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Brand: JUMO
JUMO AQUIS 500 RS Display Unit and Controller for Modbus Digital Sensors, Type 202569
Description
A controller that reads digital Modbus sensors for oxygen, disinfectants and turbidity
The JUMO AQUIS 500 RS (type 202569) is a display unit and controller for digital sensors that speak Modbus on RS485. It has one digital interface, one analog temperature input and one binary input, and it supplies the digital sensor itself. A backlit graphic LCD shows large digits, a bar graph or a trend display in plain-text menus, and up to two relay changeover contacts and two freely scalable analog outputs allow switching, alarm and P, PI, PD or PID control tasks. The datasheet lists dissolved oxygen sensors 202613 and 202614, free and total chlorine, chlorine dioxide and ozone, hydrogen peroxide and peracetic acid, bromine and the turbidity sensor 202670 as supported measurements.
Technical specifications
| Parameter | Specification |
|---|---|
| Inputs | 1 Modbus RS485 master (2400 to 38400 baud); 1 analog temperature input Pt100, Pt1000 or NTC/PTC up to 4 kohm (2- or 3-wire); 1 binary input |
| Supported sensors | 202613 and 202614 oxygen; 202630, 202631, 202634, 202636, 202637 amperometric tecLine; 202670 NTU; freely configurable Modbus sensor |
| Sensor supply | DC 24 V (20.4 to 28.8 V) max. 30 mA; DC 5 V (5.1 to 5.25 V) max. 100 mA; DC 12 V max. 10 mA for a proximity switch |
| Analog outputs | Up to 2, 0(4) to 20 mA or 0(2) to 10 V, galvanically isolated, freely scalable |
| Relay outputs | Up to 2 changeover contacts; limit, alarm window, pulse length, pulse frequency, modulating, pulse and alarm functions |
| Display | LCD graphic 120 x 32 pixels, backlight programmable; languages English, French, German |
| Calibration | Zero point, end value, 2-point, slope depending on sensor; calibration logbook (5 or 10 entries by sensor); calibration and wash timers |
| Sampling | 500 ms for tecLine sensors; 1 s for NTU; oxygen sensor 1 to 60 s adjustable |
| Supply voltage | AC 110 to 240 V (code 23); AC/DC 20 to 30 V (25); DC 12 to 24 V (30) |
| Power consumption | Approx. 14 VA |
| Case / protection | ABS; IP67 surface-mounted, front IP65 and rear IP20 panel-mounted; cable glands 3 x M16 and 2 x M12 |
| Ambient temperature | -10 to +50 degC for accuracy; -15 to +65 degC operating; storage -30 to +70 degC |
| Weight | Approx. 900 g |
| Approvals | UL E201387 (UL 61010-1, CAN/CSA C22.2 No. 61010-1) for all versions; EMC DIN EN 61326-1, class B |
| Order example | 202569/20-654-888-000-310-000-23/000 |
| Stock versions | 202569/20-654-888-000-000-000-23/000 00613453; 202569/20-654-888-888-310-310-23/000 00602275; 202569/20-654-888-000-310-000-23/000 00602276 |
Function highlights from the datasheet
Three display modes serve different tasks: large digits, a trend arrow that shows direction and speed of change, and a freely scalable bar graph. The unit offers a min/max memory, keypad lock, hold mode and alarm suppression through the binary input, a wash timer that stops the control while a sensor wash runs, and a simulation function for dry-run start-up. Setup is by menu, by an optional PC program on CD-ROM (00483602) or by a PC interface cable (00456352), which also allows extra user languages to be downloaded.
For oxygen measurement the unit can compensate salinity and ambient pressure, and it can protect the luminescence layer of the ecoLine O-DO by lowering the sampling rate. For membrane-covered tecLine sensors a flow monitor type 202811/20 can be wired to the binary input to hold the controller when inflow drops.
Ordering, mounting and companions
Choose panel (10) or surface-mounted (20) case, the number of analog outputs and relays, and the supply voltage. Mounting accessories listed include a protective roof (00398161), pipe mounting kit (00483664), DIN-rail kit (00477842), support pillar with pedestal, cantilever arm and chain (00398163), a holder for a suspended fitting (00453191) and a rear case wall kit (00506351). The device is designed for on-site use, and a ventilation screw with a PTFE membrane prevents condensation on the IP67 case.
Control logic is flexible. The two relay contacts can act as limit switches with programmable hysteresis and on and off delays, as an alarm window, as a pulse contact that switches on and off after a defined time, or as pulse-length, pulse-frequency or modulating controllers on the main value, while switching functions can also be assigned to the auxiliary input. Analog outputs can carry either measured values or the controller output, and their behaviour during calibration, fault and hold states is programmable individually. Operation is protected by a code word, with parameters individually released if needed.
Published related items include the dTRANS AS 02 and AQUIS touch P; the liquid analytical systems category lists further liquid analysis equipment. For an enquiry list the sensor type and code, the number of outputs and relays, supply voltage, mounting method and whether a temperature probe or flow monitor is needed.
Documents and quotation
Hosted for reference is the official JUMO data sheet 202569, version 6.00 dated 2021-12-22, fourteen pages in English, covering functions, technical data, wiring, order code and accessories. Seven Star LLC is an independent supplier in Muscat; send the order code and sensor type and we will prepare a quotation.
Datasheets & Documents
- Datasheet JUMO AQUIS 500 RS data sheet 202569 V6.00 (EN, 14 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.
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Frequently Asked Questions
Which sensors can the unit read?
Modbus RS485 sensors such as the 202613 and 202614 oxygen sensors, tecLine disinfectant sensors, the 202670 turbidity sensor and a freely configurable sensor.
Does it power the sensor?
Yes, it supplies the digital sensor with DC 24 V (max. 30 mA) or DC 5 V (max. 100 mA) depending on the sensor.
What outputs are available?
Up to two isolated analog outputs (0 to 20 mA, 4 to 20 mA or 0 to 10 V) and up to two relay changeover contacts.
What protection class does it have?
IP67 in the surface-mounted case; front IP65 and rear IP20 for panel mounting.
Which supply voltages can be ordered?
AC 110 to 240 V, AC/DC 20 to 30 V or DC 12 to 24 V.
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