1. Overview 
 IFC-2 explosion dust sampling instrument is used to determine dust concentration in air environment instrument, by the pump, flow meter, timer control circuit, flow control circuit and the safety power supply etc., with a total dust and respirable dust sampling head sampling head, can harm the human body and non-respirable dust respirable dust separation, separation curves meet the BMRC curve standards. 
 The sampler uses scraper pump, pump large negative pressure, pulse flow is small, flow stability, timing controlled by the MCU to complete, timely and more accurate. Rugged metal housing and the sealing, and also has small size, low noise, compact structure, stable performance, easy operation, similar products in the domestic leading level. Can be widely used in occupational health, metallurgy, mining, chemicals, building materials, foundry, power and other fields, especially for underground mines, which are a class of explosive gas mixture 1 or 2 zone places. 
 2. Technical Specifications 
 a. Flow Range 15 ~ 25L/min continuously adjustable 
 b. suction vacuum> 2500Pa 
 c. Timer Range 0 ~ 99min error ≤ 0.1% 
 d. continuous working time> 180 minutes 
 e. accuracy of 2.5 meter 
 f. Flow stability 30min, <5% 
 g. 1000Pa sampling head tightness does not leak under pressure 
 h. working noise <55dB 
 i. Working conditions Temperature 0 ~ 40 ℃ 
 95% relative humidity 
 Atmospheric pressure 80 ~ 119Kpa 
 j. Power Supply 7.2V/3.5Ah rechargeable battery 
 k. Current <1.2A 
 intrinsically safe explosion-proof in the form l. ibI (150 ℃) 
 m. Dimensions 210mm × 130mm × 90mm 
 n. Weight 2.6kg 
 3. Instrument sets of 
 a. host 1 
 b. a total dust sampling head 
 respirable dust sampling head c. 1 
 d. capture board (impact plate) 2 
 e. Grease 1 box 
 a scraper plate f. 
 g. sample clip (membrane folder) 2 
 h. Membrane (Φ40) 2 boxes 
 i. 1 Tripod 
 j. charger 1 
 k. box 1 
 l. Note that 1 
 Certificate 1 m.