ABB EasyLine EL3060 Series Instructions For Installation Start-Up And Operation page 36

36 EasyLine EL3060 Series Commissioning Instructions
Connecting the Gas Lines
Connecting the Pressure Sensor
Installing the Flow Meter
Provide for Gas Line System Purging
Discharge Exhaust Gases
Connect the stainless steel pipes to the fittings (flame barriers)
professionally and taking tightness requirements into consideration.
ATTENTION
The maximum permissible tightening torque is 50 Nm. If this value is
exceeded, the internal gas connections could be damaged. The
explosion protection could be impaired as a result.
·
If the pressure sensor (see page 24) is connected to the outside by
hose, the yellow plastic screw cap must be screwed out of the
connection fitting of the pressure sensor (flame barrier) before the
gas analyzer is commissioned.
·
If the pressure sensor connection is not connected to the sample gas
outlet, it is required that the pressure sensor and the sample gas
outlet are on the same pressure level for an exact pressure
correction.
ATTENTION
The pressure sensor connection may not be connected to the sample
gas feed path for the measurement of flammable gases.
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.
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.
Conduct exhaust 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 exhaust gases via restrictions or shut-off
valves!
NOTES
Dispose of corrosive and toxic exhaust gases according to the
regulations!
Comply with the gas inlet and outlet conditions (see page 19)!
Purge 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 has ended! Otherwise, the sample
gas could condense in the cold analyzer.