Udm-40 Capacitance Level Transmitter

These UDM-40 Capacitance Level Transmitter is used in the industrial production process for various types of conductive and non conductive liquid level, granular powder, especially for the medium. such as acid and alkali and high temperature (200 A C) medium.

Features
The electric circuit is made to be the basis of a two-wire transmitter module.
It can earthquake proof, to the outside world without radio frequency interference.
Changes caused by zero-field installation, resetting does not affect the full-scale value.

Measuring principle
The insulated electrodes inserted in the measurement of the medium will form a capacitor. The change of high degree has transformed the media capacity. The change is
I C = 5 A Iu A H/9Ln (D1/D2)-C0
Where C0, after emptying the container in the media, the initial electrode capacitance of the container wall.
Highly synchronized changes in the media capacity to give electronic module unit, the capacitance voltage converter - the current standard amplified output current signal, the output signal has a good constant current characteristic and output overload capability.