10 Sets of DB450N High-Temperature In-Situ Flue Gas Humidity Analyzers Won the Bid for a Industrial Park’s Flue Gas Monitoring Project

High Temperature Humidity Transmitter

Background
An industrial park needed 10 sets of flue gas humidity analyzers for its 10 boilers (150–200℃ flue gas, high dust, trace pollutants) to build a CEMS, complying with environmental policies. Key demands: high-temperature resistance, anti-pollution, accurate real-time monitoring (≤2% FS error, <30s response), and low O&M costs. 5 manufacturers competed.
Core Challenges
Extreme conditions: 180℃ flue gas, dust, sulfides (traditional extractive analyzers suffer clogging, drift, frequent maintenance).
Precision/real-time: Strict accuracy and response time requirements for compliance.
O&M cost: Existing equipment cost over ¥100,000/year in consumables; customer needed reduction.
DB450N’s Competitive Advantages (vs. Competitors)
Design: In-situ direct insertion (no preprocessing) avoids clogging; capacitive principle resists dust (competitors: extractive design, complex preprocessing, data distortion).
Parameters: 0~40% VOL range, <±1.5% FS accuracy, <15s T90 response (meets HJ 76-2017; competitors: ±2.5% FS accuracy, >30s response).
Durability: 316L probe, IP65 housing, 200℃ resistance, 50~150℃ heat tracing (competitors: 304 probe, corrosion-prone, no heat tracing).
Cost: No consumables, ¥<2,000/year maintenance (competitors: ¥>80,000/year for filters/pumps).
Compatibility: DN65 flange, 4-20mA/RS485 output (seamless CEMS integration; competitors: proprietary protocols, extra conversion modules).
Application Effects
Stable, accurate monitoring for combustion optimization and emission control.
Excellent adaptability to high-temperature, high-dust, polluted environments.
Easy integration with existing CEMS for real-time centralized monitoring.
Dramatically reduced O&M costs via long service life and in-situ design.
Customer Feedback
“The DB450N solved our preprocessing clogging issue, with superior data stability. Annual maintenance savings equal 30% of equipment procurement cost—truly cost-effective.” — Environmental Protection Department Head
This bid win validates DB450N’s technical strength in harsh conditions and cost competitiveness, offering a replicable solution for industrial flue gas monitoring.