Product Overview
As the most widely used industrial temperature detection element globally, our K Type Thermocouple is engineered based on the Seebeck effect, delivering reliable temperature measurement across an ultra-wide range. Composed of high-purity nickel-chromium and nickel-silicon alloy wires, this thermocouple generates stable thermoelectromotive force proportional to temperature differences, ensuring accurate data for your industrial processes. It is perfectly compatible with display instruments, recorders, and electronic regulators, making it an essential component for temperature control systems in various industries.
Core Technical Advantages
1. Ultra-Wide Temperature Range & High Precision
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Measurement Scope: -40℃ to 1200℃ continuous measurement; covering most industrial temperature needs from cryogenic to high-temperature scenarios .
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Accuracy Standard: Conforms to international standards, with measurement error controlled within ±2.5℃ or ±0.75% of reading (whichever is larger), ensuring reliable data support for precision processes .
2. Premium Materials for Durability
- Thermocouple Wires: High-purity alloy wires (diameter 1.2mm-3.2mm optional) with stable resistivity, ensuring consistent performance even after long-term use .
- Protection Tube Options:
304 stainless steel : corrosion-resistant and suitable for general industrial environments;
Ceramic tube : excellent high-temperature resistance for furnace and smelting applications;
316L stainless steel : enhanced acid and alkali resistance for chemical scenarios.
- Insulation System: Filled with high-density magnesium oxide powder, maintaining insulation resistance ≥0.5MΩ (100V) at 93±3℃ relative humidity, and ≥5000Ω at 1000℃ for safe operation .
3. Fast Response & Stable Signal
- Rapid Temperature Sensing: The welded measurement junction features minimal thermal inertia; bare-type models achieve a time constant is low, while protected versions respond 3-5 times faster than PT100 sensors .
- Anti-Interference Design: The enclosed structure and metal shielding layer reduce electromagnetic interference, ensuring stable signal transmission even near motors or frequency converters.
- Oxidation Resistance: Exceptional antioxidant performance in oxidizing and inert atmospheres, with no performance degradation of high-temperature operation .
4. Versatile Installation & Strong Adaptability
- Multiple Fixation Types: Available in 6 installation styles to match different application scenarios:
-No fixed device type: flexible for temporary measurement;
-Fixed thread type: secure installation on pipes and containers;
-Movable flange type: easy disassembly for maintenance;
-Fixed flange type: stable for high-pressure environments;
-Right-angle movable flange type: suitable for narrow spaces;
-Fixed threaded conical type:for embedded measurement .
-Fixed flange conical type: for embedded measurement .
- Wiring Box Options:
Waterproof type : ideal for outdoor or water-prone areas;
Anti-spray type : for humid environments like food processing plants;
Explosion-proof type : certified for flammable and explosive sites such as oil refineries .
Product Specifications
| Parameter | Details |
|---|---|
| Model | K type Series (compatible with international standard) |
| Thermocouple Wire Material | Positive: Nickel-Chromium (KP); Negative: Nickel-Silicon (KN) |
| Measurement Range | -40℃ ~ 1200℃ (continuous); higher for short-term |
| Accuracy Class | Class A / Class B (optional) |
| Protection Tube Material | 304 SS, 316L SS, Ceramic,Other customed |
| Wire Diameter | 1.2mm~3.2mm (customizable) |
| Insulation Resistance | ≥0.5MΩ (100V, 93±3℃ RH); ≥5000Ω (1000℃) |
| Certification | CE, RoHS, ISO9001 |
Typical Application Scenarios
Industrial Furnaces: Temperature monitoring in heat treatment furnaces, annealing furnaces, and sintering furnaces (up to 1200℃).
Mechanical Manufacturing: Measuring temperatures of engine parts, mold surfaces, and welding joints.
Chemical Industry: Monitoring reaction kettle temperatures in oxidizing atmospheres (with protection tube).
Power Sector: Temperature detection of transformers, cable joints, and boiler pipes.
Food Processing: Oven and sterilization equipment temperature control (compatible with food-grade standards).
Cryogenic Fields: Low-temperature measurement in refrigeration systems and cold storage (-40℃ to 0℃,custom type can reach -200℃ to 0℃) .
Why Choose Our K Type Thermocouple?
Cost-Effective Solution: As the most economical noble-metal alternative, it offers performance comparable to high-end sensors at 20~60% of the cost, with usage volume exceeding the sum of other thermocouple types .
Customization Capabilities: Support personalized customization of wire length , protection tube diameter , and connection (terminal block or connector), fully matching your equipment requirements.
Reliable Quality Assurance: Each unit undergoes 8 strict tests (including insulation resistance, temperature cycling, and mechanical shock) before delivery, with a 12-month warranty and lifetime technical support.
Professional Compatibility: Equipped with dedicated compensation wires and junction boxes, ensuring seamless integration with your existing systems without additional adapters.
Packing & Delivery
Packing: Anti-static bubble bag + carton (with shock-absorbing foam for bulk orders) to prevent transportation damage.
Delivery Time: 7-10 working days for standard models; 10-25 working days for customized models.
Shipping: We use UPS, DHL, FedEx, EMS, TNT or the shipping agent as your request., with tracking number provided immediately after shipment.
FAQ
Q: Can it be used in reducing atmospheres?
A: It is recommended for oxidizing and inert atmospheres. For reducing or alternating oxidizing-reducing environments, please choose our specially coated K type thermocouple (customizable).
Q: How to achieve accurate cold-end compensation?
A: Our thermocouple can be paired with a dedicated cold-end compensator or connected to a transmitter with built-in compensation function, ensuring measurement accuracy without manual correction.
Q: What is the maximum insertion depth for pipe measurement?
A: The insertion depth should be at least 8~10 times the diameter of the protection tube to ensure full contact with the measured medium. We can customize the length according to your pipe specifications.
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