Resistance temperature relationship of metals.
Rtd sensor temperature range.
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.
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 linear approximation of the resistance temperature relationship of the metals between 0 0 c.
This depends on the material of the wire used in the sensor.
When operated outside this temperature range the sensor accuracy might default to class b.
For platinum is used the range is up to 660 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.
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.
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.
The curve describes the resistance vs temperature characteristics of a platinum 100 ohm sensor the standardized tolerances and the measurable temperature range.
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.
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.
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.
Rtds offer several advantages.
Each type of temperature sensor has a particular set of conditions for which it is best suited.
Note that iec 60751 specifies a maximum temperature range for each class.
Pyromation manufactures resistance temperature detectors and resistance thermometers for many industry applications.
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The relative change in resistance temperature coefficient.
