PT100 temperature sensor 2/3/ 4 line connection method

PT100 temperature sensor The connection method of the three core wires

PT100 platinum resistor sensor has three leaders. ABC or Black Red Yellow Lai represents the following laws on behalf of the three lines and three lines.

A resistance between A and B or C is around 110 euros,

B and C are 0 Euros B and C. In principle, B and C are no different from C.

There are three fixed terminals of the sensor on the instrument,

A line connects a fixed terminal B and C on the meter to connect the other two fixed terminal B and C lines on the instrument, which can be switched but must be connected.

If the specifications and lengths of the three wires have three wires in the middle are the same.

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PT100 Sensor The 3 line and the 4 -line connection method of the thermal resistance uses the 2 line 3 line The second instrument is determined.

The general display instrument lifts a thread at one end of the P110, and two wires are produced on the other end.

General PLC is Four Line Each end two lines and two lines and two PLC output constant current sources,

PLC's voltage on the other two measured PT 100 is also to offset the wire resistance.

PT100 Sensor Four -line accuracy has the highest accuracy Third Line can also consider accuracy requirements and costs in the lowest specific usage of the two lines.