WR□ series assembled thermocouple
Assembled thermocouple with protection tube, measuring gas, liquid and solid surface temperatures from -40 to 1600°C, with various fixing devices and terminal head configurations.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The WR series assembled thermocouples measure the temperature of gases, liquids and fixed surfaces over the range -40 to 1600°C, and are widely used in non-explosion-proof areas of the aviation, nuclear, petroleum, chemical, metallurgical, mechanical and other industrial sectors and scientific fields. The product generally consists of a temperature-sensing element, protection tube, terminal head and mounting fixture, with a choice of types, protection tube materials and mounting styles to suit the application.
| Parameter Name | Technical Specifications |
|---|---|
| Basic Parameters | |
| Measurement Range | -40 to 1600°C (depending on type and protection tube material) |
| Graduation | K / N / E / J / T / S / R / B |
| Wire diameter | 0.2 to 3.2 mm |
| Structural composition | Temperature-sensing element, protection tube, terminal head, mounting fixture |
| Long-term operating temperature | |
| Type K / N | -40~1200℃ |
| Type E | -40~750℃ |
| Type J | -40~600℃ |
| Type T | -40~350℃ |
| Type S / R | 0~1300℃ |
| Type B | 600~1600℃ |
| Tolerance and response | |
| Class I tolerance (K/N/E/J) | ±1.5℃ or ±0.4%|t| |
| Class II tolerance (K/N/E/J) | ±2.5℃ or ±0.75%|t| |
| Class I tolerance (T) | ±0.5℃ or ±0.4%|t| |
| Class II tolerance (T) | ±1℃ or ±0.75%|t| |
| Response time T0.5 | Φ16 metal ≤180s; Φ16 non-metal / Φ20 metal ≤240s; Φ25 non-metal ≤300s |
| Insulation resistance at room temperature | ≥100 MΩ (15–35°C, RH≤80%, 500±50V DC) |
| Standards | |
| Chinese national standard | GB/T 30429-2013 |
| Chinese industry standard | JB/T 8205-1999 |
- Wide measuring range, long service life, easy to install and use
- Poor vibration resistance; calibration characteristics may drift with long-term use
- Comprises temperature-sensing element, protection tube, terminal box and mounting fixture; flexible selection combinations
- Suitable for temperature measurement of gases, liquids and fixed surfaces in non-hazardous areas
Temperature measurement of piping and equipment in petrochemical plants
Continuous temperature measurement of gases, liquids and fixed equipment surfaces in non-hazardous areas of petroleum and chemical plants; graduation, protection tube material and mounting fixture selected according to operating conditions.
High-temperature measurement in metallurgy and machinery
Process temperature measurement in aviation, nuclear, metallurgy, machinery and other industries over the range -40–1600°C, with various terminal box types.
Need selection advice or bulk quotation?
Send us the working condition parameters (signal type, medium, range, pressure, temperature, connection method), and our engineers will provide a selection scheme and quotation within 1 working day.
- Phone consultation +86-21-66020232
- Email inquiry web@qishan-sh.com



