The measuring junction is the critical point in a thermocouple where two dissimilar metal wires are fused to generate a temperature-dependent voltage signal.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Accuracy | ±0.75% to ±2.2% of reading | |
| Insulation | Ceramic, MgO, Fiberglass, PFA | |
| Wire Gauge | AWG 8 to 40 (0.5mm to 8mm diameter) | |
| Response Time | 0.1 to 10 seconds | |
| Temperature Range | -200°C to +2300°C (type-dependent) | |
| Junction Configuration | Grounded, Ungrounded, Exposed |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A practical evidence checklist for RFQ preparation and supplier evaluation.
Compare the published product scope and source details, then include your specifications and quantity in an enquiry.
Manufacturer profiles associated with Measuring Junction.
Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.
Grounded junctions have the thermocouple wires welded to the sheath, providing faster response but risk electrical noise. Ungrounded junctions are insulated from the sheath, offering electrical isolation but slower response.
Smaller junctions have faster response times but lower mechanical strength. Larger junctions are more durable but respond slower and may not accurately measure small or rapidly changing temperature points.
Typically not—damaged junctions usually require complete thermocouple replacement. Junction integrity is critical for accurate Seebeck voltage generation.
Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.