Ensuring Optimal Inert Atmospheres in Additive Manufacturing with OxyPro-XT

The Importance of Oxygen Control in Additive Manufacturing 

Maintaining a stable inert atmosphere is essential in metal additive manufacturing, especially when working with reactive metal powders. Effective oxygen monitoring helps prevent oxidation and supports the consistent production of high-quality printed components. Even oxygen concentrations measured in parts per million can affect mechanical properties, lower production yield, and increase manufacturing costs. 

How Oxygen Contamination Affects the Process 

• Material degradation: Oxidation of materials such as titanium and stainless steel can contribute to porosity, brittleness, and an inconsistent surface finish. 

• Reduced yield: Components that fail to meet the required quality standards may need to be printed again, increasing powder consumption and machine time. 

• Process disruption: Variations in oxygen concentration can cause build interruptions or additional machine cleaning cycles, reducing overall production efficiency. 

Accurate Oxygen Monitoring with OxyPro-XT 

The OxyPro-XT SMART Oxygen Transmitter provides dependable, plug-and-play oxygen monitoring for the high-purity gas environments used in metal additive manufacturing. 

Its zirconia diffusion-limiting SMART sensors deliver accurate, long-life oxygen measurement with minimal maintenance, helping manufacturers maintain controlled conditions throughout the process. 

• Oxygen detection down to 10 ppm O₂ 

• Pre-calibrated SMART sensors with no calibration required 

• Plug-and-play sensor replacement to minimise downtime 

• Fast response for continuous process monitoring 

Key OxyPro-XT Features 

• Selectable measurement ranges from 10 ppm to 96% O₂, depending on the installed sensor. 

• Pre-calibrated SMART sensors provide precise measurements without routine calibration. 

• Analog outputs of 0–5 V and 4–20 mA, together with RS485 Modbus RTU, support straightforward integration with process control systems. 

• Programmable O₂ alarms and relays support process control and safety requirements. 

Performance Specifications 

• Response time of less than 5 seconds, depending on the selected sensor housing. 

• Sensor operating life of up to 5 years, depending on the application. 

• IP66-rated sensor plug and IP40 transmitter housing. 

• Operating temperature of +10 to +100 °C for the sensor head and +10 to +50 °C for the monitor. 

• CE compliance with the EU Machinery Directive and EN 61010-1. 

Sensor Housing Options 

• D0, M16 steel 

• D2, M16 aluminium 

• D3, M18 aluminium 

• B1, TO8 flange 

Multiple housing configurations allow the oxygen transmitter to be integrated directly into additive manufacturing build chambers and metal powder handling systems. 

Benefits Across the OxyPro-XT Range 

• Low detection limits down to 10 ppm oxygen for monitoring high-purity gases and inert atmospheres. 

• Plug-and-play SMART sensors help reduce maintenance requirements, service costs, and process downtime. 

• DIN rail mounting, extension cables, and multiple output options provide flexible installation. 

• Robust construction supports use in cleanrooms and controlled manufacturing environments. 

Applications and Industries 

OxyPro-XT supports accurate oxygen measurement across a range of advanced manufacturing and controlled-atmosphere applications: 

• Metal additive manufacturing: Maintaining inert gas purity during metal powder handling and metal 3D printing. 

• Specialty gas processing: Verifying the purity of nitrogen, argon, and forming gases. 

• Research and development: Supporting prototyping and advanced materials research under controlled atmospheric conditions. 

Supporting Process Integrity and Product Quality 

Accurate oxygen monitoring is essential wherever trace contamination can affect production yield, material performance, or safety. The OxyPro-XT SMART Oxygen Transmitter provides continuous and cost-effective oxygen measurement, helping manufacturers maintain stable process conditions, reduce scrap, and protect high-value operations. 

With OxyPro-XT, manufacturers can protect metal powder integrity, reduce material waste, and maintain a stable and reliable additive manufacturing process. 

Contact our experts to request a demonstration or discuss your application.