Instrument introduction The sampler is equipped with two kinds of dust pre - trap , a determination of the total dust concentration of the whole dust pre - trap ; another respirable dust concentration was measured pre - catching This pre - trap separation of respirable dust hazards to human and non- respirable dust , an acquisition may have both respiratory and non - respiratory two dust samples , the separation efficiency of the internationally recognized "BMRC" curve standard , is a more reliable dust separation apparatus .The instrument is also equipped with highperformance aspirator has no pulsating flow , load capacity negative pressure , automatic timing sampling , flow stability , simple operation , easy to carry and so on . Technical parameters Sampling flow : 20L/min Load capacity :> 1000Pa Sampling flow error : ≤ 2.5% Sampling range : full of dust or respirable dust Arbitrary set timer range 0-99 minutes Continuous working time :> 120min Work noise : ≤ 70dB (A) Power : maximum open circuit voltage ≤ 8.4V maximum short-circuit current ≤ 4.2A Dimensions : 200 × 120 × 75 (mm) Weight : 1.75 kg The use of ambient temperature : 0 ~ 40 °C Relative humidity : ≤ 95% Environment atmospheric pressure : 80KPa ~ 110KPa containing gas or coal dust
explosion hazard coal mine
Instrument introduction
The sampler is equipped with two kinds of dust pre - trap , a determination of the total dust concentration of the whole dust pre - trap ; another respirable dust concentration was measured pre - catching This pre - trap separation of respirable dust hazards to human and non- respirable dust , an acquisition may have both respiratory and non - respiratory two dust samples , the separation efficiency of the internationally recognized "BMRC"
curve standard , is a more reliable dust separation apparatus .The instrument is also
equipped with highperformance aspirator has no pulsating flow , load capacity negative
pressure , automatic timing sampling , flow stability , simple operation , easy to carry and so on .
