Type R Thermocouple - Technical Information
Type R - Platinum-13% Rhodium vs Platinum, IEC 60584-1
Thermocouple Type R is similar to the Type S combination, this thermocouple has the advantage of slightly higher output and improved stability. In general Type R thermocouples are preferred over Type S, and applications covered are broadly identical.
Type R Thermocouples - Typical Constructions and Styles
Type R Mineral InsulatedThermocouples


Thermocouples

Thermocouples

Type R Thermocouples

Type R - Technical Data
Conductor Combination | Approximate generated EMF change in µV per ºC change (referenced to 0ºC) at: |
Approximate Working Temperature Range |
Initial Calibration Tolerances to ASTM E-230 (whichever is greater) |
Thermocouple Output Tolerances to IEC 60584-1 |
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+ Leg | - Leg | 100ºC | 500ºC | 1000ºC | ºF | ºC | Standard | Special | Type | Class 1 | Class 2 | Class 3 |
PLATINUM -
13% RHODIUM |
PLATINUM |
8 | 10 | 13 | 32 to 2700 | 0 to 1480 | ±1.5 or ±0.25% | ±0.6 or ±0.1% | Temperature Range Tolerance Value Temperature Range Tolerance Value |
0°C to +1100°C ±1.0°C 1100°C to 1600°C ±(1 +0.003 (t ⋅ 1100)°C |
0°C to +600°C ±1.5°C 600°C to 1600°C ±0.0025 ⋅ |t| |
– – – – |
1. The tolerance is expressed either as a deviation in degrees Celsius or as a function of the actual temperature.
2. Thermocouple materials are normally supplied to meet the tolerances specified in the table for temperatures above –40 deg C. These materials however, may not fall within the tolerances for low temperatures given under Class 3 for Types T, E and K thermocouples. If thermocouples are required to meet limits of Class 3, as well as those of Class 1 and/or Class 2, the purchaser should state this, as selection of materials is usually required.
2. Thermocouple materials are normally supplied to meet the tolerances specified in the table for temperatures above –40 deg C. These materials however, may not fall within the tolerances for low temperatures given under Class 3 for Types T, E and K thermocouples. If thermocouples are required to meet limits of Class 3, as well as those of Class 1 and/or Class 2, the purchaser should state this, as selection of materials is usually required.
Thermocouple Wire Color Codes for R Type Thermocouples
ANSI MC96.1 United States | International
Color Code to IEC 60584-3 |
Redundant national colors | ||
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Thermocouple Grade | Extension Grade | BS 1843 | DIN 43714 | - | ![]() | ![]() | ![]() | - |
Please click here for all thermocouple wire color codes.