The most important features:

Detailed description:

CPC-502 is a device of high accuracy, which measures: pH, redox potential, conductivity, resistivity, salinity, TDS 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:

In the pH measuring function:

In the mV and redox potential measurement function:

In the conductivity measuring mode:

In the redox (mV) measuring function:

Other features:

The standard set includes: ECF-1 conductivity cell, CT2B-121 temperature probe with Pt-1000B resistor and EPS-1 pH electrode for measurements in clean water, which should not be used in other types of liquid. Measurements in liquid with sediment should be made with use of IJ44A pH electrode. Its unusual construction ("intermediate junction”) protects the real junction (diaphragm) of the electrode against clogging, ensures stable measurements in these types of liquids or semi-liquid mass, in which other electrodes stop working quickly. When properly handled, the electrode's lifetime is longer than the standard electrodes.
In comparison with the CPC-505 meter, the CPC-502 model is equipped with a smaller display.

Function pH mV Conductivity /
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 %
±0.1 °C**
Temp. compensation -5.0 ÷ 110.0 °C - -5.0 ÷ 70.0 °C -
Input impedance >1012Ω >1012Ω - -
α coefficient - - 0.00 ÷ 10.00 %/°C -
K constans - - 0.010 ÷ 19.999 cm-1 -
Resistivity Range: 0.500Ωcm ÷ 200MΩcm, accuracy ±2% of the measured value*
Temperature sensor Pt-1000 standard or accurate
Power supply 6 V / 2 A power adapter
Printer Thermal, width: 60 mm
Weight 660 g
Dimensions (mm) L = 200, W = 180, H = 20/50
PC connection USB
* 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.