Dust concentration sensor

Dust concentration sensor introduction

Dust concentration sensor is intrinsically safe products, using the principle of light scattering detection of coal mine dust concentration of air, a variety of standard signal format output and alarm functions, can be used alone or in combination, after review and supporting the use of coal mine safety monitoring system. Dust concentration sensor is an intelligent instrumentation, zero, the default value of K, alarm settings and other functions can be achieved by remote control, with a stable and reliable, easy to use features.chinacoal05

Dust concentration sensor parameter

Explosion-proof type: Mine intrinsically safe,

Measurement range: 0 mg / m ~ 1000 mg / m

Dust concentration measurement relative error: ± 15%

Sampling flow: 3 L/min

Sampling flow error: no more than plus or minus 2.5%

Remote control range: distance is not more than 5 m, Angle less than 120

Output signals: 200 ~ 1000 Hz frequency, output high level greater than 3 V (load resistance is 1.5 k Ω); RS485 interface, communication baud rate 1200 BPS
Power supply voltage: DC 12 ~ 24.5 V, rated voltage 18 V DC

Working current:≤3 00 mA

Alarm function and error: sensor with the function of alarm, emergency alarm in 0 mg/m - 1000 mg/m within the scope of any setting, alarm display value and the value of the difference of no more than dust concentration measuring relative error requirement (factory default set to 6 mg/m)

Alarm sound level intensity,at 1 m distance from the acoustic signal level is not less than 80 dB (A)

dimension:300 260 110 (mm)

weight:≤ 5 kg