KY-82-type roof dynamic instrument uses: ⑴ determination stope roof roof sinking speed dynamic instrument manufacturers, the cumulative subsidence, observed while working with manometry, the roof can be drawn to reflect the characteristics of the P-△ L curve (see Figure 1). ⑵ measured stope hard roof fracture cases (see Figure 2) Roof dynamic instrument pricing information, I, II, III roof sinking speed measuring instrument. I, II, III instrument is placed in the lower roadway Shandong stope roof dynamic instrument manufacturers, the following occurs hard roof fracture: I Instrument No. sudden slow sinking speed quickly at first roof dynamic instrument, II, No. sudden instrument first slow sinking speed fast, III, No. instrument first slow sinking speed suddenly fast. More about KY-82-type roof dynamic instrument introduction, please log in Tai'an City Mechanical and Electrical Equipment Co., Warner official website, URL: http://www.tahnjd.com/product.asp?pro=38 KY-82-type roof Warner dynamic instrument of Tai'an City Mechanical and Electrical Equipment Co., Ltd., the official website strongly recommend: http://www.tahnjd.com/ Description: According to the figure after the roof dynamic instrument is installed, the upper part of the dashboard copper screw clockwise to loosen open, the dial scale raised to "0" bit, the initial value of the dial tone or no note of the installation after. After viewing over a period, such as changes in the value of the sinking. Warner mechanical, dynamic meter pricing information [roof], roof dynamic electromechanical instrument provided by Warner. Search for "intrinsically safe pressure mine detector, under reduced pressure hydraulic supports self-recording instrument, roof sinking speed newspaper" reliable supplier network operators choose to have the whole alliance certification: Warner Mechanical and Electrical Equipment Co., Ltd. Tai'an City (www . tahnjd.com), trustworthiness and reliability, "Business League call" on the page now click on live chat with us now!