Selecting the sensor types 'Callendar-van-Dusen' or 'Polynomial RTD' improves the accuracy of the system or defines user-specific linearization of resistance
thermometers. A detailed description of the 'Callendar-van-Dusen' method and 'Polynomial RTD' linearization is provided in the Appendix to these Operating
Instructions.
The selection list of the sensor type is displayed depending on the PV unit. Example:
When selecting a resistance thermometer the PV unit must first be set to Ω.
Sensor 1 has priority, sensor 2 setup is matched to the setup of sensor 1.
Example: Sensor 1 is set up for a 4-wire connection, sensor 2 is set up for a 3-wire
connection; there is an automatic change of sensor 2 to a type K thermocouple.
Sensor
Input of RTD connection mode.
connection
Input:
• 2-wire
• 3-wire
• 4-wire
Function is only active on selection of a resistance thermometers (RTD) in the