Brand: JUMO

JUMO Wtrans B Wireless Head Transmitter

Name: JUMO Wtrans B Wireless Head Transmitter | Seven Star LLC
Brand: JUMO
SKU: Wtrans B

Description

Programmable head transmitter that sends temperature wirelessly

The JUMO Wtrans B (type 707060) is a programmable head transmitter with wireless data transmission. Used with a Wtrans receiver, it records temperatures from RTD probes or thermocouples at stationary or mobile points. It can also measure resistances up to 10 kOhm and voltages up to 50 mV, and currents up to 20 mA with external shunts. Customer-specific linearization is possible.

The unit consists of a transmitter with an integrated transmission unit and an antenna-battery housing. It fits form B terminal heads, which are not part of the delivery, and the antenna-battery housing connects to the head with an M20 x 1.5 screw thread. Mounting in customer-specific terminal heads is also possible.

The measured values travel to the receiver on 868.4 MHz, a frequency that is largely immune to external interference. The receiver displays them and provides digital values on the RS485 interface, analog outputs or relay alarms.

A configurable transmitter detection (ID of up to five digits) lets several Wtrans transmitters share one receiver without confusion, and battery status monitoring warns before the cell is empty. The battery housing can be opened for easy exchange.

Technical specifications

Parameter	Specification
Type	707060/8-10/000, Wtrans B programmable head transmitter
RTD inputs	Pt100, Pt500, Pt1000 (+/-0.1 K from -100 to +200 °C, +/-0.2 K to 600 °C); Ni100, Ni500, Ni1000, Cu50, Cu100
Thermocouples	L, J, U, T, K, E, N, S, R, B, C, D, W3Re-W26Re, Chromel types, PLII and MoRe5-MoRe41
Resistance	50 Ohm to 10 kOhm resistance, potentiometer or transmitter; 0 to 50 mV voltage
Connection	2-wire or 3-wire; line resistance 11 Ohm per line (3-wire), 22 Ohm compensation (2-wire)
Radio	868.4 MHz; transmission interval 1 to 3600 s (default 15 s); 5-digit transmitter ID
Range	Open-air range max. 300 m with wall antenna holder and 3 m antenna cable
Battery	Lithium 3.6 V, 2.2 Ah, size AA; about 1 year at 15 s interval and room temperature
Cold junction	Internal Pt1000, +/-1 K
Ambient temperature	-30 to +85 °C; storage -40 to +85 °C
Protection type	IP00 open installation; IP65 in a suitable form B terminal head
Weight	Approx. 35 g for the transmitter
Setup	Setup program and optional OnlineChart through the receiver and USB

Order code and scope of delivery

The order code is 707060 / input / output / extra code. Input 8 is the standard with default settings and input 9 is customer-specific programming, for which you state the transmitter ID, transmission interval, measuring range and probe type in plain text. Output 10 means radio frequency 868.4 MHz for Europe.

Delivery includes the head transmitter with fastening material, the antenna-battery housing with plug connections protected against polarity reversal, a lithium battery ready for use and an operating manual. The terminal head, form B, is not included.

The Wtrans B works with universal receivers from software version 03.01 and is part of the Wtrans series with the receiver 902931 and the other transmitters.

Measuring circuit monitoring recognizes out-of-range values, and for RTD probes also short circuit and wire break, while thermocouples are monitored for wire break and range. A linearization with value pairs in tabular form or fourth-order polynomials can be configured on the receiver for special sensors.

Accuracy figures depend on the sensor. A Pt100 is measured within +/-0.1 K between -100 and +200 °C and within +/-0.2 K over the full range up to 600 °C, while thermocouple accuracy is stated in percent of the maximum measuring range, for example +/-0.1 % for type K from -80 °C.

Where it helps

A wireless head transmitter saves cable runs to rotating parts, moving carriers, ovens on rails, temporary test setups and distant tanks. Battery status monitoring shows when to change the battery, and the battery can be exchanged easily.

Mount the antenna so that it has a clear path to the receiver. Mounting the antenna directly on the receiver reduces the range by about 40 percent compared with the wall antenna holder and antenna cable.

The shorter the transmission interval, the shorter the battery life, and very high or very low ambient temperatures have the same effect. Keep the default 15 s unless the process needs faster updates, and note that the transmitter is rated for -30 to +85 °C in the terminal head.

The Wtrans series data sheet lists the system partners: the universal receiver 902931, the RTD probe transmitter Wtrans T (902930), the humidity, temperature and CO2 probe Wtrans E01 (902928) and the pressure transmitter Wtrans p (402060). Planning a mixed system is easier when all transmitters report to one receiver.

For configuration, a setup program is available as an accessory for the laptop, and its OnlineChart function can record measured values on a PC. Specify the sensor type and range in plain text when you order the customer-specific input 9.

Documents and quotation

The manufacturer data sheet (JUMO Wtrans B data sheet 707060 (EN, 11 pages)) is attached to this page as a PDF. Send the full type code you need through the quotation form and we will reply with availability and delivery terms; please confirm the options against your plant specification before ordering. Related items are listed under Temperature Instrumentation.

Datasheets & Documents

Datasheet JUMO Wtrans B data sheet 707060 (EN, 11 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.