Map the automotive heat-treatment installation by measurement point rather than treating the furnace as a single duty. Identify the control, recording, independent protection and any workload or survey readings separately, then note which point follows each zone and stage of the cycle.
For every point, record its purpose, furnace zone, normal and upset conditions, atmosphere, thermal cycle, insertion and junction location, mounting clearance, cable route, receiving input and replacement access. These details distinguish a fixed furnace reading from a workload check and give engineering a basis to review the actual installation.
The Thermocouple MI catalogue record explicitly lists furnace, oven and heat-treatment measurement. It lists J and K types, grounded or ungrounded junctions and specified sheath choices; confirm the product page for the complete options. That process evidence is not an automotive-specific qualification, and the listing does not establish a universal configuration or operating range.
Use a point schedule or furnace drawing in the enquiry, including the required input and any existing sensor identification. Ask for review against the stated automotive heat-treatment duty; do not infer suitability from a temperature overlap or from a construction description alone.