General
Class	II

The SK15 TC probe from Chauvin Arnoux is a surface thermocouple K-type probe, specifically designed for precise temperature measurement on solid surfaces. It features a spring-loaded 8 mm tip that ensures a secure and constant contact area, preventing measurement errors caused by insufficient pressure. The probe is designed for use in environments where temperatures range from -50 °C to +900 °C, making it suitable for a wide range of industrial and technical applications. The construction with a handle and spiral cable allows for convenient handling and prevents tangling or strain on the cable, which could lead to measurement errors or damage.

Surface thermocouple K-type probe is the technical designation for the measurement principle based on thermoelectricity. K-type thermocouples consist of a copper-nickel alloy (contact material: Chromel-Alumel), which generates a measurable voltage when there is a temperature difference. This voltage is converted into the corresponding temperature value. The probe is classified as a Class II sensor, meaning it is suitable for use in non-hazardous environments and does not require special protective measures, provided electrical safety standards are met.

Functions and equipment in detail

The SK15 is equipped with compensated miniature connectors that ensure a secure and reliable electrical connection to the measuring device. These connectors are replaceable, simplifying maintenance and repair of the probe. The spring-loaded tip ensures stable contact even on slightly uneven surfaces, enhancing measurement accuracy. The spiral cable prevents mechanical stress and allows flexible movement without cable twisting.

Technology explained simply

Thermocouple technology uses the Seebeck effect, in which a temperature gradient between two different metals generates an electrical voltage. The probe converts this voltage into a temperature value, which is then displayed or logged by the connected device (e.g., thermometer or data logger). The spring loading ensures that the contact area remains constant, regardless of minor vibrations or movements. The materials used are designed for use over a wide temperature range, with the maximum temperature of 900 °C representing the limit for material stability.

Compatibility and accessories

The SK15 is compatible with thermometers CA 861, CA 863, TK 2000, and TK 2002, as well as the data logger L642. These devices are designed for use with thermocouples and can directly process the signals generated by the probe. Additionally, the probe can be used as an accessory with multimeters, provided an appropriate adapter is available. Using the probe with multimeters requires setting the measurement mode correctly to thermocouple K-type.

Installation and mounting

The SK15 is installed by direct contact with the surface to be measured. The spring-loaded tip ensures a secure pressing force. The spiral cable allows flexible positioning of the device without stressing the cable. It is important that the measurement point is clean and free of dirt or insulating materials to ensure accurate measurement. The probe is not suitable for use in liquid media or under pressure.

Advantages in operation

The SK15 offers high measurement accuracy due to the spring-loaded tip and stable construction. The replaceable miniature connectors reduce maintenance costs and increase the lifespan of the entire system. Compatibility with multiple devices from the Chauvin Arnoux portfolio enables flexible use in various application scenarios. The use of K-type thermocouples ensures high reliability and standardization, widely adopted in industry.

The probe is not designed for use in explosive environments or under high mechanical stress.

The information regarding temperature range, compatibility, and construction is based exclusively on the provided sources.

The probe is intended for use exclusively on solid surfaces.