nCLD 82 S

Modular Gas Analyzer


  • Online quality control in production lines
  • Stack emission measurement
  • Burner and boiler operation
  • Waste incineration plants
  • Power generating turbines
  • Metal foundries


  • Rapid system integration and rack mounting
  • Compact and modular design
  • Virtually maintenance free even in continuous operation
  • Four freely selectable measuring ranges


5 ppm – 5’000 ppm

Minimum Detectable Concentration

0.12 ppm


NO / NOx


Modular Gas Analyzer

The nCLD 82 S analyzer is the next generation in single-channel high precision nitrogen oxide measurement. Unique in speed and reliability, the nCLD 82 M is modular designed and capable of measuring NO or NOX . The new and intuitive graphical user interface also individually displays and connects to other instruments’ data.

Convenient and Highly Precise
The nCLD 82 S includes everything for measurement of NO or 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 analyzer is adaptable to numerous non-standardized applications. The calibration of the unit runs quickly and automatically, with all necessary data 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 82 S.

Compact, Modular and Intelligent!
The nCLD 82 S 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 with cooled PMT for measurement of NO or NOX

Measuring ranges

four freely selectable ranges from 5 ppm – 5’000 ppm

Min. detectable concentration*

0.12 ppm

Noise at zero point (1σ)*

0.06 ppm

Lag time

<3 sec

Rise time (0-90%)

<1 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

1.0 l/min

Input pressure

600 – 1’200 mbar abs.

Power required

350 VA (incl. membrane pump and scrubber)

Supply voltage

100-240 V/50-60 Hz


USB(3x), HDMI, Bluetooth, RS232 (w/o 9pin connector), LAN, WLAN


height: 133 mm (5¼”)

width: 450 mm (19”)

with molding: 495mm

depth: 540 mm (21.2”)


23 kg (51 lb)

Delivery includes

nCLD 82 S analyzer, power cable, USB-LAN adapter


nCLD 82 S : NO/NOX analyzer with internal steel converter


· V1 – single calibration valve

· V2 – two calibration valves for pressurized calibration (zero & span / 2-3 bar)

· h – hot tubing

· r – electro-mechanical pressure regulation

· USB-RS232 9pin connector

· 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

Download Brochure


nCLD 6x Series

Cost-effective with a simplified setup

nCLD 8xx Series

Equipped with the latest graphical user interface and multiple connectors for data transmission

nCLD Supreme Series

Sophisticated analyser with automatic startup & measurement