The instrument is used for conductive measurement / control of the electrolytic conductivity, the resistivity or the TDS value. In addition, the JUMO AQUIS 500 CR offers the possibility of displaying the measured conductivity according to a customer-specific table. display.Both conductive two-electrode and four-electrode measuring cells can be connected to the device. The temperature measurement is carried out as a second input variable with a Pt100/1000. Depending on the measured variable, specific automatic temperature compensation is possible.The unit is operated via keys and a large LC graphic display. This display makes it easy to read the measured value. The display of the parameters in plain text simplifies configuration 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.Typical areas of application:Universally applicable in water and wastewater management, service water, process water and wastewater, drinking, well and surface water, pure and ultrapure water applications, pharmaceutical water applications (e.g. according to USP, Ph.Eur., WFI), water quality measurements, TDS measurements (ppm or mg/l).Special features Direct switching option to specific      - specific conductivity (µS/cm or mS/cm)      - specific resistance (kΩ x cm or MΩ x cm)      - TDS measurement (ppm or mg/l)      - customer-specific tableAutomatic temperature compensation: off (e.g. USP), linear, ASTM, natural waters (EN 27888/ISO 7888)Large LC graphic display with backlightingDisplay presentation selectable: large digits, bargraph or tendency displayCalibration options depending on measured variable: cell constant and temperature coefficientCalibration logbookConnection possibility of two-electrode measuring cells (standard) or four-electrode measuring cellsActivatable contamination detection Autorange operation Protection class IP67 for surface mounting Protection class IP65 for control cabinet mountingOperator languages switchable: German, English, French; other languages via setup program RechargeableThrough setup program: convenient programming, system documentation, Loading of further operator languages

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

Indicator/controller for digital sensors with Modbus protocolThe unit has 1 digital interface, 1 analogue temperature input and 1 binary input. The digital interface is suitable for connecting sensors that have a Modbus RS485 interface. If the connected sensor does not have an integrated temperature sensor, a resistance thermometer Pt100, Pt1000 or NTC/PTC (up to 4 k) can be connected to the analogue temperature input. The power supply for the digital sensor is integrated in the unit.The LCD graphic display allows the input signals to be shown as digits or as a bar graph. The display of the parameters in plain text makes operation easy to understand and safe.With two optional relay change-over contacts, both simple switching or alarm functions and sophisticated control tasks with P, PI, PD and PID behaviour can be realised. On request, the unit can also be supplied with two freely parameterisable and scalable analogue outputs (0 to 10 V, or 0(4) to 20 mA).Special featuresDisplay: mg/l, ppm, % SAT, %, ‰, g/l, ppb, µg/l, NTU, FNU, etc.Special displays are also possible with the setup programmeLarge LCD graphic display with backlightingDisplay representation selectable: large digits, bargraph or trend displayIntegrated calibration routines:depending on the sensor: zero point, full scale and 2-pointCalibration logbookProtection class IP67 for surface mountingProtection class IP65 for control cabinet mountingOperator languages (switchable): German, English, Frenchthrough setup program (option): convenient programming, system documentation, reloading of additional operating languages