pH

Version 2: stock version: type 202560/20-888-000-310-000-23/000 ; part-no. 00480050 The unit is used for measuring/controlling the pH-value, the redox-voltage or the NH3-(ammonia)-concentration. The function can be switched directly on the unit. Depending on the measurand, combination electrodes (e.g. pH/redox combination electrodes, gas-sensitive sensors) or separate versions (glass/metal electrodes with separate reference electrode) can be connected. The second input variable is the temperature measurement, which can be carried out with a Pt 100/1000, for example. Automatic temperature compensation is thus possible for the measured variables pH value and NH3. The units are operated via clear keys and a large LC graphic display. This display enables good readability of the measured value. The display of the parameters in plain text makes configuration easier for the operator and supports correct programming of the unit. The modular design of the unit allows it to be adapted to the requirements of the application. Up to four outputs are available. Special features   direct switching option for pH value, redox voltage or NH3 (ammonia) concentration Automatic temperature compensation Large LC graphic display with backlighting Display selectable: large digits, bar graph or tendency display Solderless connection technology - Calibration options depending on measurand one/two/three-point calibration calibration logbook Impedance measurement can be activated for pH measurement Asymmetrical and symmetrical connection of pH sensors Possibility of connecting pH ISFET sensors through integrated output for sensor power supply Protection class IP67 for surface mounting, protection class IP65 for control cabinet mounting User languages switchable German, English, French; further languages can be loaded via setup program Through setup program: convenient programming, system documentation, reloading of further user languages JUMO AQUIS 500 – Modular Measuring and Control Systems for Precise Water Analysis The JUMO AQUIS 500 series includes a range of powerful, modular measuring and control devices for monitoring analytical water parameters such as pH, redox, conductivity, temperature, and more. Each model (e.g., AQUIS 500 pH, CR) is tailored to a specific sensor type or measurement range, making the series ideal for use in water treatment, environmental technology, process engineering, and industrial process monitoring. At HeylNeomeris, the AQUIS 500 series provides reliable solutions for stationary applications that demand high measurement accuracy, flexible system integration, and user-friendly operation. Advantages of the JUMO AQUIS 500 Series: • The series offers tailored solutions for various measurement tasks – from pH to conductivity • Modular design and compatibility allow for easy integration into existing systems • Digital interfaces (e.g., 0/4–20 mA, relay outputs) enable seamless automation • The devices deliver stable and precise measurements, even during continuous operation • A clear display and intuitive menu navigation simplify installation and maintenance • With IP65 protection and a robust design, they are well suited for industrial environments Frequently Asked Questions What can I actually use the JUMO AQUIS 500 CR for? The transmitter measures conductivity, TDS, resistance and temperature in liquids, e.g. in water treatment, industrial plants or laboratory applications. Can I monitor several parameters simultaneously with the device? Yes, the AQUIS 500 CR can measure and display several parameters, such as conductivity and temperature, simultaneously. Is the device easy to install? Yes, the device is mounted in a surface-mounted housing and can be integrated into existing systems. Is the device suitable for industrial environments? Yes, the AQUIS 500 CR has been specially developed for use in industrial and process plants. Can I transmit the measured values to a control system? Yes, the analogue outputs allow measurement values to be easily transmitted to external control or monitoring systems. Does the device require frequent maintenance or calibration? Generally, occasional checks and calibration are sufficient, depending on the application and operating conditions. For which liquids is the device particularly well suited? Typical applications include water, process water or other conductive liquids in industry and engineering.

If you are looking for a pH electrode for high-temperature process conditions and value HT glass, high-temperature gel, a zirconium dioxide diaphragm, and a reliable standard version without additional options, this JUMO tecLine variant is a strong choice. JUMO tecLine pH electrode with glass shaft, high-temperature gel, 1x zirconium dioxide diaphragm, Pg13.5 screw head and 120 mm immersion length This JUMO tecLine pH electrode is designed for demanding pH measurements at elevated continuous temperatures. It is particularly suitable for processes where standard electrodes are exposed to higher thermal stress and therefore require a specially designed solution. With HT glass, high-temperature gel, and a zirconium dioxide diaphragm, this version is ideal for applications where temperature resistance and reliable measurement performance are essential. Technical data Basic type: glass shaft Active element: HT glass Measuring range: pH 0 to 14 Temperature range: 0 to +135 °C Diaphragm: 1 x zirconium dioxide Electrical connection: Pg13.5 screw head (S8) Reference system: high-temperature gel, sealed, cartridge reference system Immersion length: 120 mm Advantages and special features A key advantage of this electrode is its design for temperatures up to +135 °C. This makes it particularly suitable for applications where pH measurement must remain reliable not only under standard conditions but also in warm or continuously hot processes. The HT glass is designed for the full pH range from 0 to 14 and specifically developed for high-temperature applications. This makes the electrode a durable solution for thermally demanding environments. Why choose this electrode? This version is especially suitable for processes operating at elevated continuous temperatures, where a standard pH electrode would not be sufficient. The high-temperature gel and sealed cartridge reference system are specifically designed for these conditions, ensuring stable and long-lasting performance. The zirconium dioxide diaphragm further enhances measurement stability and complements the robust overall design. With the Pg13.5 screw head (S8) and 120 mm immersion length, the electrode can be integrated into many common measuring setups. As this version is supplied without additional type extensions, it is particularly suitable for users seeking a clearly defined high-temperature standard solution without extra features. Typical applications processes with elevated continuous temperatures sterilization applications measuring points requiring reliable pH monitoring under thermally demanding conditions fluoride-containing media up to 1000 mg HF/l

If you are looking for a pH electrode for hot process conditions and value HT glass, hole diaphragm, high-temperature gel, and a salt reservoir, this JUMO tecLine version is an excellent choice. JUMO tecLine pH electrode with glass shaft, high-temperature gel, hole diaphragm, Pg13.5 screw head, 120 mm and salt reservoir This tecLine pH electrode is designed for demanding pH measurements at elevated continuous temperatures. It is particularly suitable for processes where standard electrodes are exposed to higher thermal stress and therefore require a specially designed solution. The combination of HT glass, high-temperature gel, hole diaphragm, and salt reservoir makes this version especially relevant for applications where high temperatures and more challenging media occur together. Technical data Basic type: glass shaft Active element: HT glass Measuring range: pH 0 to 14 Temperature range: 0 to +135 °C Diaphragm: hole diaphragm, gel made of polymerized solid electrolyte (“diaphragm-less”) Electrical connection: Pg13.5 screw head (S8) Reference system: high-temperature gel, sealed, cartridge reference system Immersion length: 120 mm Type extension: salt reservoir (837) Advantages of this version A key advantage of this electrode is its suitability for temperatures up to +135 °C. This makes it especially relevant when pH measurements must remain reliable not only under normal conditions but also in permanently hot or thermally demanding processes. The HT glass is designed for the full pH range from 0 to 14 and is specifically developed for high-temperature applications. This makes the electrode a suitable solution for thermally demanding industrial processes. Why choose this electrode? This version is particularly suitable when, in addition to temperature resistance, a robust solution for more demanding media is required. The hole diaphragm with gel made of polymerized solid electrolyte is designed for applications where conventional diaphragms may clog or become contaminated more quickly. This ensures reliable operation even under difficult conditions. The salt reservoir is an additional advantage when longer service life is required, especially in challenging processes. The high-temperature gel and sealed cartridge reference system complete this robust, process-ready design. With the Pg13.5 screw head (S8) and 120 mm immersion length, the electrode can be integrated into many standard measuring setups. The combination of high-temperature resistance, clog-resistant diaphragm design, and salt reservoir makes this version particularly suitable for applications where both temperature and media place higher demands on the electrode. Typical applications processes with elevated continuous temperatures sterilization applications measuring points requiring reliable pH monitoring under thermally demanding conditions fluoride-containing media up to 1000 mg/l HF

Typical areas of applicationProcesses with higher continuous temperatures (up to a maximum of 135 °C)Sterilisation applicationsDouble chamber design in the presence of electrode poisonsfluoride-containing (hydrofluoric acid-containing) media up to 1000 mg HF/lSpecial featuresproven JUMO HT glass (pH high-temperature membrane glass) 0 ... 14 pHJUMO DS membrane glass for sterilization applicationsCartridge discharge system with silver ion-free reference electrolyte (gel)Pressure-resistant versions up to 10 bar (50 °C)Temperature range: 0 ... 135 °C1Temperature sensors can be integrated as an optionORP versions with platinum or gold cap up to ±2000 mV