Gas Analyzer

The nCLD EL is the next generation in single-channel NO/NOX measurement. Unique in speed and precision, the nCLD EL is modular designed and allows the continuous measurement of concentrations in the range of parts per million. The measuring principle complies with international emissions monitoring regulations and its new and intuitive user interface individually displays and connects to other instruments’ data.


Precise and Reliable
The nCLD EL with metal converter fulfills the specific requirements for exact and economical monitoring of NO/NOX, in order to ensure compliance with relevant norms and regulations. All necessary data, such as calibration history, instrument status and warning conditions are continuously stored and available anywhere and at any time. The analyzer is designed for either mobile or stationary operation in line with an existing gas preconditioning unit, which ensures quality control as well as staying within threshold values. The calibration and adjustment of the unit runs quickly and automatically, ensuring unsurpassed precision and reliability.

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 EL.

Compact, Modular and Intelligent!
The nCLD EL 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 stationary source emissions (EN 15267).


Analyzer type single chamber CLD for measurement of NO or NOX
Measuring ranges four freely selectable ranges from 0.5 ppm -500 ppm
Min. detectable concentration* 0.05 ppm
Noise at zero point (1σ)* 0.025 ppm
Lag time <3 sec
Rise time (0-90%) <3 sec
Temperature range 5-40 °C
Humidity tolerance 5-95% rel. h (non-condensing, ambient air and sample gas)
Dry air use for O3 generator internally generated (no external supply gas required)
Sample flow rate 0.3 l/min
Input pressure ambient externally stabilized within ±3 mbar
Power required 300 VA, 250 VA external membrane pump
Supply voltage 100-240 V/50-60 Hz
Interface USB(3x), HDMI, Bluetooth, RS232 (w/o 9pin connector), LAN, WLAN
Dimensions height: 133 mm (5¼”)

width: 450 mm (19”)

depth: 540 mm (21.2”)

Weight 16 kg (35 lb) without pump
Delivery includes nCLD EL analyzer, power cable, USB-LAN adapter
Standard nCLD EL: NO/NOX analyzer with internal metal converter
Options · steel converter

· toggle mode for NO2 measurement

· inlet filter

· rack mount slides

· HDMI cable

· FTDI-RS232-USB cable

· USB-RS232 9pin connector

· 24 V operation incl. DC vacuum pump

· analog output (external box): 0-10 V ; 4-20 mA into 500 Ω max.

*Depending on filter setting.
Connectivity properties are country-specific.
ECO PHYSICS reserves the right to change these specifications without notice.


Further information can be found in the Product Brochure

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