The material flow detector, the switching of material flow, coal flow testing, coal flow switch, material flow detection device 
 The machine used for the detection of the belt conveyor transport of materials, may issue a load signal. If sprinklers connected to the automatic sprinkler materials. This device could also be applied to run the tape machine. 
 Technical parameters: 
 ● Ambient temperature: -30 ℃ ~ 70 ℃ Relative humidity greater than 85% 
 ● Action point of view (two-way): ± 20 ° contact number: a regular open a normally closed 
 ● contact capacity: 380V 5A 
 ● Protection class: IP the -55 reliability: 106 
 Structural features: 
 ● Tape wide, high belt speed door bracket installation, shown in Figure 1 
 ● If the tape is narrow, single-arm bracket can be used with a speed lower 
 ● contact with the hammer and materials, and reduce the direct impact of the material on the detector, extended service life 
 ● see Figure 1 if the choice of single-arm stand, disconnect beams in the arrow points to the beam and the junction of the arm and instrument cable-stayed steel, as shown in the dotted line shown in 
 How it works: 
 ● SFLL-A material flow detection device, the detection method of the the sagging hammer contact with the material. Tape transportation of materials, materials to promote the ball and with the offset of the arm to the side of the offset angle is greater than 20 °, the internal switching, the output of a switching signal. 
 The ● SFLL-B-type use of carrier detection. Running tape loaded, the tape sink, installed in the tape following the detection trolley compression and lever drive to the machine limit switch action, the output signal to achieve detection.