Siemens SIMEAS-T 7KG6111-2LK11-0B - Operating principle; Overview circuit diagram

SIMEAS-T - Transducer without auxiliary power
9
4 Operating principle
The transformer (1) transfers the input signal IE or UE via the rectification and filtering (2)
to the signal evaluation (3), which drives the output amplifier (4). Fed by smoothing, the
output amplifier provides a load-independent current IA proportional to the input value IE
or UE. The protective circuit (5) protects the output against no-load and transient
overvoltage.
With an alternating voltage transducer with expanded end range, the expansion circuit
(6) of the measuring range is adjusted
5 Overview circuit diagram
1
Transformer
2
Rectification, filtering
3
Signal evaluation
4
Output amplifier
5
Protective circuit
6
Expansion circuit