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Organic matter decomposes, releasing gases that can be harmful, toxic or explosive.

This phenomenon means, on the one hand, that these decomposition processes (sewage treatment plants, storm water basins, rivers, sewers, storage or processing of organic matter residues and industrial effluents) must be controlled from the point of view of explosion risk, and, on the other hand, that their effects must be regulated so as not to pollute the environment.

A sampler is still the best solution for analysing ambient gases, as this equipment provides a very short response time once the first warning thresholds are exceeded.

After that, a control system with solenoid valves or appropriate ventilation will ensure effective compliance. Hydrogen sulphide, methane, carbon monoxide and carbon dioxide are all sensitive and dangerous gases that require appropriate monitoring.

Gas sampling

Organic matter decomposes, releasing gases that can be harmful, toxic or explosive.

A sampler is still the best solution for analysing ambient gases, as this equipment provides a very short response time once the first warning thresholds are exceeded.

Multiplexing gas sampling station - MC - ASCO INSTRUMENTS - 1

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Gas sampling station (multiplexing)

MC

From 1 to 8 ways

Temperature, dust and H2O management.

Set for continuous measurement of gases such as CH4, H2S, CO... in enclosures, tanks, sewers, silos...

Polyester sampling box for safe area installation, including :

Integrated gas sensors.
Manual purge system.
4-20 mA analog output available for each sensor.
Possibility of integrating up to several sampling points in one box.
Continuous flow control with clogging alarm.

Sample processing includes :

Pre-treatment filter with manual drain.
Fine fiber filter with rot-proof cartridge.
Adjustable flow control with sight glass and alarm relay contact.
A flowmeter for flow visualisation.
A single-body pump with a flow rate of 6 liters / minute.

Available options:

Flame arrest for Zone 1 available in case of Zone sampling.
Line blowback.
Automatic purge with peristaltic pump.
Stainless steel cooling coil.

BIOX measuring station

BIOGAS

The BIOX unit consists of two cabinets for continuous biogas measurement.

An electrical box, to be placed in a safe area, consisting of a PLC with a color touch screen, enables :

Controls solenoid valves and other components located in the ATEX cabinet.
Visualization and processing of sensors located in ATEX zones.

An ATEX-certified cabinet with the following components:

Sample treatment with cooler, primary filter, condensate trap and particle filter
Configurable automatic purge algorithm.
Infrared sensor for methane (CH4) measurement.
Paramagnetic sensor for oxygen (O2) measurement.
An electrochemical sensor for measuring hydrogen sulfide (H2S).
An oxygen supply system for electrochemical measurement.
CO2 can be measured by subtracting the O2 and CH4 values measured.
The enclosures are made of glass-fiber-reinforced polyester with an antistatic charge.
All components in contact with the gas are made of 316L stainless steel and PTFE.
The gas circulation system in the sensors, as well as the cooler, run on compressed air.