BENCHTOP LABORATORY MULTIFUNCTION METER CX - 505

• CX-505 measures PH, redox potential (mV), conductivity, salinity, resistivity, concentration of oxygen dissolved in water in % of saturation or in mg/l, atmospheric pressure and temperature.
• The measurements made in all measuring functions are of very high accuracy and stability.
• Unification of the procedures in all measuring functions makes working easier.
• “HOLD” function to freeze the result on the display. Signalisation of the result stabilization “READY” with symbol and sound.
• Possibility of sending to a PC a report of calibration – up to 10 last calibrations.

• Calibration of the PH electrode: 1 to 5 points.
• Automatic detection of the buffers’ value entered by the user. Automatic correction of the standard solution value (NIST) along with the temperature changes.
• Possibility to store characteristics of 3 electrodes makes changing them easily.
• Automatic evaluation of the electrode’s condition.
• Depending on the chosen electrode possible measurements in pure water, sewage, pastes, etc.

• Precise redox potential measurement (accuracy 0.1mV). Possibility to measure redox potential relatively to the entered or measured reference potential – Vref.
• Possibility of automatic calculation of the redox reading in relation to the chloride/silver electrode to the hydrogen electrode.

• Wide measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions.
• Newly introduced function is the resistivity measurement of the tested liquid.
• Salinity measurement in NaCl or KCl on the basis of the actual real characteristics.
• Defining the TDS (Total Dissolved Solids) based on conductivity measurement.
• 6 sub-ranges switched automatically.
• In case of measurements of natural water with conductivity from 60 μS/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined in norm EN27888:1999 and concerns surface waters, deep water and well water. This solution lowers the measurement error.
• The measurement accuracy of the ultra pure water with temperature compensation was increased by automatic adjustment of the α coefficient depending on the temperature and kind of trace contaminations.
• Calibration by entering the constant K of the cell or in standard solutions in 1 to 5 points.
• Wide range of α coefficient 0 to 10 % / °C chosen depending on the measured solution.
• Possibility of changing the reference temperature.
• In set with high accuracy conductivity cell ECF-1. Measuring range 0÷500 mS/cm sufficient for measurements in ultra pure water and high salt concentration samples. Metal electrodes are easy to clean and PVC body protects it against mechanical damage.
• Possibility of storing constant K of 3 conductivity cells. Automatic conversion of conductivity into salinity in NaCl or KCl on the basis of the actual characteristics and not a constant coefficient, what greatly increases accuracy.

• Galvanic dissolved oxygen sensor.
• Each of the models equipped with a function of automatic atmospheric pressure measurement with calculation of its influence on the oxygen measurement readout in mg/l.
• The meter with dissolved oxygen sensor are easy to operate.
• Calibration of the oxygen sensor in 1 or 2 points.
• Automatic or manual temperature compensation.
• Possibility of introducing the salinity value with automatic calculation of its influence on the result of oxygen measurement.
• The meter automatically counts the influence of salinity measured in the conductivity mode on the oxygen measurement result.

• Automatic or manual temperature compensation.
• Internal clock with date.
• Internal data-logger enables storing up to 4000 measurements taken as single or in series with time, temperature and date.
• The results and calibration data are stored in non-volatile memory.
• Remembers the next calibration date.
• USB output for connecting with PC.
• The meter meets the GLP requirements.