Electrodes and Sensors – Precise Measurement Technology for Water Analysis and Process Monitoring

JUMO diraVIEW 108 - Digital indicator Version: Standard with factory settings Power supply: AC 110-240 V +10/-15%, 48 to 63 Hz Option 1-4: not assigned Extra code: without  1 analogue input  2 digital inputs (digital input 1 as an alternative to logic output)  2 relay (normally open contact)  1 logic output 0/14 V (alternative to digital input 1)  Display and storage of min/max values  Tare function  Hold function  Tare function for weighing applications  Customised linearisation with the option of defining up to 40 value pairs or a polynomial  Timer function  Monitoring of 4 limit values  Customised user levels  Optional customised application using structured text (ST code)  Optional maths and logic function  Simple installation thanks to push-in technology  Optional analogue output  Optional RS485 or Ethernet interface  Additional analogue and digital inputs via the interface This digital indicator consists of five freely configurable and universally applicable devices in different DIN formats for displaying temperature, pressure and other process variables. The process variables and parameters are displayed on two 18-segment LCD displays. Types 701512, 701513 and 701514 are also equipped with a pixel matrix LCD display for displaying text. In addition, all devices have separate display elements for the switching positions of the outputs and the timer. They are operated via a membrane keypad with four buttons and are suitable for use in harsh environmental conditions thanks to their high IP65 protection rating. Inputs and outputs Each device type is equipped with a universal analogue input that is suitable for resistance thermometers, thermocouples, current, voltage, resistance transmitters and resistance/potentiometers. In addition, each device has a digital input, a switchable digital input/output. With the exception of type 701510, which has one relay output (normally open contact) as standard, all other types have two relay outputs (normally open contact). The digital inputs are designed for connection with a potential-free contact. The digital output provides a logic signal from 0 to 14 V. Furthermore, additional optional  Relay outputs (normally open contact)  Logic outputs (0 to 14 V)  PhotoMOS® relay outputs  Analogue output (0 to 10V / 0 to 20 mA) are available. Certain inputs and outputs cannot be used simultaneously (see notes in the connection diagram) Signal assignment via selectors The input signals and all internal signals are available in so-called selectors (analogue selector, digital selector) for further use in the device. The control signals for the outputs are also assigned via selectors, which enables flexible assignment of signals and functions. Interfaces The device has a USB device interface (Micro-B socket on the rear), which is specially designed for connection to a PC for the setup programme. During configuration, the device is supplied with power via this USB interface so that no mains supply is required. An optional RS485 interface is available, which is intended for communication with a Modbus master (Modbus RTU operating mode). The master can transmit up to two analogue values and two binary values to the device, which are used there as external input signals. In addition, two analogue flags and two digital flags (binary) are available. An Ethernet interface is also available as an option, which supports the Modbus TCP and Modbus RTU/ASCII operating modes via TCP. The same parameters and process values can be transmitted via this interface as via the RS485 interface. Power supply Two power supply variants are available:  AC110 to 240 V  AC/DC 20 to 30 V 48 to 63 Hz in each case Electrical connection Simple and time-saving connection using practical spring-loaded terminals (push-in technology) Min-max function Using the min-max function, the lowest and highest measured values are saved and continuously updated. It is possible to display these values separately or alternately with the current measured value. A binary signal makes it possible to reset the stored values and return them to the current measured value. Hold function The hold function "freezes" the value of the indicator, which means that this value is displayed for as long as the controlling binary signal is active. Tare function The tare function makes it possible to set the value of the indicator to zero, controlled by a binary signal (for weighing applications). The currently displayed value is added to the tare value each time. Another binary signal can be used to reset the tare value to zero so that the current value appears on the display again. Limit value monitoring The device has four limit value monitors, each with eight configurable alarm functions. Any analogue signal can be selected from a selector for monitoring. The limit values can either be absolute values or depend on another analogue signal. Various special functions are available, such as  On/off delay  Wiper function  Alarm suppression during the switch-on phase or in the event of parameter changes  Alarm latching  Latching with acknowledgement available. These extensive functions enable flexible and precise realisation of alarm and limit value functions. Digital control signals This function enables the configuration of up to 4 digital control signals. The control signal is either formed by an AND/OR/XOR combination of up to three selectable binary signals or a single binary signal is used as an input signal and can be output as a pulsed signal, delayed signal, wiper signal or edge-triggered signal. In the latter case, the rising or falling edge of the binary signal is determined and the output signal is activated for the duration of a sampling interval. The output signal can be inverted in all these cases. Timer Once the timer is activated, an invertible signal is generated for the specified timer runtime. The timer can also be started after a lead time has elapsed or a tolerance limit has been reached. After the timer has elapsed, a timer end signal can be generated that is either time-limited or requires acknowledgement. These timer functions enable a wide range of time-dependent processes. Service counter The service counter can either count the number of switching operations of a binary signal or measure its switch-on duration. As soon as the adjustable limit value is reached, a binary signal is activated that must be acknowledged. An operating hours counter is also available, which records the operating time of the device. Maths and logic function The optional maths and logic function (extra code) can be used to link analogue or binary values. Up to four freely configurable maths or logic formulas can be created using the setup program. The results are then available for further use in the analogue or digital selector. Individual user level The individual user level offers space for up to 16 editable configuration parameters. These parameters can be selected individually in the setup programme. Setup programme With the setup programme, data records can be created, edited, transferred to the device and read out from there. The data can be saved and printed out. The programme also allows the user to easily create and print out a connection diagram showing the current terminal assignment of the device. Startup: The startup function enables the recording of process variables during commissioning for a maximum of 24 hours. The recorded diagrams are available on the PC and can be used for system documentation, for example. Online data: The current process variables of the device are displayed in a separate window. Customer-specific linearisation Individual linearisation according to customer requirements also makes it possible to use sensor signals with special characteristics. Programming is carried out in the setup program either using your value table with up to 40 value pairs or using a formula (4th order polynomial). The device supports 2 customer-specific linearisations. Structured text The "Structured text" option (extra code) allows the user to develop a customised application. This application is created using the ST editor, which is part of the setup programme, and uses the "Structured text" PLC programming language. Once completed, the application is transferred to the device and executed continuously. Online debugger functions are available in the ST editor for troubleshooting and testing. With the help of the ST code, it is possible to display up to 10 stored text messages depending on the application.

JUMO diraVIEW 132 - Digital indicator Version: Standard with factory settings Power supply: AC 110-240 V +10/-15%, 48 to 63 Hz Option 1-4: not assigned Extra code: without 1 analogue input 2 digital inputs (digital input 1 as an alternative to logic output) 1 relay (normally open contact) 1 logic output 0/14 V (alternative to digital input 1) Display and storage of min/max values Tare function Hold function Tare function for weighing applications Customised linearisation with the option of defining up to 40 value pairs or a polynomial Timer function Monitoring of 4 limit values Customised user levels Optional customised application using structured text (ST code) Optional maths and logic function Simple installation thanks to push-in technology Optional analogue output Optional RS485 or Ethernet interface Additional analogue and digital inputs via the interface This digital indicator consists of five freely configurable and universally applicable devices in different DIN formats for displaying temperature, pressure and other process variables. The process variables and parameters are displayed on two 18-segment LCD displays. Types 701512, 701513 and 701514 are also equipped with a pixel matrix LCD display for displaying text. In addition, all devices have separate display elements for the switching positions of the outputs and the timer. They are operated via a membrane keypad with four buttons and are suitable for use in harsh environmental conditions thanks to their high IP65 protection rating. Inputs and outputs Each device type is equipped with a universal analogue input that is suitable for resistance thermometers, thermocouples, current, voltage, resistance transmitters and resistance/potentiometers. In addition, each device has a digital input, a switchable digital input/output. With the exception of type 701510, which has one relay output (normally open contact) as standard, all other types have two relay outputs (normally open contact). The digital inputs are designed for connection with a potential-free contact. The digital output provides a logic signal from 0 to 14 V. Furthermore, additional optional  Relay outputs (normally open contact)  Logic outputs (0 to 14 V)  PhotoMOS® relay outputs  Analogue output (0 to 10V / 0 to 20 mA) are available. Certain inputs and outputs cannot be used simultaneously (see notes in the connection diagram)Signal assignment via selectorsThe input signals and all internal signals are available in so-called selectors (analogue selector, digital selector) for further use in the device. The control signals for the outputs are also assigned via selectors, which enables flexible assignment of signals and functions. InterfacesThe device has a USB device interface (Micro-B socket on the rear), which is specially designed for connection to a PC for the setup programme. During configuration, the device is supplied with power via this USB interface so that no mains supply is required.An optional RS485 interface is available, which is intended for communication with a Modbus master (Modbus RTU operating mode). The master can transmit up to two analogue values and two binary values to the device, which are used there as external input signals. In addition, two analogue flags and two digital flags (binary) are available. An Ethernet interface is also available as an option, which supports the Modbus TCP and Modbus RTU/ASCII operating modes via TCP. The same parameters and process values can be transmitted via this interface as via the RS485 interface. Power supplyTwo power supply variants are available:  AC110 to 240 V  AC/DC 20 to 30 V 48 to 63 Hz in each case Electrical connectionSimple and time-saving connection using practical spring-loaded terminals (push-in technology) Min-max functionUsing the min-max function, the lowest and highest measured values are saved and continuously updated. It is possible to display these values separately or alternately with the current measured value. A binary signal makes it possible to reset the stored values and return them to the current measured value. Hold functionThe hold function "freezes" the value of the indicator, which means that this value is displayed for as long as the controlling binary signal is active. Tare functionThe tare function makes it possible to set the value of the indicator to zero, controlled by a binary signal (for weighing applications). The currently displayed value is added to the tare value each time. Another binary signal can be used to reset the tare value to zero so that the current value appears on the display again. Limit value monitoringThe device has four limit value monitors, each with eight configurable alarm functions. Any analogue signal can be selected from a selector for monitoring. The limit values can either be absolute values or depend on another analogue signal. Various special functions are available, such as  On/off delay  Wiper function  Alarm suppression during the switch-on phase or in the event of parameter changes  Alarm latching  Latching with acknowledgement available. These extensive functions enable flexible and precise realisation of alarm and limit value functions. Digital control signalsThis function enables the configuration of up to 4 digital control signals. The control signal is either formed by an AND/OR/XOR combination of up to three selectable binary signals or a single binary signal is used as an input signal and can be output as a pulsed signal, delayed signal, wiper signal or edge-triggered signal. In the latter case, the rising or falling edge of the binary signal is determined and the output signal is activated for the duration of a sampling interval. The output signal can be inverted in all these cases. TimerOnce the timer is activated, an invertible signal is generated for the specified timer runtime. The timer can also be started after a lead time has elapsed or a tolerance limit has been reached. After the timer has elapsed, a timer end signal can be generated that is either time-limited or requires acknowledgement. These timer functions enable a wide range of time-dependent processes. Service counterThe service counter can either count the number of switching operations of a binary signal or measure its switch-on duration. As soon as the adjustable limit value is reached, a binary signal is activated that must be acknowledged. An operating hours counter is also available, which records the operating time of the device. Maths and logic functionThe optional maths and logic function (extra code) can be used to link analogue or binary values. Up to four freely configurable maths or logic formulas can be created using the setup program. The results are then available for further use in the analogue or digital selector. Individual user levelThe individual user level offers space for up to 16 editable configuration parameters. These parameters can be selected individually in the setup programme. Setup programmeWith the setup programme, data records can be created, edited, transferred to the device and read out from there. The data can be saved and printed out. The programme also allows the user to easily create and print out a connection diagram showing the current terminal assignment of the device. Startup: The startup function enables the recording of process variables during commissioning for a maximum of 24 hours. The recorded diagrams are available on the PC and can be used for system documentation, for example. Online data: The current process variables of the device are displayed in a separate window. Customer-specific linearisationIndividual linearisation according to customer requirements also makes it possible to use sensor signals with special characteristics. Programming is carried out in the setup program either using your value table with up to 40 value pairs or using a formula (4th order polynomial). The device supports 2 customer-specific linearisations. Structured textThe "Structured text" option (extra code) allows the user to develop a customised application. This application is created using the ST editor, which is part of the setup programme, and uses the "Structured text" PLC programming language. Once completed, the application is transferred to the device and executed continuously. Online debugger functions are available in the ST editor for troubleshooting and testing.With the help of the ST code, it is possible to display up to 10 stored text messages depending on the application.

2-electrode principleproven versions for industrial use measuring ranges 0 ... 1 mS/cm (K = 0.1) or 0.01 ... 15 mS/cm (K = 1.0) temperature range up to 55 °C, maximum pressure up to 6 bar at 25 °C JUMO ecoLine CR-PVC conductive 2-electrode conductivity sensorBrief description: Conductivity sensors of the 202923 series are used, for example, in general water technology, cooling and air-conditioning systems, drinking and bathing water, or in industrial rinsing and process water circuits. The body material PVC limits the application to medium temperatures up to 55 °C. Two versions with cell constants K = 0.1 or 1.0 are available. Versions with the common thread sizes G 3/4" or G 1" or a plug-in version are available for installation. The plug-in version is used, for example, with the matching PVC tees in nominal sizes DN 25, 32 and 40 and allows the sensor to be quickly dismantled for cleaning or maintenance. The electrical connection is made either via a detachable device plug or via a fixed cable connection. The overall construction and the parts in contact with the medium are physiologically harmless. The electrode material is stainless steel (K = 0.1) or special graphite (K = 1.0). The optionally integrable temperature sensor allows simultaneous recording of the medium temperature for temperature compensation in downstream measuring amplifiers.Stainless steel variant K = 0.1 The sensor has 3 metallic pin electrodes. The two outer pins are electrically connected and form one pole of the 2-electrode conductivity sensor. The counter electrode is the middle stainless steel pin. This design achieves very high measurement precision with low stray fields. A temperature sensor can be integrated in the middle pin. Graphite variant K = 1.0 For physical reasons, special graphite is used as the electrode material for higher conductance values. The two graphite electrodes are completely integrated in the electrode shaft. The optional temperature sensor is located in a stainless steel sleeve that is immersed in the measured medium. Operating principleThe sensors of the 202923 series are 2-electrode conductivity sensors. An AC voltage is applied to them by the transmitter. The current flowing across the liquid and the electrodes is determined by the conductivity of the liquid

pH/ORP electrodes with glass shaftSelected version: without temperature sensor (not available for this series, only for Jumo tecLine and tecLine HD series) Screw head S8 Pg13.5 Ceramic diaphragm Installation length 120mm (standard) Type code (can also be found on your electrode): Type 201005/51-18-22-0000-00-120/000 ,part no. 00405532 Type 201010/51-22-22-0000-00-120/000 ; part no. 00413906 Type 201005/51-18-60-1000-76-120/000 ; part no. 00459671The electrodes of the JUMO ecoLine series are high-quality measuring sensors with a favourable price/performance ratio.Active part pHJUMO ecoLine electrodes  are equipped with the low-resistance JUMO UW glass. This guarantees fast and reliable measurement results.Active part ORPA robust platinum tip provides reliable measured values and allows easy cleaning of the sensor.Reference systemA polymerised KCl solid electrolyte is used in the glass version. This is ideally suited for measurement in general aqueous media. aqueous media. For measurements in media with lower ion content or at high flow rates, the electrolyte can be the electrolyte can be equipped with an optional "salt reservoir" to increase the service life (if wished, please use our configurator). The JUMO cartridge discharge system, which has been tried and tested for years, is used as the reference system. Here, the electrolyte remains free of silver ions over the service life of the sensor. and therefore less susceptible to electrode poisons.Optionally, the electrodes can be supplied in a storage container (quiver). This is recommended for sporadic use of the sensor, for refreshing the sensor after longer, intensive use or for longer storage periods.All sensors can be supplied as OEM versions on request. Special versions on request.Areas of applicationDrinking water monitoring and treatmentSwimming pool - Aquaristics (also seawater aquaristics)Greenhouse technologyLightly polluted industrial, process and waste waterRainwater, pond water and surface waterhand-held measuring devicesNot recommended forgalvanic water treatmentindustrial process and waste waterultrapure watertherapeutic bathsbiotechnology, sterilisation processes

pH/ORP electrodes with plastic shaft and clip-on protection basketSelected version:Without temperature sensor (not available for this series, only for Jumo tecLine and tecLine HD series)Screw head S8 Pg13.5Glass silk diaphragmPlastic shaft PEIMounting length 120mm (standard)Type code (can also be found on your electrode): Type 201005/53-18-22-0000-00-120/000 ; part no. 00357022 Type 201010/53-22-22-0000-00-120/000 ; Part No. 00357020 The electrodes of the JUMO ecoLine series are high-quality measuring sensors with a favorable price/performance ratio. Active part pHThe JUMO ecoLine plastic electrodes with clip-on protection basket are equipped with the low-resistance JUMO UW glass. This guarantees fast and reliable measurement results. Active part ORPThe robust platinum tip ensures reliable measured values and is also easy to clean. Reference systemA polymerised KCl solid electrolyte is used in the PEI plastic shaft version. This is ideally suited for measurements in general aqueous media. For measurements in media with fewer ions or at high flow rates, the electrolyte can be equipped with an optional "salt reservoir" to increase the service life. The JUMO cartridge discharge system, which has been tried and tested for years, is used as the reference system. Here, the electrolyte remains free of silver ions over the service life of the sensor and is therefore less susceptible to electrode poisons. JUMO ecoLine electrodes in the plastic shaft version made of transparent PEI have a glass-fiber diaphragm. A clip-on protective cage protects the sensor when used with hand-held measuring instruments. Optionally, the electrodes can be supplied in a storage container (quiver). This is recommended if the sensor is only used sporadically, for refreshing the sensor after longer, intensive use or for longer storage periods. All sensors can be supplied as OEM versions on request. Special versions on request.Areas of applicationDrinking water monitoring and treatmentSwimming poolAquaristics (also seawater aquaristics)Greenhouse technologyLightly polluted industrial, process and waste waterRainwater, pond water and surface waterhand-held measuring devicesNot recommended forgalvanic water treatmentindustrial process and waste waterultrapure watertherapeutic bathsbiotechnology, sterilisation processes

JUMO eTRON T100 - electronic thermostat with timer function for mounting on 35 mm top-hat rails  Version: Standard with factory settings  Input: resistance thermometer Pt100, Pt1000, KTY2X-6  Power supply: AC 230 V +10/-15%, 48 to 63 Hz  Option: Digital output PhotoMOS ® relay (connection of resistance thermometers in three-wire circuit is not possible)  Extra code: without  Available in 5 different measuring groups  Intuitive operation and configuration both directly on the device and via the setup programme using the USB interface  User area with 8 adjustable parameters  Data logger functionality for recording measurement data  Dot matrix display with 64 x 80 pixels and support for 4 national languages  Service and operating hours counter for monitoring device utilisation  Connection via PCB terminals with push-in technology for easy installation  Use of 10A relays (changeover contacts) for reliable switching  Option for customer-specific linearisation of the measurement results in the setup program  Limit value monitoring for precise control and monitoring of processes  Timer function for time-controlled execution of actions The digital thermostat measures the temperature using resistance thermometers, thermocouples or a current of 0(4) to 20 mA and can be configured as a simple heating or cooling thermostat depending on the selected mode. The thermostat function (heating or cooling) can be started or limited in time using the timer function. The switching states of the relay and digital output, as well as the actual and setpoint values, are shown simultaneously on a backlit display with a resolution of 64 x 80 pixels. The display language can be switched between German, English, French and Spanish. It is operated via four buttons on the front, while the electrical connection is made via print terminals with push-in technology. PhotoMOS® relays for limit value monitoring or a digital input for connecting a potential-free contact can be added as an option. A setup programme is available for easy configuration.

Brief description The JUMO flowTRANS US W01 DN 15 is an ultra-fast ultrasonic flowmeter for precise measurements in water and process applications. It measures conductive and non-conductive media such as drinking water, process water, or ultrapure water with absolutely no wear. The standard calibration reliably covers the entire DN 15 measuring range. Thanks to its metal-free, corrosion-resistant housing, the device is ideal for demanding and chemically aggressive environments. It can be easily installed in horizontal or vertical plastic or metal pipes. The non-contact ultrasonic technology ensures low maintenance costs and high process reliability. Typical areas of application include cooling towers, wash water recovery, reverse osmosis and many other industrial applications. A large measuring range, robust materials, and flexible signal outputs (4–20 mA, pulse) enable reliable integration into existing systems. The device offers precise flow measurement without moving parts. Buy the JUMO flowTRANS US W01 DN 15 online now and benefit from efficient, durable measurement technology. JUMO flowTRANS US W01 DN 15 – buy online Standard calibration – ultra-fast, precise and low-maintenance The JUMO flowTRANS US W01 ultrasonic flowmeter DN 15 is the perfect choice for all users who are looking for a highly accurate, reliable, and low-maintenance solution for flow measurement in water and process measurement technology. The standard version with standard calibration covers the entire measuring range for DN 15, making it ideal for typical process flows in industrial and municipal applications. This model relies on ultra-fast ultrasonic transit time difference measurement – without any moving parts, completely wear-free and independent of conductivity. This means that both conductive and non-conductive media, including ultrapure water, can be measured accurately. If you want to buy a powerful flow meter online that works reliably even in demanding environments, the JUMO flowTRANS US W01 DN 15 is the ideal choice. Product highlights – Ultra-fast and extremely powerful High-precision ultrasonic technology Non-contact measurement without wear and without moving parts Metal-free, corrosion-resistant housing – ideal for demanding media Large measuring range for flexible application options Easy integration into existing plastic or metal pipelines Low maintenance and long-term reliability Installation without T-piece Description: Precise flow measurement for conductive and non-conductive media While magnetic inductive measuring methods require a minimum conductivity, the JUMO flowTRANS US W01 can also reliably measure non-conductive liquids such as ultrapure water or process water. Thanks to the high-quality plastic tube (PPSU, PEEK, EPDM), the device is particularly suitable for corrosive media and demanding environments. Installation is straightforward and possible in both horizontal and vertical pipes. The non-contact ultrasonic measurement guarantees: Maximum service life Low operating costs Reliable measurement results regardless of conductivity Areas of application – versatile use in water, process and industrial engineering The JUMO flowTRANS US W01 DN 15 is suitable for numerous industrial and municipal applications: Typical areas of application: Waste water (electroplating, surface treatment) General process monitoring Cooling towers Seawater desalination Reverse osmosis Washing water recovery Ultrapure water, drinking water, process water, and industrial water Thanks to its corrosion-resistant design and wear-free measuring method, the device is ideal for environments in which metallic sensors reach their limits. Advantages for your application: Precise measurement of volume flow Current output 4–20 mA and digital pulse output 0–10 kHz Ideal for integration into process control systems Durable and easy to clean Robust industrial quality for continuous operation Measuring principle: Ultrasonic transit time difference for maximum precision Ultrasonic flow meters measure the velocity of a flowing medium using acoustic waves. To do this, the time is measured against and with the direction of flow. The difference between the two times is proportional to the velocity of the flowing medium. Thanks to completely wear- and maintenance-free ultrasonic technology, the flow meters measure with high precision and independently of conductivity. The metal-free housing and plastic pipe in various nominal sizes allow the measuring devices to be used flexibly – even with corrosive media. Available in DN 15 to DN 32, the inline device can be easily integrated into existing pipelines using the appropriate mounting accessories. Buy online now – JUMO flowTRANS US W01 DN 15 With the JUMO flowTRANS US W01, you are choosing an ultra-fast, extremely powerful, and universally applicable flow meter that impresses with its precision, flexibility, and durability. Ideal for companies that value reliable measurements, low maintenance costs, and high material resistance. Order now and benefit from state-of-the-art ultrasonic technology! Frequently Asked Questions What can I use the JUMO flowTRANS US W01 DN 15 for? It precisely measures the flow of water, process water, or ultrapure water—making it ideal for industrial and laboratory settings. Does the device work with both conductive and non-conductive liquids? Yes, the ultrasonic technology reliably measures all media, even non-conductive ultrapure water. Does the measuring device require much maintenance? No; thanks to non-contact ultrasonic measurement and the absence of moving parts, it is virtually maintenance-free. Can I use it in corrosive or chemically demanding environments? Yes, the metal-free, corrosion-resistant housing protects the device even when handling aggressive media. Is the device easy to install? Yes, it can be installed in either horizontal or vertical pipelines made of plastic or metal. What signal outputs are available? The device offers flexible outputs: 4–20 mA analog and 0–10 kHz pulse signals for system integration. Is the device suitable for industrial process control? Yes, it integrates seamlessly into existing process control systems. Can I use the device to monitor for leaks or efficiency? Yes, it reliably detects changes in flow and immediately indicates fluctuations. Are there suitable mounting accessories available? Yes, JUMO offers separate mounting kits that make installation even easier and more secure. Which applications is this model particularly suited for? Typical applications include cooling towers, reverse osmosis, wash water recovery, electroplating, process water systems, and ultrapure water.

Ultrasonic flow meter for DN 20 for stable and low-maintenance measurement of liquid flows in pipelines JUMO flowTRANS US W01 Ultrasonic Flow Meter DN 20 (3/4") In pipelines with medium nominal diameters, this flow meter enables reliable measurement of liquid flows under changing operating conditions. The ultrasonic technology operates without contact and delivers stable measurement values without being influenced by parameters such as pressure, temperature, or conductivity. The volumetric flow rate is determined by evaluating signal transit times measured along and against the direction of flow. The difference between these transit times is used to calculate the flow velocity and convert it into a flow value. This makes the system suitable for both steady and dynamic flow conditions. By eliminating mechanical components, the measuring point remains wear-free and requires minimal maintenance. For optimal results, the medium should have a homogeneous composition with only minimal gas or solid content. Advantages Reliable measurement under changing flow conditions Independent of conductivity and other media properties Suitable for continuous monitoring in piping systems Low maintenance requirements during operation Technical Data Measuring principle: Ultrasonic transit-time difference method Nominal diameter: DN 20 (3/4") Measurement setup: Ultrasonic sensors with external evaluation unit Measured variable: Volumetric flow rate Installation condition: Homogeneous liquids with low gas and solid content Typical Applications Water distribution and supply systems Technical systems in industrial environments Process pipelines with varying flow rates Building services and utility installations Frequently Asked Questions Does the device work even with low flow rates? Yes, it detects even very low flow rates and provides stable readings. How long does it take to install it in an existing system? Usually just a few minutes — no lengthy preparations are required. Does the device affect the flow? No, the ultrasonic measurement takes place without any obstruction in the pipe. Do I need to adjust anything afterwards? In many cases, no readjustment is necessary — it works straight away. Does it also work with water of different hardness levels? Yes, whether hard or soft water — the measurement remains stable. Do I need a special mounting kit for installation? Yes, JUMO offers suitable mounting kits separately to make installation even easier and safer.

Ultrasonic flow meter for DN 25 for precise and low-maintenance measurement of liquid flows in compact piping systems JUMO flowTRANS US W01 Ultrasonic Flow Meter DN 25 (1") For reliable flow monitoring in smaller pipe dimensions, this ultrasonic flow meter provides a precise solution without mechanical wear parts. The measurement is independent of typical influencing factors such as pressure, temperature, or conductivity, making it suitable for a wide range of liquids in technical systems. The device operates using the transit-time difference method, where ultrasonic signals are transmitted through the medium between two sensors. The difference in transit times in both flow directions is used to determine the flow velocity and calculate the volumetric flow rate. This method ensures stable measurement performance even under varying flow conditions. Advantages Optimized for smaller pipe diameters and compact systems No moving components, resulting in low maintenance requirements Can be used independently of physical media properties Consistently precise measurement with variable flow rates Technical Data Measuring principle: Ultrasonic transit-time difference method Nominal diameter: DN 25 (1") Measurement setup: 2 ultrasonic sensors with separate transmitter Measured variable: Volumetric flow rate Installation condition: Suitable for homogeneous liquids with low gas and solid content Typical Applications Compact water supply and utility systems Machine and plant engineering Building services with smaller piping systems Process monitoring of liquids Frequently Asked Questions Why do I need this flow meter in the first place? It reliably shows you how much liquid is flowing through your pipe. Does it work with different types of liquid? Yes, it measures both conductive and non-conductive liquids without any problems. Do I need to worry about wear and tear or maintenance? No, it operates without moving parts and is therefore low-maintenance. Is installation complicated or time-consuming? No, the device can be easily integrated into existing pipework. How accurate are the measurement results in everyday use? The measurement is very accurate, with a deviation of around ±2%. Can I also use the device in more demanding environments? Yes, it is robustly built and also suitable for industrial applications. Is the device versatile or only suitable for specific applications? It can be used in many areas, regardless of pressure, temperature (maximum medium temperature up to 80 °C) or conductivity.

Ultrasonic flow meter from JUMO for low-maintenance and precise measurement of liquids in piping systems JUMO flowTRANS US W01 Ultrasonic Flow Meter DN 32 (1 1/4") This ultrasonic flow meter enables precise and continuous measurement of liquid flows in pipelines without being affected by typical influencing factors such as pressure, temperature, or conductivity. This makes the system particularly suitable for applications where stable measurement values are required even under changing operating conditions. The measurement is based on the proven transit-time difference principle. Ultrasonic pulses are transmitted through the medium between two sensors. The flow velocity is calculated from the difference in signal transit times in the direction of flow and against the direction of flow, and the flow rate is then determined from this value. This method allows reliable measurement under both constant and varying flow conditions. As the flow meter operates without moving parts, there is no mechanical wear. This significantly reduces maintenance requirements and the risk of failure compared to conventional flow meters. Accurate measurement requires a largely homogeneous medium with only low levels of solids or gas content. Advantages of the JUMO flowTRANS Ultrasonic Flow Meter Measurement independent of pressure, temperature, viscosity, and conductivity No moving parts, resulting in low maintenance requirements Proven transit-time difference method for stable measurement results Suitable for long-term and continuous monitoring Technical Data Measuring principle: ultrasonic transit-time difference method Nominal size: DN 32 (1 1/4") Measurement setup: 2 ultrasonic sensors + transmitter Measured variable: volumetric flow rate (based on flow velocity) Signal processing: transit-time measurement in and against the flow direction Typical Applications Flow measurement in water supply and utility systems Industrial process monitoring of liquids Building services and technical installations Consumption and quantity measurement in pipelines Frequently Asked Questions What do I need this ultrasonic flow meter for? It reliably measures how much liquid flows through a pipe per unit of time. Does it work without any moving parts? Yes, ultrasonic technology measures without any components prone to wear and tear. Can I measure different liquids? Yes – it works with both conductive and non-conductive liquids. Is installation complicated? No, it can be easily installed directly into existing pipework. How accurate are the readings? The measurement accuracy is approximately ±2% of the measured value.

Ultrasonic flow meters Ultrasonic flow meters work largely independently of the specific properties of the product to be measured, such as pressure, temperature, viscosity or conductivity. Due to these advantages, they can be used in a wide range of applications. A further advantage of these systems is that they have no mechanical parts and are therefore less susceptible to maintenance than other flow meters. Principle of ultrasonic measurement: The basis of ultrasonic-based flow measurement is a system consisting of two sensors that communicate directly with each other. In accordance with DIN standard 1319, the flow measuring device consists of two parts: the actual measuring sensor in the form of the ultrasonic sensor and the measuring transducer or transmitter as the evaluation unit. For the measurement, an ultrasonic pulse (sound waves) is sent between the two sensors through the medium to be measured in a pipe. The transit times in the direction of flow and against the direction of flow are measured continuously. It measures the difference in the transit time of these pulses in the direction of flow and against the direction of flow. Without water flow, the signal propagation times in the flow direction and vice versa are identical. If water flows through the measuring section, the propagation speed of the sound waves is accelerated in the direction of flow and delayed in the opposite direction. The transit time difference between the two ultrasonic waves of a data pair is directly proportional to the average flow velocity. To determine the flow volume in relation to a defined period of time (second, minute, hour), the average flow velocity is multiplied by the respective pipe cross-section of the sensor used. The so-called transit time difference method is a proven and widely used measurement method in industrial environments for recording flow volumes. As a result, the meter displays the exact water consumption, regardless of whether the flow rate is high, low, constant or variable. When using ultrasonic flow meters, which work on the basis of the transit time difference method, it is important to ensure that the medium to be measured is as homogeneous as possible and only contains a very small amount of solids or gas. Special feature JUMO flowTRANS US W02 ultrasonic flowmeter The flowmeters utilise wear-free and maintenance-free ultrasonic technology, which enables high-precision measurements regardless of conductivity. Thanks to the metal-free housing and plastic pipes with different nominal diameters, they can be used flexibly, even in corrosive media. Temperature and pressure sensors can also be integrated. JUMO flowTRANS US W02 can be integrated into sensor networks via the JUMO digiLine or IO-Link interface. Convenient configuration is possible via Bluetooth and an app. Frequently Asked Questions What is this DN 15 measuring device suitable for? It precisely measures the flow of liquids in ½-inch pipelines, such as in water or process systems. Can I use the device for different liquids? Yes, the measurement works independently of properties such as pressure, temperature, or conductivity. How complex is the setup? Configuration is easily performed via Bluetooth and an app. Does the device require regular maintenance? No; the ultrasonic technology operates without moving parts, making it low-maintenance. How reliable are the measurement results? The device measures flow precisely and delivers reliable readings, even with fluctuating flow rates. Can I integrate the measuring device into existing systems? Yes, the device can be easily networked via IO-Link or JUMO digiLine. Is the device suitable for corrosive media? Yes, the metal-free housing allows for use in corrosive environments as well. Can I connect additional sensors later? Yes, temperature and pressure sensors can also be integrated.

Ultrasonic flow meters Ultrasonic flow meters work largely independently of the specific properties of the product to be measured, such as pressure, temperature, viscosity or conductivity. Due to these advantages, they can be used in a wide range of applications. A further advantage of these systems is that they have no mechanical parts and are therefore less susceptible to maintenance than other flow meters. Principle of ultrasonic measurement: The basis of ultrasonic-based flow measurement is a system consisting of two sensors that communicate directly with each other. In accordance with DIN standard 1319, the flow measuring device consists of two parts: the actual measuring sensor in the form of the ultrasonic sensor and the measuring transducer or transmitter as the evaluation unit. For the measurement, an ultrasonic pulse (sound waves) is sent between the two sensors through the medium to be measured in a pipe. The transit times in the direction of flow and against the direction of flow are measured continuously. It measures the difference in the transit time of these pulses in the direction of flow and against the direction of flow. Without water flow, the signal propagation times in the flow direction and vice versa are identical. If water flows through the measuring section, the propagation speed of the sound waves is accelerated in the direction of flow and delayed in the opposite direction. The transit time difference between the two ultrasonic waves of a data pair is directly proportional to the average flow velocity. To determine the flow volume in relation to a defined period of time (second, minute, hour), the average flow velocity is multiplied by the respective pipe cross-section of the sensor used. The so-called transit time difference method is a proven and widely used measurement method in industrial environments for recording flow volumes. As a result, the meter displays the exact water consumption, regardless of whether the flow rate is high, low, constant or variable. When using ultrasonic flow meters, which work on the basis of the transit time difference method, it is important to ensure that the medium to be measured is as homogeneous as possible and only contains a very small amount of solids or gas. Special feature JUMO flowTRANS US W02 ultrasonic flowmeter The flowmeters utilise wear-free and maintenance-free ultrasonic technology, which enables high-precision measurements regardless of conductivity. Thanks to the metal-free housing and plastic pipes with different nominal diameters, they can be used flexibly, even in corrosive media. Temperature and pressure sensors can also be integrated. JUMO flowTRANS US W02 can be integrated into sensor networks via the JUMO digiLine or IO-Link interface. Convenient configuration is possible via Bluetooth and an app. Frequently Asked Questions Can I use the device for different fluids? Yes, the measurement works independently of properties such as pressure, temperature, or conductivity. Will I need to perform regular maintenance? No, the device operates without moving parts, making it exceptionally low-maintenance. How accurate is the flow meter? Ultrasonic technology enables precise and reliable flow measurement. Is setup complex? No, configuration is easily handled via Bluetooth and an app. Can I integrate the device into my existing system? Yes, the device can be easily networked via IO-Link or JUMO digiLine. Is the device suitable for corrosive environments? Yes, the metal-free housing and plastic piping are designed for such applications. Can I capture additional measured values later? Yes, additional sensors for temperature or pressure can be integrated.

Ultrasonic flow meter DN 25 with IO-Link, digiLine and Bluetooth for flexible integration into compact, networked systems JUMO flowTRANS US W02 Ultrasonic Flow Meter DN 25 (1") This flow meter from JUMO combines precise ultrasonic measurement with modern interface technology for integration into compact process and utility systems. It reliably measures liquid flows and operates largely independently of influencing factors such as conductivity, pressure, or temperature. This makes the device suitable for a wide range of media in industrial and technical applications. The flow rate is determined by evaluating ultrasonic signals transmitted through the medium in both flow directions. In addition, the system offers digital communication options for direct integration into higher-level control systems. Via IO-Link or JUMO digiLine, the sensor can be integrated into existing networks and monitored centrally. Parameterization is conveniently performed via Bluetooth and app, simplifying commissioning and adjustments during operation. The metal-free housing also enables use in corrosive environments. Advantages Fast commissioning and adjustment via Bluetooth Precise measurement independent of the medium's conductivity Maintenance-free operation without mechanical wear parts Flexibly expandable through the connection of additional sensors Technical Data Measuring principle: Ultrasonic transit-time difference method Nominal diameter: DN 25 (1") Interfaces: IO-Link, JUMO digiLine Configuration: Bluetooth / App Measured variable: Volumetric flow rate Housing: Metal-free, corrosion-resistant Typical Applications Compact, digitally networked process systems Water supply and utility systems Industrial applications with centralized control Corrosive or demanding media environments Frequently Asked Questions What is this flow meter suitable for? It measures liquid flow in DN 25 pipelines with high precision—making it ideal for many water and process applications. What makes the ultrasonic technology special? It operates without contact and has no moving parts, resulting in low maintenance requirements and a long service life. Does the liquid's conductivity matter? No—the device measures independently of conductivity, pressure, or temperature. How does the measurement work inside the pipe? Ultrasonic pulses are transmitted both with and against the direction of flow; the difference in transit time determines the flow rate. How do I configure the device on-site? Setup is conveniently handled via Bluetooth and an app. How do I retrieve measurement data? The system offers digital communication options for direct integration into higher-level control systems. The sensor can be integrated into existing networks and monitored centrally via IO-Link or JUMO digiLine. Can the device be used in corrosive environments? Yes—its metal-free housing and plastic pipe make it suitable for demanding media.

Ultrasonic flow meter DN 32 with IO-Link, digiLine and Bluetooth for easy integration into networked process systems JUMO flowTRANS US W02 Ultrasonic Flow Meter DN 32 (1 1/4") This flow meter from JUMO is designed for integration into modern, digitally networked systems. It measures liquid flows precisely and independently of physical media properties such as conductivity, pressure, or temperature. This makes the system suitable for a wide range of water and process applications, even under demanding operating conditions. The measurement is based on an ultrasonic transit-time method in which signals are transmitted through and evaluated within the medium. In addition, the integrated interface technology enables direct communication with higher-level systems. Via IO-Link or JUMO digiLine, the device can be integrated into existing sensor networks and managed centrally. Additional flexibility is provided through wireless configuration via Bluetooth and app, significantly simplifying parameterization and commissioning. The metal-free housing also supports use in corrosive environments. Advantages Easy configuration Independent of conductivity and other media properties Wear-free measurement without moving components Expandable through the integration of additional sensors (e.g. temperature, pressure) Technical Data Measuring principle: Ultrasonic transit-time difference method Nominal diameter: DN 32 (1 1/4") Interfaces: IO-Link, JUMO digiLine Configuration: Bluetooth / App Measured variable: Volumetric flow rate Housing: Metal-free, corrosion-resistant Typical Applications Digitally networked industrial systems Process monitoring with centralized control Water and wastewater systems Applications with increased corrosion resistance requirements Frequently Asked Questions Can the device be used with varying water qualities? Yes, the measurement works independently of properties such as conductivity, temperature, or pressure. Is setup complicated? No, configuration is easily handled via Bluetooth and an app—no complex settings required. Should I expect wear and tear or frequent maintenance? No, the device operates without moving parts, making it exceptionally low-maintenance. Can I integrate the measuring device into my existing system? Yes, the device can be easily networked via IO-Link or JUMO digiLine. Is the device suitable for humid or corrosive environments? Yes, the metal-free housing is corrosion-resistant and suitable for demanding operating environments. What is the JUMO flowTRANS US W02 ultrasonic flow meter (DN 32 / 1 1/4 in.) suitable for? The device measures the volumetric flow rate of liquids precisely and reliably. Can I integrate additional measurements into my system later? Yes, the system can be expanded to include additional sensors, such as those for temperature or pressure. How easy is on-site operation? Thanks to the TFT display, readings are clearly visible and settings can be adjusted directly. How accurately does the device measure flow? Measurement is highly precise—typically around ±1% of the current measured value.

JUMO hydro TRANS S20 - Humidity and temperature transmitter with optional wall-mounted CO2 module Basic type extension: RH-T Version: Standard Measuring range: 0 ... 100 % rH / -40 ... +80°C Output: 4 ... 20 mA / 0 ... 10 V combi output config. Extra code: without  Measuring parameters: Temperature, relative humidity, carbon dioxide (CO2) optional Interfaces: USB, RS485, Sigle Pair Ethernet (SPE) Robustness Easy to install Multi-sensor Optional plastic sintered filter The humidity and temperature transducer monitors the quality of the ambient air and can be wall-mounted both indoors and in protected outdoor areas. Areas of application Climate monitoring Ventilation systems Building management Storage rooms

JUMO hydro TRANS S30 - Humidity and temperature transmitter with optional CO2 module in duct version Basic type extension: RH-T Version: StandardMeasuring range: 0 to 100 % RH/-40 to +80 °COutput: 4 to 20 mA/0 to 10 V combined output configuredExtra code: Without Measuring parametersTemperatureRelative humidityCarbon dioxide (CO2) optional InterfacesUSB PORTRS485 Areas of applicationClimate monitoringVentilation systemsBuilding managementStorage roomsRailroad applications according to DIN EN 50155 Special featuresRobustnessEasy to installMultisensorOptional plastic sintered filter The humidity and temperature transducer monitors the outside air flowing into buildings and production processes. It is suitable for installation in weather-protected ventilation ducts.

Push-in resistance thermometer in water vapour-tight design Measuring range -50 to +150°C Connection cable: PTFE 1x Pt 100 in four-wire circuit  Single resistance thermometer Tolerance class A according to DIN EN 60 751 Thermowell diameter: 6 mm Insertion length: 100 mm Connection cable end: Wire end ferrules to DIN 46 228 Connection cable length: 2500 mm (standard) Extra codes: Shielded connecting cableThe plug-in resistance thermometer in water vapour-tight design is preferably used for temperature measurements in sterilisers. Their specific design allows them to be used in atmospheres containing water vapour and under pressure. Another area of application is in apparatus engineering and laboratory technology. The thermometer can be supplied with a PTFE connection cable, which enables operation in humid rooms in the temperature range from -50 to +150 °C, or alternatively an FEP connection cable is available, which covers temperatures from -70 to +200 °C.The transition of the connection cable is strain-relieved to ensure the longevity of the connection. The measuring insert is equipped as standard with a Pt 100 temperature insert in accordance with DIN EN 60 751, class A in a two-wire circuit. In addition, the connection can optionally be made in three- and four-wire circuits to meet individual requirements.

Push-in resistance thermometer in water vapour-tight design, pressure-tight up to 5.0 bar  Measuring range -70 to +200°C Connection cable: FEP 1 x Pt 100 in four-wire circuit  Single resistance thermometer Tolerance class A according to DIN EN 60 751 Thermowell diameter: 4 mm Insertion length: 50 mm Connection cable end: Wire end ferrules to DIN 46 228 Connection cable length: 2500 mm (standard) Extra codes: without extra codeThe insertion resistance thermometer in water vapour-tight design is preferably used for temperature measurements in sterilisers. Their specific design allows them to be used in atmospheres containing water vapour and under pressure. Another area of application is in apparatus engineering and laboratory technology. The thermometer can be supplied with a PTFE connection cable, which enables operation in humid rooms in the temperature range from -50 to +150 °C, or alternatively an FEP connection cable is available, which covers temperatures from -70 to +200 °C.The transition of the connection cable is strain-relieved to ensure the longevity of the connection. The measuring insert is equipped as standard with a Pt 100 temperature insert in accordance with DIN EN 60 751, class A in a two-wire circuit. In addition, the connection can optionally be made in three- and four-wire circuits to meet individual requirements.

Type: 902150/40-397-1003-1-6-60-11-2500/317  Temperature measuring range: -50 ... +350 °C / Metal mesh  Measuring insert: 1x Pt 100 in two-wire circuit  Installation length: 60 mm  Cable length: 2500 mm  Tolerance class: Class B (standard)  Thermowell diameter: 6 mm  Wire end ferrules  Extra code: Shielded connecting cable  Available as single and dual resistance thermometers  Available in straight and angled versions to meet different installation requirements.  Flexible connection cables  Strain relief to protect against mechanical stress  Meets SIL and PL qualification standards for maximum safety  Optional kink protection Areas of application:  Laboratory technology  Climate cabinets  Solar systems  Heating, air conditioning, ventilation  Apparatus engineering The insertion resistance thermometer offers precise temperature measurement in both liquid and gaseous media. The wide range of variants makes it ideal for various applications in industrial environments.This thermometer ensures reliable performance in dry and damp rooms and enables accurate temperature measurements. The robust design and flexible configuration options ensure precise temperature monitoring. JUMO order code: A JUMO order code uniquely identifies a specific measuring instrument or component based on its configuration. You will find the exact JUMO order code for your instrument configuration in the relevant data sheet from page 5 onwards. This can be found under ‘Downloads’ for the product. Frequently Asked Questions What temperature range is this thermometer suitable for? It is suitable for temperature measurements from -50°C to +350°C. When is the 90° angled connecting cable useful? It is particularly helpful in tight installation spaces or where the cable needs to exit from the side. Can I use the thermometer in liquids and gases? Yes, it is suitable for both media and provides reliable measurements. How long is the connecting cable? The connecting cable is 2.5 meters long and offers flexible use. Is the thermometer suitable for industrial environments? Yes, it features a robust design and is built for industrial applications. How is the connecting cable protected against damage? Strain relief and optional kink protection provide added safety. Where is this thermometer typically used? Typical applications include laboratories, climate chambers, solar energy systems, equipment manufacturing, and heating and ventilation systems.

Push-in resistance thermometer with spiralised connection cable, one-piece stainless steel protection tube Temperature measuring range: -50 ... +260 °C / metal braiding Measuring insert: 1x Pt 100 in two-wire circuit Installation length: 100 mm Cable length: 2500 mm Tolerance class: Class B (standard) Thermowell diameter: 6 mm Wire end ferrules Extra code: with bend protection, cable shielded Available as single and double resistance thermometers Available in straight and angled versions to meet different installation requirements. Flexible connection cables Strain relief to protect against mechanical stress Meets SIL and PL qualification standards for maximum safety Optional kink protection Areas of application: Areas of application: Laboratory technology Climate cabinets Solar systems Heating, air conditioning, ventilation Apparatus engineering The insertion resistance thermometer offers precise temperature measurement in both liquid and gaseous media. The wide range of variants makes it ideal for various applications in industrial environments. This thermometer ensures reliable performance in dry and damp rooms and enables accurate temperature measurements. The robust design and flexible configuration options ensure precise temperature monitoring.

Push-in resistance thermometer with spiralised connection cable, one-piece stainless steel protection tube Type: 902150/20-730-1003-1-6-50-11-1100/000 Temperature measuring range: -5 ... +105 °C Measuring insert: 1x Pt 100 in two-wire circuit Installation length: 50 mm Cable length: 1100 mm (stretched) Tolerance class: Class B (standard) Thermowell diameter: 6 mm Wire end ferrules Extra code: without Available as single and dual resistance thermometers Available in straight and angled versions to meet different mounting requirements. Flexible connection cables Strain relief to protect against mechanical stress Meets SIL and PL qualification standards for maximum safety Optional kink protection Areas of application: Laboratory technology Climate cabinets Solar systems Heating, air conditioning, ventilation Apparatus engineering The insertion resistance thermometer offers precise temperature measurement in both liquid and gaseous media. The wide range of variants makes it ideal for various applications in industrial environments. This thermometer ensures reliable performance in dry and damp rooms and enables accurate temperature measurements. The robust design and flexible configuration options ensure precise temperature monitoring.  JUMO order code: A JUMO order code uniquely identifies a specific measuring instrument or component based on its configuration. You will find the exact JUMO order code for your instrument configuration in the relevant data sheet from page 5 onwards. This can be found under ‘Downloads’ for the product. Frequently Asked Questions What temperature range is this thermometer suitable for? It is suitable for temperature measurements from -5°C to +105°C. Can I use the thermometer in liquids and gases? Yes, it was designed for precise temperature measurements in liquid and gaseous media. What are the advantages of the coiled connecting cable? It is flexible and can extend as needed, which can make installation easier. Is the thermometer suitable for humid environments? Yes, it can be used in both dry and humid areas. Where is this thermometer typically used? It is frequently used in climate chambers, solar thermal systems, heating and ventilation systems, and equipment manufacturing. Are there different versions for different installation situations? Yes, the thermometer is available in straight and angled versions to meet various mounting requirements. How is the connecting cable protected against strain? An integrated strain relief protects the cable from mechanical stress during everyday use.

JUMO low flowTRANS US W 01 DN 15 – buy online JUMO low flowTRANS US W01 Ultrasonic flow meter DN 15 (1/2 in.) – Low flow calibration – precise measurement of small volume flows The JUMO low flowTRANS US W01 is a high-precision ultrasonic flowmeter that has been specially developed for very low flow rates. In the low-flow version, the device impresses with its extremely fine measurement resolution in the lower flow range and is ideal for sensitive process steps where maximum accuracy is crucial. Special features of the low flow trans measuring device Precise flow measurement for the smallest volume flows Low flow calibration expands the standard device with a particularly sensitive measuring range. This allows even the smallest volume flows to be measured reliably and reproducibly. An optional JUMO mounting set also enables a flow-optimised transition from DN 15 to DN 10, which improves the flow behaviour and further increases the measuring accuracy in the lower flow range. This combination makes the JUMO low flowTRANS US W01 the perfect solution for: Dosing processes Laboratory and ultrapure water applications Precise process monitoring at low flow rates Powerful ultrasonic technology – low maintenance & reliable The measuring device operates according to the ultrasonic transit time difference principle. This involves measuring the transit time of the ultrasonic signals with and against the direction of flow. The time difference is directly proportional to the flow velocity and enables precise volume flow measurement. Unlike magnetic-inductive flow meters, the ultrasonic flow meter measures both conductive and non-conductive media, e.g. ultrapure water. As there are no moving parts, the device is wear-free, low-maintenance and permanently accurate. Suitable for conductive and non-conductive media Thanks to its metal-free design and high-performance plastic tube, the JUMO low flowTRANS US W01 is also ideal for corrosive media and demanding environments. Robust materials: PPSU PEEK EPDM It is installed inline in plastic or metal pipes and can be mounted both horizontally and vertically – without the need for a complex T-piece. Flexible signal outputs & easy integration The measured volume flow can be output as: Analogue current signal: 4–20 mA Digital pulse signal: 0–10 kHz The device can be easily integrated into existing pipelines with the appropriate mounting accessories. Typical areas of application The JUMO low flowTRANS US W01 is ideal for numerous industrial and process engineering applications, including: Water and environmental technology (drinking water, process water, service water, slightly contaminated waste water) Dosing of chemicals Cooling water circuits, cooling towers Reverse osmosis Seawater desalination Washing water recovery Waste water (electroplating, surface treatment) Your advantages at a glance Highest accuracy at very low flow rates JUMO mounting kit also enables a flow-optimised transition from DN 15 to DN 10 Ultra-fast and extremely powerful Measurement of conductive and non-conductive media Wear-free and low-maintenance – no moving parts Corrosion-resistant thanks to metal-free construction Easy installation Easy to clean High process reliability even in sensitive applications Buy the JUMO low flowTRANS US W01 online now and benefit from maximum measurement reliability! Maximum precision for low-flow applications The JUMO low flowTRANS US W01 ultrasonic flowmeter DN 15 is the ideal solution for anyone who wants to measure low flow rates with high precision, monitor processes reliably, and reduce long-term maintenance costs. Buy the JUMO flowTRANS US W01 Low Flow online now and benefit from state-of-the-art ultrasonic measurement technology. Frequently asked questions What makes a JUMO flowTRANS US W01 a JUMO low flowTRANS US W01? The difference lies not in the basic device itself, but in the calibration and design for very small flow rates. 1. Special low flow calibration The device has a low flow calibration that enables very small volume flows to be measured more precisely. 2. Flow-optimised reduction from DN 15 to DN 10 In addition, a special mounting kit enables flow-optimised reduction from DN 15 to DN 10, which allows lower flow velocities to be measured more accurately. Frequently Asked Questions What makes the Low-Flow model special? It measures even very low volumetric flow rates with extreme precision—ideal for sensitive processes. What applications is this device suitable for? Perfect for dosing processes, laboratory applications, ultrapure water, reverse osmosis, and cooling circuits. Can the device measure both conductive and non-conductive liquids? Yes, it reliably measures ultrapure water and process fluids across the entire conductivity range. How does the ultrasonic measurement work? It measures the transit time of ultrasonic signals traveling with and against the flow; the difference determines the volumetric flow rate. Does the device require extensive maintenance? No; thanks to wear-free ultrasonic technology with no moving parts, it is low-maintenance. How is it installed? It is installed inline in plastic or metal piping—either horizontally or vertically—without the need for a complex T-piece. Are there special accessories for low flow rates? Yes, an optional DN 15 → DN 10 mounting kit optimizes flow characteristics and enhances measurement accuracy. What signal outputs are available? Analog 4–20 mA signals and digital 0–10 kHz pulses for easy system integration. Is the device resistant to aggressive media? Yes; the metal-free housing and wetted parts made of PPSU, PEEK, and EPDM ensure corrosion resistance. Who benefits most from this model? Anyone needing to precisely measure very low flow rates—for example, in laboratories, dosing systems, or sensitive process steps. Is the device easy to clean? Yes; its robust, metal-free design makes cleaning and handling particularly easy.

Ultrasonic flow meters Ultrasonic flow meters work largely independently of the specific properties of the product to be measured, such as pressure, temperature, viscosity or conductivity. Due to these advantages, they can be used in a wide range of applications. A further advantage of these systems is that they have no mechanical parts and are therefore less susceptible to maintenance than other flow meters. Principle of ultrasonic measurement: The basis of ultrasonic-based flow measurement is a system consisting of two sensors that communicate directly with each other. In accordance with DIN standard 1319, the flow measuring device consists of two parts: the actual measuring sensor in the form of the ultrasonic sensor and the measuring transducer or transmitter as the evaluation unit. For the measurement, an ultrasonic pulse (sound waves) is sent between the two sensors through the medium to be measured in a pipe. The transit times in the direction of flow and against the direction of flow are measured continuously. It measures the difference in the transit time of these pulses in the direction of flow and against the direction of flow. Without water flow, the signal propagation times in the flow direction and vice versa are identical. If water flows through the measuring section, the propagation speed of the sound waves is accelerated in the direction of flow and delayed in the opposite direction. The transit time difference between the two ultrasonic waves of a data pair is directly proportional to the average flow velocity. To determine the flow volume in relation to a defined period of time (second, minute, hour), the average flow velocity is multiplied by the respective pipe cross-section of the sensor used. The so-called transit time difference method is a proven and widely used measurement method in industrial environments for recording flow volumes. As a result, the meter displays the exact water consumption, regardless of whether the flow rate is high, low, constant or variable. When using ultrasonic flow meters, which work on the basis of the transit time difference method, it is important to ensure that the medium to be measured is as homogeneous as possible and only contains a very small amount of solids or gas. Special feature JUMO flowTRANS US W02 ultrasonic flowmeter The flowmeters utilise wear-free and maintenance-free ultrasonic technology, which enables high-precision measurements regardless of conductivity. Thanks to the metal-free housing and plastic pipes with different nominal diameters, they can be used flexibly, even in corrosive media. Temperature and pressure sensors can also be integrated. JUMO flowTRANS US W02 can be integrated into sensor networks via the JUMO digiLine or IO-Link interface. Convenient configuration is possible via Bluetooth and an app. Frequently Asked Questions Can I use the device with very small pipelines? Yes, it is specifically designed for DN 15 pipes (½ inch). Does the measurement work with different types of liquids? Yes, the measurement is independent of pressure, temperature, or conductivity. How complex is the configuration process? Setup is simple via Bluetooth and an app. Does the device require regular maintenance? No, it operates without moving parts, making it very low-maintenance. How does this device measure flow? It uses ultrasonic pulses traveling against and with the flow to calculate the volumetric flow rate. How accurate are the measurement results? Ultrasonic technology ensures precise and reliable flow readings. Can I integrate the device into my existing system? Yes, it can be easily networked via IO-Link or JUMO digiLine. Is the device suitable for challenging environments? Yes, the metal-free housing is suitable even for corrosive media. Does the liquid need to have specific properties, such as conductivity? No. Measurement works independently of conductivity, pressure, or temperature. Why is this "low flow" model of interest? Because it accurately detects and displays even very low flow rates. Can the measuring device be combined with other sensors? Additional sensors for temperature or pressure can be integrated as an option.

JUMO meroVIEW - Multifunction digital indicator with PLC function  Version: Standard with factory settings  Power supply: AC 10 to 240 V +10/-15% / 48 to 63 Hz  Extra code: without  Option1-6: not assigned  1 analogue input  1 digital input  1 digital input/output switchable  1 relay (NO contact)  2 timers  Min/max display  Hold function  Tare function The display series comprises four universally applicable devices in various DIN formats, which are used to display temperature, pressure and other process variables.The devices offer user-friendly operation with a clearly structured layout and text support. Process values and parameters are displayed on two 18-segment LCD displays. Types 701552, 701553 and 701554 also have a pixel matrix LCD display for displaying texts. Additional display elements provide information about the switching positions of the outputs and certain functions such as timers. The devices are operated via a membrane keypad with 4 buttons and can also be used in demanding environments thanks to their high IP65 protection rating.The basic equipment already includes a min/max value display, hold function, temperature function, limit value monitoring, digital control signals, extensive timer functions and a service counter. Optionally, the devices can be extended with a maths and logic function as well as with ST code functionality to realise customer-specific functions. The ST code functionality also allows direct access to the display and operating buttons, which enables customised device operation. Inputs and outputsEach device type is equipped with a universal analogue input that is suitable for resistance thermometers, thermocouples, current, voltage, resistance transmitters and resistance/potentiometers. Each device also has a digital input, a switchable digital input/output and two relay outputs (NO contact 3 A). The digital inputs are intended for the connection of a potential-free contact, while the digital output supplies a logic signal of 0/14 V.The optional digital outputs with 0/14 V (not galvanically isolated) can be used, for example, to control solid-state relays. Alternatively, the optional digital outputs with 0/22 V and galvanic isolation can also be used as a voltage supply for two-wire transmitters.Please note that certain inputs and outputs cannot be used simultaneously (see notes in the wiring diagram). Customer-specific linearisationIndividual linearisation according to customer requirements also makes it possible to use sensor signals with special characteristics. Programming is carried out in the setup program either using your value table with up to 40 value pairs or using a formula (4th order polynomial). The device supports 2 customer-specific linearisations. Counting inputsThe device can optionally be equipped with up to 4 counting inputs, with a maximum counting frequency of 12.5 kHz. Each counting input can be controlled either with a digital signal of 0/24 V or via a potential-free contact. The counters allow the following functions to be configured:  Counting of pulses  Calculation of frequency  speed  Speed (volume per time unit)  Flow rate (volume per time unit) In addition, individual functions can be implemented via maths functions or ST code, such as the calculation of the total flow rate (volume) Signal assignment via selectorsThe input signals and all internal signals are available in so-called selectors (analogue selector, digital selector) for further use in the device. The control signals for the outputs are also assigned via selectors, which enables flexible assignment of signals and functions. USB interfacesThe device has a USB device interface (Micro-B socket on the rear), which is intended exclusively for connection to a PC for use with the setup programme. There is also a USB host interface (type A socket), which is located on the rear of the 108 and 104 format devices and on the side of the smaller 116 format device. This interface is intended for connecting a USB memory stick in order to carry out firmware updates, read out data loggers and transfer the device configuration. RS485 interfaceThe RS485 interface is available as an option and supports the Modbus RTU protocol. It can be used in both master and slave mode. Ethernet interfaceThe Ethernet interface (Modbus TCP) is optional and enables parallel communication with 2x mater or 2x slave. It is used for integration into a company network, the transfer of process values and communication with the setup programme. PROFINET interfaceThe device can optionally be equipped with a PROFINET interface in order to be integrated into a PROFINET network as an IO device. A GSD file (GSDML) is available for the programming system of the IO controller, which describes the properties of the device. It should be noted that the standard Ethernet services are not supported via the PROFINET interface. If the device is equipped with the PROFINET interface, neither the Ethernet nor the RS485 interface can be used. Power supplyThe device is available in two power supply variants: AC 110 to 240 V or AC/DC 24 V (see Technical data). Electrical connectionThe electrical connection is time-saving with removable spring-loaded terminals (PushIn technology). Min-max functionWhen the min-max function is activated, both the minimum and maximum values of the indicator are saved and continuously updated. These values can be displayed separately or alternating with the current value. In the alternating display (scrolling), the min/max symbol is active while either the minimum or maximum value is displayed. A binary signal can be used to reset the stored values in order to return to the current value. Hold functionThe hold function "freezes" the value of the indicator, which means that this value is displayed as long as the controlling binary signal is active. Tare functionThe tare function makes it possible to set the value of the indicator to zero, controlled by a binary signal (for weighing applications). The currently displayed value is added to the tare value each time. Another binary signal can be used to reset the tare value to zero so that the current value appears on the display again. Limit value monitoringThe device is equipped with 8 limit value monitors, each of which has 8 configurable alarm functions. Any analogue signal is selected from a selector for monitoring, while the limit value can either be an absolute value or dependent on another analogue signal. It offers special functions such as  On/off delay  Wiper function  Alarm suppression during the switch-on phase or in the event of parameter changes Alarm latching  Latching with acknowledgement Limit value monitoring enables a variety of alarm and limit value functions. Digital control signalsThis function enables the configuration of up to 8 digital control signals. The control signal is either formed by an AND/OR/XOR combination of up to three selectable binary signals or a single binary signal is used as an input signal and can be output as a pulsed signal, delayed signal, wiper signal or edge-triggered signal. In the latter case, the rising or falling edge of the binary signal is determined and the output signal is activated for the duration of a sampling interval. The output signal can be inverted in all these cases. TimerThe device is also equipped with 2 timers that can be started via freely selectable digital signals or depending on an integrated tolerance band monitoring function. Lead and lag times as well as a self-hold function with acknowledgement are also available. This makes it easy to realise a wide range of functions such as time-controlled regulation or setpoint switching. Service counterThe service counter can either count the number of switching operations of a binary signal or measure its switch-on duration. As soon as the adjustable limit value is reached, a binary signal is activated and must be acknowledged. An operating hours counter is also available, which records the operating time of the device. Maths and logic functionThe optional maths and logic function (extra code) can be used to link analogue or binary values. Up to four freely configurable maths or logic formulas can be created using the setup program. The results are then available for further use in the analogue or digital selector. Structured textThe "Structured text" option (extra code) allows the user to develop a customised application. This application is created using the ST editor, which is part of the setup programme, and uses the "Structured text" PLC programming language. Once completed, the application is transferred to the device and executed continuously. Online debugger functions are available in the ST editor for troubleshooting and testing.With the setup programme, the user can also create up to 100 individual texts and have them shown on the device display by a corresponding application. These texts can be entered in four languages so that they are displayed in the respective language after changing the device language. Data loggerThe data logger enables the recording of 4 analogue and 4 binary values. The recording interval is adjustable and ranges from 1 minute to 1 hour. Recording is based on the ring memory principle, which means that older data is overwritten as soon as the memory is full. With a recording interval of 10 minutes, the data can be recorded for around 2 years before the oldest data is overwritten. A USB memory stick on which the data is stored in CSV format is used to read out the data. Real-time clockThe real-time clock provides the current date and time (time stamp for data logger and ST code). Retain memoryThanks to the integrated retain memory, specific data is retained even in the event of a power failure. This applies to the service data, the counter and timer data as well as the retain data of the ST code. Individually configurable operating levelsThe user has the option of customising the device menu to ensure a high level of operating convenience and optimum integration into the system. Four menu levels with submenus are available for this purpose. The menu items and parameters can be labelled individually in four languages, and it is possible to switch between them. The menu levels can be partially or completely locked to prevent unauthorised operation. Setup programmeThe setup programme is essential for commissioning the device and is available to download free of charge. In addition to the individual set-up of the operating levels, whose parameters can subsequently be edited in the device, the setup programme offers the user a simple and user-friendly method of configuring the device using a PC. With the setup programme, data records can be created, edited, transferred to the device and read out from there. The data can be saved and printed out. The programme also allows the user to easily create and print out a connection diagram showing the current terminal assignment of the device. Startup: The startup function enables the recording of process variables during commissioning for a maximum of 24 hours. The recorded diagrams are available on the PC and can be used for system documentation, for example. Online data: The current process variables of the device are displayed in a separate window. Firmware update The device's firmware can be updated in a user-friendly way using a USB memory stick; the file is provided by the manufacturer if required.