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Model 50 Series H2S Gas Analyzer

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By KECO

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The Model 50 Series H2S Gas Analyzer provides flexible hydrogen sulfide measurement across process, laboratory, and portable applications. Its ASTM tape-based detection ensures accurate and interference-free results.

Designed for reliability, it offers automatic self-zero, minimal calibration, and low maintenance operation. Its compact and lightweight design allows for easy integration into plant systems or use in the field.

This analyzer enables operators to maintain safety, improve process control, and ensure compliance with confidence.

Fantastic Features

ASTM-approved tape-based H2S detection.
No false positives with H2S-specific measurement.
Automatic self-zero with no drift.
Minimal calibration requirements.
Compact and lightweight design.
Available in process, lab, and portable configurations.

Amazing Applications

Natural gas pipelines and gas processing facilities.
Laboratory testing and QA/QC validation.
Field measurements in oilfield operations.
Biogas and landfill gas monitoring.
Environmental air quality measurements.
Chemical and refinery process monitoring.

H2S Analyzer for Process, Laboratory, and Portable Hydrogen Sulfide Measurement

The Model 50 Series is a versatile H2S analyzer designed for accurate, real-time hydrogen sulfide measurement across process, laboratory, and portable applications. For full product specifications, refer to the Model 50 Series H2S analyzer page. This system uses ASTM-approved tape-based detection to deliver interference-free results with no false positives, ensuring reliable performance from low ppb to high ppm ranges. It provides a dependable solution for safety, compliance, and product quality monitoring in demanding environments where accuracy is critical.

ASTM Tape-Based Detection for Reliable H2S Measurement

This H2S analyzer uses a ratiometric colorimetric tape method that is specific only to hydrogen sulfide, preventing cross-interference from other gas components. With automatic self-zero functionality and minimal calibration requirements, it eliminates drift and maintains consistent accuracy over time. This ensures reliable performance for both continuous monitoring and discrete measurement applications, even in challenging gas compositions.

Flexible Measurement Across Process, Lab, and Field Applications

The Model 50 Series supports multiple configurations to meet different operational needs. The process version enables continuous monitoring in pipelines and gas processing systems. The lab version provides high-precision bench-top analysis for QA/QC and validation. The portable version offers compact, battery-powered measurement for field testing and spot checks.

For applications requiring continuous fixed-point monitoring in process environments, the H2S Gas Analyzer (Model 100 & 200) provides a dedicated solution for permanent installation.

Complementary Measurement Across Phases

In systems where both gas and liquid phase H2S measurement is required, solutions such as the H2S Analyzer for Liquids (Model 205 PermaStream) can be used alongside the Model 50 Series to provide complete visibility across the process.

Low-Maintenance Design for Long-Term Reliability

Engineered for durability and ease of use, this H2S analyzer minimizes maintenance through long tape life, automatic operation, and robust construction. Its compact design allows easy deployment in industrial, laboratory, and field environments.

With thousands of installations worldwide, the Model 50 Series delivers dependable performance while reducing downtime, lowering operating costs, and improving confidence in hydrogen sulfide measurement across critical applications.


Explore more solutions from the KECO product line to support hydrogen sulfide monitoring, process control, and environmental compliance.

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