Level Controller Using Inductive Transducer 3023

Categories: Instrumentation


ADTRON’S Level measurement and control system demonstrates the principle and working of a specialised dedicated Inductive type level transducer known as Linear Variable Differential Transformer (LVDT) and shown here is one of its unique application to measure level accurately. A special arrangement of float ball coupled with LVDT is used to measure level continuously, an excitation source, electronic instrumentation for control and digital readout all enclosed in a specially designed users friendly elegant powder coated metal cabinet with a well spread intelligently designed circuit layout on imported acrylic front panel, are some of its other important features.


Parameter Measured           :           Level.

Measurement System         :           a] Float ball transducer assembly.

                                                                         b] Electronic Instrumentation.

Transducer                                 :           Linear Variable Differential Transformer (L.V.D.T.).

Type                                                 :           Spring loaded core type.

Level Measurement             :           Continuous.

Controller                                    :           1]   Electronic type, compares the Actual level in the overhead tank in the set level.

                                                                          2]  Electronic type, compares the actual level in the under-ground tank with the minimum level required to avoid free running of the mono-block pump.

Excitation Source                  :           Sine wave of 2 KHz 3V p.p.

Readout                                         :            3.5 digit digital display ; dual mode to read :                                                               1] Set level in mm.

                                                                          2] Actual level in mm.

Motor                                              :            Mono-block water pump operating in 230V, 50 Hz AC.

Controls                                        :           1] Set point control.

                                                                          2] Display mode control.

                                                                          3] Mains ON / OFF control.

Test Points                                  :            Multicoloured test points are provided at various stages in the circuit to observe waveforms and voltages.

Indicator                                      :           1] Mains ON / OFF.

                                                                         2] Mono-block pump ON / OFF.

Power Requirements           :          230V, ± 10% AC, 50Hz 1f.

Panel Size                                      :         10″ x 13″

Standard Accessories           :         Detailed Instruction Manual.