CCZ20A type dust sampler

CCZ20A type dust sampler First, the major technical indicators respirable dust when: 20L / min the total dust: 25L / min load capacity: ≥300Pa Flow accuracy: ± 2.5FS Stability: ≤5% Timing Accuracy: ≤ ± 0.1% Mining dust Range: Full dust, respirable dust Timing range: 0 to 99 minutes of continuous working time arbitrarily set:> 120min Working noise: ≤70dB (A) Explosion-proof type: Mine intrinsically safe ibI (150 ℃) Applications: temperature -5 ~ 35 ℃ Relative humidity ≤95% RH Dimensions: 200 × 120 × 75mm Instrument weight: 1.75kg two, CCZ-20A-type dust sampler is an instrument for measuring the ambient concentration of dust floating in the air. The instrument (direct-reading dust concentration measuring instrument general technical conditions) JJG520-2002 (dust sampler identification procedure), Q / FY-01-2005 dust sampler corporate standards and GB3836.4-2000 standard Exibl according MT163-1997 Ratings (intrinsically safe) proof design, for a coal mine and other workplace containing explosive gases. The dust sampler consists of high performance suction pump, automatic time control circuit, flow control circuit, automatic feedback constant current circuit, undervoltage protection alarm circuit, safe power supply and other components, also has a variety of pre-trap dust. Which is used to determine the total dust concentration in the whole pre-trap dust; another method for determining the concentration of respirable dust impact pre-trap, such a pre-trap can harm the body's respiratory and non-respiratory dust dust separation, can an acquisition can have both respiratory and respirable dust samples of two non, the separation efficiency of the internationally recognized quot; BMRC "standard curve, it is a more reliable and practical dust pre-separation device that instrument. use ibI (150 ℃) grade intrinsic safety explosion-proof structure, especially for coal mine and other workplace containing hazardous explosive gases. This machine cabinet with a high-strength ABS plastic, and made moisture, dust, anti-static and other special treatment. The instrument has no pulsing air, vacuum, large load capacity, automatic timed sampling, safe, reliable, durable, easy to carry and field use, etc., the main technical indicators have reached or approached the international advanced level.