A high-pressure vent option now available for the Servomex 2200 process oxygen analyser has made possible simple and reliable systems for returning sample gases to a process at elevated pressure.
The high-pressure vent option includes a specially adapted and tested paramagnetic cell and optional pressure compensation, and is suitable for pres-sures up to 310 kPa with O2 concentrations up to 21 %. This system has Atex Category 2 approval.
By using a Servomex 2200 analyser set up for high vent pres-sures it becomes possible to use a sample conditioning package that is much simpler to operate and maintain than older designs. lt is also possible to analyse the oxygen content of gas from a compressor outlet, where the vent gas is returned to the inlet at a lower pressure without the use of a backpres-sure regulator.
The gas pressure in the 2200 analyser cell is carefully monitored with great precision and the analyser’s readings are constantly corrected to ensure accurate readings.
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