The nCLD AL is the next generation in single-channel high precision ambient air monitoring instrumentation. Unique in speed and reliability, the nCLD AL is modular designed and capable of sequentially measuring NO, NO2 and NOX. The analyzers expandable capabilities allow assessment of additional nitrogen based parameters. Its graphical user interface also individually displays and connects to other instruments’ data.
Flexible Ambient Air Monitoring The nCLD AL is the ideal instrument for ambient air 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 air quality monitoring in production plants and offices (TLV = threshold limit value). The nCLD AL is a one-channel NOX-detector based on a modular principle. The measurement ranges are individually adjustable, the parameters are NO, NO2 and NOX and 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.
User Friendliness 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 and flexibility for the remote operation, control and maintenance of the nCLD AL, ensuring unsurpassed precision and reliability.
Compact, Modular and Intelligent! The nCLD AL is manufactured in a new compact and modular layout, in which each essential component of the chemiluminescence analyzer 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).
single chamber CLD with cooled PMT for sequential measurement of NO, NO2, NOX
four freely selectable ranges from 100 ppb – 50’000 ppb
Min. detectable concentration*
Noise at zero point (1σ) *
30 sec (min. toggle interval)
Rise time (0-90%)
<1 sec (single-channel mode)
0 – 40 °C
5-95% rel. h (non-condensing, ambient air and sample gas)
Sample flow rate
600 -1200 mbar abs.
Dry air use for O3 generator
internally generated (no external supply gas required)