CPC-401 Profesionálny vodotesný merač pH/ORP a vodivosti v kufríku  

Elmetron CPC-401 Profesionálny vodotesný merač pH/ORP, vodivosti a slanosti v kufríku


Na skladeDostupné množstvo: 1 ks.

384,00 €

384,00 € bez DPH

The most important features:

  • Very high accuracy meter for use in the field and laboratory.
  • Measures pH, redox potential (ORP), conductivity, salinity, TDS, resistivity and temperature.
  • Backlit display enables observation of the chosen function and temperature.
  • Calibration in 1 to 5 points.
  • In the pH function automatic correction of the pH standard solution value changes, along with the temperature changes for NIST standards.
  • In the conductivity measurement function automatic selection of the temperature coefficient for natural and ultra pure water.
  • Memory of 4 000 results.
  • USB output.
  • Small size and weight.
  • Waterproof housing.
  • Meets the GLP requirements.

Detailed description:

CPC-401 is designed for accurate measurement of: pH, redox potential, conductivity, resistivity, salinity and temperature. The currently offered model has been modified and is equipped with new functions which make working easier and ensure higher accuracy.

Characteristic features:

  • Used for work in the field and in the laboratory.
  • Waterproof housing (IP-66) facilitates work in difficult conditions.
  • The meter is equipped with easy-to-read backlit LCD with brightness control.
  • ”HOLD” function to freeze the result on the display.
  • Signalisation of the result stabilisation withe the ”READY” symbol and a sound.
  • Possibility of sending the calibration report to a PC - up to 10 last calibrations.
  • Standarisation of the procedures in all measuring functions makes working easier.

In the pH measurement mode:

  • Depending on the chosen electrode, making measurements in clean water, sewage and soil is possible.
  • pH electrode calibration in 1 ÷ 5 points.
  • Automatic detection of buffer solutions, introduced by the user.
  • Automatic correction of the stored pH standard solution value along with the temperature changes for NIST standards, what eliminates the necessity of warming up or cooling them down.
  • Storing of 3 pH electrodes’ characteristics enables their quick replacing – very useful feature during field work.
  • Automatic evaluation of the electrode’s condition.
  • Readout of the pH electrode condition and data - the offset and slope percentage may be viewed.
  • The pH and conductivity measurement circuits are isolated, so there is no interference.

In the redox (mV) measuring function:

  • Precise redox potential measurement (accuracy 0.1 mV).
  • Possibility of making the relative measurement.

In the conductivity measurement function:

  • Wide measuring range enables measurements in ultra pure water, natural water as well as in salines and chemical compounds.
  • Resistivity measurement of the tested liquid.
  • Salinity measurement in conversion to NaCl or KCl.
  • Defining TDS (Total Dissolved Solids) based on conductivity measurement.
  • 6 sub-ranges switched automatically.
  • Wide range of α coefficient chosen depending on the type of measured solution.
  • 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 are determined in norm EN27888:1999 and concern 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.
  • Possibility of changing the reference temperature.
  • In set with high accuracy ECF-1 conductivity cell. 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.
  • Possibility of storing K constants of 3 conductivity cells.
  • Automatic conversion of conductivity into salinity on the basis of the real characteristics and not a constant coefficient, what greatly increases accuracy.
  • Possibility to measure electric admittance of tree seedlings (checking the vitality of seedlings with a special sensor).

Other features:

  • Automatic or manual temperature compensation.
  • Internal clock with date.
  • Internal datalogger enables storing up to 4000 measurements taken as single or in series with time, temperature and date.
  • Non-volatile memory of the stored results and calibration data.
  • The next calibration date reminder.
  • Possibility of connecting with a PC by micro USB connector.
  • Change of the date protected by a password
  • The data transmission software enables printout of the data in a form protected against any changes.
  • 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.
  • Software for data transmission and collection delivered in the set.

The standard set includes: ECF-1 conductivity sensor, CT2B-121 temperature sensor with Pt-1000B resistor, EPS-1 pH electrode for measurements in clean water. It should not be used in other types of liquids. Measurements in liquids with sediments should be made with use of the IJ-44A pH electrode, which enables measurements in various samples of both pure and contaminated liquids and semi-solids. Its unusual construction (”intermediate junction”) protects the real junction (diaphragma) of the electrode against clogging, ensures stable measurements in these types of liquids or semi-liquid masses, in which other electrodes stop working quickly. When properly handled, the electrode's lifetime is longer than the standard electrodes.


FunctionpHmVConductivity /
Range -6.000 ÷ 20.000 pH ±1999.9 mV 0 ÷ 1999.9 mS/cm
(autorange) /
0 ÷ 296 g/l NaCl
0 ÷ 239 g/l KCl
-50.0 ÷ 199.9 °C
(±1 digit)
±0.002 pH* ±0.1 mV* up to 19.99 mS/cm ±0,1%*
above 20 mS/cm: ±0,25%* /
salinity 2%*
±0.1 °C**
Temperature compensation -5.0 ÷ 110.0 °C - -5.0 ÷ 70.0 °C -
Input impedance >1012Ω >1012Ω - -
α coefficient - - 0.00 ÷ 10.00 %/°C -
K constant - - 0.010 ÷ 19.999 cm-1 -
Resistivity Range: 0.500 Ωcm ÷ 200 MΩcm, accuracy ±2% of the measured value*
Temperature sensor Pt-1000 standard or accurate
Power supply Rechargeable batteries: 2x AA 1.2 V, 5 V/1000 mA micro USB power adapter
Weight 220 g
Dimensions (mm) L = 149, W = 52, H = 22
* The accuracy of the meter only.
** The accuracy of the meter only. The total error includes the meters and probe’s accuracy. In the range 0 ÷ 100 °C the acceptable error of the probe with Pt-1000B resistor: ±0.8 °C, with Pt-1000A resistor: ±0.35 °C.

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