TC-202 Thermocouple with Silicon Carbide Protection Tube and Flange

SKU: TC202

TC-202 Thermocouple with Silicon Carbide Protection Tube and Flange

Dual Protection Tube Thermocouple for Continuous Molten Metal and High-Temperature Measurement

Built for demanding molten metal and high-temperature applications, the TC202 Thermocouple combines a silicon carbide outer protection tube with an inner Mullite or Alumina tube for dependable continuous temperature measurement. Available with multiple thermocouple types, junction configurations and a support flange assembly, the TC202 is well suited for molten aluminum, holding furnaces, crucibles, ladles and foundry processes where thermal shock, corrosion and harsh operating conditions are a concern

Dual Protection Tube Design

Outer silicon carbide protection tube combined with an inner Mullite or Alumina tube for demanding high-temperature service

Molten Aluminum Ready

Designed for continuous temperature monitoring in molten aluminum applications, including holding furnaces, crucibles and ladles

Thermal-Shock Resistance

Silicon carbide outer protection helps withstand rapid temperature changes encountered in harsh foundry processes

High-Temperature

upports multiple thermocouple types for high-temperature measurement, with the allowable limit dependent on thermocouple type and process conditions

Flange-Mounted

Available with a support flange and plate with gasket for secure installation into furnaces and process equipment

Customizable

Multiple connection heads, conduit connections, protection-tube lengths and custom lengths allow the TC202 to be configured around the installation

Download Datasheet

Quick Specifications

Thermocouple Types Type R, S, B, K, J,C
Sensor Configuration Single or Duplex
Protection Design Dual Protection Tube Construction
Outer Protection Tube Silicon Carbide (SiC)
Inner Protection Tube Mullite or Alumina
Protection Tube OD Outer: 1-3/4 in.; Inner: 11/16 in.
Ideal for
Holding Furnaces
Ladle Temperature
Metal Crucibles
Foundry Furnaces
Industrial Furnaces
Kilns & Ovens
Incinerators
Sintering & Firing
The TC202 Thermocouple with Silicon Carbide Protection Tube and Flange is designed for continuous high-temperature measurement in demanding industrial environments, including molten aluminum, holding furnaces, crucibles, ladles, foundries, and metal processing applications. The dual protection-tube construction safeguards the sensing element in conditions where thermal shock, oxidation, corrosion, and other harsh factors typically reduce the lifespan of conventional thermocouples.
The outer silicon carbide (SiC) protection tube offers mechanical strength and resists thermal shock and corrosion caused by molten aluminum. An inner Mullite or Alumina protection tube serves as an additional barrier for the thermocouple element. This dual-tube configuration renders the TC202 suitable for fixed installations that require reliable, continuous temperature monitoring.
The TC202 supports configuration with Type R, S, B, K, or J thermocouple elements, and Type C is also available as an ordering option. Both single and duplex configurations are offered, including a mineral-insulated MGO-PAC style. Junction options include exposed, recessed (for noble-metal elements), butt-welded, and twisted-welded designs, enabling the sensor to be designed to specific measurement and durability requirements.
To enhance installation flexibility, the TC202 is offered with a support flange and plate with gasket, various connection-head options, conduit connections, and both standard and custom immersion lengths. Standard protection-tube lengths range from 12 to 36 inches, with custom lengths available upon request.
In addition to molten aluminum applications, the TC202 is suitable for furnaces, foundries, steel and metal processing, glass manufacturing, ceramic kilns, heat treatment, reactors, incinerators, and other high-temperature processes. Calibration in accordance with ASTM E220 is available upon request.

Product Specifications

Review the standard specifications and available configuration options for the TC202 Industrial Thermocouple with connection head. Product dimensions, materials, temperature ratings, and optional features may vary depending on the selected configuration

Thermocouple TypesType R, S, B, K, J,C
Sensor ConfigurationSingle or Duplex
Protection DesignDual Protection Tube Construction
Outer Protection TubeSilicon Carbide (SiC)
Inner Protection TubeMullite or Alumina
Protection Tube ODOuter: 1-3/4 in.; Inner: 11/16 in.
Element ConstructionBase-metal or noble-metal element; MGO-PAC style option available
Junction OptionsExposed or Recessed; recessed option for noble-metal elements
Noble-Metal Wire Size24, 26 or 30 AWG
Base-Metal Wire Size8, 14 or 20 AWG
Protection Tube Length12, 18, 24, 30 or 36 in.; custom lengths available
Process ConnectionSupport Flange and Plate with Gasket
Connection HeadGeneral-Purpose Aluminum, Cast Iron, Aluminum Explosion-Proof
Conduit Connection1/2 in. NPT or 3/4 in. NPT
Head TerminationCeramic Terminal Block
Accuracy / CalibrationStandard and special tolerances available; ASTM E220 calibration available on request

Spare Parts & Accessories

Complete your installation with compatible mounting accessories, connectors, and replacement components for the TC202 Thermocouple.

Image: Cast Iron-Connection Head

Cast Iron-Connection Head

TempoTech’s Thermocouple connection heads are enclosures designed to house the thermocouple junction and provide a safe, protected environment for the connections to the temperature measurement system. These heads are typically used in…

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Image: SPT-Silicon Carbide Protection Tube

SPT-Silicon Carbide Protection Tube

Tempotech Controls offers custom-length and size protection tubes made from  nitride bonded silicon carbide , designed to meet specific requirements for various industrial applications. Key Feature;- Maximum Temperatrue up to 1450 Deg…

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Product Videos

Watch product overview, installation, and application videos for the TC202 Thermocouple

FerroSafe® series thermocouples | Tempotech Controls Inc

FerroSafe® series thermocouples for Molten Metal application

Read transcript

[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 TC202 Thermocouple

Why does the TC202 use a dual protection tube?+

The dual-tube design combines an outer silicon carbide protection tube with an inner Mullite or Alumina tube. This provides additional protection for the thermocouple element in harsh furnace and molten-metal environments

Which thermocouple types are available for the TC202?+

Available thermocouple elements include Type R, S, B, K and J, with Type C also identified in the ordering options. This allows the assembly to be configured for different temperature ranges and processes

What is the maximum operating temperature of the TC202?+

The allowable temperature depends on the thermocouple type, protection-tube configuration and actual process conditions. The datasheet lists a typical application range of 800°C to 1800°C (1470°F to 3272°F) and recommends evaluating actual process conditions when determining the maximum limit

What protection-tube lengths are available?+

Standard lengths include 12, 18, 24, 30 and 36 inches. Custom lengths can also be specified in inches or millimetres for OEM equipment and replacement applications.

Is the TC202 available in straight and L-shaped configurations?+

Yes. The TC202 can be supplied in straight or L-shaped configurations, giving OEMs and engineers flexibility when furnace geometry, access, mounting position or immersion requirements make a straight installation impractical

Can the TC202 be calibrated before shipment?+

Yes. The thermocouple is manufactured to applicable ASTM E230/E230M requirements, and ASTM E220 calibration is available on request. This is useful for OEM commissioning, MRO replacement programs and applications requiring documented temperature verification