In the field of electronic materials manufacturing, thermal oil boilers are critical equipment for maintaining production line temperatures and process continuity. For natural gas-fired boilers, the combustion process is not only a matter of energy efficiency and environmental compliance but also a core operation requiring precise data control. Flue gas components—such as oxygen, carbon monoxide, carbon dioxide, and nitrogen oxides—are interconnected; any anomaly in a single parameter can impair combustion efficiency, increase energy consumption, accelerate equipment corrosion, and even compromise product quality and production safety.

　　However, traditional flue gas detection methods suffer from significant drawbacks in practical application: equipment is bulky and difficult to transport, sampling from high-temperature flues is challenging, operational procedures are cumbersome and slow to respond, and data acquisition lags, preventing timely adjustments to combustion parameters. These issues hinder enterprises from achieving the goal of refined management driven by real-time production data. To address this challenge, Yiyuntian has launched a portable flue gas analyzer. Featuring a lightweight, portable design, simultaneous multi-parameter detection, high-temperature resistant sampling capabilities, and rapid, stable performance, this device provides electronic material plants with an efficient and reliable solution for monitoring natural gas combustion, thereby helping enterprises achieve precise process control and environmentally compliant operations.

　　1. Background

　　An electronic materials factory required flue gas analysis for its natural gas-fired thermal oil boiler. The process required monitoring the concentrations of O2, CO, CO2, NO, NO2, and NOx to effectively control the production process.

　　2. Solution

　　The client found standard portable units too bulky and inconvenient for on-site use. After consultation, we recommended a handheld, portable "6-in-1" gas analyzer paired with a high-temperature sampling probe. This setup allows for on-site sampling with temperature reduction and real-time data reading.

　　3. Product Specifications

　　Name: Portable Flue Gas Analyzer

　　Model: BTYQ-MS600

　　Detected Gases / Measurement Ranges:

　　1. Oxygen (O2): 0–25% Vol

　　2. Carbon Monoxide (CO): 0–500 mg/m³

　　3. Carbon Dioxide (CO2): 0–2000 mg/m³

　　4. Nitric Oxide (NO): 0–400 mg/m³

　　5. Nitrogen Dioxide (NO2): 0–200 mg/m³

　　6. Nitrogen Oxides (NOx): 0–600 mg/m³

　　Equipped with a 0.7-meter high-temperature sampling probe (rated for 800°C).

　　On-site Application Image:

　　With its lightweight, portable design and high performance, the Yiyuntian BTYQ-MS600 portable flue gas analyzer effectively resolves common on-site testing challenges. A single operator can easily carry the device to various sampling points; when used with the high-temperature probe, it enables rapid testing directly within the flue. It provides real-time, accurate readings of all six gas parameters, offering clear, actionable data for adjusting combustion conditions on-site.

　　The deployment of this equipment has not only helped the factory improve boiler combustion efficiency, reduce natural gas consumption, and stabilize emissions, but has also enabled more precise thermal oil temperature control, significantly enhancing the production quality of electronic materials. This solution successfully transforms cumbersome inspections into simple, efficient, high-frequency operations and converts the invisible combustion process into quantifiable, controllable data metrics; while meeting internal process control requirements, it also provides reliable support for environmental compliance and safety management, powerfully driving the factory’s transition toward precision, intelligence, and sustainability.