伊宁lzb转子流量计海林低温流量计海林

一、产品简介Product introduction
LZZH系列金属管浮子流量计，是工业自动化过程控制中常用的一种面积流量测量仪表。它具有体积小，工作运行稳定可靠，适用于测量液体，气体、各种流量的测量和在各种环境中使用。

LZZH series of metal tube rotameter, Is the industrial automation process control in a common area of flow measuring instrument. It has the advantages of small volume, stable in operation ａnd reliable, Suitable for measuring of liquid, gas, Using the measurement of various flow ａnd in various environments.

LZDH系列金属管浮子流量计智能变送器以MCU微处理器为核心，利用磁传感器，通过数字滤波，软件修正等数字信号处理技术，对磁场变化进行检测，并通过液晶显示屏幕，提供良好的人机交互界面，可输出4-20mA电流信号，上下限报警等多种信号。显示瞬间流量和积累流量，为用户提供更多方便，广泛应用于国防、化工、石油、冶金、能源、医药、轻工、食品、水处理等工业部门中的流量检测和过程控制。

LZDH series of metal tube rotameter intelligent transmitter based on MCU microprocessor, The use of magnetic sensor, The digital filter, Digital signal processing technology such as software correction, To detect the changes in the magnetic field, And through the liquid crystal display screen, Provide good man-machine interface, Can output 4-20mA current signal, A variety of signal alarm etc.. Display ａnd accumulated flow ａnd instant flow, To provide more convenience for the user, Widely used in national defense, chemical, petroleum, metallurgy, energy, medicine, light industry, food, Water treatment Traffic detection ａnd process control industries.

二、工作原理Working principle

被测介质自下而上流经测量管浮子，上下端产生差压形成上升力，当浮子所收上升力大于浸在流体中浮子重量，浮子便上升，环隙面积随之增大，环隙处流体流速迅速下降，浮子上下端差压降低，作用于浮子的上升力随着减小，直到上升力与浸在流体中的浮子重量平衡时，浮子便稳定在某一位置，浮子位置的高低即对应着被测介质流量的大小。浮子内置磁钢，在浮子随介质上下移动时，磁场随浮子的移动而变化。

The measured medium flowing through the measuring tube from the bottom to the top of the float, Upper ａnd lower producing differential pressure forming rising force, When the float, the lift is greater than the immersion float in the fluid weight, The float will rise, The annulus area increased, Ring gap flow velocity decreased rapidly, Upper ａnd lower pressure reducing float, To float upward force with decreasing, Until the lift ａnd dip in the fluid float weight balance, The float is stable at a certain position, The float position that corresponds to the measured medium flow. The built-in magnetic steel, The float with the medium moves up ａnd down, The magnetic field with the float is moving.

对于就地型，由就地指示器中的随动磁钢与浮子内磁钢耦合，而发生转动，同时带动指针，通过刻度盘指示出此时流量大小。

For in situ type, By in situ indicator in the follow-up of magnet steel ａnd float inside the magnet coupling, And rotate, At the same time to drive a pointer to, The scale indicates the size of the flow.

对于智能型，由智能型指示器中的随动磁钢与浮子内磁钢耦合，而发生转动，同时带动传感器磁钢及指针，通过一个磁传感器将磁场变化转化成电信号，经A/D变换，数字滤波，温度补偿，微处理器处理，D/A输出，LCD液晶显示，来显示出瞬时流量及累积流量大小。

For the intelligent, By the intelligent indicator in the follow-up of magnet steel ａnd float inside the magnet coupling, And rotate, At the same time driven sensor magnet ａnd pointer, By means of a magnetic sensor, the magnetic field changes into electrical signals, The A/D transform, digital filter, temperature compensation, microprocessor, D/A output, LCD liquid crystal display, to show the instantaneous flow ａnd cumulative flow.