Connection of sensors with measuring amplifiers
Sensors with sense wires
If the measuring amplifier has only 4 wires for the sensor, you can
- leave the the sense wires unconnected,
- connect the sense wires in parallel with the excitation wires.
The parallel connection of sense wires and excitation wires is better, because
- The line resistance for excitation wires is reduced,
- The interference immunity is increased (no open lines).
Sensors without sense wires
If the measuring amplifier has a sense wire input, you must install a connection between
- positive excitation and positive sense wire and
- negative excitation and negative sense wire.
For all measuring amplifiers "GSV" of ME-Meßsysteme GmbH, the connection may be omitted, since internallya high-resistance connection is already given.