Chongqing Duchin Temperature Instrument Co., Ltd. launches WRB01 series Type B precious metal thermocouple, also known as double platinum-rhodium thermocouple with Type B graduation.Designed for ultra-high temperature industrial and scientific research scenarios, it features high stability and long service life, solving accurate temperature measurement problems up to 1600℃ and providing reliable temperature monitoring solutions for high-temperature furnaces and vacuum equipment.
1. Ultra-wide Temperature Range & High Precision
WRB01 Type B thermocouple adopts platinum-rhodium 30-platinum-rhodium 6 alloy wire as temperature sensing element.Long-term working temperature reaches 1600℃, and the short-term maximum measuring temperature is up to 1700℃.It is perfectly applicable to industrial oxidation furnaces, vacuum heat treatment furnaces and other ultra-high temperature occasions.It meets Class II precision with tolerance of ±1.5℃ or ±0.25%|t|.Thermoelectric drift is extremely small under high temperature, maintaining stable and accurate measurement for long-term operation.
2. Reliable Structure for Complex Working Conditions
The protection tube is made of 99 high-purity corundum (alumina ceramic), featuring high temperature resistance, thermal shock resistance and corrosion resistance without impurity pollution.It works stably in oxidizing and inert atmosphere, and can be used in vacuum environment for short term. Not allowed for reducing atmosphere.
Compared with Type S/R single platinum-rhodium thermocouple, the double platinum-rhodium structure owns stronger anti-pollution performance, greatly extending service life and reducing equipment maintenance cost.
3. Customized Service for Multiple Applications
WRB01 series supports full customization.Standard length of model WRB01-001KR2 is 180mm.Custom length and mounting method are available according to equipment requirements, suitable for scientific laboratories and industrial high-temperature furnaces for fast installation and application.
Core Parameters(WRB01-001KR2)
| Item | Specification |
|---|---|
| Product Name | Type B Precious Metal Thermocouple (Double Platinum-Rhodium Thermocouple) |
| Model | WRB01-001KR2 |
| Graduation | Type B (Platinum-Rhodium 30 - Platinum-Rhodium 6) |
| Precision Class | Class II |
| Temperature Range | 0~1700℃ (Recommended long-term: 600~1700℃) |
| Standard Length | L=180mm (Customizable) |
| Protection Tube | 99 High Purity Corundum (Alumina Ceramic) |
| Application Environment | Oxidizing atmosphere, inert atmosphere, short-term vacuum use. Prohibited in reducing atmosphere. |
Application & Industry Value
WRB01 Type B precious metal thermocouple is widely used in metallurgy, ceramics, chemical industry and scientific research.Ideal for high-temperature sintering furnaces, vacuum heat treatment equipment and laboratory high-temperature furnaces.
With excellent oxidation resistance and stability, it realizes precise process temperature control, reduces defective products caused by temperature deviation, lowers equipment maintenance frequency and improves overall production efficiency.
Chongqing Duchin Temperature Instrument has been focusing on industrial temperature measurement solutions for global customers.The launch of WRB01 Type B thermocouple further improves the product layout in ultra-high temperature measurement field.The company will continue to launch customized and high-performance temperature measuring products to support efficient and safe production in various industries.

