Brand: JUMO

JUMO Mineral-Insulated RTD Temperature Probe

Name: JUMO Mineral-Insulated RTD Temperature Probe – Datasheet
Brand: JUMO

Description

Overview

JUMO Mineral-Insulated RTD Temperature Probe is a flexible resistance thermometer built according to DIN EN 60751, engineered for chemical plants, power plants, pipelines, engine building, and test rigs wherever measuring locations require flexibility and simple replacement. Featuring a flexible, thin-walled stainless steel sheath cable with a vibration-resistant measuring insert, the JUMO Mineral-Insulated RTD Temperature Probe covers an exceptionally wide temperature range from -50°C (or -200°C on select variants) up to +600°C.

Backed by manufacturer datasheet documentation, Seven Star LLC proudly supplies the JUMO Mineral-Insulated RTD Temperature Probe to chemical, power generation, and industrial customers across Oman and the wider GCC. Every unit supplied through Seven Star LLC comes with manufacturer documentation and access to local technical support – supporting facility engineers and procurement teams in Muscat, Sohar, and Salalah who specify the JUMO Mineral-Insulated RTD Temperature Probe.

Working Principle

The JUMO Mineral-Insulated RTD Temperature Probe operates on the resistance temperature detector principle: inside a flexible, thin-walled sheathed cable made of stainless steel, low-ohmic conductor copper wires are embedded in compressed, heat-resistant magnesium oxide, providing continuous electrical insulation while transferring heat efficiently to the Pt100 or Pt1000 sensing element at the tip. The temperature sensor is connected to the conductor in two-wire, three-wire, or four-wire technology, and as process temperature changes the platinum element’s electrical resistance changes in a precise, DIN EN 60751-compliant relationship, giving a standardized and repeatable measurement.

This mineral-insulated construction gives the probe its defining response speed and durability advantage: the compressed magnesium oxide insulation conducts heat quickly to the sensing element while damping mechanical vibration that would otherwise fatigue a conventional wired sensor over time. Response times as fast as t0.5 = 0.4 m/s in water or 3 m/s in air reflect the thin, flexible sheath’s ability to transfer thermal changes to the sensor rapidly, making the probe suitable for process loops requiring quick temperature feedback.

Engineering Design of the JUMO Mineral-Insulated RTD Temperature Probe

The JUMO Mineral-Insulated RTD Temperature Probe is available with connecting cables in PVC (-5°C to +80/+105°C), silicone (-50°C to +180°C), PTFE (-190°C to +260°C), or metal-braided cable (-50°C to +350°C), allowing the cable material to be matched to the ambient conditions surrounding the installation. The protection tube itself is manufactured from stainless steel 1.4541, and cable ends can be supplied stripped bare or fitted with ferrules, plug-in sleeves, or multi-pole electrical connectors according to the termination requirements of the connected instrumentation.

Process connections include screw connections in G1/2, G1/4, G3/8, M8, and 1/2-14 NPT sizes, and the probe is available as a single or double RTD temperature probe, with sheath diameters of 1.9 mm, 3 mm, or 6 mm, and insertion lengths from 100 mm up to 1000 mm to match application-specific mounting requirements. The standard adapter sleeve (end closure) is rated up to 120°C, with a 300°C-rated version available for higher-temperature connecting-head applications.

Key Features

The JUMO Mineral-Insulated RTD Temperature Probe combines a flexible, vibration-resistant sheath design with a wide operating envelope that makes it a standard choice for demanding process temperature measurement.

A flexible, thin-walled stainless steel sheath cable with vibration-resistant measuring insert supports demanding mechanical environments.
Temperature range from -50°C (or -200°C) up to +600°C covers cryogenic through high-temperature furnace applications.
Fast response times (t0.5 as low as 0.4 m/s in water, 3 m/s in air) support quick-reacting process control loops.
Multiple cable materials (PVC, silicone, PTFE, metal-braided) match the connecting cable to ambient installation conditions.
Single or double RTD configurations in two-, three-, or four-wire circuits support redundant or high-accuracy measurement schemes.
Application-specific insertion lengths and multiple sheath diameters allow precise fit to the process thermowell or direct insertion point.
Multiple cable termination options (bare, ferrules, plug-in sleeves, multi-pole connectors) simplify field wiring.
Compliance with DIN EN 60751 ensures standardized, interchangeable Pt100/Pt1000 measurement characteristics.

Industrial Applications

The JUMO Mineral-Insulated RTD Temperature Probe is deployed across chemical plants, power plants, pipelines, engine manufacturing, and test rigs wherever flexibility, simple replacement, and vibration resistance are essential for reliable process temperature measurement. Typical duties include pipeline temperature monitoring, engine and test rig temperature sensing, and general chemical and power plant process temperature loops requiring a durable, easily replaceable probe.

Working closely with plant engineers in the region, Seven Star LLC distributes the JUMO Mineral-Insulated RTD Temperature Probe to chemical processing facilities, power generation plants, and industrial operations throughout Oman and the GCC. The probe is a strong fit for pipeline and process temperature measurement across the Sohar and Salalah industrial zones, as well as for power generation and general manufacturing facilities across Muscat that require dependable, vibration-resistant RTD temperature sensing.

Technical Specifications

The table below summarizes the core specifications of the JUMO Mineral-Insulated RTD Temperature Probe as supplied by Seven Star LLC.

Parameter	Specification
Model	JUMO Mineral-Insulated RTD Temperature Probe (902250)
Standard	DIN EN 60751
Temperature Sensor	Pt100, Pt1000
Operating Temperature	-50°C (-200°C) to +600°C
Protection Tube	Stainless steel 1.4541
Connecting Cable	PVC, silicone, PTFE, or metal braiding
Response Time	0.4 m/s (water); 3 m/s (air)
Wiring Configuration	2-wire, 3-wire, or 4-wire (single or double RTD)
Process Connection	G1/2, G1/4, G3/8, M8, 1/2-14 NPT
Sheath Diameter	1.9 mm, 3 mm, 6 mm
Typical Applications	Chemical plants, power plants, pipelines, engine building, test rigs

Request a Quote for JUMO Mineral-Insulated RTD Temperature Probe

Seven Star LLC supports the full procurement cycle for the JUMO Mineral-Insulated RTD Temperature Probe, from formal RFQ submission to confirmation of availability and lead time, technical datasheet delivery, and direct consultation with our instrumentation division on cable material, insertion length, and wiring configuration for your application. With fast quotation turnaround and technical support, we supply every JUMO Mineral-Insulated RTD Temperature Probe with manufacturer documentation and local technical support. Contact Seven Star LLC today to request a quotation or discuss your temperature measurement requirements.

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About brand

JUMO is the German maker of temperature sensors, process controllers, pressure transmitters and liquid analysis instruments. Moritz Kurt Juchheim founded it in Fulda in 1948 as M. K. Juchheim KG, making glass thermometers with six employees. The name JUMO comes from the founder's name. It is still a family company headquartered in Fulda, and the parent company has been called JUMO GmbH & Co. KG since 2003.

Seven Star LLC is an independent supplier in Muscat. We list JUMO RTD and thermocouple probes, thermowells, transmitters, controllers, recorders and water analysis instruments, and supply them to process plants, OEMs, HVAC contractors and water utilities in Oman and the GCC by type number.

JUMO company profile

Established	1948, Fulda, Germany, by Moritz Kurt Juchheim
First products	Glass and contact thermometers; platinum glass sensors from 1966
Ownership	Family-owned; renamed JUMO GmbH & Co. KG in 2003
Product families	RTD and thermocouple probes, thermowells, temperature and pressure transmitters, controllers and thermostats, safety temperature limiters, paperless recorders, liquid analysis and flow and level instruments

Milestones

1948: Moritz Kurt Juchheim founds M. K. Juchheim KG in Fulda, making glass thermometers with six employees.
1966: Platinum glass temperature sensors are added.
2003: The parent company is renamed JUMO GmbH & Co. KG.

JUMO products we list

Family	Models	Typical use
RTD and thermocouple probes	902020, 902030, 902050, 902120, 902006 2xPt100, PROCESStemp, mineral-insulated RTD, 901020 thermocouple, 901210, 902810 hygienic, 902550 surface, 902520 HVAC, MarineTemp	Temperature measurement in pipes, vessels, machines, HVAC and food plants
Thermowells and inserts	909710 thermowells, 909740 measuring inserts	Protecting sensors and replacing them without opening the process
Temperature transmitters	dTRANS T01, T03, T04, T05, T06 SIL, T07 HART, T09, T1000 IO-Link, DELOS T switch	Converting sensor signals to 4-20 mA, HART or IO-Link
Pressure and level	dTRANS p20, p30, p31 hygienic, p33 Ex, p02 DELTA, MIDAS S05, MIDAS DP10, DELOS S02, MAERA S25, NESOS R20	Pressure in process, hydraulic and OEM systems; tank and well level
Controllers, limiters and recorders	DICON touch, IMAGO 500, dTRON 316, iTRON, cTRON, diraTRON 104, eTRON T, safetyM STB/STW, safetyM TB/TW, LOGOSCREEN 601, mTRON T	Furnace, oven and process control, over-temperature protection and recording
Liquid analysis and flow	AQUIS touch S, AQUIS touch P, AQUIS 500 pH, AQUIS 500 CR, dTRANS pH 02, pH electrode, digiLine DO, ecoLine NTU, flowTRANS MAG H20, flowTRANS US W01	pH, conductivity, oxygen and turbidity in water treatment; liquid flow

Choosing a temperature sensor starts with the range and accuracy. A Pt100 RTD is accurate and stable from about -200 to 600 °C and is the usual choice in process plants. A thermocouple (type K or J, for example) covers much higher temperatures and responds faster but is less accurate. The wiring also matters: a 3-wire or 4-wire Pt100 connection cancels the resistance of the cable, while a 2-wire connection adds an error that grows with cable length. That is why a head-mounted transmitter is often fitted close to the sensor.

Where JUMO products are used

In Oman and the GCC, JUMO sensors and controllers are used in oil and gas and chemical plants, food and beverage production, plastics and metal heat treatment, HVAC and district cooling, water and wastewater treatment, swimming pools and marine applications.

Ordering JUMO products: what we need

Send the JUMO type number and the full order code from the label (for example 902020/10-...). For probes, add the sensor type (Pt100, Pt1000, type K or J), the number of wires, the insertion length and diameter, and the process connection. For controllers, add the input, outputs and supply voltage.

Facts checked against JUMO's company history, October 2026.

Browse JUMO products by category: Temperature Instrumentation, Pressure Instrumentation, Liquid Analysis Sensors, Controllers & Data Acquisition, Level Transmitter.

Frequently Asked Questions

What temperature range can the JUMO Mineral-Insulated RTD Probe measure?

The probe covers an operating range from -50°C (or -200°C on select variants) up to +600°C, with the specific range depending on the sensor and connecting cable material selected.

What cable materials are available for the connecting cable?

The connecting cable is available in PVC (-5°C to +80/+105°C), silicone (-50°C to +180°C), PTFE (-190°C to +260°C), or metal-braided cable (-50°C to +350°C), allowing the cable material to be matched to the ambient conditions of the installation.

Why is the mineral-insulated construction used for this RTD probe?

Inside the flexible, thin-walled stainless steel sheath, low-ohmic copper conductor wires are embedded in compressed magnesium oxide, which conducts heat quickly to the sensing element while damping mechanical vibration, giving the probe both fast response and vibration resistance.

Can the JUMO Mineral-Insulated RTD Probe be ordered with two sensors?

Yes. The probe is available as a single or double RTD temperature probe, in two-wire, three-wire, or four-wire circuits, supporting redundant or high-accuracy measurement schemes.

Is Seven Star LLC an experienced supply partner for JUMO products?

Yes, Seven Star LLC is an experienced supplier of JUMO in Oman and the GCC. We supply JUMO instrumentation on request with local technical support.

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