TRACE-GAS OEM-Technology
NOx Analysis in compliance with standards & norms: Compact CLD OEM Sensors for System Integrators
When regulations require the chemiluminescence method (CLD), TRACE-GAS provides high-precision OEM sensors for seamless integration into your measurement and analysis systems.
CLD technology in the analysis field
Why Chemiluminescence is essential for nitrogen oxide measurement
In many industrial and municipal applications, regulations mandate the chemiluminescence method. For manufacturers of gas analyzers and continuous emissions monitoring systems (CEMS), this means integrating the sophisticated physical principle of CLD into their own instrument design in a compact, stable, and cost-efficient way.
With TRACE-GAS compact CLD OEM sensors, such as the CLDmini, you get an installation-ready plug-and-play solution developed specifically to meet these demanding integration requirements.
Your Benefits at a Glance
Low cost
Significantly more affordable than conventional complete analyzers.
Ultra compact design
Takes up minimal space in a 19-inch rack or enclosure.
Outstanding long-term stability
A reaction-stabilized measurement chamber guarantees drift-free results over long periods.
Simple plug-and-play installation
Flexible interfaces for smooth integration into existing instrument designs.
optional: High-end detector
CLD mini PRO for extremely low noise and detection limits in the single-digit ppb range.
optional: Integrated NOx converter
Directly controllable for separate or summed measurement of NO and NO2.
optional: Ozone destroyer
To ensure safety of the operator during measurement.
Reach out for a consultation on your project for the integration of a CLD OEM sensor:
Typical Applications & Regulatory Requirements
| Area | Application | Standards / Guidelines |
|---|---|---|
| Continuous Emissions Monitoring (CEMS) | Continuous monitoring of large combustion plants | DIN EN 15267, DIN EN 14792, IMO NOx Technical Code 2008 |
| Environmental & air-quality monitoring | Ambient air quality monitoring | DIN EN 14211 |
| Laboratory & environmental analysis | Determination of total bound nitrogen | TNb analysis |
| Automotive & engine test benches | Exhaust gas measurement for combustion engines | Euro 6 / VI & future standards |
| Medical gases | NOx monitoring in medical gases | Ph. Eur., monograph “Oxygen (93 per cent)” |
CLD OEM Sensor configuration

CLDmini BASIC
In the BASIC configuration, the sensor module contains the reaction chamber, a drying hose, the ozone generation and the associated evaluation electronics. The temperature-stabilized reaction chamber allows reproducible measurements at low concentrations.

CLDmini PRO
In the PRO configuration, the sensor has the same basic design as the CLDmini BASIC. In addition to the temperature stabilized reaction chamber, it contains a cooling system for the PMT. This allows a better signal-to-noise ratio and thus a significantly lower detection limit to be achieved.
Looking for the optimal CLD OEM sensor for your application?
Our engineers support you from the initial feasibility study and interface customization through to production readiness of your analysis system. Benefit from our many years of OEM expertise in gas analysis.
- Phone: +49 (0) 83 72 - 70 80
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