It is 3t/h in order to devise the largest flow, the biggest difference is pressed it is for 40kPa exemple, the particular numerical value in signal transition sees a picture 2.

Graph 2 changeover data

Press technically with the difference of orifice plate form a complete set change send implement, its show the dial dispute linear scale of discharge, if pursue,3 are shown. Compare to facilitate now, difference pressing was added to change in the periphery of dial send implement the sketch map that outputs voltaic scale. Electric current It is linear scale, linear scale of discharge F dispute, with It is evolution relation, . When the electric current in should expressing a head is I ＝ 8m/A, It is 4mA, occupy 25 ％ , pressing with a finger points to the 50 ％ place of full span.

Graph 3 discharge show dial

Divide the amount into commonly when desired result accumulating calculates appearance 4 paragraphs at 5 o'clock, if the graph is shown 4 times,the correspondence that needs the voltaic signal that press and flow concerns, but according to need, consult random of graphic representation method delimits section, dot.

Graph the correspondence of signal of 4 electric current and discharge concerns

Detect with orifice plate discharge, the technology is mature, precision is tall, wear well, although its survey a system nonlinear bring inconvenience to real operation, but after mastering 4 quadrantal signal to change a plan, still can apply freely.