A new generation of modular gas analyser

Gas analyser

A new generation of modular gas analyser

05 Oct, 2026

ECO PHYSICS’s nCLDAL2/855 is the next generation in two-channel high precision nitrogen oxide measurement. Unique in speed and reliability, this analyser is QAL 1 certified according to ISO/EN 14211 and is modular designed and capable of simultaneously measuring NO, NO2 and NOX. The analyser’s expandable capabilities allow assessment of hot and humid gas sources without additional cooler. The new and intuitive graphical user interface also individually displays and connects to other instruments’ data.

The nCLDAL2/855 includes everything for measurement of NO, NO2 and NOX. The fully revised detector-block, the enhanced gas flow paths and the improved pressure as well as temperature independence of the nCLD 800 Series instruments allow for even lower detection limits. Overall stability and reliability are lifted to a new level. The optional electro-mechanical bypass system balances out even fastest pressure variations occurring in the sample flow. Furthermore, the analyser is adaptable to numerous non-standardised applications. The calibration of the unit runs quickly and automatically, with all necessary data available anywhere and at any time.

The new touch sensitive graphical user interface enables the user to individually adjust the instrument operation and data management according to his/ her needs and applications. The bright 7” monitor gives a clear overview and allows numerical and graphical display of values. Multiple digital in- and outputs guarantee a maximal connectivity for your remote operation, control and maintenance of the nCLDAL2/855, ensuring unsurpassed precision and reliability.

ECO PHYSICS also offer the nCLD AL3/8555, which includes ammonia (NH3) analysis capabilities, along with NO and NO2 .The nCLD AL2/855 and nCLD AL3/8555 are manufactured in a new compact and modular layout, in which each essential component of the chemiluminescence analyser hosts its own CPU and interacts with other CPUs by BUS-communication. This assembly increases accessibility and serviceability by reducing wiring and piping. The measurement principle will conform to the standard method for NOX-detection in ambient air (EN 14211).

The nCLD AL3/8555 is the ideal instrument for ambient air and specialty gases monitoring, either installed in racks, fixed monitoring stations or mobile laboratories. Besides the ambient air in the open environment, the analyzer is also suitable for gas and air quality monitoring in production plants (TLV = threshold limit value). The measurement ranges are individually adjustable, the parameters are NO, NO2, NOX and NH3 . The instrument’s inlet operates at ambient pressure. Calibration of the unit runs quick and automatic while all necessary data is continuously stored and readily available anywhere and at any time. The flexible measurement ranges of 0-50ppm NO/NO2 and 0-10ppm NH3 at a detection limit of 0.4ppb, qualify the nCLD AL3 also for impurity detections in specialty gases. For example in food & beverage applications or semicon gases.

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IET 36.5 Sept/Oct 2026

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