WATERPROOF PORTABLE MULTIFUNCTION METER CX - 401

• CX-401 measures: pH, redox potential (mV), conductivity, resistivity, salinity in KCl or NaCl, TDS, dissolved oxygen in % of saturation or in mg/l, atmospheric pressure and temperature.
• “HOLD” function to freeze the result on the display.
• Signalisation of the result stabilisation “READY” with symbol and sound.
• Possibility of sending to a PC a report of calibration – up to 10 last calibrations.
• The meter may be used for the field measurements as well as during accurate laboratory work.
• The meter is equipped with an easy-to-read back-light LCD display with brightness control.

• All functions are distinctive by very high accuracy and repeatability. Unification of the operating procedures in all measuring functions makes working trouble-free.
• Low weight and small size make working in the field easier. Waterproof housing (IP-66) enables working in difficult conditions.

• Depending on the kind of applied electrode it may be used for clean water, sewage, soil, meat, paint etc.
• Calibration of the pH electrode in 1 to 5 points.
• Automatic detection of buffer solutions, their values may be set by the user.
• Automatic correction of the pH sample solution value changes along with the temperature changes for NIST standards.
• Automatic or manual temperature compensation.
• Possibility of storing characteristics of 3 pH electrodes enables their quick replacing – very useful feature during field work.
• Automatic control of the electrode’s condition.
• Readout of the pH electrode condition and data – the zero offset and slope percentage may be checked.

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

• Full measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions.
• The liquid resistivity measurement option added.
• 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 ÷ 10 % / °C chosen depending on the measured solution.
• Possibility of changing the reference temperature.
• High accuracy conductivity cell ECF-1 available as additional equipment. 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 to measure electric admittance of tree seedlings – checking the vitality of seedlings after purchasing a special sensor.

• Possibility of measurement of the oxygen dissolved in the liquids and oxygen in the air.
• Atmospheric pressure measurement with automatic calculation of its influence on measurement of the dissolved oxygen in water in % or mg/l.
• Automatic conversion of the salinity measured in the conductivity mode to the oxygen measurement mode with calculation of its influence on the oxygen content value.
• Easy in use and maintenance galvanic oxygen sensor.
• 1 or 2 point oxygen sensor calibration.
• Wide measuring range enables measurements in lakes with blooming vegetation.

• Automatic or manual temperature compensation.
• Internal clock with date.
• Collecting up to 4000 results in the internal data logger with temperature, time and date, also taking series of measurements possible. Non-volatile memory of the stored results and calibration data Possibility of connecting with a PC by micro USB connector Software for data transmission and collection delivered in set.
• Powered by rechargeable batteries, or power adapter with USB – micro USB cable.
• The meter meets the GLP requirements.
• 24 months of warranty for the meter.
• The meter was awarded with a golden medal on International Fair EUROLAB.
• Possibility of choosing the meter equipped with separate connectors or with multi-pin connector for multifunction measuring head.