I. Product Overview The ultra-thin patch-type K-type thermocouple is a high-performance temperature measurement device specifically designed for precise surface temperature measurement. It operates based on the thermoelectric effect principle, utilizing a nickel-chromium alloy as the positive electrode and a nickel-silicon alloy as the negative electrode, which are welded together through professional processes to form the temperature measurement end. The product adopts an ultra-thin patch structure, allowing it to closely adhere to the surface of the object being measured. It is suitable for surface temperature detection in various scenarios such as industrial equipment monitoring, refrigeration and cold storage systems, process control, wave soldering, reflow soldering, and more. It particularly excels in special measurement environments such as narrow gaps and thin plate layers.
I. Product Overview The ultra-thin patch-type K-type thermocouple is a high-performance temperature measurement device specifically designed for precise surface temperature measurement. It operates based on the thermoelectric effect principle, utilizing a nickel-chromium alloy as the positive electrode and a nickel-silicon alloy as the negative electrode, which are welded together through professional processes to form the temperature measurement end. The product adopts an ultra-thin patch structure, allowing it to closely adhere to the surface of the object being measured. It is suitable for surface temperature detection in various scenarios such as industrial equipment monitoring, refrigeration and cold storage systems, process control, wave soldering, reflow soldering, and more. It particularly excels in special measurement environments such as narrow gaps and thin plate layers.
II. Core Technical Parameters Temperature Measurement Range Standard Model: -40℃~200℃, suitable for surface temperature measurement in normal and medium-low temperature environments, such as electronic components and ordinary industrial equipment surfaces. High-Temperature Model: -40℃~480℃, capable of meeting the temperature measurement needs of high-temperature processes such as wave soldering and reflow soldering. Some Imported Models: Maximum temperature resistance up to 215℃ (such as the American Omega 88303K model), and special magnetic models with a maximum temperature measurement up to 400℃ (such as the American Omega 88402K model). Accuracy Indicators Industry Standard Accuracy: Level I accuracy is ±0.4%t, Level II accuracy is ±0.75%t (t represents the measured temperature value). High-End Customized Accuracy: Some domestic brand products achieve temperature measurement accuracy up to ±0.5℃, with repeatability error ≤0.2%, annual stability drift ≤0.5℃, far exceeding the requirements of the IEC 60584-1:2023 Amendment 1 international standard. Thermoelectric Characteristics The thermoelectric potential is approximately 0.041mV/℃, with high sensitivity and good linearity of thermoelectric characteristics, enabling rapid response to temperature changes and ensuring that the measured data accurately reflects the temperature of the object being measured. III. Product Specifications and Structure Physical Dimensions Thickness: Ultra-thin design, with a thickness as low as 0.15mm (such as the American Omega 88304K model), easily fitting various complex curved surfaces and narrow gaps. Length: Multiple specifications are available, including fixed lengths of 4 inches, 4.4 inches, 19 inches (approximately 48cm), and customizable cable lengths from 0.5m to 5m, suitable for different installation environments and usage requirements. Probe Structure: Thin-film probe, with a solder joint flattening process to increase the contact area, enhancing the fit with the object being measured and ensuring measurement stability. Some models adopt a six-sided clamping structure for stronger adhesion. Material Composition Thermoelectric Electrode: Nickel-chromium-nickel-silicon alloy material, with good high-temperature oxidation resistance, suitable for oxidizing or neutral medium environments. Outer Skin and Insulation Layer: The standard model uses a glass fiber outer skin with yellow and red glass fiber insulation layers, providing high temperature resistance and good insulation performance; some imported models use a 0.8mm PFA sheath, with excellent chemical corrosion resistance. Connection End: The tail end is equipped with a pin, facilitating connection to various temperature measurement instruments; Some models are equipped with OMEGA's OST series standard-sized connectors and TAS-2 standard-micro-mini adapters to enhance connection compatibility.
IV. Product Types and FeaturesThe conventional adhesive type adopts a design that allows for immediate attachment upon tearing. Simply tear off the transparent film on the surface and it can be pasted onto the surface of the object being measured, providing convenient and quick fixation. It is suitable for long-term monitoring of the surface temperature of static objects. The shock-resistant and bend-resistant type is designed for complex working conditions, featuring excellent shock and bend resistance. It can effectively handle harsh conditions such as vibration and impact, enhancing product durability and service life. It is suitable for dynamic scenarios such as mechanical equipment and industrial production lines. The magnetic adsorption type, such as the American Omega 88401K and 88402K models, has a built-in magnetic structure that allows for quick adsorption onto the surface of metal objects being measured. It is convenient to install and remove, making it suitable for scenarios where frequent changes in measurement positions are required.
V. Applicable Environment and Precautions Applicable Environment Working Medium: Suitable for oxidizing or neutral medium environments. In reducing media, it can only be used for temperature measurement below 500℃, otherwise corrosion is likely to occur. Environmental Conditions: Can operate under certain vibration and impact conditions, with stronger shock and bending resistance; some models have splash-proof and waterproof performance, suitable for wet and water-rich work environments. Precautions During installation, ensure that the probe is tightly fitted to the surface of the object being measured to avoid air gaps affecting measurement accuracy. Avoid using in strong electromagnetic interference environments, and take shielding measures if necessary. Regularly calibrate the product to ensure measurement accuracy meets requirements; after use in high-temperature environments, allow the product to cool naturally to avoid damage to the probe from sudden cold and heat changes.
VI. Brand and Quality Assurance Domestic brands, represented by Suzhou Jingmin, allocate 8% of their annual revenue to core technology research and development. They have established joint laboratories with research institutions such as the Institute of Metal Research, Chinese Academy of Sciences, and Shanghai Jiao Tong University. They have obtained a total of 23 patents related to K-type thermocouples, including 8 invention patents. Their products have a lifespan 40% longer than the industry average, with stable and reliable performance. International brands, represented by Omega from the United States, offer a range of mature ultra-thin patch-type K-type thermocouple products with various models and exquisite craftsmanship. They have a high reputation and market share in the global industrial temperature measurement field. The above specification booklet details the core information of ultra-thin patch-type K-type thermocouples, covering product overview, technical parameters, specifications and structure, type characteristics, applicable environments, and brand guarantees. It provides a comprehensive reference for product selection, use, and maintenance. You can adjust and supplement some parameters or content according to your actual needs.
