H2S Analyzers

Accurate Hydrogen Sulfide Measurement for Safety and Compliance

Hydrogen sulfide (H2S) is a highly toxic and corrosive gas commonly found in upstream, midstream, and processing environments. Accurate H2S measurement is critical for operator safety, regulatory compliance, and process optimization. Circle B Measurement & Fabrication provides high-performance H2S analyzers designed to deliver reliable, real-time monitoring in demanding industrial applications.

H2S analyzers detect and quantify hydrogen sulfide concentrations, enabling operators to manage gas quality, ensure pipeline integrity, and meet environmental and occupational safety standards. By integrating advanced analyzers with engineered sampling systems and skids, Circle B ensures precise, defensible measurement for operational and regulatory requirements.

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Our experts are ready to meet your needs and help with next steps.

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Why Choose Circle B for H2S Analyzers

Operators rely on Circle B’s H2S analyzer solutions because we provide:

Comprehensive Product Options: AMI 3010BX and Envent 330S analyzers for varying sensitivity and operational needs.
Compliance with Industry Standards: Installations meet API, GPA, and BLM guidelines for hydrogen sulfide measurement.
Turnkey Integration: Analyzers can be mounted on skids, piped into measurement systems, or integrated with continuous sampling networks.
Full Lifecycle Support: Calibration, verification, maintenance, and troubleshooting by experienced field service teams.

These capabilities ensure H2S measurement is both accurate and actionable, supporting safety, compliance, and operational efficiency.

H2S Analyzer Product Offerings

AMI – 3010BX

The AMI 3010BX H2S analyzer provides continuous, high-accuracy monitoring for natural gas and hydrocarbon streams. Key features include:

Electrochemical sensor technology for precise detection of H2S
Real-time monitoring with rapid response times for safety-critical applications
Rugged construction suitable for harsh field environments
Compliance with API MPMS, GPA, and ISO standards

The AMI 3010BX is ideal for upstream production facilities, gas lift operations, and midstream pipelines where accurate hydrogen sulfide measurement is essential.

Envent – 330S

The Envent 330S H2S analyzer offers robust performance for continuous monitoring of corrosive gases:

High-sensitivity detection for low-level hydrogen sulfide concentrations
Integrated diagnostics for predictive maintenance and fault detection
Designed for installation in pipelines, skid-mounted systems, and process enclosures
Meets API, GPA, and BLM standards for gas analysis and reporting

The 330S is particularly effective in environments requiring continuous H2S detection to protect personnel, equipment, and infrastructure.

Integration with Skids and Sampling Systems

Circle B integrates H2S analyzers into fully engineered measurement systems:

Skid Fabrication: Analyzers can be mounted on custom skids with properly designed piping, supports, and sampling points for accurate and representative measurement.
Continuous and Spot Sampling: Sampling systems are tailored to ensure reliable gas delivery to the analyzer, maintaining measurement accuracy.
Data Integration: H2S analyzers interface with flow computers, SCADA systems, and MVS platforms for real-time monitoring, logging, and alarm management.

By combining analyzers with engineered skids and sampling systems, Circle B delivers turnkey solutions that reduce installation complexity and ensure reliable long-term measurement.

Compliance and Industry Standards

Circle B ensures H2S analyzers are installed and maintained in compliance with recognized industry standards, including:

API MPMS: Measurement standards for gas composition and flow
GPA 2261 / 2186: Gas analysis methods, including hydrogen sulfide detection
BLM Standard Operating Procedures: H2S monitoring and safety protocols
ASTM-Certified Materials: Sensors, sample lines, and installation hardware are made from certified materials to ensure longevity and safety
ASME Codes: B31.3/B31.8 compliance for skid and piping integration

Adherence to these standards ensures measurement data is accurate, defensible, and compliant with regulatory and operational requirements.

Field Services and Lifecycle Support

Circle B provides full lifecycle support for H2S analyzers to maintain performance and regulatory compliance:

Calibration & Verification: Regular calibration to ensure measurement accuracy in accordance with API and GPA standards
Maintenance & Troubleshooting: Field inspection, sensor replacement, and analyzer diagnostics to minimize downtime
Integration Support: Flow computer, SCADA, and MVS interfacing for real-time monitoring and data logging
Sampling System Support: Maintenance of continuous and spot sampling systems for consistent H2S measurement

These services ensure H2S analyzers remain reliable, accurate, and compliant throughout their operational life.

Applications Across the Energy Industry

H2S analyzers are essential in a variety of operational contexts:

Upstream Production: Monitoring hydrogen sulfide in wellhead, gas lift, and production lines to prevent corrosion and ensure operator safety
Midstream Transmission: Continuous H2S monitoring in pipelines and metering stations for gas quality and safety compliance
Processing Facilities: Detection and control of hydrogen sulfide in dehydration, compression, and gas treatment systems
Environmental & Safety Compliance: Continuous monitoring to meet OSHA, EPA, and BLM requirements, protecting personnel and infrastructure

Circle B tailors H2S analyzer installations to operational and environmental conditions to ensure accurate, reliable, and actionable measurement.

Why Choose Circle B Measurement & Fabrication

Circle B’s expertise in H2S analyzers combines technical knowledge, system integration, and field service excellence:

Expert guidance on analyzer selection and sizing
Turnkey integration with skids, sampling systems, and control platforms
Compliance with API, GPA, BLM, and ASME standards
Comprehensive lifecycle support including calibration, maintenance, and troubleshooting

Operators can rely on Circle B to deliver high-accuracy, fully compliant H2S measurement solutions that support operational safety, efficiency, and regulatory adherence.

Partner with Circle B for H2S Analyzer Solutions

From the AMI 3010BX to the Envent 330S, Circle B provides turnkey H2S monitoring solutions for the oil and gas industry.
Contact Circle B today to discuss your H2S analyzer requirements or request a custom measurement solution.