Introduction SFC25 respirable constant current dust sampler is a common instrument for collecting the gas in atmospheric environment and workshop site .It is widely used in metallurgy, chemical industry, building materials, electric power, mining,etc The instrument has high performance suction pump, automatic time control circuit, flow control circuit, automatic feedback constant current circuit, undervoltage protection alarm circuit, safety power supply. It is also equipped with a variety of dust preliminary traps ,among which , thewholedust trap is used for measurement of the total dust concentration and the impect trap for measurement of respirable dust concentration can seperate the harmful respirable dust from norespirable dust ,collecting both the two dust sanples.The separation efficiency reaches the Internationally recognized “BMRC”curve standard .It is a kind of more reliable and practicalpreceding stagedust separation device. The machine casing is moistureproof, dustproof and antistatic . It has the advantages of nopulsating flow, negative pressure, big load capacity, automatic timing sampling, safe and reliable, durable, easy to carry and suitable for field use .The main technical parameters has reached or approached international advanced level. Main features: 1.Micro processing technology, humanized design, liquid crystal display 2.With buit-in high performence nimh battery it can work continuously for a long time 3.Charging and Undervoltage indication 4.simple operation and durable 5.highly accurate timing 6. AC/DC compatible 7 easy and fast to choose time ,1-999 mins Technical parameters 1. Flow quantity range (optional) : 5~25L/min, L=20L/min 2. Suction negative pressure: ≥2500Pa 3. Timing range :1~999min 4. Timing error :≤0.1% 5.Continuous Working hours : >180 mins 6.Work noise: ≤55dB 7.Power supply:DC 9.6V/3.0Ah rechargeable battery 8.working current <1.2A 9.Flowmeter precision :2.5 grade 10.Flow stability: <5% 11.Sampling head pressure tightness : Under 1000Pa differential pressure ,air-tight 12. Sample Range: respirable dust ,whole dust 13.8. Environmental conditions : a working temperature: -10°C~40°C b.,relative humidity :≤95 %
Introduction SFC25 respirable constant current dust sampler is a common instrument for collecting the gas in atmospheric environment and workshop site .It is widely used in metallurgy, chemical industry, building materials, electric power, mining,etc The instrument has high performance suction pump, automatic time control circuit, flow control circuit, automatic feedback constant current circuit, undervoltage protection alarm circuit, safety power supply. It is also equipped with a variety of dust preliminary traps ,among which , thewholedust trap is used for measurement of the total dust concentration and the impect trap for measurement of respirable dust concentration can seperate the harmful respirable dust from norespirable dust ,collecting both the two dust sanples.The separation efficiency reaches the Internationally recognized “BMRC”curve standard .It is a kind of more reliable and practicalpreceding stagedust separation device. The machine casing is moistureproof, dustproof and antistatic . It has the advantages of nopulsating flow, negative pressure, big load capacity, automatic timing sampling, safe and reliable, durable, easy to carry and suitable for field use .The main technical parameters has reached or approached international advanced level.
