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A Jerome 631-XE hydrogen sulphide analyser supplied by Able Instruments and Controls has been included in portable equipment used by emergency response teams to monitor air quality.

Hydrogen sulphide (H2S) is one of a number of parameters that the Environment Agency (EA) wants to be able to monitor during an incident that could potentially cause adverse air quality.

H2S is a highly toxic and flammable gas that interferes with cellular respiration with effects similar to carbon monoxide and hydrogen cyanide; therefore, monitoring its existence during an air pollution incident is paramount.

With the push of a button, the portable Jerome 631-XE hydrogen sulphide analyser displays low-level concentrations in seconds.

It offers an analysis range of 0.003ppm to 50ppm for odour and corrosion control, safety and leak detection in industries such as wastewater treatment, oil and gas, pulp and paper and farming.

The instrument weighs 3kg, utilises an internal rechargeable battery pack or AC power and can be carried to suspected sources of hydrogen sulphide for detection and measurement.

Locked in survey mode, the 631-XE automatically can display hydrogen sulphide concentrations as quickly as every three seconds.

The Jerome 631-XE utilises a gold film sensor.

The sensor’s selectivity to hydrogen sulphide eliminates interferences from sulphur dioxide, carbon dioxide, carbon monoxide and water vapours.

When the sample button is pressed an internal pump draws air into the instrument.

Any hydrogen sulphide in the sample is adsorbed by the sensor, which registers a proportional change in electrical resistance.

The hydrogen sulphide concentration is displayed on the LCD screen, where it remains until the next sample is taken.

Able Instruments and Controls

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