RTD Sensor Accuracy and Tolerance Standards - Thermometrics …
The industry standard for platinum RTD's according to IEC-751 is + /- 0.12% (of resistance) at 0°C, commonly referred to as Class B accuracy. This will provide an accuracy of + /- 0.3°C at 0°C, which is quite good if you compare it to the + /- 2.2°C of a standard Type J or K thermocouple.
IEC 60751:2022
IEC 60751:2022 specifies the requirements, in addition to the resistance versus temperature relationship, for both industrial platinum resistance thermometers (later referred to as "thermometers") and industrial platinum resistance temperature sensors (later referred to as "platinum resistors") whose electrical resistance is derived from ...
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées. Le contenu technique des …
What is RTD Accuracy ? | Resistance Thermometer Accuracy
The most common standard used for grading Platinum RTDs is IEC 751 (1995). IEC 751 defines two performance classes for 100Ω Platinum RTDs with alpha 0.00385, Class A and Class B, as follows: Note: The expression for Resistance Tolerance is only applicable to α=0.00385 Pt RTDs.
RTD Technical Data: - Tempco
IEC publication 751 issued by the International Electrotechnical Commission (dated 1983). This is the widest international scope of any RTD standard.
Where [t] is the temperature value in °C.
IEC 751 describes Industrial Platinum Resistance Thermometer Sensors. The Standard covers thermometers suitable for all or part of the temperature range -200ºC to +850ºC with two tolerance classes.
JIS C 1604 completely conform to IEC-751. The major changes are as follows. (1) JIS for Resistance thermometer sensors is uniformed to JIS C 1604 (Resistance thermometer sensors) and JIS C 1606 (Sheathed resistance thermometer sensors) is abolished. (2) Reference resistance table is revised to conform to IEC standard. In the new JIS,
IEC 751 respectively EN 60751 describe the requirements placed on industrial platinum measuring resistors whose electrical resis-tance is a function of the temperature. These standards apply for the temperature range of -200 to 850 °C and ensure inter-national comparability as well as the exchange of resistance thermometers. They
W A TLO W 1 Reference Data Resistance vs. Temperature Table for DIN-IEC-751 Platinum RTDs-200 18.52 -200-190 22.83 22.40 21.97 21.54 21.11 20.68 20.25 19.82 19.38 18.95 -190
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