Rtd Sensor Temperature Range

Each type of temperature sensor has a particular set of conditions for which it is best suited.

Rtd sensor temperature range.

By selecting the proper elements and protective sheathing rtds can operate in a temperature range of 200 to 650 c 328 to 1202 f. A wide temperature range approximately 200 to 850 c good accuracy better than thermocouples good interchangeability long term stability. For platinum is used the range is up to 660 0 c. The rtd pt100 and pt1000 are available in a similar range of tolerances and both can have similar temperature coefficients depending on the purity of the platinum used in the sensor.

Common rtd sensing elements constructed of platinum copper or nickel have a repeatable resistance versus temperature relationship r vs t and operating temperature range the r vs t relationship is defined as the amount of resistance change of the sensor per degree of temperature change. Rtds offer several advantages. Home products temperature sensors resistance temperature detectors rtd resistance temperature detectors rtd understanding an application s performance requirements such as operating temperatures accuracy and repeatability demands material compatibility issues and environmental conditions are crucial to designing the best rtd temperature sensor solution. Resistance temperature relationship of metals.

This depends on the material of the wire used in the sensor. Thermocouples are temperature sensors that use two different metals in the sensor to produce a voltage that can be read to determine the local temperature. For example a class a sensor equipped with a coiled rtd element must maintain the specified tolerance from 100 450 c. Note that iec 60751 specifies a maximum temperature range for each class.

Nickel is suitable for temperatures below 300 0 c. Why use an rtd instead of a thermocouple or thermistor sensor. When comparing the pt100 vs pt1000 in terms of resistance keep in mind that resistance value readings for the pt1000 will be higher by a factor of ten than. Different combinations of metals can be used in building the thermocouples to provide different calibrations with different temperature ranges and sensor characteristics.

From the temperature of 0 0 c up to a temperature value where the change is linear is considered as the temperature range of the sensor. When operated outside this temperature range the sensor accuracy might default to class b. Rtd sensor class a thin film din platinum 73 c 260 c 100 ohm sa1 rtd series check stock lead times 56 in stock for same day shipping. Order before 8pm est standard shipping mon fri.

The din standard specifies a base resistance of 100 ohms at 0 c and a temperature coefficient of 00385 ohm ohm c. The linear approximation of the resistance temperature relationship of the metals between 0 0 c.