CEMS with Hot Wet Method

A. Measurement Principle: UV differential absorption (DOAS) for NO, NO₂and SO₂

• Zero Drift: ≤±2% F.S.
• Span Drift: ≤±2% F.S.
• Indication Error: ≤±2% F.S.
• Detection Limit: ≤0.5% F.S.
• Response Time (T90): ≤75s

B. Particulate Matter Monitor (SDUST-110)

• Measurement Range: (0～10)mg/m³, configurable
• Zero Drift: ±2% F.S./24h
• Span Drift: ±2% F.S./24h

C. Temperature, Pressure and Flow Monitor (SVPT-100)

• Temperature Measurement Range: 0～500℃
• Accuracy: ≤±3℃
• Pressure Measurement Range: ±10kPa
• Flow Rate Measurement Range: (2～40)m/s
• Accuracy: Relative error ≤±10% when flow rate ＞10m/s; relative error ≤±12% when flow rate ≤10m/s

D. Humidity and Oxygen Monitor (Model SSD-100)

• Measurement Range: Humidity (0～40)vol%; Oxygen Content (0～25)vol%
• Accuracy: Absolute error ≤±1.5% when humidity ≤5%; Relative error ≤±25% when humidity ＞5%
• Standardized and modular design for simple and reliable composition.
• Based on UV differential absorption spectroscopy (DOAS) technology, the innovative multi-parameter joint estimation and interference cancellation algorithm achieves extremely low zero drift and span drift over a wide temperature range, with the minimum detection limit of SO₂ and NO as low as 0.05mg/m³.
• The particulate matter monitor supports full optical path calibration.
• Adopting PLC control with a high level of automation, the liquid crystal screen displays the system flow path and collects detailed status information of the system, which can serve as the most favorable resource for data validity verification.
• A high-temperature sampling pump is adopted for positive-pressure sampling instead of an ejector pump, fundamentally avoiding negative-pressure air leakage and ensuring sample authenticity.
• It supports multiple oxygen measurement methods such as the condensation method (equipped with an electrochemical sensor), and directly measures and outputs the oxygen value under standard dry conditions.
• Based on the modular mounting plate design, the measurable components can be expanded by replacement or additional configuration.
• The high-power heating high-temperature chamber combined with an air bath system (including a shrouded flow fan and flow guide structure) ensures constant and balanced temperature inside the chamber and prevents sample condensation.

1. Standardized and modular design for simple and reliable composition.
2. Based on UV differential absorption spectroscopy (DOAS) technology, the innovative multi-parameter joint estimation and interference cancellation algorithm achieves extremely low zero drift and span drift over a wide temperature range, with the minimum detection limit of SO₂ and NO as low as 0.05mg/m³.
3. The particulate matter monitor supports full optical path calibration.
4. Adopting PLC control with a high level of automation, the liquid crystal screen displays the system flow path and collects detailed status information of the system, which can serve as the most favorable resource for data validity verification.
5. A high-temperature sampling pump is adopted for positive-pressure sampling instead of an ejector pump, fundamentally avoiding negative-pressure air leakage and ensuring sample authenticity.
6. It supports multiple oxygen measurement methods such as the condensation method (equipped with an electrochemical sensor), and directly measures and outputs the oxygen value under standard dry conditions.
7. Based on the modular mounting plate design, the measurable components can be expanded by replacement or additional configuration.
8. The high-power heating high-temperature chamber combined with an air bath system (including a shrouded flow fan and flow guide structure) ensures constant and balanced temperature inside the chamber and prevents sample condensation.