
Thermocouple connectors
Accurate temperature measurement using thermocouples depends on many factors, including the quality and compatibility of connectors, the materials used in the circuit, and the correct handling of low-voltage signals.
Properly selected connectors, suitable for specific environmental conditions, calibration standards, and system requirements, play a vital role in ensuring that the system delivers accurate, reliable data. Whether for laboratory use, manufacturing processes, or industrial machinery, choosing the right thermocouple connectors enhances the overall efficiency, safety, and precision of temperature measurement systems.
When choosing the appropriate thermocouple connectors for a particular application, several factors must be considered to ensure the connector’s performance and suitability:
Calibration
Different thermocouples are calibrated to different standards, depending on their material composition (e.g., type K, J, T). It’s crucial to select connectors that match the calibration of the thermocouple to avoid measurement errors.
Hamitherm offers thermocouple connectors for all calibrations, ensuring compatibility with various thermocouple types.
Connector size
Depending on the application, you may need either miniature connectors (for compact systems) or standard-sized connectors (for general-purpose use). The size of the connector should align with the physical space and the number of circuits involved.
Temperature range
The materials used in the connectors must be chosen based on the temperature range the system will operate in. Depending on the specific application, connectors need to withstand extreme temperatures, ranging from -200°C to +600°C. The body material of the connector (such as high-temperature resistant plastics, metals, or ceramics) is determined by the required temperature tolerance.
Wire sytem
Thermocouple connectors are available for different types of wiring systems. These include:
- 3-wire and 4-wire systems, commonly used in RTD (resistance temperature detector) circuits
- Thermocouples that require grounding wires to reduce electrical noise
- Duplex thermocouples, which involve two separate thermocouples in one connector for redundancy or to measure two temperatures simultaneously
Multi-circuit connectors
Some industrial setups need to connect multiple thermocouples or sensors at once. In these cases, multi-circuit connectors are available that allow up to 6 circuits to be connected to a single interface, simplifying wiring and ensuring accurate temperature monitoring across multiple points.

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