NIRS XDS Process Analyzer – SingleFiber

Importance of the Topic

Inline, reagent-free monitoring of industrial processes using near-infrared spectroscopy (NIRS) has become a cornerstone of modern quality control and Process Analytical Technology (PAT). By delivering real-time analytical data directly in the process stream, NIRS analyzers enable rapid corrective actions, minimize waste and downtime, and support regulatory compliance in industries ranging from chemicals and pharmaceuticals to food and petrochemicals.

Objectives and Overview

This article examines the NIRS XDS Process Analyzer – SingleFiber, a next-generation inline NIR instrument. Key goals include:

• Presenting the analyzer’s core design and capabilities for real-time process analysis.
• Reviewing the single-fiber interface and optional multiplexer for up to nine measurement points.
• Assessing its industrial robustness, software integration and compliance features.

Methodology and Used Instrumentation

The XDS Process Analyzer – SingleFiber employs diffuse reflectance, transmission and transflectance NIR techniques over the 800–2200 nm range. Core components and options include:

• XDS monochromator with digital encoder and internal reference for precise grating positioning and seamless calibration transfer.
• Extended InGaAs detector for broad spectral coverage.
• Single 600 µm low-OH fiber optic cable (up to 100 m) connected via SMA fittings to reflectance, immersion or flow-through probes.
• Optional multiplexer supporting 1–9 sampling points for sequential measurements.
• Vision software (single-user or multi-user, 21 CFR Part 11 compliant) for spectral acquisition, chemometric method development and routine analysis.
• Environmental and Ex-proof packages, including NEMA 4X/IP65, cooling options and ATEX certification.

Main Results and Discussion

When deployed inline, the analyzer acquires spectra at up to 2 scans per second, detecting process deviations in seconds. The fiber-optic interface allows remote installation up to 100 m from harsh environments, reducing installation costs and simplifying maintenance. The multiplexer configuration extends analytics across multiple points without extra analyzers. Software integration ensures centralized data management and compliance with industry standards.

Benefits and Practical Applications

• Real-time, non-destructive analysis in production and QC streams.
• No reagents or sampling preparation required.
• Flexible single-point or multi-point monitoring to capture process variability.
• Robust design for extreme conditions (IP65, ATEX zones).
• Reduced operational costs through remote fiber deployment and centralized software.

Future Trends and Applications

Advances in chemometric algorithms, Industry 4.0 connectivity and cloud-based analytics will enhance predictive process control. Integration with complementary sensors (e.g., Raman, MIR) and machine learning will expand multivariate monitoring capabilities and drive further optimization in continuous manufacturing environments.

Conclusion

The NIRS XDS Process Analyzer – SingleFiber delivers a versatile, robust solution for inline NIR process monitoring. Its modular fiber-optic interface, rapid acquisition rate and comprehensive software platform support real-time quality assurance and PAT initiatives across diverse industries.

References

No explicit literature references provided.