1. Definition of Multivariable Transmitter
The LEEG Multivariable Transmitter is an intelligent sensing and measurement platform that integrates multiple parameters-differential pressure, pressure, and temperature-into a single unit. It is an intelligent industrial transmitter that transmits data via a unified output signal interface (4-20mA, HART, RS485, PA, etc.).
It performs real-time calculations for parameters in flow equations, including density, viscosity, velocity, Reynolds number, β ratio, flow coefficient, approach coefficient, and gas expansion coefficient. This flow calculation capability yields more accurate measurement results, thereby reducing process fluctuations and increasing benefits.
The primary function of the multivariable transmitter is to form a flow meter together with a throttling device. It provides multivariable outputs: differential pressure, pressure, and temperature parameters, and supports level measurement with density compensation, enhancing accuracy. It enables one instrument to replace several traditional transmitters, reducing procurement and installation costs while improving reliability.
2. Functions of Multivariable Transmitter
The LEEG Multivariable Transmitter can simultaneously acquire variables for multiple parameters. Through algorithmic correlation analysis, such as calculation of differential pressure and density, and coupled compensation of pressure and temperature, our measurement results become more accurate and stable. Real-time compensation can automatically adjust the output based on environmental changes and variations in the medium, maintaining high precision even under conditions of significant fluctuation. Furthermore, the multivariable transmitter can calculate flow rate from measured primary data (differential pressure and temperature), facilitating easier integration with industrial systems like DCS and PLC, thereby making data management easy and convenient.
3. Structure of Multivariable Transmitter
A typical multivariable transmitter consists of a housing structure, signal conditioning module, processing and algorithms, transmission module, display and interaction interface, and power supply and protection components. To achieve rapid delivery and quick maintenance, the LEEG Multivariable Transmitter employs a modular design and manufacturing approach, divided into just six independent modules: Front Cover, LCD, the Enclosure Body, EMC module, Rear Cover, and Sensor.
With the development of industrial intelligence, field instruments are evolving from single to multi-dimensional sensing. Multivariable transmitters represent a future trend. Through multi-dimensional measurement and intelligent computation, they help factories reduce the number of devices, improve data quality, and optimize control strategies. They will play an increasingly important role in more industries and scenarios.
