inhalable dust sampler

Inhalable dust sampler technical parameters:

inhalable dust sampler is used to collect total dust and exhaled dust in the air environment. It uses the filter weighing method to capture inhalable particles (PM10) in indoor air.

1.Sampling flow rate: 5-30 L/min, 5-25 L/min, 10-25 L/min, 1-10 L/min (flow rate optional) Respirable dust sampling flow rate: 20 L/min

2.Sampling flow error: ≤±3%FS

3.Sampling flow stability: sampling flow stability of the sampler within 60 minutes ≤ 3.0% FS

4.Load capacity: ≥200Pa

5.Continuous working time: ≥100min

6.Working noise: ≤75dB(A)

7.Flow meter accuracy: not less than level 2.5.

8.Sampling time error: ≤±0.1% within 5 minutes

9.Average flow rate at sampling port: 0.5～4.0m/s

10.Air tightness: The sampling head and flow meter of the sampler are kept under a pressure difference of (1000-1100) Pa for 1 minute, and the pressure change shall not exceed 100 Pa.

11.Ambient temperature: -10～40℃ Relative humidity: ≤95%

12.Explosion-proof type: Mining intrinsically safe type ExibI (150°C), suitable for flammable and explosive workplaces and underground sampling in coal mines.

13.Intrinsically safe battery pack: Use Ni-H nickel-metal hydride batteries 2.7A/h, 6 cells, 4 0.51Ω/10W current limiting resistors in series, encapsulated with epoxy resin and placed in the battery box, rated voltage Ue: 7.2V; its maximum output voltage U0: 9.0V; maximum output current I0: 4.52A.

14.Overall dimensions: 149×202×80 (mm)

15.Weight ≤ 1.75Kg

16.Ambient temperature: 0～40℃ Relative humidity: ≤95%

17.Ambient atmospheric pressure: 80KPa~110KPa Underground coal mines with gas or coal dust explosion hazards

18.Dust collection scope: all dust and respirable dust.