LC3010 series intelligent displacer level transmitters are co-produced by American FISHER and SHANGHAHI XINGSHEN. The intelligent level controller is FIELDVUE DLC3000 of FISHER; other parts including displacer and torque tube are made by SHANGHAI XINGSHEN. The LC3010 transmitters can be applied to measure the liquid level, interface or density. The DLC3000 digital controller with HART communication protocol can also record the information that very important to process operation. The 375 HART communicator is compatible with DLC3000 digital level transmitter which is used to receive the data from process, intelligent level controller or displacer measuring chamber and can be connected with the field terminal box of intelligent level controller. With HART communicator, users can check, configure, calibrate or test the level controller and download the field information to the control system or receive the single loop information.    

LC3010 displacer level transmitter consists of FISHER DLC3000 digital level controller, chamber, measure mechanism, displacer and torque tube, etc. The displacer immersed in the liquid medium of measuring chamber and rigidly connected with the torque tube assembly. The force acting on the displacer is equal to its body weight force minus its buoyancy force. Under the effect of this joint force, the torque tube will rotate with a certain angle. The change of position, density or interface level with measured liquid will cause the change of displacer position which transferring to the torque tube assembly to make the torque tube rotate, and this rotation action then transferring to the intelligent level controller lever and cause magnet shift on the fixed lever system so as to change the magnet field checked by HALL-effect sensor and convert to electrical signal. The transmitter measures procedure variables by MCU and relative Electronic Circuit, provides two wire 4~20mA current output and HART communication and drives LCD. The MCU in transmitter not only has functions of ambient temperature compensation and linearization, but also compensates for the liquid density change due to process temperature change.