Installing the Gas Analyzer
69
Connecting the Gas Lines
Connect the Flexible Tubes
Push the flexible tubes with inside diameter = 4 mm onto the nozzles and
secure by means of hose clamps.
Connect the Pipelines
Connect the stainless steel pipes to the fittings according to good
professional practice and making allowance for the tightness
requirements.
Install the Micro-Porous Filter
A pre-assembled micro-porous filter (disposable filter, part no. 769144 –
not for Fidas24) is included in the scope of delivery (see page 14).
To install the micro-porous filter, push the short piece of flexible tubing on
to the sample gas inlet; connect the sample gas line to the long piece of
flexible tubing with the nozzle.
Install the Flow Meter
Install a flow meter or flow monitor with a needle valve before the sample
gas inlet and if required before the purge gas inlet in order to be able to
adjust and monitor the gas flow rate.
Provide for Gas Line System Flushing
Install a shut-off valve in the sample gas line (definitely recommended
with pressurized sample gas), in order to provide a means for purging the
gas line system by feeding in an inert gas, e.g. nitrogen, from the gas
sampling point.
Evacuate Exhaust Gases
Conduct waste gases directly into the atmosphere or through a line with a
large internal diameter which is as short as possible, or into a gas
discharge line. Do not conduct waste gases via restrictions or shut-off
valves!
NOTES
Dispose of corrosive and toxic waste gases according to the regulations!
Take note of the sample gas inlet conditions!
Purge (see page 93) the sample gas feed path before commissioning.
Do not feed in the sample gas until the gas analyzer has reached room
temperature and the warm-up phase (see page 94) has ended!
Otherwise, the sample gas could condense in the cold analyzer.