Product Name: coal with wind speed sensor 

 Product Model: GFY15 type 

 Coal safety mark No.: MFA060011 

 Description: 
 This product uses the embedded micro-controller technology, the use of the differential pressure changes in principle to measure the wind speed, internal linearization and temperature compensation using digital realization. Completely solved the problem of air flow turbulence within the duct, and still be able to guarantee high-precision measurements at low wind speeds. With simple structure, measurement accuracy, stable performance and high reliability. With various types of coal mine safety monitoring system supporting the use of continuous monitoring of the wind speed in the work environment. 

 The main technical indicators: 

 Item Specification 

 Measurement range (0.4-15) m / s 
 The basic error of ≤ ± 0.2% 
 Response time ≤ 10s 
 Display resolution of 0.1m / s 
 Working power, DC (9 to 24) V/95mA (intrinsically safe power supply) 
 Output signal (200 to 1000) Hz, the RS485 (baud rate) 
 Transmission distance ≥ 2km 
 The alarm mode intermittent audible and visual alarm 
 Explosionproof Type Exibd I 
 4 LED display 
 Overall dimensions of 200 × 125 × 55mm 
 Weight 0.8kg 
 Equipment FYF5 mine with a remote control