Explosion-proof dust detector

1.Explosion-proof dust detector product overview

The Explosion-proof dust detector (hereinafter referred to as the measuring instrument) is an instrument used to measure the concentration of floating dust in the ambient air based on the principle of infrared light absorption. The instrument is explosion-proof according to the MT163-1997 "General Technical Conditions for Direct-reading Dust Concentration Measuring Instruments" and Q/320582YLA013-2016 "CCZ1000 Direct-reading Dust Concentration Measuring Instrument" and the ExibI level (intrinsically safe) explosion-proof standard in GB3836-2010 Design a dust concentration measuring instrument. The separation efficiency of the respiratory separation device of this instrument fully complies with the internationally recognized "BMRC" curve requirements. It can accurately and timely reflect the quality of respiratory dust inhaled by dust-exposed personnel and the pollution status of dust in different dust workplaces. , providing reliable data for accurately evaluating the health status of the workplace. This instrument is suitable for underground coal mines and other workplaces containing explosive hazardous gases.

The instrument has compact structure, simple operation, large load and negative pressure capabilities, automatic timing sampling, stable flow, full Chinese LCD display, and easy portability.

2. Explosion-proof dust detector technical indicators

1. Dust concentration measurement range: 0.01mg/m3～1000mg/m3

2. Relative error of dust concentration measurement: ±15%

3. Stability relative error: ±2.5%

4. Sampling flow: 2.0L/min

5. Sampling flow error: ≤2.5%

6. Sampling flow stability: ≤±5%

7. Sampling efficiency: in line with the "BMRC" sampling efficiency curve

8. Power supply: Ni-H battery 2.3A/h, 6 cells, connected in series with 4 0.51Ω/10W current-limiting resistors, potted with epoxy resin and placed in the battery box, rated voltage Ue: 7.2V; Maximum output voltage Uo: 9.0V; Maximum output current Io: 4.52A

9. Working voltage: 6.5V~9.0V DC (intrinsically safe)

10. Explosion-proof type: intrinsically safe for mining, explosion-proof mark: Exib I Mb

11. Overall dimensions: 218×160×80 (mm)