The LC3010 series intelligent electric float liquid level (boundary) transmitter is used to measure liquid level, boundary or density, and can output 4-20mA standard DC signal. The DLC3000 series intelligent liquid level controller using the HART communication protocol can also access information that is crucial for process operation. By using the 275 type HART communicator compatible with the DLC3000 series intelligent liquid level controller, information from the process, intelligent liquid level controller, or float measurement chamber can be obtained. The HART communicator can be connected to the on-site junction box of the intelligent liquid level controller. Due to the use of a HART communicator, users can query, configure, calibrate, or test smart level gauges. Using the HART protocol, information from the field can be downloaded to the control system or received as individual loop information.