The instrument is compact, easy to operate, load, suction capacity, automatic timing sampling, flow stability, the entire Chinese liquid crystal display, easy to carry and so on.Main technical parameters
Dust concentration measurement range: total dust 0.1-1000mg/m3
Dust concentration measurement relative error: ± 10%
Stability relative error: 2.5%
Sampling flow rate: 2L/min
Sampling flow error: not more than 2.5%
Sampling flow stability: not more than 5%
Sample Performance: found \ "BMRC \" sampling efficiency curve
Power supply: Ni-H Battery 2.5A / h, 6 section, series 3 0.51Ω/10W current limiting resistor, with epoxy potting and placed the battery box, rated voltage Ue: 7.2V; its maximum outputvoltage Uo: 8.4V; maximum output current I0: 4.6A
Operating voltage: 6.5V-8.4V DC (intrinsically safe)
Explosion-proof type: Mine intrinsically safe, explosion-proof mark: Exib I
Dimensions: 280 × 228 × 80 (mm)
Weight: 3.05 kg
CFY7-CCHG1000 direct reading dust meter method of operation:
Clamp the membrane into the folder on the membrane, the membrane is placed attention to negative (hair side up) and then close the folder READY membrane
Power, instrument into standby, 3 seconds into the stable state

Dust concentration measuring instrument CFY7-CCHG1000 type, the principle of infrared light absorption method, one for determination of airborne dust in the depth of the instrument.The instrument according to MT163-1997 "direct-reading dust concentration measuring instrument general technical conditions" and the design of dust explosion Q/320581FYK007 depth measurement instrument, which the separation of the respiratory efficiency separation devices in full compliance with internationally recognized "BMDRC" curve requirements, canaccurate and timely reflection of who inhaled dust respirable dust mass and dust in different dust pollution in the workplace situation, in order to accurately evaluate the health situation in the workplace to provide reliable data, the apparatus for underground mine, other mines, workshops and other workplacesMeasurement of dust needed for any occasion, small size, light weight, high precision, accurate measurement, easy, safe and reliable, is the most advanced one of the dust concentration measuring instrument.