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
Emission montitoring
Environmental monitoring and air quality measurement
Exhaust and emission control
Research & Laboratories
Research institutions and universities
Studies on alternative fuels and gasoline engine emissions
Industry
Ozone detection in industrial processes
Others
Integration into mobile test benches
Technical Data
| Technical Data | NDUV O3 |
|---|---|
| Ambient temperature | 10 – 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 |
| Display | 7″ LCD (Touchscreen) |
Specifications
| Specifications | NDUV O3 |
|---|---|
| Measuring range (FS) O₃ 1 | 0 – 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 flow¹ | 0.5 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!
