Separate melting-furnace zone measurement from holding-furnace monitoring and from a direct metal-temperature check. Record what each reading represents, where it is taken and how it is used; the equipment name alone does not define a sensor duty.
For each point, document furnace zone, process stage, expected conditions, measurement method, access, handling and removal arrangement, response requirement and receiving instrument. A metal-related point also needs a clear description of the location and whether the reading is direct, surface-based or taken from the furnace environment.
The catalogue records reviewed here do not explicitly document a foundry melting- or holding-furnace application for the R Type thermocouple, ceramic transducer or portable indicator. A high-temperature description, ceramic construction or instrument category alone does not establish suitability for a particular foundry duty, so this page does not recommend those products as matched solutions.
Share a point schedule, furnace layout, measurement method and instrument details for engineering review. Identify melting and holding points separately and provide the relevant operating conditions before comparing any product listing with the duty.