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- Zetian - Model DMS-300 - Dust Monitor ...
Zetian - Model DMS-300 -Dust Monitor (Extractive)
The DMS-300 Dust Monitor (extraction type) is an ultra-low high-temperature extraction dust analyzer developed by the company based on years of research in dust detection technology. It extracts dust from flue gas (chimney) at a constant velocity into a high-temperature heated dust measurement module for analysis. This instrument features a low detection limit, insensitivity to water vapor, and high measurement accuracy. It is particularly suitable for ultra-clean emissions and low-temperature, high-humidity flue gas environments after wet desulfurization processes.Detects dust concentration using the laser forward scattering method, with a low detection limit (0.05 mg/m³);
Features high-temperature heating throughout, eliminating the impact of water vapor on measurements;
Utilizes the parallel isokinetic sampling method with a Pitot tube, complying with the technical requirements for dust samplers (HJ/T 48-1999);
Equipped with an air curtain cleaning function to protect the lens in real time from contamination;
Includes automatic backflushing to clean the pipeline, preventing pollution and blockages;
Supports a dual-range automatic switching function;
Incorporates multiple stabilization technologies, including adaptive optical power stabilization technology, adaptive lock-in amplification technology, and temperature compensation technology, ensuring rapid, reliable, and accurate quantitative monitoring of dust emissions.
Dust emission monitoring and process control of flue gas desulfurization and dust removal projects for enterprises such as thermal power generation, steel metallurgy, cement production, ceramics manufacturing, and waste incineration, including various power boilers, industrial kilns, and industrial boilers.
- Principle
Laser forward scattering - Range
0~10~200mg/m3 (customizable) - Detection limit
0.05mg/m3 - Indication error
≤±20% - Laser
650nm, 20mW - Analog output
1*4-20mA output, max load 500Ω - Communication port
RS485 - HMI
OLED display - Ambient temperature
(-20~50)℃ - Heat tracing temperature
(100~200)℃, adjustable according to working conditions - Compressed air
Water-free, oil-free, ≥0.3MPa, max gas consumption 50L/min - Velocity range
(2~40)m/s - Preheating time
15min - Power supply
AC (220±22)V, (50±1)Hz - Power consumption
About 1500W - Dimensions & weight
653.5(W)*270.4(D)*1030(H)mm (excluding protruding parts), about 50kg