Individual Dust Sampler CCZG2

1. Sampling Flow Rate: Respirable Dust Sampling: 2L/min (flow rate is fixed)

2. Sample Flow Error: ≤3% FS

3. Sampling Flow Stability: Sampling flow stability within 8 hours ≤ 3.0% FS

4. Load Capacity: ≥1000 Pa

5. Continuous Working Time: ≥8h

6. Operating Noise: ≤65dB(A)

7. Flowmeter accuracy: Not less than 2.5 grade.

8. Sampling Time Error: ≤0.1% within 5 minutes

9. Average Flow Rate at Sampling Port: 0.5～4.0 m/s

10. Airtightness: The sampler's sampling head and flowmeter maintain a pressure difference of (1000-1100) Pa for 1 minute, with the pressure change not exceeding 100 Pa.

11. Sampling Accuracy Error: ≤10%

12. Explosion-proof Type: Mining intrinsic safety type ExibI (150℃), suitable for flammable and explosive work environments and underground coal mine sampling.

13. Sampling Efficiency: Compliant with "BMRC" sampling efficiency curve14. Dimensions: 120×80×42 (mm)Weight: 450g16. The instrument battery uses Ni-H 1.3A/h, 5 cells, connected in series with 6 0.51Ω/3W current-limiting resistors. After being sealed with epoxy resin, it is placed inside the battery case. The output voltage U0 is 7V, and the output current I0 is 2A, forming the safety battery assembly.17. Explosion-proof type of instrument: Mining intrinsic safety type, Explosion-proof marking: Ex ibⅠ.Section 18: Coal mines with risks of gas or coal dust explosions underground