TC-300 L Shape Thermocouple for Molten Metal Furnace Non-Ferrous

SKU: TC300

TC-300 L Shape Thermocouple for Molten Metal Furnace Non-Ferrous

Heavy-Duty Temperature Measurement for Molten Aluminum Holding Furnaces and Non-Ferrous Metal Processing

The TC300 L shape Thermocouple for Molten Metal is designed for use in continuously measuring temperature in molten aluminium holding furnaces, crucibles, ladles, and in other non-ferrous metal processing applications. It is offered in either a straight or 90° angled form and brings together a protected thermocouple element with heavy-duty protection-tube choices so that it can endure the thermal shock, corrosion, oxidation, and other severe operating conditions that occur in molten-metal processes.

Designed for Molten Aluminum

Purpose-built for continuous temperature measurement in molten aluminum holding furnaces, crucibles, and ladles

Excellent Thermal Shock Resistance

Protection-tube options are available with excellent thermal-shock resistance for demanding furnace and molten-metal service

Corrosion & Oxidation Resistance

Protection-tube options provide resistance to oxidation and corrosion encountered in molten aluminum and other non-ferrous metal processes.

Straight or 90° Angled Design

Choose a straight or 90° configuration to accommodate furnace geometry, access limitations, and installation requirements

Continuous Furnace Monitoring

Designed for continuous monitoring of molten aluminum in holding furnaces rather than temporary handheld temperature checks

Single or Duplex Measurement

Available with single or duplex measuring elements, providing configuration flexibility for furnace temperature monitoring

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Quick Specifications

Thermocouple Type Type K
Thermocouple Configuration Straight or 90° Angled
Element Configuration Single or Duplex
Element Construction MGO-PAC for angled assemblies; beaded element available for straight assemblies
MGO-PAC Junction Grounded or Ungrounded
Beaded Element Wire Size 8, 14 or 20 AWG
Ideal for
Holding Furnaces
Aluminum Crucibles
Foundry Ladles
Die Casting Furnaces
OEM Foundry Equipment
Molten Metal Transfer Systems
The TC300 Angled Thermocouple for Molten Metal is designed for continuous temperature measurement in molten aluminum holding furnaces, crucibles, ladles, and other non-ferrous metal processing applications. Its solid, protected construction enables the thermocouple to withstand thermal shock, oxidation, corrosion, and the mechanical stresses commonly encountered in foundry and molten-metal environments.
The TC300 is offered in both straight and 90-degree angled configurations, providing engineers with installation flexibility when furnace layout, wall thickness, equipment clearance, or accessibility constraints preclude conventional straight installations. The angled configuration incorporates an MGO-PAC thermocouple element, while straight assemblies may also be specified with a traditional beaded element.
For molten-metal protection, the TC300 can be equipped with silicon carbide or silicon nitride protection tubes. These materials provide varying degrees of resistance against thermal shock, oxidation, and corrosion, enabling selection of the protection tube based on specific metal and furnace operating conditions. Available protection-tube configurations include multiple diameters and customizable insertion lengths.
The thermocouple is available in Type K, with options for single or duplex measuring elements. MGO-PAC versions can be supplied with either grounded or ungrounded junctions, enabling the sensing configuration to be customized to response time, electrical isolation, and specific process requirements.
A range of industrial connection-head configurations is available, including general-purpose and explosion-proof options. Protection-tube length, extension length, conduit connection, and head style can be specified to meet installation requirements.
This configurable design offers maintenance teams and furnace operators a practical temperature-sensing solution for aluminum holding furnaces and demanding non-ferrous metal processes, where protection of the sensing element and reliable, continuous measurement are essential.

Product Specifications

Review the standard specifications and available configuration options for the TC300 Industrial Thermocouple with connection head. Product dimensions, materials, temperature ratings, and optional features may vary depending on the selected configuration

Thermocouple TypeType K
Thermocouple ConfigurationStraight or 90° Angled
Element ConfigurationSingle or Duplex
Element ConstructionMGO-PAC for angled assemblies; beaded element available for straight assemblies
MGO-PAC JunctionGrounded or Ungrounded
Beaded Element Wire Size8, 14 or 20 AWG
MGO-PAC Sheath316 Stainless Steel
Protection Tube LengthStandard and custom lengths available depending on selected protection tube
Extension LengthCustom; specified in inches or millimetres
Connection HeadAluminum, Stainless Steel, Cast Iron or specified Explosion-Proof options
Conduit Connection1/2" or 3/4" connection options
Head TerminationCeramic Terminal Block

Spare Parts & Accessories

Complete your installation with compatible mounting accessories, connectors, and replacement components for the TC300 Thermocouple.

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Product Videos

Watch product overview, installation, and application videos for the TC300 Thermocouple

Temperature Transmitter | Tempotech Controls Inc

A temperature transmitter takes the temperature data from a sensor, like an RTD or thermocouple, and converts it into a standard signal, usually 4-20mA or 0-10V. This signal can be sent to control systems, PLCs, or monitoring equipment to keep track of temperature in real-time.

Read transcript

Video Transcription: Temperature Transmitter Technology & Application
[00:05] A temperature transmitter is a critical component in industrial automation that converts low-level sensor signals into standardized outputs. This ensures accurate, reliable, and long-distance signal transmission for complex control systems.

[00:14] Thermocouple and RTD sensors are the industry standards for measuring the temperature of processed media. However, in challenging environments—characterized by high temperatures, electromagnetic interference (EMI), or long cable runs—the raw signals from these sensors can degrade.

[00:33] This signal degradation, often caused by wire resistance and electrical noise, can lead to inaccurate readings. To mitigate these issues, temperature transmitters are used to amplify, condition, and convert sensor data into a standardized 4-20mA output, ensuring high-integrity data across the plant.

[00:59] Several signal types are used depending on the application:

4 to 20 mA Analog Signal: The most common standard, highly resistant to noise and ideal for long distances.

0 to 10V: A common analog option, though more susceptible to signal loss over length.

Digital Signals (HART & Modbus): Used for advanced remote communication and diagnostics.

RS485/RS232: Essential for integrating transmitters with PLCs and SCADA systems.

[01:35] The Tempotech TT367 series temperature transmitters are engineered for versatility. They offer precise sensor-transmitter matching and robust protection against interference. Configurable via the HART protocol, these units allow for easy setup and reliable field operation.

[01:56] Key reliability features include open/short-circuit detection, incorrect wiring alerts, and NAMUR NE43 failure standards. The TT367 supports RTD, TC, Ohm, and Millivolt inputs, making it a universal solution for your instrumentation needs.

[02:26] With integrated dot-matrix displays and easy configuration options, our transmitters provide the precision you can trust. Contact our technical sales team today to find the best transmitter for your application.

FerroSafe® series thermocouples | Tempotech Controls Inc

FerroSafe® series thermocouples for Molten Metal application

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[00:00:05] Introducing the FerroSafe® series thermocouples, engineered for high-temperature accuracy and built for extreme molten metal environments.

[00:00:17] Designed specifically for the non-ferrous metal industries, this industrial sensor delivers precise temperature measurement where failure is not an option. It comes with various options, including a rugged handle, lead wire, and digital reader.

[00:00:28] At its core is a rugged metal sheath protected by our proprietary ceramic coating. This unique non-wetting layer ensures longer sensor life and reliable performance in direct molten metal contact.

[00:00:37] With a reduced tip for fast-response sensing and a thermal conductive coating for consistent readings, the FerroSafe responds in under 8 seconds—perfect for real-time process control.

[00:00:45] Available in Type K and Type N calibrations and built to ASM, IEC, and ANSI standards, these sensors meet Class 1 and Class 2 accuracy for high-confidence data when it matters most.

[00:01:06] Choose from coated or uncoated versions depending on your application needs, withstanding temperatures up to 900°C or 1600°F.

[00:01:14] FerroSafe: Precision, durability, and performance. Contact us today to learn more or request a quote. Visit our website to find more information.

Thermocouples de la série FerroSafe®

FerroSafe® series thermocouples for Molten Metal application

Read transcript

[00:05] Présentation des thermocouples de la série FerroSafe®, conçus pour une précision optimale et fabriqués pour des environnements extrêmes de métal en fusion.

[00:13] Conçu spécialement pour les industries des métaux non ferreux, ce capteur industriel fournit une mesure de température précise là où l'échec n'est pas une option. Disponible avec plusieurs options, y compris une poignée ergonomique, un câble de compensation, et un lecteur numérique.

[00:29] Au cœur de ce produit se trouve une gaine métallique robuste protégée par notre revêtement céramique exclusif. Cette couche unique non mouillable garantit une durée de vie prolongée et des performances fiables au contact direct du métal en fusion.

[00:43] Avec une pointe réduite pour une réponse thermique rapide et un revêtement thermiquement conducteur pour des relevés constants, le FerroSafe® réagit en moins de 8 secondes—idéal pour le contrôle des processus en temps réel.

[00:50] Disponible en étalonnage de Type K et Type N, et fabriqué selon les normes ASM, IEC et ANSI. Ces capteurs sont proposés avec des tolérances d'erreurs standard ou spéciales, garantissant des données fiables et précises lorsque la précision est essentielle.

[01:05] Choisissez entre des versions avec ou sans revêtement selon les exigences de votre application, résistant à des températures allant jusqu'à 900°C.

[01:13] FerroSafe® : Précision, durabilité, performance. Contactez-nous dès aujourd'hui pour en savoir plus sur notre série FerroSafe®. Visitez notre site web www.tempotechcontrols.com.

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Frequently Asked Questions

Find answers to common questions about the TC300 Thermocouple

Does the TC300 protection tube need to be preheated before inserting it into molten aluminum?+

When installing into a hot furnace, the protection tube should be preheated close to the furnace temperature before insertion to reduce the risk of thermal-shock damage. The TC300 instructions recommend preheating the protection tube to 500°C before insertion. Preheating is not required when installing into a cold furnace

Can the TC300 be customized to fit my existing aluminum holding furnace?+

Yes. The TC300 offers configurable protection-tube lengths, extension lengths, straight or 90° geometry, connection heads, and conduit connections. Custom furnace mounting fittings can also be supplied when required

Can the TC300 provide two temperature signals from the same assembly?+

Yes. The TC300 is available in single or duplex configurations. A duplex configuration provides two thermocouple circuits within the assembly and can be selected when two temperature signals are required from the same measurement location

Why choose an MGO-PAC element over a beaded thermocouple?+

Choose MGO-PAC when greater mechanical protection and durability are required. Its mineral-insulated, metal-sheathed construction protects the thermocouple wires and offers grounded or ungrounded junctions. For the TC300, MGO-PAC is required for the 90° angled configuration, while beaded elements are limited to straight assemblies.

Should I choose silicon carbide or silicon nitride for molten aluminum?+

Both protection-tube materials are available for the TC300. Silicon carbide provides high mechanical strength with good thermal-shock and corrosion resistance, while silicon nitride provides excellent thermal-shock resistance and is identified for molten aluminum service. Final selection should consider the furnace conditions and installation requirements

Can the TC300 be customized to fit my existing aluminum holding furnace?+

Yes. The TC300 offers configurable protection-tube lengths, extension lengths, straight or 90° geometry, connection heads, and conduit connections. Custom furnace mounting fittings can also be supplied when required