Carbon Monoxide(CO) Analyzer

Carbon Monoxide(CO) Analyzer

Carbon Monoxide(CO) Analyzer

Introduction

The ESEGAS IR-GAS-600 Carbon Monoxide (CO) Analyzer is designed for continuous measurement of CO concentrations in industrial combustion gases, syngas, and process gas streams. Based on Non-Dispersive Infrared (NDIR) technology, it detects carbon monoxide through its characteristic infrared absorption and converts the measured signal into real-time concentration data. The analyzer can also integrate additional measurement channels for CO₂, CH₄, H₂, O₂, and other gas components according to application requirements. With customizable measurement ranges, RS485 communication, and 4–20 mA outputs, it supports combustion optimization, gasification monitoring, and industrial process control.

Technology: NDIR | TDLAS.

Configurations: Online | Portable .

Applications: Combustion optimization, gasification, process gas monitoring and industrial gas composition analysis.

Measuring Principle

  • Non-Dispersive Infrared (NDIR) Measurement The CO analyzer uses NDIR technology to continuously measure carbon monoxide concentration in industrial process gases. CO molecules absorb infrared radiation at characteristic wavelengths. Inside the analyzer, an infrared light source directs radiation through a gas measurement cell. As the sample gas passes through the cell, CO molecules absorb part of the infrared energy. The detector measures the transmitted light intensity, and the analyzer calculates the CO concentration based on the measured absorption and its calibration.
  • Tunable Diode Laser Absorption Spectroscopy (TDLAS) For applications requiring selective CO measurement, the CO analyzer uses TDLAS technology. A tunable diode laser emits light at a wavelength corresponding to a characteristic CO absorption line. As the laser passes through the sample gas, CO molecules absorb part of the light. The analyzer processes the absorption signal to determine the CO concentration. The narrow spectral characteristics of laser absorption enable selective measurement of the target gas, making TDLAS suitable for applications requiring enhanced sensitivity, fast response and continuous industrial monitoring.
The appropriate technology depends on the CO concentration range, background gas composition, installation conditions and required measurement performance.

Technical Specification

NDIR DETECTOR
GAS Lowest Range Highest Range LR resolution HR resolution Accuracy FS
CO 0-5% 0-100% 0.001% 0.01% ≤±2%
Note: Measurement range can be customized by the requirement. 
Response Time (TD+T90) <15s (NDIR)
Warm-up time 15min
I/O port RS485 & 4-20mA
Working temperature 0~50℃
Relative humidity 5-85%RH
Ambient air pressure 86~108kPa
Power supply AC 220±10%V 50Hz±1Hz
Weight About 15kg
 

Key Features

  • Dual Measurement Technologies — NDIR & TDLAS

Two types of CO analyzers: NDIR-based and TDLAS-based, allowing users to select a suitable technology according to concentration range, sensitivity and process conditions.

  • Configurable CO Measurement RangesSupports CO measurement solutions from ppm to percentage concentrations across the ESEGAS product range. It offers selectable CO ranges from 0–5% to 0–100%, with accuracy of ≤±2% of full scale for its NDIR CO channel.
  • Industrial Communication & System IntegrationThe CO analyzer provides RS485 and 4–20 mA interfaces for connection to industrial monitoring and control equipment. Its 19-inch, 3U rack-mount design supports integration into analyzer cabinets and process monitoring systems.
  • Customizable CO Analysis SolutionsMeasurement ranges, gas components and system configurations can be evaluated according to customer requirements. ESEGAS also provides technical support for analyzer selection, sampling arrangements and industrial system integration.

Importance of Carbon Monoxide (CO) analyzer

Health and Safety  : Carbon monoxide (CO) is a highly toxic gas that is odorless, colorless, and tasteless. It is produced by incomplete combustion of fossil fuels, such as gas, oil, coal, or wood. Breathing in high levels of CO can lead to carbon monoxide poisoning, which can cause serious health effects and even be fatal. A CO gas analyzer helps in monitoring and detecting the presence of CO in the environment, allowing for early warning and prevention of potential health hazards.

Indoor Air Quality  : CO can accumulate in enclosed spaces, such as homes, offices, and industrial facilities, where combustion appliances or heating systems are present. Monitoring the CO levels indoors is crucial to ensure a safe and healthy environment for occupants. A CO gas The analyzer provides continuous monitoring and alerts when CO concentrations exceed safe levels, enabling prompt action to prevent exposure and improve indoor air quality.

Combustion Process Optimization : In industrial settings, CO gas analysis is vital for optimizing combustion processes. Monitoring the CO levels in combustion flue gases allows for adjustments in fuel-to-air ratios, combustion efficiency, and emissions control. By maintaining optimal CO levels, energy efficiency can be improved, fuel consumption can be optimized, and harmful emissions can be minimized.

Industrial Safety: CO is a potential hazard in various industries, including chemical plants, refineries, steel mills, and manufacturing facilities. Monitoring CO levels in these environments helps ensure the safety of workers and prevents occupational exposure to toxic concentrations. real-time monitoring and triggering alarms or shutdowns in manufacturing facilities. Monitoring CO levels in these environments helps ensure the safety of workers and prevents occupational exposure to toxic concentrations.

Compliance and Regulation : Many industries are subject to regulations and safety standards regarding CO emissions and exposure limits. A CO gas analyzer assists in meeting these regulatory requirements by providing accurate and reliable measurements of CO concentrations. Compliance with regulations not only ensures the well-being of workers and the public but also helps avoid legal and financial penalties.

Emergency Response : CO incidents, such as leaks from faulty appliances or accidents, can occur unexpectedly. Rapid response and detection of CO are crucial in emergency situations to prevent further exposure, evacuate affected areas, and provide timely medical assistance. CO gas analyzers are essential tools for emergency responders, enabling them to assess the situation and take appropriate actions promptly.

Overall, a CO gas analyzer is highly important for safeguarding human health, ensuring workplace safety, optimizing combustion processes, and complying with regulations. It provides continuous monitoring, early warning, and accurate measurement of CO levels, helping to prevent CO-related accidents, injuries, and fatalities.

A carbon monoxide analyzer measures CO concentrations in industrial emissions, combustion systems, and process gas streams. It supports combustion optimization, emission monitoring, and industrial process control.

An NDIR CO analyzer measures the characteristic infrared absorption of carbon monoxide. The instrument analyzes the difference between incident and transmitted infrared energy to calculate CO concentration.

CO is an indicator of incomplete combustion. Monitoring its concentration helps operators evaluate combustion efficiency, identify abnormal operating conditions, and optimize air-to-fuel ratios.

Yes, provided the analyzer is configured with suitable measurement and interference compensation methods. Background gas composition should be considered during instrument selection and calibration.

A CO analyzer measures carbon monoxide, while a CO₂ analyzer measures carbon dioxide. They monitor different combustion and process conditions and use different characteristic absorption wavelengths.

Common applications include power generation, steel production, cement manufacturing, petrochemical processing, waste incineration, and industrial furnace atmosphere monitoring.

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Measuring Principle

  • Non-Dispersive Infrared (NDIR) Measurement
    The CO analyzer uses NDIR technology to continuously measure carbon monoxide concentration in industrial process gases. CO molecules absorb infrared radiation at characteristic wavelengths. Inside the analyzer, an infrared light source directs radiation through a gas measurement cell. As the sample gas passes through the cell, CO molecules absorb part of the infrared energy. The detector measures the transmitted light intensity, and the analyzer calculates the CO concentration based on the measured absorption and its calibration.
  • Tunable Diode Laser Absorption Spectroscopy (TDLAS)
    For applications requiring selective CO measurement, the CO analyzer uses TDLAS technology. A tunable diode laser emits light at a wavelength corresponding to a characteristic CO absorption line. As the laser passes through the sample gas, CO molecules absorb part of the light. The analyzer processes the absorption signal to determine the CO concentration. The narrow spectral characteristics of laser absorption enable selective measurement of the target gas, making TDLAS suitable for applications requiring enhanced sensitivity, fast response and continuous industrial monitoring.

The appropriate technology depends on the CO concentration range, background gas composition, installation conditions and required measurement performance.

Technical Specification

NDIR DETECTOR
GAS Lowest Range Highest Range LR resolution HR resolution Accuracy FS
CO 0-5% 0-100% 0.001% 0.01% ≤±2%
Note: Measurement range can be customized by the requirement. 
Response Time (TD+T90) <15s (NDIR)
Warm-up time 15min
I/O port RS485 & 4-20mA
Working temperature 0~50℃
Relative humidity 5-85%RH
Ambient air pressure 86~108kPa
Power supply AC 220±10%V 50Hz±1Hz
Weight About 15kg

 

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