nCLD 88 Yp

Modular Trace-Level Gas Analyzer


  • Ambient air monitoring
  • Clean room monitoring
  • Analysis of chem. processes
  • Surveillance of R&D processes
  • and phrama research
  • Plant physiological research
  • Certification and calibration


  • Compact design without additional space required
  • Pre chamber to offset cross sensitivity
  • Four freely selectable measuring ranges
  • Rapid system integration


5 ppb – 5’000 ppb

Minimum Detectable Concentration

0.05 ppb


NO / NOx


Modular Trace-Level Gas Analyzer

The nCLD 88 Yp is the next generation in measuring smallest amounts of NO or NOX. Unique in speed and precision, the nCLD 88 Yp is modular designed and allows the sequential measurement of concentrations even in the range of parts per trillion and is expandable to assess additional nitrogen oxide based parameters. Its new and intuitive user interface also individually displays and connects to other instruments’ data.

Precise and Reliable
The nCLD 88 Yp fulfills the requirements of many research groups specializing in detection and monitoring smallest variations of N-containing compounds, such as 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 allow for even lower detection limits. Overall stability and reliability are lifted to a new level. The pre chamber of the nCLD 88 Yp also minimizes zero drift and cross sensitivity. This makes it ideally suited for areas with excellent air quality. The Calibration and the adjustment of the unit runs quick and automatic, 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. All necessary data is continuously and available. 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 and maintenance of the nCLD 88 Yp.

Compact, Modular and Intelligent!
The nCLD 88 Yp 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).

Analyzer type

single chamber CLD with cooled PMT for measurement of NO or NOX

Measuring ranges

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

Min. detectable concentration*

0.05 ppb

Noise at zero point (1σ)*

<0.025 ppb

Lag time

<3 sec (without pre-chamber)

Rise time (0-90%)

<1 sec (without pre-chamber)

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

400 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 88 Yp analyzer, power cable, USB-LAN adapter


nCLD 88 Yp: NO, NO2, NOX analyzer

· Y – molybdenum converter

· p – pre-chamber


· 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


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