Reliable NDIR Gas Analyzers for Accurate Emission Monitoring
Advanced Nondispersive Infrared analyzers engineered for real-time,multi-gas industrial emissions monitoring and environmental compliance.
Overview
Nondispersive Infrared (NDIR) gas analyzers are industry-standard instruments used for real-time, continuous measurement of gas concentrations in emission stacks and industrial processes. These analyzers utilize infrared light to detect and quantify gases based on their unique absorption characteristics, offering a highly selective, stable, and low-maintenance solution for monitoring pollutants like CO, CO₂, CH₄, and other hydrocarbons. With no moving parts in their optical measurement system, NDIR analyzers ensure long-term reliability and low drift in even the harshest environments.
NDIR technology plays a critical role in compliance, diagnostics, and combustion efficiency across sectors like energy, manufacturing, and environmental control. By incorporating NDIR into your monitoring system, you gain dependable data for smarter decisions, fewer operational disruptions, and regulatory peace of mind.
Emissions and Stack Instruments proudly serves North American B2B clients by integrating leading-edge NDIR technologies with tailored services and scalable platforms to meet diverse monitoring needs.
Core Components of NDIR Gas Analyzers
In addition to offering products and systems developed by our team and trusted partners for Nondispersive Infrared (NDIR) gas analyzers, we are proud to carry top-tier technologies from Global Advanced Operations Tek Inc. (GAO Tek Inc.) and Global Advanced Operations RFID Inc. (GAO RFID Inc.). These reliable, high-quality products and systems enhance our ability to deliver comprehensive technologies, integrations, and services you can trust. Where relevant, we have provided direct links to select products and systems from GAO Tek Inc. and GAO RFID Inc.
Hardware Components
- IR Light Source: Stable emitter tuned to relevant gas absorption bands.
- Gas Sample Cell: Designed for optimal path length and temperature control.
- IR Detectors: Thermopile or pyroelectric sensors for signal capture.
- Optical Filters: Narrow-bandpass filters to isolate gas-specific wavelengths.
- Pump/Sampling System: Maintains consistent flow rate and pressure.
- Onboard Display & Controls: Local user interface with status indicators and diagnostics.
- Enclosure: Rugged, corrosion-resistant housing for field or stack mounting.
Software & Cloud Services
- Calibration Management: Automated zero/span calibration features.
- Data Logging & Visualization: Real-time trends, charts, and historical data views.
- Alarms & Alerts: User-defined threshold alarms for emission breaches.
- Cloud Connectivity: Secure data sync to cloud dashboards for remote access and reporting.
- Regulatory Reporting Tools: Built-in compliance format generation (EPA, ECCC, etc.).
Key Features and Functionalities
- Real-time monitoring with high accuracy (typically ±1–2% of reading)
- Multi-gas detection (e.g., CO, CO₂, CH₄, R-134a, hydrocarbons)
- Auto calibration routines and diagnostics
- Low maintenance with no moving optical parts
- Integrated temperature and pressure compensation
- Long operational lifespan (often 5–10 years without sensor replacement)
- Digital and analog communication outputs (Modbus, 4–20mA, RS485)
- Field-configurable and compatible with CEMS installations
Integrations and Compatibility
Our chemiluminescence analyzers easily integrate into:
- Existing Continuous Emissions Monitoring Systems (CEMS)
- Industrial control systems (PLCs, SCADA)
- Environmental reporting platforms
- Wireless or Ethernet-based network protocols
- Multi-gas analyzers and sensor fusion platforms
Benefits
- Regulatory Compliance: Meet U.S. EPA and Canadian ECCC standards effortlessly.
- Operational Insight: Real-time visibility into combustion efficiency and equipment health.
- Cost Savings: Minimized maintenance and extended sensor life.
- Scalability: Modular configurations support small and large-scale facilities.
- Remote Access: Monitor and control analyzers from anywhere with cloud access.
- Data Integrity: High-resolution readings with built-in calibration drift compensation.
Applications
- Power plants and energy generation
- Cement and steel manufacturing
- Petrochemical and chemical plants
- Waste-to-energy facilities
- Automotive exhaust analysis
- HVAC system diagnostics
- Indoor air quality and safety testing
Industries Served
- Oil & Gas
- Utilities & Energy
- Environmental Engineering
- Pulp & Paper
- Food & Beverage
- Pharmaceuticals
- Government Regulatory Agencies
Relevant U.S. & Canadian Industry Standards
- U.S. EPA 40 CFR Part 60 and Part 75
- U.S. EPA Method 3A, 10, 25A
- ANSI/ISA 12.13.01
- CAN/CSA Z223
- Environment and Climate Change Canada (ECCC) CEMS Guidelines
Case Studies
U.S. Case Study – Gas-Fired Power Plant, Texas
A 500 MW natural gas power facility adopted NDIR analyzers to replace aging electrochemical sensors. With support from Emissions and Stack Monitoring Instruments, the client integrated NDIR into their CEMS and SCADA, reducing maintenance costs by 40% and improving emissions reporting accuracy for CO and CH₄. Regulatory audits passed without deviation.
U.S. Case Study – Refinery VOC Monitoring, Louisiana
A petrochemical plant faced increasing VOC emission concerns from flare stacks. Our team implemented FTIR and NDIR hybrid systems, enabling the plant to meet EPA Method 25A requirements and detect hydrocarbons with greater sensitivity. NDIR’s stability minimized false alarms and reduced the need for manual inspections.
Canadian Case Study – Municipal Waste Incineration Facility, Ontario
Working with a government contractor, we deployed NDIR analyzers for continuous CO and CO₂ tracking in a public waste-to-energy facility. Using GAO Tek-supported hardware, our team provided real-time reporting to ECCC’s online platform. The installation contributed to consistent emissions compliance and improved community trust.
Looking to Upgrade or Expand your Emissions Monitoring System with Reliable NDIR Technology?
Contact Emissions and Stack for personalized guidance, pricing, or technical specifications. Let our experts help you meet compliance, reduce costs, and gain control of your air emissions.Contact today to speak with our team. We’re here to help with tailored product recommendations, technical guidance, and full-service support.
