Brand: JUMO

JUMO dTRANS pH 02 Analytical Transmitter Controller

Name: JUMO dTRANS pH 02 Analytical Transmitter – Manual & Quote
Brand: JUMO

Description

Overview

JUMO dTRANS pH 02 is a compact multichannel transmitter and controller for analytical measurement, controlling and recording pH value, redox potential, ammonia (NH3) concentration, temperature, and flow rate. Configurable as a two-state, three-state, three-step, or continuous P, PI, PD, or PID controller, the JUMO dTRANS pH 02 is the current-generation successor within JUMO’s compact analytical indicator/controller platform, replacing the earlier dTRANS Az 01 series with an updated modular design and expanded input/output flexibility.

With fast quotation turnaround and technical support, Seven Star LLC proudly supplies the JUMO dTRANS pH 02 to water treatment facilities, chemical dosing systems, and process industries across Oman and the GCC. Customers purchasing through Seven Star LLC receive a formal quotation, the manufacturer datasheet, and technical support based in the Sultanate of Oman.

Measurement Principle

The JUMO dTRANS pH 02 accepts a main input from a pH combination electrode or redox sensor, measuring the small millivolt potential generated at the sensor membrane and converting it into a calibrated pH or redox value using stored calibration coefficients. An additional analog input accommodates a compensation thermometer or a second process variable such as ammonia concentration or a standard 0(4)–20 mA / 0–10 V signal, while two binary inputs support flow-pulse counting or external interlocks, giving the instrument the flexibility to serve as a combined measurement and control point for a treatment or dosing process.

Once the process value is acquired, the instrument’s internal control algorithm – selectable between two-state, three-state, three-step, or continuous P, PI, PD, or PID modes – drives up to seven relays or three analog outputs to actuate dosing pumps, valves, or alarm circuits. Because the measurement itself is electrochemical rather than mechanical, there is no moving part in the sensing path to wear, and the JUMO dTRANS pH 02‘s calibration logbook and electrode-monitoring function give operators a documented, traceable record of sensor health over time.

Engineering Design of the JUMO dTRANS pH 02

The JUMO dTRANS pH 02 is housed in an ultra-compact enclosure suited to either a panel cutout or a surface-mounted control cabinet installation, with a front panel rated IP65 to resist wash-down and dust ingress in industrial water treatment areas. The plain-text display supports 13 integrated user languages and offers a choice of large digits, bar graph, or trend visualization, allowing operators across regional plant teams to read the process state without needing to memorize numeric codes.

Electrically, the base unit provides one main input, one analog input, and two binary inputs, with up to three expansion slots accepting analog output, relay, or PhotoMOS® relay option boards to scale the instrument’s output count up to seven relays or three isolated analog outputs. A wash timer function automates periodic cleaning cycles for self-cleaning or spray-cleaned electrodes, and the built-in math and logic module allows derived process values – such as a combined pH/ORP dosing interlock – to be computed directly within the transmitter rather than in an external PLC.

Key Features

The JUMO dTRANS pH 02 combines analytical measurement and closed-loop control in a single compact instrument. Key characteristics include:

Multichannel measurement of pH, redox potential, ammonia concentration, temperature, and flow within one device.
Selectable two-state, three-state, three-step, or continuous P, PI, PD, and PID control functions for dosing and detoxification processes.
Ultra-compact housing suitable for panel or surface-mounted control cabinet installation, rated IP65.
Choice of display visualization – large digits, bar graph, or trend – with 13 integrated user languages.
Up to three analog outputs and up to seven relays across three optional expansion slots.
Built-in math and logic module for derived process calculations without an external controller.
Wash timer function to automate cleaning cycles for self-cleaning or fouling-prone electrodes.
Integrated calibration logbook and electrode-monitoring for documented sensor traceability.

Industrial Applications

The JUMO dTRANS pH 02 is widely deployed in chemical dosing and neutralization systems, cooling water treatment, wastewater detoxification, and process industries where pH, redox, or ammonia control directly affects product quality or regulatory compliance. Its continuous PID control capability makes it well suited to closed-loop detoxification and pH-adjustment skids, while the wash timer and electrode-monitoring functions reduce maintenance intervention in fouling-prone process streams such as cooling tower makeup water and industrial effluent treatment.

With engineering support in Muscat, Seven Star LLC supplies the JUMO dTRANS pH 02 to desalination plants, district cooling operators, and industrial water treatment facilities throughout Oman and the wider GCC, including operations within the Sohar and Salalah economic zones. Regional customers benefit from technical support with selection and access to JUMO’s engineering documentation through Seven Star LLC’s technical instrumentation division.

Technical Specifications

The table below summarizes the core technical specifications of the JUMO dTRANS pH 02 compact analytical transmitter/controller.

Parameter	Specification
Model	JUMO dTRANS pH 02 (Type 202551)
Measurands	pH, redox, NH3, temperature, or flow
Enclosure options	Panel case (front IP65) or surface-mounted case
Mounting	Surface or control cabinet mounting
Inputs	1 main input, 1 analog input, 2 binary inputs, further inputs via option boards
Outputs	Up to 3 analog outputs; up to 7 relays
Control functions	Two-state, three-state, three-step, continuous P, PI, PD, PID
Special features	Math and logic module, wash timer, calibration logbook
Protection type	IP65
Power supply	AC 110–240 V, +10/-15%, or 20–53 V AC/DC
Areas of application	Universal analytical measurement and control

Request a Quote for JUMO dTRANS pH 02 Analytical Transmitter Controller

Seven Star LLC supplies the JUMO dTRANS pH 02 analytical transmitter/controller on request with regional technical support. Contact our instrumentation division for a formal RFQ, to check current availability and lead time, or to download the complete technical datasheet for project specification.Seven Star LLC supplies this item on request with the manufacturer documentation, and availability and lead time are confirmed at quotation.

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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.

FAQ

Questions about the JUMO dTRANS pH 02 Analytical Transmitter Controller

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

01What does the JUMO dTRANS pH 02 measure and control?

The JUMO dTRANS pH 02 measures and controls pH value, redox potential, ammonia (NH3) concentration, temperature, and flow rate, and can operate as a two-state, three-state, three-step, or continuous P, PI, PD, or PID controller.

02Is this the replacement for the JUMO dTRANS Az 01?

Yes. The JUMO dTRANS Az 01 has been discontinued by the manufacturer, and the JUMO dTRANS pH 02 is the current-generation analytical indicator/controller in the same compact modular platform, offering an updated design and equivalent or expanded functionality.

03What sensors are compatible with the main input?

The main input accepts pH combination electrodes and redox sensors, while the additional analog input supports a compensation thermometer, ammonia sensor, or standard 0(4)-20 mA and 0-10 V signals.

04Does the device support automated electrode cleaning?

Yes, the JUMO dTRANS pH 02 includes a wash timer function that automates periodic cleaning cycles for self-cleaning or spray-cleaned electrodes, reducing maintenance intervention in fouling-prone process streams.

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 hardware with local technical support.