R Type Thermocouple Temperature Sensor
Type R thermocouple is the PtRh13-Pt thermocouple, it also used as a temperature transmitter, in general, type R thermocouple is connected with the display instrument, record instrument and computer by RC compensation cable. It can be directly measured temperature of the gas, liquid , melting liquid and solid surface in various production process. Now the type R thermocouple have three forms: assembly thermocouple, sheathed thermocouple , assembly and sheathed combined thermocouple.
Main technology index
Temperature range and tolerance
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Name
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Calibration
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Tolerance
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PtRh10-Pt
WRP or WRPK
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R
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Class l
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Class ll
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Tolerance
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Temperature range° C
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Tolerance
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Temperature range° C
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± 1° C or ± (1+(t-1100)× 0.003)
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0~1400
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± 1.5° C or ± 0.25%|t|
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0~1400
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Thermal response time ( type R assembly thermocouple)
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Diameter of protection tube mm
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Material of protection tube
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Thermal response time S
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16
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Non-metal
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≤ 240
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25
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Non-metal
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≤ 300
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Thermal response time ( type R sheathed thermocouple)
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Thermal response time t0.5S
Thermowell Diameter(mm)
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Shell-connecting type
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Insulation type
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3.0
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0.6
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2.0
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4.0
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0.8
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2.5
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5.0
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1.2
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4.0
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6.0
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2.0
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6.0
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8.0
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4.0
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8.0
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Max temperature of type R thermoeouple wire
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Thermocouple wire diameter mm
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Recommended Max temperature ° C
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0.5
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1500
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1) Strong junction box to enclose parts that might produce sparks,
electric arc, and dangerous high temperatures
2) When explosions within the box occur, fire and high temperatures
caused by explosion are extinguished and cooled within the gap
3) Various explosion-proof types are available
4) Good explosion proof performance
5) Spring thermal element with good shockproof performance
6) Wide measuring range
electric arc, and dangerous high temperatures
2) When explosions within the box occur, fire and high temperatures
caused by explosion are extinguished and cooled within the gap
3) Various explosion-proof types are available
4) Good explosion proof performance
5) Spring thermal element with good shockproof performance
6) Wide measuring range