see page 29) outside the gas
analyzer.

A shut-off valve (see page 29) must be installed in the combustion
gas supply line to increase the safety in the following operating
states:

Shutting down the gas analyzer,

Failure of the instrument air supply,

Leakage in the combustion gas feed path inside the gas analyzer.
This shut-off valve should be installed outside the analyzer house in
the vicinity of the combustion gas supply (cylinder, line).

If there is no automatic shut-off of the combustion gas supply to the
gas analyzer in case of an instrument supply failure, a visible or
audible alarm must be triggered (see page 129).

When measuring flammable gases, it must be made sure that in case
of a failure of the instrument air supply or of the analyzer module itself
the sample gas supply to the analyzer module is shut off and the
sample gas path is purged with nitrogen.

The unobstructed exchange of air with the environment must be
possible around the gas analyzer. The gas analyzer may not be
directly covered. The openings in the housing towards the top and at
the side may not be closed. The distance to laterally adjacent built-in
components must be at least 4 mm.

If the gas analyzer is installed in a closed cabinet, adequate
ventilation of the cabinet must be provided (at least 1 change of air
per hour). The distance to adjacent built-in components towards the
top and at the side must be at least 4 mm.
Safety Information
/He mixture. For this purpose, the end user
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