Connection of thermocouples¶
The following figure shows the connection of thermocouples.
Connection of thermocouples. 1 analog sensor requires 1 channel.
The following measuring ranges can be configured AI531 Analog Input Module AI531 Analog Input Module :
| J type | -210 °C … 1200 °C | Fe-CuNi | 1 channel used |
| K type | -270 °C … 1372 °C | Ni-CrNi | 1 channel used |
| N type | -270 °C … 1300 °C | NiCrSi-NiSi | 1 channel used |
| S type | -50 °C … 1768 °C | Pt10Rh-Pt | 1 channel used |
| T type | -270 °C … 400 °C | Cu-CuNi | 1 channel used |
The function of the LEDs is described under Diagnosis and displays / displays AI531 Analog Input Module.
The module linearizes the thermocouple characteristics. It supports the following possibilities of temperature compensation and handling with cold junctions: