Solving sampling challenges with probes

Innovative HAG and ASR probes ensure safe, efficient sampling of toxic gases like H2S and SO2, with single-connection design, integrated safety features, and tailored sulphur management for reliable analysis

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SAMPLING toxic gases like hydrogen sulfide (H2S) or sulphur dioxide (SO2) for analysis poses significant challenges, primarily due to the high toxicity of these gases, the presence of high water or sulphur dew points, and the disposal of the hazardous analysed sample.

These challenges often lead to the abandonment of analysers due to safety concerns rather than mechanical failures.

An ideal solution to address these issues is a probe designed to require only a single process connection for both sample extraction and safe return.

Integrated with a builtin aspirator, AMETEK Process Instruments' heated acid gas (HAG) and advance sulphur reduction (ASR) probes use instrument air, nitrogen, or steam as the driving force, managed by the analyser.

When the analyser operates in the measuring/sampling mode, without faults or alarms, it draws the sample through heated lines from the process pipe to the analyser.

After analysis in the sample cell, the sample is returned safely back through the same connection.