µdox – multiparameter handheld instrument for pH, redox potential, dissolved oxygen, total hardness and acid capacity μdox is characterized by its ease of use combined with the measurement quality of high-quality laboratory equipment. It offers accurate, fast and reliable measurements, also in trace level, directly on site - in the field or in production. The multiparameter handheld measuring device determines relevant water values for the qualitative verification by means of its two sensors. These include pH, redox potential, total hardness, acid capacity and dissolved oxygen. The sensors transmit the measured signals to the handheld measuring unit for an optimal displaying of data. The total unit is particularly easy to handle. Fast, accurate measurement The dissolved oxygen measurement makes it possible to measure the saturation into the residual oxygen range within a few seconds. The pH measurement has a specially built pH/redox electrode, which makes precise measurements possible, especially in low-salt solutions. Low measuring range It is measured up to a residual oxygen content of up to 1 ppb, which allows an accurate measurement in very small concentrations. This allows, for example, the oxygen measurement of boiler feed water in power stations. The oxygen measurement considers the surrounding oxygen partial pressure as well as the temperature and salinity in solutions. Determination of several parameters In addition to measuring the dissolved oxygen, a second temperature compensated electrode is used to analyze pH and redox. Total hardness and acid capacity are measured by means of indicators. Automatic sensor and pH buffer detection The pre-calibrated and immediately usable sensors are independently recognized by the handheld measuring device. Standardized pH buffer recognizes the device automatically, too. Menu-controlled simple device operation The background-lit color LCD of the device allows the display of dynamic measurement deviations in text form. μdox has an uncomplicated self-explanatory user interface. This allows users of all levels of experience to operate intuitively. Compact LAB-pocket measuring case The measuring case is composed of a mini-laboratory for the analysis. This means that all measurements can also be accurately, quickly and reliably identified. The space-saving case ensures the safe storage of μdox and accessories during transport. Water and dustproof The handheld measuring device has a housing for robust work and has a waterproof construction, which corresponds to protection class IP67. Thus leads to best results even under difficult conditions. Data storage The determined data can be variably stored and visualized by measuring locations. There is the possibility of transferring data to the computer. OFS Online Fluid Sensoric GmbH Heidelbergweg 9 07580 Ronneburg | Germany Tel: +49 36602 5124 0 Fax: +49 36602 5124 29 [email protected]

pH-measurement (temperature compensated) measurement range resolution accuracy calibration temperature range redox-measurement measurement range accuracy calibration temperature range oxygen (temperature, air pressure and salinity compensated) response time (25°C) measurement range resolution accuracy calibration temperature range t90: 13 s ; tgg: 30 s 1 ppb to 20 ppm 0.2 ppb to 500 ppb 0.01 ppm to 20 ppm ± 1 ppb to 0,5 ppm ± 0.1 ppm to 20 ppm two-point procedure 0% and 100% 5°C to 50°C total hardness measurement range resolution accuracy measurement 0.1 mmol/l to 5.4 mmol/l 0.018 mmol/l ± 5...