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NDUV Analyzer

For measuring: Ozone (O₃), Sulfur Dioxide (SO₂), and Nitrogen Dioxide (NO₂)

NDUV Analyzer

The TRACE-GAS NDUV (Non-Dispersive Ultraviolet) gas analyzers deliver exceptional performance for precise gas detection. With advanced sensing technology and a robust design, they are perfectly suited for industrial applications, environmental monitoring, or test benches.

NDUV analyzers rely on the selective absorption of ultraviolet light by specific gases. This physical principle enables highly sensitive and selective gas detection—without moving optical components or the need for reference gases.
Typical target gases include Ozone (O₃), Sulfur Dioxide (SO₂), and Nitrogen Dioxide (NO₂)—all of which show strong absorption bands in the UV spectrum.

Examples of customer-specific projects using NDUV technology

Here you can have a look at our previously developed analyzer in the NDUV technology area. Please do not hesitate to contact us, even if your application is not listed. We develop individually based on your requirements!

High precision, even at low gas concentrations

Fast response times (T90 < 10 s) for dynamic processes

Compact and robust design for both stationary and mobile use

Integrated temperature and pressure compensation

Digital communication via CAN, optional EC sensor input

Modular and customizable – ideal for OEM integration or tailored applications

Non-Dispersive Ultraviolet Spectroscopy

Application fields

01

Emission montitoring

  • Environmental monitoring and air quality measurement

  • Exhaust and emission control

02

Research & Laboratories

  • Research institutions and universities

  • Studies on alternative fuels and gasoline engine emissions

03

Industry

  • Ozone detection in industrial processes

02

Others

  • Integration into mobile test benches

Technical Data

Technical DataNDUV O3
Ambient temperature10 – 40 °C (non-condensing)
Ambient pressure 700 – 1,200 mbar
Communication Modbus TCP/IP + optional 4–20 mA analog output
Dimensions (L x W x H)520 × 485 × 190 mm
Weight~5kg
Power supply 100 – 240 V AC / 50-60Hz
Display7″ LCD (Touchscreen)

Specifications

SpecificationsNDUV O3
Measuring range (FS) O₃ 10 – 3,000 ppm
Detection Limit (LOD)1 @t10-t90
≤ 10 s
≤ 0.5 % FS (2σ)
Digital resolution 1 ppm
Linearity≤ 1 % FS
Zero drift≤ 1 % FS over 8 h
Continuous zero calibration for O₃ No drift due to automatic zeroing
Span drift≤ 1 % FS over 8 h
Sample gas flow¹0.5 l/min
1 Other gases and measuring ranges available on request.

Need help?

Let us help you choose the perfect gas analyzer technology for your needs. We develop customized gas analyzers or OEM sensors according to your specifications. Simply talk to us about your desired application!