MPTC-04 Multipoint GuideTube Style Thermocouple

SKU: MPTC-04

MPTC-04 Multipoint GuideTube Style Thermocouple

Guide Tube Multipoint Thermocouple for Precise Temperature Profiling in Reactors, Columns and Process Equipment

Measure temperature at multiple points throughout critical process equipment with the MPTC-04 Guide Tube Multipoint Thermocouple. Individual MGO-PAC thermocouples are installed inside guide tubes and positioned at different sensing locations to provide a detailed temperature profile across the process. Designed for reliable handling and field maintenance, the MPTC-04 is well suited for reactors, distillation columns, heat exchangers, separation systems and chemical processing applications where monitoring temperature gradients and maintaining precise process control are essential

Guide Tube Multipoint

Multiple thermocouples are positioned inside individual guide tubes to measure temperature at different points along one assembly

MGO-PAC Thermocouple

Mineral-insulated thermocouple elements provide rugged construction for demanding process environments

Custom Sensing-Point

Each sensing point can be positioned at a specified distance from the probe tip to match the required process measurement locations

Type K, J, T & N Options

Multiple thermocouple types allow the sensor assembly to be configured for different process requirements

Multiple Sensing Points

Measures temperature at multiple locations along a single sensor for detailed temperature profiling

Custom Material Selection

Multipoint assemblies can be configured using a variety of available materials to suit different process and operating requirements

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Quick Specifications

Thermocouple Types Type K, J, T, N
Sensor Construction MGO-PAC Mineral-Insulated
Multipoint Configuration Multiple Temperature Sensing Points
Sensor Style Guide Tube
Thermocouple Arrangement Individual Elements Installed Inside Guide Tubes
Outer Assembly Guide Tubes Installed Inside Outer Protection Tube
Ideal for
Distillation Column
Reactor
Heat Exchanger
Polymerization
Chemical
Crude Oil Desalting
Catalytic Cracking
Visbreaking
The MPTC-04 Multipoint Temperature Sensor with Guide Tube is intended for use in industrial processes in which it is necessary to measure temperature at a number of positions within a single vessel, column or process assembly. Rather than using a single measurement point, several thermocouples are placed at various depths in order to obtain a detailed temperature profile and to assist in the identification of temperature gradients over the course of the process.
The guided-tube design of the MPTC-04 keeps the separate thermocouple elements arranged within the outer protection tube, with separators holding the guide tubes in place and the thermocouples being put into the guide tubes so that they make direct contact with the outer sheath of the protection tube. This kind of construction offers a practical approach to handling, installation and carrying out field maintenance in harsh process applications.
The MPTC-04 model uses MGO-PAC mineral-insulated thermocouples and can be supplied with Type K, J, T and N elements, available in either grounded or ungrounded junction arrangements. The diameters of the sensing elements vary from 0.020 inch to one-eighth inch. The available sheath materials are 304, 316 and 321 stainless steel, Inconel 600, Incoloy 800, Monel and Pyrosil D, thus enabling the assembly to be set up according to different process conditions.
Typical examples are distillation columns, reactors, heat exchanger temperature profiling, polymerisation and chemical processing, crude oil desalting, fluidised catalytic cracking (FCC), visbreaking, and separation processes.
For demanding installations, enclosures made from aluminium, stainless steel and cast iron are offered, including those meeting the NEMA 4X/IP68 standard. Temperature calibration traceable to NIST is available up to 1200°C, together with CSA/ATEX/FM explosion-proof enclosure options and radiographic, pressure and NDT testing if required.

Product Specifications

Review the standard specifications and available configuration options for the MPTC-04 Multipoint Thermocouple . Product dimensions, materials, temperature ratings, and optional features may vary depending on the selected configuration

Thermocouple TypesType K, J, T, N
Sensor ConstructionMGO-PAC Mineral-Insulated
Multipoint ConfigurationMultiple Temperature Sensing Points
Sensor StyleGuide Tube
Thermocouple ArrangementIndividual Elements Installed Inside Guide Tubes
Outer AssemblyGuide Tubes Installed Inside Outer Protection Tube
Sensing ContactDirect Contact with Outer Protection-Tube Sheath
Junction TypeGrounded / Ungrounded
Sheath Materials304 SS / 316 SS / 321 SS/Inconel 600 / Incoloy 800 / Monel / Pyrosil D
Enclosure MaterialAluminum / Stainless Steel / Cast Iron
Enclosure RatingNEMA 4X / IP68
Tolerance OptionsStandard Limits / Special Limits of Error
Testing OptionsRadiographic / Pressure Test (CRN) / NDT Available on Request
Transmitter Options4–20 mA / HART / Fieldbus*

Spare Parts & Accessories

Complete your installation with compatible mounting accessories, connectors, and replacement components for the MPTC-04 Thermocouple.

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Product Videos

Watch product overview, installation, and application videos for the MPTC-04 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.

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Frequently Asked Questions

Find answers to common questions about the MPTC-04 Thermocouple

What is a guide tube multipoint thermocouple?+

A guide tube multipoint thermocouple uses multiple thermocouple elements positioned at different sensing points within a single assembly. Each thermocouple is installed inside a guide tube, allowing temperature to be measured at several locations throughout the process

How does the MPTC-04 guide tube design work?+

Guide tubes are positioned with separators inside the outer protection tube. Individual thermocouples are inserted into these guide tubes and arranged for direct contact with the outer sheath of the protection tube at the required sensing locations

Where is the MPTC-04 commonly used?+

ypical applications include distillation columns, reactors, heat exchangers, separation processes, polymerization and chemical processing, crude oil desalting, fluidized catalytic cracking (FCC), and visbreaking units

Is the MPTC-04 suitable for outdoor and hazardous locations?+

NEMA 4X and IP68 enclosure options are available for outdoor environments. CSA, ATEX and FM explosion-proof enclosures are also available for hazardous-location applications,, hazloc option is also available, Please contact sales.

What inspection and testing can be provided?+

Radiographic examination, pressure testing and NDT testing are available on request to support project-specific inspection and quality requirements.

Is CRN available for MPTC-04 installations in Canada?+

Yes. Canadian Registration Number (CRN) availability can be provided on request for Canadian end-user applications where required. Project and installation requirements should be reviewed when specifying the assembly