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JUMO 902030 Screw-In RTD Temperature Probe

Description

Overview

JUMO 902030 is a screw-in RTD temperature probe with a Form J terminal head, engineered for reliable direct-immersion measurement in mechanical engineering, thermostat baths, gearbox construction, and food and beverage processing lines. Available with Pt100, Pt500, or Pt1000 sensing elements in Class 1 or Class 2 accuracy, and in sheath diameters of 6, 7, or 8 mm with insertion lengths from 50 mm to 500 mm, the JUMO 902030 gives specifiers a highly configurable, field-proven RTD platform built in corrosion-resistant 1.4571 stainless steel. Its spring-loaded internal connection and reliable sealing for both vacuum and overpressure duty make it a dependable choice for continuous industrial monitoring throughout Oman’s process and food-manufacturing sectors.

With fast quotation turnaround and technical support, Seven Star LLC proudly supplies the JUMO 902030 screw-in RTD probe to industrial buyers across the Sultanate of Oman and the wider GCC. Every unit we supply is a JUMO instrument, provided with manufacturer documentation and technical support for facility engineers in Muscat, Sohar, and Salalah.

Measurement Principle

The JUMO 902030 measures temperature via the resistance thermometry principle: a platinum sensing element changes electrical resistance in a precise, repeatable relationship with temperature, in accordance with IEC 60751. As the probe’s screw-in tip is inserted directly into the process medium, the platinum element absorbs heat and its resistance rises correspondingly, allowing the connected head transmitter or control system to derive an accurate, standards-based temperature reading. Because platinum RTDs offer excellent long-term stability compared with thermocouples, the 902030 is specified wherever repeatable, drift-resistant temperature feedback is required over years of continuous plant operation.

The 902030’s fast-response design is optimized for rapid measurement in air as well as liquid media, while its reliable internal sealing maintains accuracy under both vacuum and overpressure conditions — a combination that keeps the sensor performing consistently across variable process states without introducing pressure drop or contamination risk to the measured medium. This solid-state RTD sensing approach, with no moving parts, is why the 902030 requires minimal maintenance over its service life once correctly installed.

Engineering Design of the JUMO 902030

The JUMO 902030 is constructed from stainless steel 1.4571 throughout its sheath and connection head, screwing directly into the process via a spring-mounted threaded connection that maintains constant contact pressure between the sensing tip and the base of the installation point. Sheath diameters of 6, 7, or 8 mm are available, paired with insertion lengths ranging from 50 mm to 500 mm, giving specifiers the flexibility to match probe geometry precisely to vessel wall thickness or pipe diameter without ordering a custom part.

The Form J terminal head houses the wiring terminals for 3-wire or 4-wire connection and can optionally accept a head-mounted transmitter for direct 4–20 mA conversion at the measurement point, reducing cable-run signal degradation on larger sites. With an IP65 ingress protection rating and metrological registration plus SIL and PL functional-safety approvals, the 902030 is built to satisfy both general industrial duty and regulated process environments where documented compliance is part of the procurement specification.

Key Features

The JUMO 902030 screw-in RTD probe combines flexible configuration options with the build quality that JUMO temperature instrumentation is known for across regional industry.

  • Pt100, Pt500, or Pt1000 sensing elements in Class 1 or Class 2 accuracy give specifiers precise control over cost and measurement tolerance.
  • Sheath diameters of 6, 7, or 8 mm and insertion lengths from 50 to 500 mm allow the JUMO 902030 to be matched exactly to the installation geometry.
  • Corrosion-resistant 1.4571 stainless steel construction withstands humid coastal and industrial atmospheres common across Gulf facilities.
  • A spring-mounted screw-in connection maintains constant sensing-tip contact pressure for stable, repeatable readings.
  • Reliable sealing for both vacuum and overpressure applications extends the probe’s suitability across variable process conditions.
  • An optional Form J head-mounted transmitter converts the RTD signal to a 4–20 mA output directly at the sensor for simplified control-system integration.
  • Metrological registration together with SIL and PL functional-safety approvals supports use in regulated and safety-instrumented systems.
  • Fast response in both air and liquid media makes the 902030 suitable for dynamic thermostat-bath and process-monitoring duties.

Industrial Applications

The JUMO 902030 is widely deployed in mechanical engineering, gearbox and drivetrain manufacturing, thermostat baths, and heating and oven construction, as well as air-conditioning and refrigeration systems throughout the region. Food and beverage processors across Oman rely on its corrosion-resistant stainless steel construction and fast response time for pasteurization, cooking, and cold-chain monitoring, while district cooling plants and commercial HVAC systems in Muscat specify the 902030 wherever a configurable, screw-in RTD is needed on chilled-water and process-air loops. Meat-processing facilities and light-industrial manufacturers operating within Oman’s growing industrial zones also favor the 902030 for its metrological registration and documented accuracy class, both of which support internal quality and food-safety compliance programs.

With engineering support in Muscat, Seven Star LLC supplies the 902030 screw-in RTD probe to contractors, OEMs, and plant operators throughout Oman, the wider GCC, and specifically within the Sohar and Salalah economic zones, where manufacturing, food processing, and logistics facilities depend on correctly specified instrumentation and responsive technical support. Hospitality developments and hospital complexes across Muscat also incorporate 902030-class RTD probes into their kitchen, laundry, and building-utility systems, where accurate and stable temperature monitoring directly supports operational safety and energy efficiency.

Technical Specifications

The table below summarizes the core specifications of the JUMO 902030 screw-in RTD temperature probe as supplied by Seven Star LLC.

Parameter Specification
Model JUMO 902030
Sensor Type Pt100, Pt500, or Pt1000 resistance thermometer
Measuring Range −50°C to +400°C
Accuracy Class Class 1 or Class 2
Sheath Diameter 6, 7, or 8 mm
Insertion Length 50–500 mm (multiple options)
Wiring Configuration 3-wire or 4-wire
Housing Material Stainless steel 1.4571
Terminal Head Form J, with optional head-mounted transmitter
Ingress Protection IP65
Typical Applications Mechanical engineering, thermostat baths, gearbox construction, food & beverage, HVAC

Request a Quote for JUMO 902030 Screw-In RTD Temperature Probe

Seven Star LLC invites engineers, OEMs, and facility managers across Oman and the GCC to request a formal quotation for the JUMO 902030 screw-in RTD temperature probe. We supply on request with lead time confirmed at quotation, provide the full technical datasheet on request, and can connect you directly with our instrumentation division for configuration advice on sheath length, sensor type, and transmitter options.

Browse the full JUMO range or see more Temperature Instrumentation products supplied by Seven Star LLC in Oman and the GCC.

Datasheets & Documents
  • PDF Datasheet JUMO 902030 Screw-In RTD Temperature Probe Datasheet Download
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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.

FAQ

Questions about the JUMO 902030 Screw-In RTD Temperature Probe

Answers from our engineering team on installation, compatibility and integration.

01What sensor types and accuracy classes are available on the JUMO 902030?
The JUMO 902030 is available with Pt100, Pt500, or Pt1000 resistance elements in Class 1 or Class 2 accuracy, allowing specifiers to match the sensor to their required measurement tolerance.
02Does installing the 902030 require shutting down the process line?
The 902030 screws directly into the process connection point, and once the mounting boss is installed, sensor replacement or servicing takes only a few minutes without extended downtime.
03What sheath sizes and lengths does the JUMO 902030 support?
The 902030 is available in 6, 7, or 8mm sheath diameters with insertion lengths ranging from 50mm to 500mm, covering a wide range of pipe and vessel installation requirements.
04Can the 902030 integrate with older analog control systems?
Yes. An optional head-mounted transmitter can be fitted into the Form J terminal head to convert the raw RTD resistance signal into a standard 4-20 mA output compatible with both legacy analog loops and modern control systems.
05Is 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, supplying instruments with local technical support.