1. Overview 
 FC-1A-type dust sampler was used to determine dust concentration in air environment instrument, which uses double-pump, from the structure to overcome the pulse flow, the flow more stable. The use of aluminum box sampler, easy to carry, easy to operate, durable, can be widely used in metallurgy, mining, chemicals, building materials, foundry, power and environmental protection, health monitoring and other departments, is currently the more dust sampler ideal product. 
 2. Structural features 
 By the sampling head of the sampler, flow meter, suction pump, when the control circuit, the voltage indicating circuit and the AC and DC power supplies and other components. Suction pump to pump, with a compact, exhaust pressure, load capacity, flow stability and so on. 
 3. Technical Specifications 
 a. Flow Range 3 ~ 30L/min 
 b. suction vacuum> 2500Pa 
 c. 2.5 meter accuracy 
 d. Timer Range 0 ~ 99min error ≤ 0.1% 
 e. Continuous working time is greater than 3 hours on battery 
 f. Working conditions Temperature 0 ~ 40 ℃ Relative humidity "95% 
 g. Power Supply 9.6V/4.5Ah Ni-Cd rechargeable battery 
 h. Current <1.0A 
 i. Host Dimension 230mm × 135mm × 110mm 
 4. Instrument sets of 
 a. Sampler host 1 
 b. sampling head 1 
 c. sample clip 2 
 d. membrane 2 boxes 
 e. Power line 1 
 f. 1 Tripod 
 g. Manual 1 
 h. Certificate 1 
 i. a box