ATEX Dust Concentration Sensor

The GE-371 Series Dust Concentration Sensor, also known as a duct dust detector or ventilation duct dust concentration detector, employs cutting-edge electrostatic induction technology. It holds SIL2, SIL3 safety certifications, and ATEX explosion-proof certification. Measurement ranges are customizable based on user requirements.

The objection of the declaration is in conformity with the relevant EU harmonization legislation: ATEX directive 2014/34/EU, Machinery directive 2006/42/EC. The ATEX grade is Ex db IIC T6 Gb (-20℃≤Ta+80℃), Ex tb IIIC T85℃ Db (-20℃≤Ta+80℃) IP65; or Ex II  3GD Ex dc IIC T6 Gc (-20℃≤Ta≤+80℃) and Ex tc IIIC T85℃ Dc (-20℃≤Ta≤+80℃)  IP65 for gas and dust explosion prevention。

Type：
GE-371-EX (A Type): For measuring dust concentration in ducts.
GE-371-EX (B Type): For measuring dust concentration in indoor/room air.
ATEX explosion-proof products: Ex db IIC T6 Gb; Ex tb IIIC T85℃ Db.
SIL Safety Products: For SIL2 or SIL3 requirements, please specify when ordering.



Features：
CE certified, ensuring reliable quality.
Flexible measurement ranges without limitations.
Solid-state design with no moving parts, offering high reliability and extended lifespan.
High sensitivity with excellent linearity.
Simple installation requiring no special training.
Dust accumulation on the probe does not affect sensitivity.


Specifications:

Measurement Range: 0...1mg/m³ to 1000mg/m³ (selectable within this range)
Output Signal: 4-20mA @24VDC
Particle Size Detection: 0.1μm~200μm
Accuracy: ±3% FS
Accuracy Drift: ±1% FS per year
Operating Environment: Temperature -40℃~80℃, Humidity ≤90%
Duct Environment: Temperature -50℃~260℃ (customizable up to 500℃)
Airflow Velocity: 1m/s~30m/s (please specify if below 4m/s)
Vibration Resistance: 2g
Rated Power: 2W
Explosion-Proof Rating: Gas: Ex db IIC T6, Dust: Ex tb IIIC T85℃
Protection Level: Default IP65, customizable to IP66



Technical Parameter Customization:
Measurement Range: Selectable within 0..1000mg/m³.
Duct Diameter: Provide duct size to match appropriate probe length.


Special Requirements:
Default connection is thread + welded base; for flange or clamp connections, please specify.
Default measurement gas temperature does not exceed 250℃; for higher temperatures, please specify.
Default airflow velocity is 4m/s~30m/s; for significantly higher or lower velocities, please specify.