Brand: JUMO

JUMO TAROS H48 Ex High-Pressure Sensor for Ex Areas, 100 to 1000 bar, Type 404740

Name: JUMO TAROS H48 Ex High-Pressure Sensor | Seven Star LLC
Brand: JUMO
SKU: TAROS H48 Ex

Description

A thin-film high-pressure sensor up to 1000 bar for intrinsically safe circuits

The JUMO TAROS H48 Ex (type 404740) measures relative pressure of liquids, steam and gases from 100 bar up to 1000 bar (and 2000 to 15000 psi). It is built with thin-film technology, tolerates more than 10 million load changes and is marked II 2G Ex ib IIC T6 to T4 Gb and II 2D Ex ib IIIC T85 to T135 degC Db when connected to a certified intrinsically safe transmitter supply unit. The datasheet lists renewable energy, shipbuilding, mechanical and plant engineering, hydraulic systems and test bench construction as areas of application, and mentions an optional H2-ready version for mobile hydrogen applications with a test pressure up to 1050 bar.

Technical specifications

Parameter	Specification
Measuring principle	Thin-film technology; relative pressure, vacuum-proof
Ranges (bar)	0 to 100, 160, 200, 250, 350, 400, 600, 800, 1000; special range code 999
Ranges (psi)	0 to 2000, 3000, 5000, 8000, 10000, 15000
Linearity	0.1 to 0.25 % of span by range
Accuracy at 20 degC	0.3 to 0.4 % of span; -20 to +75 degC 0.45 to 1.0 % of span
Long-term stability	0.2 % of span per year or better
Overload / burst	100 bar: 200 / 500 bar; 250 bar: 500 / 1250 bar; 1000 bar: 2000 / 3000 bar
Output	4 to 20 mA, 2-wire; error signal 3.6 mA or less / 21.5 mA or more; linear exceedance to NAMUR NE 43 (3.8 to 20.5 mA)
Supply	DC 10 to 28 V SELV, nominal 24 V; influence 0.02 % per V; reverse-polarity protection
Burden	RL (UB – 10 V) divided by 0.022 A; influence 0.02 % per 100 ohm; output accuracy plus or minus 0.1 % at 16 mA
Response	Step response 90 % under 5 ms; warm-up under 0.2 s; temperature influence 75 ppm per K
Intrinsic safety values	Ui 28 V; Ii 115 mA; Pi 750 mW; Ci 40 nF; Li 1.5 uH
Ex markings (printed)	ATEX II 2G Ex ib IIC T6 to T4 Gb; II 2D Ex ib IIIC T85 to T135 degC Db; IECEx equivalent
Ambient / process temperature	T4 -40 to +85 degC; T5 -40 to +70 degC; T6 -40 to +55 degC
Storage temperature	-40 to +100 degC
Protection	IP66/IP67 with round plug; IP65 with line socket
Vibration / shock	20 g at 15 to 2000 Hz; 100 g for 1 ms
Materials	Process connection 316 Ti; membrane stainless steel 630; housing 304
Weight	Approx. 100 g (G 1/4 with M12)
Process connections	502 G 1/4 and 504 G 1/2 (DIN EN 837); 511 1/4-18 NPT and 512 1/2-14 NPT
Electrical connection	36 M12 round plug (IEC 61076-2-101, 4-pole); 61 line socket DIN EN 175301-803 form A (cable 6 to 8 mm)
Extra codes	061 UL; 062 DNV; 462 inverted output; 591 choke; 624 oil and grease free; 634 TAG; 769 calibration certificate; 871 inspection certificate 3.1; 1160 H2 ready
Order example	404740/0-466-405-502-20-36/000 (range code 466 = 0 to 250 bar)

Ordering notes and options

The 100 bar range (code 464) is marked in the datasheet as not suitable for hydrogen applications. Optional extras include UL or DNV approval versions, an inverted output, a restrictor in the pressure channel for pressure peaks, oil and grease free preparation, a TAG number, a calibration certificate and an inspection certificate 3.1 for accuracy. The datasheet also lists a zero-point correction by magnetic pen (part no. 00736330) for the teach function, which maintains reliable readings. Ambient temperature classes tie directly to the Ex temperature class: -40 to +85 degC for T4 and equipment protection level Gb or T135 degC for dust, falling to -40 to +55 degC for T6 or T85 degC.

The datasheet cites high accuracy across the entire operating temperature range, but note that process temperature is limited by the same T-class table, and that the operating location according to the UL approval is indoors. Climatic limits are relative humidity up to 90 % without condensation and up to 100 % including condensation, at site altitudes up to 2000 m above sea level, and electromagnetic compatibility follows DIN EN 61326-2-3:2022 with emission class B. Cables with a conductor cross section of at most AWG 16 and a diameter of 6 to 8 mm are required for the line socket version.

Installation, grounding and accessories

The device is grounded through its process connection. It may alternatively be grounded through the electrical connection, but grounding through both is not admissible. Supply must come from a certified intrinsically safe [Ex i] transmitter supply unit and a limited-energy circuit as described in the datasheet; JUMO lists an Ex-i repeater power supply and input isolating amplifier, part no. 00577948. UL-approved PUR cables of 2, 5 and 10 m (00776248, 00776250, 00776252), 4-pole M12 line sockets (00404585 straight, 00409334 angled), on-site calibration including DAkkS (00758363) and a service deployment (00427970) complete the accessory list.

For a non-Ex pressure transmitter see the published dTRANS p30 and the pressure instrumentation category. A useful enquiry states the pressure range, medium, temperature class needed, zone, approval marks required (UL, DNV or hydrogen), thread and connector.

Documents and quotation

Hosted for reference is the official JUMO data sheet 404740, version 1.00 dated 2026-05-20, ten pages in English, with technical data, process connections, wiring, order code and accessories. Seven Star LLC is an independent supplier in Muscat; send the range, approval and connection and we will prepare a quotation.

Datasheets & Documents

Datasheet JUMO TAROS H48 Ex data sheet 404740 V1.00 (EN, 10 pages) 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.

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