Product Introduction

1. Core technology and measurement principle‌
‌1.1 NDIR (non-dispersive infrared) technology‌
-- Based on the absorption characteristics of gas molecules for infrared light of a specific wavelength, gas concentration measurement is achieved by detecting the degree of light intensity attenuation, supporting multi-component analysis such as CO, CO₂, NO, SO₂, CH₄, etc.‌

-- The infrared light source uses nickel-chromium wire, emitting a continuous spectrum, covering multiple gas absorption wavelengths (such as CO₂ absorption 4.26μm, CO absorption 4.65μm).
-- The pyroelectric detector or photodiode converts the absorbed light signal into an electrical signal, and the concentration value is calculated by the microprocessor‌.

‌1.2 Oxygen measurement unit‌
-- Optional electrochemical or paramagnetic oxygen sensor, supporting O₂ concentration monitoring (such as 0-25% range), suitable for combustion efficiency optimization and emission monitoring‌.

2. Functions and configuration‌
‌2.1 Multi-component detection capability‌

-- Up to ‌3 infrared sensitive gases (such as CO, CO₂, NO)‌ + ‌1 O₂‌ can be measured simultaneously to meet complex flue gas monitoring needs‌.

-- Optional sensors such as H₂S and NH₃ can be used to expand application scenarios (such as biogas monitoring).

‌2.2 Automation and stability‌

‌-- Self-calibration function‌: Built-in pump and solenoid valve realize automatic switching between sample gas and zero gas, and ensure data accuracy through cyclic calibration‌.

‌-- Anti-interference design‌: The three-stage filtration system (particulate matter collection device + Peltier cooler + peristaltic pump drainage) effectively copes with high dust and high humidity environments‌.

--‌ Low drift performance‌: Zero drift <2%/week, range drift <2%/week, to ensure long-term operation stability‌.

‌2.3 Convenience of operation and maintenance‌

--‌ Wireless handheld operator‌: supports remote operation within 50 meters to avoid direct contact in harsh environments‌.
‌-- Text menu interface‌: Large LCD display to simplify parameter settings and data queries‌.
‌-- Pretreatment solution‌: Automatically discharge condensed water to reduce the frequency of manual maintenance‌.

3. Technical parameters‌
‌3.1 Measuring range‌:
CO: 0-1000 ppm to 0-100% | CO₂: 0-1000 ppm to 0-100%
NO/SO₂: 0-5000 ppm (range can be customized).
‌Accuracy‌: ≤1% FS (linear error), resolution 0.01%‌.
‌Response time‌: T90 ≤10 seconds (oxygen) or <5 seconds (infrared component)‌.
‌Communication interface‌: RS 485, PROFIBUS, 4-20 mA analog output‌.
‌Power supply‌: AC 220V 50Hz, supports battery power supply (optional).

4. Typical application scenarios‌
‌4.1 Industrial emission monitoring‌: Real-time detection of SO₂ and NOx in flue gas of coal-fired power plants and steel plants to ensure compliant emissions‌.
‌4.2 Process control optimization‌: Combustion efficiency analysis in chemical and metallurgical industries, adjusting fuel ratio by O₂ and CO concentration‌.
‌4.3 New energy and environmental protection‌: Biogas engineering (CH₄, CO₂, H₂S monitoring), landfill gas composition analysis‌.

5. Precautions for use‌
‌5.1 Calibration requirements‌:
-- Self-calibration requires ensuring that the concentration of the component to be measured in the sample gas is negligible (such as CO₂ calibration requires the use of soda lime to absorb air)‌. -- Zero point, range and repeatability should be calibrated during acceptance and recorded in the XT recorder.

‌5.2 Maintenance recommendations:
-- Clean the optical chamber and filter regularly to prevent dust accumulation from affecting accuracy.
-- Avoid long-term exposure to corrosive gas environment to extend the life of the sensor.

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