I. Overview

The LDC series plug-in electromagnetic flowmeter is a new type of flow instrument developed on the basis of pipeline electromagnetic flowmeter. In response to the difficulties and high costs of installing pipeline electromagnetic flowmeter on pipelines, especially after adopting pressurized opening and installation technology, the plug-in electromagnetic flowmeter can be installed without stopping water supply, as well as on cast iron and cement pipelines.

2、 Product Features

The plug-in electromagnetic flowmeter is easy to install in pipeline flow detection, can not cut off flow, and can be opened with pressure on site. It has installation and price advantages, and is particularly suitable for flow measurement of water supply and drainage pipelines;

Wide universality and strong interchangeability;

The forward and reverse flow integration function allows users to choose between forward or reverse measurement (default is forward measurement at the factory);

Upper and lower limit alarms, users can set the upper and lower limit instantaneous flow rates as needed;

Air traffic control alarm: When the flow meter measures the empty pipe inside the working state and the instantaneous flow rate is zero, an alarm is displayed in the upper right corner;

Power off protection, the calculation results of the flowmeter and the parameters set by the user will not be lost after power failure, and EEPROM can save the set parameters and accumulated values;

The converter and sensor have multiple protection levels and installation methods, including IP68 suitable for submersible installation.

3、 Working principle

According to Faraday's principle of electromagnetic induction, a pair of signal electrodes are installed on the tube wall perpendicular to the axis of the measuring tube and the magnetic field lines. When the conductive liquid moves along the axis of the measuring tube, it cuts the magnetic field lines and generates an induced potential. This induced potential is detected by two detection electrodes, and its value is proportional to the flow rate. Its value is:

4、 Technical parameters