MEASURING PRINCIPLE
Guided wave radar is a measuring instrument based on the principle of time travel. The radar wave travels at the speed of light, and the running time can be converted into a level signal through electronic components. The probe emits high-frequency pulses and conducts them along the cable or pole probe. When the pulse encounters the surface of the material, it is reflected back and received by the receiver inside the instrument, which converts the distance signal into a level signal.
INPUT
反射的脉冲信号沿缆式探头或杆式探头传导至仪表电子线路部分，微处理器对此信号进行处理，识别出微波脉冲在物料表面所产生的回波。正确的回波信号识别由智能软件完成，距离物料表面的距离D与脉冲的时间行程T成正比：D=C×T/2其中C为光速因空罐的距离E已知，则物位L为：L=E-D
Output
By inputting the empty tank height E (=zero), full tank height F (=full range), and some application parameters to set, the application parameters will automatically adapt the instrument to the measurement environment. Corresponding to 4-20mA output.
MEASURING RANGE
H - Measurement Range
L - Distance from empty tank
B - Top blind spot
E - Distance from probe to tank wall
The top blind spot refers to the small distance Z between the high material surface of material Z and the measurement reference point.
The bottom blind spot refers to a distance near the bottom of cable Z that cannot be measured.
The effective measurement distance is between the top blind spot and the bottom blind spot.
English 
简体中文