Variable input impedances

Different input impedances are required, depending on the sensor type and manufacturer. This information can be found in the respective sensor data sheet or can be obtained directly from the manufacturer.

The EL5072 provides three different input impedances for connecting various sensors. In each case the selection is made via the CoE configuration data (0x80n1:13 Sensor Impedance). The bridges are switched automatically.

The following diagrams show the terminal designations of the EL5072 as an example for channel 1.

High impedance / Mahrposs® impedance

Variable input impedances 1:
Block diagram of high input impedance / Mahrposs® (channel1)

Tesa® impedance

Variable input impedances 2:
Block diagram for Tesa® input impedance (channel 1)

Mahr® impedance

Variable input impedances 3:
Block diagram for Mahr® input impedance (channel 1)