Platinum rhodium thermocouple, also known as high temperature precious metal thermocouple, platinum rhodium has s type (ptrh 10-pt),B type (ptrh 30-ptrh 6) and R type(ptrh13-pt) they are used as temperature measurement sensors, usually with temperature transmitters, regulators and display instruments and other supporting use, composed of process control system, It is used to directly measure or control the temperature of fluid, steam and gas medium and solid surface in the range of 0-1700℃ in various production processes.
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Product Name |
High temperature thermocouple probe |
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Thermoelement |
S,R or B type |
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Grade |
I or II class |
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Connection |
Standard connectors |
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Length |
Specify Total length and Immersion length |
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Diameter |
Specify OD |
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Tube |
99% Al2O3 |
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Temperature |
600~1700℃ |
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Patent design |
Detachable structure,easily for replacing |
Technical characteristics
Platinum rhodium is a traditional temperature measuring element, with stable thermoelectric performance, strong oxidation resistance, long-term use temperature of 1600℃, short-term use temperature of 1800℃. The 99 corundum protective sleeve is used outside, and the high purity platinum rhodium alloy wire is used inside, so that the temperature is high, the temperature measurement is accurate, and the precision is high.
When the measured temperature is normal at 1000~1300℃, it is recommended to use a single platinum-rhodium thermocouple (platinum-rhodium 10-platinum), and when the measured temperature is normal at 1200~1600℃, it is recommended to use double platinum-rhodium thermocouple (platinum-rhodium 30-platinum-rhodium 6), so that the service life of platinum-rhodium thermocouple can be guaranteed within the temperature range used.
Platinum Rhodium Thermocouple Conductor Combinations And Characteristics
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Type |
Thermoelement |
Temperature range ℃ |
Function Features |
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Advantages |
Disadvantages |
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S |
Ptrh10-Pt |
0~1600 |
Suitable for oxidation atmosphere. High precision, stability is not affected by using time.With oxidation resistance, chemical corrosion resistance, can be used as standard thermocouple. |
Not suitable for reducing atmosphere (especially H2, metal vapor) and vacuum environment, high cost. |
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R |
Ptrh13-Pt |
0~1600 |
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B |
Ptrh30-Ptrh6 |
600~1700 |
Suitable for more than 1000℃,with small thermoelectric, oxidation resistance and chemical corrosion resistance |
Can't be used below 600℃, low sensitivity. |
Platinum Rhodium Thermocouple Limit Of Error
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Thermoelement |
Type |
Limits Of Error(±℃)/Effective Temperature Range(℃) |
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1 class |
2 class |
3 class |
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Nobel Metal TC |
Ptrh10-Pt |
S |
1.0/600~1100 1+0.003(t-1100)/1100~1600 |
1.5 or 0.25%t/0~1600 |
-- |
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Ptrh13-Pt |
R |
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Ptrh30-Ptrh6 |
B |
-- |
1.5 or 0.25%t/600~1700 |
4.0 or 0.5%t/600~1700 |
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Product details
Shock-resistant packaging
Our Customers
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Manual Welding
Automatic Welding
Insulation Testing
Laser Marking
Warehouse Managing
Thermocouple Assemble
Vacuum Leak Detection
Surface Polishing
Quality Certifications
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