Application

I. Core Parameters

Parameter Category	Specific Specifications / Parameter Values
Model Type	Type S, Type R
Wire/Mineral Insulated Cable Diameter	φ0.35~0.5mm
Operating Temperature Range	0~1000℃
Measurement Accuracy	±1.0℃
Protection Tube Length	150~250mm
Protection Tube Diameter	φ4~6mm
Protection Tube Material	Corundum
Hot Junction Structure	Exposed Type
Number of Measuring Points	Single-point Measurement
Wiring Method	Small Connector
Compensation Wire Specification	SC-2×0.5FPF
Structural Feature	Detachable, Moderate Assembly Difficulty

II. Product Features

Reliable and Accurate Temperature Measurement: With a measurement accuracy of ±1.0℃ and excellent data stability, it provides a reliable basis for equipment temperature control and prevents production process disruptions caused by temperature deviations.

Fast Thermal Response: The exposed hot junction design combined with optimized component layout enables rapid temperature change detection, suitable for dynamic temperature measurement scenarios.

Strong Environmental Adaptability: It has resistance to high and low temperature shocks and electromagnetic interference. The corundum protection tube offers excellent high temperature and corrosion resistance, extending the product service life under harsh working conditions.

Practical Structural Design: The detachable structure facilitates later maintenance and replacement. Equipped with small connectors, it enables convenient wiring and adapts to limited equipment installation spaces.

Customized for Specific Scenarios: Designed exclusively for temperature measurement of photovoltaic equipment furnaces, the single-point measurement mode accurately matches the temperature sensing requirements of furnace tube outer surfaces.

III. Related Component Specifications

Thermocouple Core

Model: Type S and Type R noble metal thermocouple cores, ensuring temperature measurement accuracy and stability in high-temperature environments.

Wire Specification: Diameter φ0.35~0.5mm, with material optimized for noble metal thermocouple characteristics and excellent electrical conductivity.

Protection Tube

Material: Corundum, featuring high temperature and corrosion resistance, suitable for the operating temperature range of 0~1000℃.

Dimensions: Length 150~250mm, diameter φ4~6mm, balancing protective performance and installation flexibility.

Connection Components

Terminal Block: Small Connector, compact in size, easy for wiring, and with stable contact performance.

Compensation Wire: Specification SC-2×0.5FPF, effectively compensating for temperature loss and ensuring accurate temperature data transmission.

Installation Auxiliary Parts

Mounting clips adapted to photovoltaic equipment furnaces, ensuring tight contact between the protection tube and furnace tube outer surface to improve temperature measurement accuracy.

Detachable fixed structure, facilitating component disassembly and maintenance.

IV. Application Scenarios

This product is mainly used for temperature monitoring of photovoltaic cell production equipment, with core applications including:

Photovoltaic Cell Manufacturing: Temperature sensing of furnace tube outer surfaces in diffusion furnaces, oxidation furnaces and other equipment, indirectly monitoring internal furnace temperature to ensure temperature stability of processes such as texturing, diffusion, oxidation, lithography, coating and sintering.

Semiconductor Manufacturing: Adapting to external temperature monitoring of similar high-temperature furnaces in the semiconductor industry, providing temperature references for precision manufacturing processes.

Specialized Equipment Temperature Measurement: Serving photovoltaic and electronic equipment of enterprises such as LONGi, JET Solar and Han's Laser, used for temperature control and monitoring of specialized high-temperature furnaces.

V. Product Advantages

Strong Scenario Specificity: Designed exclusively for external temperature measurement of photovoltaic equipment furnace tubes, perfectly adapting to the working environment and temperature measurement requirements of diffusion furnaces, oxidation furnaces and other equipment.

Stable and Reliable Performance: Featuring high accuracy, fast response, anti-interference capability and resistance to high-low temperature shocks, it has a long service life and reduces replacement frequency.

Convenient Installation and Maintenance: The detachable structure facilitates later inspection and component replacement. Small connectors and matched wires simplify the wiring process.

Guaranteed Quality: Produced by manufacturers with mature thermocouple manufacturing technology, the product undergoes strict testing and has been applied in many well-known photovoltaic enterprises with abundant application cases.

Complete Supporting Facilities: Equipped with dedicated compensation wires, it effectively reduces temperature transmission loss and ensures full-link temperature measurement accuracy.

VI. Frequently Asked Questions (FAQs)

What is the core difference between Type R external thermocouple and ordinary thermocouples?

Answer: The core difference lies in scenario adaptability and structural design. This product is specially designed for external temperature measurement of photovoltaic equipment furnace tubes, adopting an exposed hot junction, small connectors and corundum protection tube to accurately match the external temperature measurement needs of high-temperature furnaces. Ordinary thermocouples are mostly general-purpose with weak scenario specificity.

Why is corundum selected as the protection tube material?

Answer: Corundum has excellent high-temperature resistance (suitable for the operating temperature range of 0~1000℃) and corrosion resistance, as well as high mechanical strength. It can effectively protect the internal thermocouple core from high-temperature and environmental erosion of the furnace, extending the product service life.

What is the function of the compensation wire? Can it be replaced with ordinary wire?

Answer: The compensation wire (SC-2×0.5FPF) is used to compensate for the temperature difference between the thermocouple and the temperature measuring instrument, ensuring accurate temperature data transmission. It cannot be replaced with ordinary wire, otherwise the temperature measurement error will increase due to temperature loss, affecting process stability.

The product has moderate assembly difficulty. What are the installation precautions?

Answer: During installation, ensure tight contact between the protection tube and the furnace tube outer surface to avoid temperature measurement accuracy reduction caused by gaps; during wiring, correctly connect through small connectors to ensure no reverse connection of positive and negative poles; after disassembly and maintenance, check that the exposed part of the hot junction is undamaged and the protection tube has no cracks before reassembly.

What about the product quality guarantee and after-sales support?

Answer: The product is manufactured by professional manufacturers with a complete quality inspection system and provides corresponding quality assurance services. Professional technical consulting support is available for technical problems during installation and use. Meanwhile, customized adaptation solutions can be provided according to the specific equipment requirements of customers.