Shandong Weifang IFC-2 dust sampler

IFC-2 dust sampler I. Overview: IFC-2 dust sampler is used to determine the concentration of dust in the air environment instrument by the pump, flow meter, the timing control circuit, flow control circuit and intrinsically safe power supply and other components, with total dust sampling head and respirable dust sampling head, can harm the human body non-respirable dust and respirable dust separation, separation BMRC curve in line with the standard curve. The sampler uses scraper pump, vacuum pump large and small pulsating flow, flow stability, the timing is controlled by the MCU to complete, timely and more accurate. Rugged metal housing and sealing, and also has a small size, low noise, compact structure, stable performance, easy operation, with the advanced level in the current domestic similar products. It can be widely used in the field of occupational health, metallurgy, mining, chemicals, building materials, foundry, power, etc., and for environmental places state regulations II explosive gases. Second, the technical indicators: 1. Flow range: 15 ~ 25L / min continuously adjustable vacuum suction 2:> 2500Pa 3. Timing range: 0 ~ 99min error ≤0.1% 4. Continuous working:> 180 minutes (20 L / min flow time) 5. meter accuracy: 2.5 6. Flow Stability: within 30min ≤5% 7. sampling head tightness: 1000Pa pressure does not leak under 8. The Working noise: <55dB (A) 9 Working conditions: Temperature 0 ~ 40 ℃ 10. Relative Humidity: 95% atmospheric pressure 80 ~ 119Kpa 10. Power supply: 7.2V / 3.5Ah rechargeable battery 11. Working current: <800MA 12. explosion protection: Intrinsic safety Ex (ib ) IIA T3 (200 ℃) 13. Dimensions: 210mm × 130mm × 90mm 14. Weight: 2.6kg Third, the structural principle: intrinsically safe power supply: 7.2V / 3.0Ah NiMH battery pack, silicone rubber potting constitutes On battery. Replacing the battery must be provided by my unit, users consequences of other batteries is not responsible for my unit. Motor: Three motors reverse parallel diode constituting the protective element. Note: 1), is prohibited in explosive atmospheres dismantling equipment and charging!