Explosion-proof dust detector Model: HDL-FC-20G-EX
I. Overview
The HDL-FC-20G-EX explosion-proof laser inhalable dust continuous detector (hereinafter referred to as the explosion-proof dust detector) is primarily used for detecting the concentration of dust particulate matter (PM10 and TSP) and providing an over-limit alarm in industrial and mining enterprises. This instrument sucks in air containing dust particles from large public indoor spaces, industrial and mining enterprises, factory workshops, or production areas, analyzes it using a high-precision laser dust detection sensor, and displays the dust concentration value in that space on the instrument's display screen.
The HDL-FC-20G-EX explosion-proof laser continuous inhalable dust detector utilizes the advanced light scattering principle, employing a semiconductor laser as the measuring light source to conduct highly sensitive non-contact measurements of dust in the air. The entire testing process is managed and controlled by a single-chip microprocessor, and a high-resolution, large-screen, high-brightness liquid crystal display is used.
II. Main Technical Indicators
1. Dust measurement grades: PM10 and TSP (PM2.5 optional)
2. Dust measurement range: 0.001~40.0mg/m³; various specifications can be customized;
3. Detection sensitivity: 0.001mg/m³; repeatability error: ≤±3%;
4. Air sampling flow rate: 2.L/min (0.1 ft3/min);
5. Sampling time: manually settable from 1 second to 100 minutes. Directly readable dust mass concentration (ug/m3).
6. It features an alarm setting function for excessive dust concentration, allowing users to set their own ultra-high concentration alarm values. It has a built-in buzzer and can be connected to an external audible and visual alarm. Additionally, the switch output can be connected to an external exhaust fan, which will automatically start when the dust concentration reaches an ultra-high level, thereby reducing the dust concentration in the space

7. Equipped with RS485 communication interface and 4-20mA current output, it can be connected to a computer for data transmission, remote monitoring, and printing of test results.
8. The instrument is equipped with a programmable clock chip to provide accurate date and time information for measurements. 9. It features a self-cleaning calibration function.
10. Working environment: Temperature (-30 to 75℃); Humidity RH (20 to 80) %
11. Operating power supply: 220V AC power supply; or 12V DC
12. The service life of the instrument is more than five years
13. Dimensions: 360mm × 320mm × 250mm
14. Protection level: IP65 (Explosion-proof mark: ExdIIBT6)
14. Weight: approximately 25KG;
III. Characteristics
The outer box of this instrument is cast according to national safety explosion-proof standards, with a thickness of 10mm and an explosion-proof rating of IP65. It is primarily used in flammable and explosive locations, featuring easy installation, fast testing speed, high sensitivity, good stability, simple operation, and is suitable for measurements in large factories and workshops. It ensures safe production, real-time monitoring, and has an alarm function.
It features an alarm setting function for excessive dust concentration, allowing users to set their own ultra-high concentration alarm values. It is equipped with a built-in buzzer and can be connected to an external audible and visual alarm. Additionally, the switch output can be connected to an external exhaust fan, which will automatically start when the dust concentration becomes ultra-high, reducing the dust concentration in the space
IV. Applicable occasions
The HDL-FC-20G-EX explosion-proof dust detector is suitable for rapid determination of inhalable particulate matter (PM10 or TSP) concentration in public places, detection of dust concentration in industrial and mining production sites, monitoring of inhalable dust concentration in environmental protection fields, and evaluation of purification efficiency of air purifiers. It can also be used for real-time detection of dust concentration in production workshops, factories, and other areas, with alarm function.