SIMEAS-T - Transducer without auxiliary power
9
4 Operating principle
The transformer (1) transfers the input signal I
E
or U
E
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 I
A
proportional to the input value I
E
or U
E
. 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
