CCZ-20 dust sampler

CCZ-20 dust samplerSuitable for underground coal mines and other workplaces containing explosive gases. The sampler is equipped with two types of dust pre collectors, one is a full process pre collector for measuring the total dust concentration; Another type is a pre collector for measuring the concentration of respiratory dust. This pre collector can separate respiratory dust and non respiratory dust that pose a threat to the human body. It can collect both types of dust samples at once, and its separation efficiency meets the internationally recognized "BMRC" curve standard. The CCZ-20 dust sampler is an instrument used to measure the concentration of airborne dust in ambient air. This instrument is designed for explosion-proof according to GB/T 20964-2007 "General Technical Conditions for Dust Samplers", JJG520-2005 "Verification Regulations for Dust Samplers", Q/320582YLA001-2010 Enterprise Standard for Dust Samplers, and ExibI level (intrinsic safety type) explosion-proof design in GB3836.1-2000 and GB3836.4-2000 standards,
CCZ-20 dust samplerTechnical parameters
Sampling flow rate: 10-25L/min (adjustable)
Sampling flow error: ≤ 5% FS
CCZ20 dust sampler sampling flow stability: Sampling flow stability within 30 minutes ≤ 3.0% FS
Load capacity: ≥ 200Pa
Continuous working time: ≥ 100min
Work noise: ≤ 75dB (A)
Accuracy of flow meter: not less than level 2.5.
Sampling time error: ≤ 0.1% CCZ20 dust sampler
Average flow velocity at sampling port: 0.5-4.0m/s
Sampling accuracy: ≤ 10%
Intrinsic safety battery pack: using Ni-H nickel hydrogen batteries 2.3A/h, 6 cells, connected in series with 4 current limiting resistors of 0.51 Ω/10W, sealed with epoxy resin and placed in the battery box, rated voltage Ue: 7.2V; Output voltage U0: 8.4V; Output current I0:3.0A.
CCZ-20 dust samplerDimensions: 149 × 202 × 80 (mm)
Weight: ≤ 1.75kg
Operating environment temperature: 0-40 ℃
Relative humidity: ≤ 95%
Environmental atmospheric pressure: 80KPa to 110KPa in coal mines with gas or coal dust explosion hazards