Rtd Sensor Temperature Range

The curve describes the resistance vs temperature characteristics of a platinum 100 ohm sensor the standardized tolerances and the measurable temperature range.

Rtd sensor temperature range.

For platinum is used the range is up to 660 0 c. This depends on the material of the wire used in the sensor. A wide temperature range approximately 200 to 850 c good accuracy better than thermocouples good interchangeability long term stability. 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.

Each type of temperature sensor has a particular set of conditions for which it is best suited. Nickel is suitable for temperatures below 300 0 c. 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. The linear approximation of the resistance temperature relationship of the metals between 0 0 c.

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. 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. By selecting the proper elements and protective sheathing rtds can operate in a temperature range of 200 to 650 c 328 to 1202 f. Pyromation manufactures resistance temperature detectors and resistance thermometers for many industry applications.

When operated outside this temperature range the sensor accuracy might default to class b. Why use an rtd instead of a thermocouple or thermistor sensor. Resistance temperature relationship of metals. Note that iec 60751 specifies a maximum temperature range for each class.

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. The din standard specifies a base resistance of 100 ohms at 0 c and a temperature coefficient of 00385 ohm ohm c. For example a class a sensor equipped with a coiled rtd element must maintain the specified tolerance from 100 450 c. The relative change in resistance temperature coefficient.

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. Different combinations of metals can be used in building the thermocouples to provide different calibrations with different temperature ranges and sensor characteristics.