CONDUCTIVITY / SALINITY / OXYGEN METER CCO-401

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The most important features:

• Measures: conductivity, resistivity, salinity in KCl or NaCl, TDS, dissolved oxygen in % of saturation or in mg/l, oxygen in the air in %, atmospheric pressure and temperature.
  
• High accuracy and repeatability in all measuring functions.
• The actually offered meter was modified, what resulted in offering new functions which make the work much easier and fulfil more requirements of the customers.
• Backlit display enables observation of the chosen function and temperature.
• Calibration in 1 ÷ 5 points in conductivity measuring mode and 1 or 2 points during oxygen measurement.
• In conductivity measuring function possibility of entering the α coefficient, in a wide range, chosen depending on the measured solution and automatic introduction of this coefficient for the natural water and ultra pure water.
• Automatic transfer of the salinity measured in the conductivity mode to the oxygen measurement mode with calculation of its influence on the oxygen content value.
• Memory of 4 000 results.
• USB output.
• Small size and weight.
• Waterproof housing (IP-66) enables working in difficult conditions.
• Meets the GLP requirements.

Detailed description:

Characteristic features:

• Very high accuracy meter for use in the field and in the laboratory.
• Backlit display enables observation of the chosen function and temperature.
• ”HOLD” function to freeze the result on the display.
• Signalisation of the result stabilisation with the ”READY” symbol and a sound.
• Possibility of sending the calibration report to a PC - up to 10 last calibrations.
• 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.

In the oxygen measurement function:

• Accurate, durable, easy in use and maintenance galvanic oxygen sensor COG-1.
• Automatic calculation of atmospheric pressure influence on oxygen concentration in water in during measurement in mg/l.
• Automatic transfer of the salinity measured in the conductivity mode to the oxygen measurement mode with calculation of its influence on the oxygen content value.
• 1 or 2 point oxygen sensor calibration.
• When properly handled and maintained, the sensor may work for several years.
• Wide measuring range enables measurements in lakes with blooming vegetation.

In the conductivity measurement function:

• Full measuring range enables measurements in ultra pure water as well as in very salty solutions.
• 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.
• Calibration by entering the constant K in range 0.010 ÷ 19.999 cm^-1 or in standard solutions.
• Possibility to store the constant K of 3 cells which cover whole measuring range.
• Possibility of changing the reference temperature.
• Automatic calculation of conductivity into salinity in NaCl or KCl on the basis of the real characteristics instead of a constant coefficient, what greatly increases accuracy.
• Possibility of defining the TDS value with entering the TDS coefficient in range 0.2 ÷ 1.0.
• The solution resistivity measurement option added.
• Possibility to make measurements of electric admittance of tree seedlings (determining the vitality of seedlings with a special sensor).
• High accuracy conductivity cell ECF-1 Measuring range 0 ÷ 400 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.

In the atmospheric pressure measurement function:

• Possibility of observation of atmospheric pressure value on the meter’s screen.

Other features:

• Automatic or manual temperature compensation.
• Internal clock with date.
• Datalogger of 4000 data sets.
• Non-volatile memory of the stored results and calibration data
• Storing the date of next calibration and remembering it, in the right moment, to the user.
• Powered by rechargeable batteries 2 x AA (1.5 V), or by power adapter, with internal charging of batteries.
• Connecting with a PC by micro USB output.
• The meter meets the GLP requirements.
• 24 months of warranty for the meter.