Brand: JUMO

JUMO 907037 Intrinsically Safe Humidity and Temperature Transmitter

Name: JUMO 907037 Ex Humidity Transmitter | Seven Star LLC
Brand: JUMO
SKU: JUMO 907037

Description

Intrinsically safe humidity and temperature transmitter for hazardous areas

The JUMO 907037 series is an intrinsically safe humidity and temperature transmitter that can be installed directly in hazardous areas, including Zone 0 per the data sheet. It is presented as the next-generation replacement for the long-running 907025 transmitter. The housing is aluminum EN AW-6082, IP66 (NEMA 4), with an optional graphical LCD and keypad for output configuration, measurement calibration and adjustment on site.

A detachable probe module makes service easy: probes can be removed for calibration outside the hazardous area, and a new probe loads current settings from the transmitter. Six probe options fit different jobs: /1 wall mount, /3 confined spaces, /4 pressurized spaces, /5 high temperature, /7 high humidity and /8 pressurized pipelines. The photo shows the wall-mount version.

Probe options include fixed and cable-connected versions with cable lengths of 2, 5 or 10 m, and several pressure fittings such as M22 x 1.5 and NPT 1/2 inch fitting bodies, which makes the series adaptable to existing sampling points.

Technical specifications

Parameter	Specification
Type / probes	907037/1 wall (-40 to +60 °C); /3 confined spaces (to +120 °C Teflon cable or +80 °C rubber cable); /4 pressurized (0 to 10 MPa); /5 high temperature; /7 high humidity; /8 pressurized pipelines (0 to 4 MPa)
Humidity sensor	HUMICAP R2 or L2; 0 to 100 % RH; accuracy +/-0.8 % RH (0 to 90 % RH) at +23 °C; T63 response 15 s
Factory calibration uncertainty	+/-0.5 % RH (0 to 40 % RH); +/-0.8 % RH (40 to 95 % RH)
Temperature	Pt1000 RTD class F0.1; -70 to +180 °C depending on probe; accuracy +/-0.1 °C at +23 °C
Calculated values	Dew point, wet-bulb temperature, absolute humidity, mixing ratio, water concentration, water mass fraction, vapor pressure, enthalpy
Outputs / supply	2 two-wire 4 to 20 mA outputs via safety barriers; operating voltage 12 to 28 V; typical analog accuracy +/-0.0625 % full scale
Ex marking (ATEX)	II 1 G Ex ia IIC T4 Ga; II 1 D Ex ia IIIC T200 85 °C Da
Ex marking (IECEx)	Ex ia IIC T4 Ga; Ex ia IIIC T200 85 °C Da; Japan CML 21JPN2417X
Safety data	Ui 28 V DC; Ii 100 mA; Ci 12.1 nF; Pi 700 mW; Li 16 uH; Tamb -40 to +60 °C; Pamb 0.8 to 1.1 bar
Environment	Electronics -40 to +60 °C; with display -20 to +60 °C; storage -40 to +70 °C
Housing	EN AW-6082 aluminum; IP66 (NEMA 4); transmitter 1500 g, fixed probe 320 g
Connections	Screw terminals 0.33 to 2.0 mm2; cable glands M20 x 1.5; conduit fitting NPT 1/2 inch or M16
Compliance marks	CE, RCM, China RoHS; EMC EN 61326-1 industrial environment; further regions listed as planned

Ordering the correct configuration

The order code is built from twelve blocks for the wall-mount transmitter: basic type extension, Ex version (IECEx global or ATEX Europe), sensor type, sensor protection (metallized PPS grid with steel mesh, sintered AISI 316L filter or PPS grid), accessories, display and keypad, output units (metric or non-metric), parameter for channels 1 and 2 (humidity 0 to 100 % RH, temperature ranges or customized), cable glands and transmitter accessories such as the 907025 retrofit mounting plate and a USB service cable.

Other probe types use similar blocks with sensor cable lengths of 2, 5 or 10 m and installation kits, for example the duct installation kit 210697 and Swagelok fittings. Choose the Ex version (ATEX or IECEx) to match the site rules, and state the required output ranges clearly.

The data sheet includes graphs of humidity accuracy as a function of temperature and of temperature accuracy over the full range. For a safe design, read the graph at your process temperature and add a margin where the application is critical.

Applications and installation

Typical jobs include dew point monitoring in gas-processing and chemical plants, inert-gas and drying systems, pharmaceutical solvent areas and any hazardous area where condensation or humidity affects safety or product quality. The pressurized probe types suit vacuum chambers, process pipelines and ball-valve mounted sampling points.

The two outputs are connected through safety barriers, so plan the intrinsically safe loop with barrier data that matches the entity parameters listed above. The 0.8 to 1.1 bar ambient pressure limit applies to the transmitter in the hazardous area. Check regional approvals, since the sheet lists USA, Canada, China and Korea as planned for future releases.

Calibration is simplified by the detachable probe: because the probe can be removed and calibrated outside the hazardous area, the plant does not need to open the Ex enclosure for routine calibration. A traceable calibration certificate is included, according to the data sheet, and a USB service cable is available as an accessory.

Always confirm the Ex marking, the permitted ambient temperature and the cable lengths in the certificate of the version you order, because the approval applies to the exact version and to the installation conditions it names.

Documents and quotation

Download the data sheet (JUMO 907037 series data sheet (EN)) from the attachment on this page. To request a quotation, give us the complete order code from the data sheet and your quantity, and we will come back with stock status and lead time. More products of this kind are collected in Temperature Instrumentation.

Datasheets & Documents

Datasheet JUMO 907037 series data sheet (EN) 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.