Gas conditioning systems are compressor or Peltier coolers used to lower the dew point of raw samples from emission sources or process gas streams to prevent it from condensing when entering the analysis system. The stability of the sample dew point is essential to avoid cross interferences from residual moisture onto other components of interest. The very low gas dissolution rate is reached using the new patented cooler technology. Both the permanent separation of the condensate from the gas phase, as well as the shorter contact time of the gas in the system, plays important roles in reducing gas dissolution rates. Each cooler can be rack or wall mounted without additional accessories, and are perfectly suited to industrial environments.

With up to 6 demountable PFA®-coated heat exchangers  installable either in the factory or at a later time, the gas conditioners range allows flexibility and versatility, with numerous configurations possible. This versatile design creates many possibilities. An exclusive feature available consists of the humidification of calibration gases to eliminate the risk of volumetric errors.

The exchangers can be connected in series or in parallel depending on customer requirements, enabling multistream and redundancy possibilities. Several options are available to optimise continuous operation or work in conjunction with the downstream analysers such as condensate drain, liquid alarm or built in temperature controller for external heated device.

The gas conditioners range offers precision, safety, and long-term stability for extractive analytics with:

The new ACC compressor cooler series incorporating an advanced structural design with housing suitable for both wall-mounting (standard) and 19“-racks by using optional brackets. The ACC series is composed of unique micro-processor controlled compressor coolers designed with a powerful dew point stabiliser for continuous operation in industrial settings. Three versions are available: ACC100 single and dual heat exchanger, the ACC400 with up to 4 heat exchangers and the ACC800 for installation in explosive areas.

The APC series is available in three flow versions, uses a Peltier element to regulate the gas outlet temperature, and is suitable for typical CEMS and process online analysis applications. The compact design of the ACP coolers is appreciated in integrations where space is limited as well as for mobile applications such as source testing.

The ASS sampling system is a rack or wall mount complete sampling system available in two flow versions. The ASS series minimises integration work while allowing efficient and reliable continuous emissions or process gases monitoring.

The AOX high performance NOx converters series allows optimal NO2 conversion when continuous NOx monitoring is required.

The ADS CEMS controller is a digital gas conditioning system designed to handle continuous and online operation requirements. The ADS is equipped with a PLC which is used to control sampling, calibration, and safety purge sequences. The PLC allows site and system specific configuration, and is housed with the rest of the sampling system in a compact 19”-housing unit for integration into a supplied or third party monitoring systems.

Single or dual heat exchanger compressor gas cooler.

The ACC400 design enables up to 4 heat exchangers and peristaltic pumps to be installed either at the factory, or at a later time, without any problem. The exchangers and pumps can be connected in series or parallel depending on customer requirements. An electronic system not only monitors the dew point, but also the ambient temperature. Extremely reliable for long-term operations in industrial settings.

The EX ACC800 is designed for installation in explosive areas with 2 heat exchangers for single or dual stream configurations.

The controller is self-checking to minimise the need for site attendance. Temperature alarm output and a set of LEDs ensures safe operation. Condensate is removed either into condensate vessels or by automatic condensate drainers which can be attached to the heat exchangers within the cooler’s outer contour.

The APC series’ electronically controlled Peltier cooler incorporates a unique design of demountable heat exchangers housed in a robust and compact stainless steel enclosure suited to stationary application with limited space and mobile laboratories. This unique microprocessor controlled Peltier Cooler has been designed with a powerful dew point stabiliser. The dew point is set at 4°C but can be set at any value between 1 and 15°C. The condensate separated from the gaseous sample are removed by a peristaltic pump, automatic drain, or collected into a condensation vessel.

The digital controller offers various communication features such as programmable alarms, mA-output, digital inputs, and Modbus or RS485 communication.

The AOX NO2/NO converters are designed to be coupled with a NOx gas analyser for continuous emissions or process gas monitoring purposes. It is a thermal converter using a special catalyst which efficiently converts NO2 in sample gases to NO. The molybdenum catalyst and the accurate temperature regulation guarantee a 98% conversion efficiency, optimizing performance and extending the lifetime of the catalytic material.

An electronic PID temperature controller permits the setup and regulation of extremely stable temperature measured through thermocouple.

The converter is available with (AOX 2xx) or without a bypass valve (AOX 1xx).  The catalyst cartridges are compatible and suitable for various brands of converter. The cartridge filled and formatted ex works factory and is ready for use immediately and doesn’t generate any CO offset.

The ASS stationary sampling system is suitable for variable, discontinuous, and continuous operations. The entire gas sampling system is mounted on a plate for easy installation into a rack, cabinet, or mounted on a wall.  The ASS has automated sampling features based on the system status and work in combination with the equipment installed downstream. It includes a AMP Teflon coated sample pump, preliminary fine filter AUF, continuous sample condensate removal, and its application can be customised with options and accessories such as liquid alarms, additional temperature controllers for external heated devices, or a built-in online O2 sensor.

With the optional thermostatic paramagnetic O2-sensor, the ASS is a suitable and reliable instrument for monitoring oxygen concentrations in various gas analytical control applications including; process gas, emission monitoring gas, inert gas, flue gas, fermentation processes, ambient air, and laboratory process control measurements.

The ADS sampling system is a digital gas conditioning system integrated around a PLC with touch screen providing a comprehensive desktop with separate pop-up menus to check and control all parts of the conditioning system as well as external CEMS components. The PLC can be programmed to handle standard and application specific CEMS requirements such as automatic daily calibration checks, zero references, and safety purges in single, dual, or redundant CEMS set-up. The PLC and the entire sampling system are housed in a compact 19” enclosure for an easy installation into a supplied or third party gas analysis system. A preliminary front-panel fine filter type is installed at the inlet of the gas sampling pump and can be equipped with a variety range of filter elements in different materials and porosities. Any condensation is continually removed by a peristaltic pump.

A large range of options enhances the integration and long-term operations such liquid alarm, calibration valves, flowmeters, and heating regulation of external devices.