CO-502, CPO-502, CCO-502 - PH, Conductivity, Oxygen Meters

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pH-meters, Conductivity meters, Oxygen Meters, Ion meeters, Humidity meters, Thickness gauges OXYGEN METER CO-502, pH / OXYGEN METER CPO-502 CONDUCTIVITY / SALINITY / OXYGEN METER CCO-502 Technical data Data sheet as pdf image Zoom image Zoom

The most important features

  • Accurate meters for laboratory use.
  • Have a built in 60 mm thermal printer.
  • All the models measure dissolved oxygen in % or mg/l, atmospheric pressure and temperature.
  • The CCO-502 additionally measures conductivity and salinity.
  • The CPO-502 enables measurements of pH and redox (ORP) potential.
  • Calibration in 1 or 2 points (0 and 100 %).
  • The display enables observation of the chosen function and temperature.
  • In the pH function in CPO-502 automatic correction of the pH standard solution value changes, along with the temperature changes for NIST standards.
  • Memory of 4000 results.
  • USB output

Detailed description:

All the models measure: concentration of oxygen dissolved in water and sewage in % or mg/l, oxygen saturation in air, temperature and atmospheric pressure. The most recent model has been improved with more possibilities providing easier operation. The meters are equipped with a built-in thermal printer (60 mm).
  • CCO-502 model additionally measures conductivity and salinity.
  • CPO-502 model additionally measures pH and redox potential.
Standardised operating procedures for all functions make working easier.

Characteristic features:

  • Easy-to-read backlit LCD facilitates working.
  • Standardised procedures in all measuring functions make working easier.
  • “HOLD” function enables freezing the result on the display.
  • Signalisation of the result stabilisation with the “READY” symbol and a sound.
  • Possibility of sending a calibration report to a PC - up to 10 last calibrations.

Oxygen measurement function:

  • Galvanic oxygen sensor, accurate and easy to operate.
  • When properly maintained, the sensor may be efficient for several years.
  • Possibility to measure oxygen dissolved in water in % or mg/l and oxygen saturation in air in %.
  • Calibration of the oxygen sensor in 1 or 2 points.
  • Automatic or manual temperature compensation.
  • All the models have the same housing, they differ in number of buttons and colours.
  • Each model equipped with a function of automatic atmospheric pressure measurement with calculation of its influence on the oxygen measurement readout in mg/l.
  • In CO-502 and CPO-502 models possibility of introducing the salinity value with automatic calculation of its influence on the result of oxygen measurement.
  • CCO-502 model automatically calculates the influence of salinity measured in the conductivity mode on the oxygen measurement result.

Conductivity measurement function in CCO-502:

  • Full conductivity measuring range enables measurements in ultra pure water as well as saline.
  • 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 are determined by the norm EN27888:1999 and concern surface water, deep water and well water. This solution lowers the measurement error.
  • The measurement accuracy of the ultra pure water with temperature compensation has been improved by automatic adjustment of the α coefficient depending on the kind of trace contaminations and temperature.
  • Calibration by entering the K constant in range 0.01 ÷ 19.999 cm-1 or in standard solutions in 1 – 5 points.
  • Wide range of α coefficient chosen depending on a kind of measured liquid.
  • Possibility of changing the reference temperature.
  • Converting the conductivity into salinity in NaCl and KCl proceeds according to the real characteristics, what greatly increases accuracy.
  • Possibility of determining the TDS by entering the TDS coefficient (0.2 to 1.0).
  • Resistivity measurement.
  • In set with high accuracy conductivity cell ECF-1. Measuring range 0÷400 mS/cm is sufficient for measurements in ultra pure water and high salt concentration samples. Metal electrodes are easy to clean.

pH measurement function in CPO-502:

  • The pH and conductivity measurement circuits are isolated.
  • pH calibration in 1 ÷ 5 points.
  • Automatic detection of the buffer solutions’ values entered by the user.
  • Automatic correction of the standard solution’s pH value changes along with the temperature changes for NIST standards, what eliminates the necessity of the standards' temperature adjustment.
  • Storing of 3 pH electrodes characteristics enables to replace them quickly.
  • Automatic evaluation of the electrode’s condition.
  • Readout of the electrode's characteristic (slope, offset).
  • Depending on the kind of applied pH electrode it may be used for clear water, sewage, soil measurements etc.

mV, redox potential measurement function in CPO-502:

  • Precise redox potential measurement (accuracy 0.1 mV).
  • Relative measurement possibility.

Other features

  • Automatic or manual temperature compensation.
  • Stores the next calibration date.
  • Internal clock with date.
  • Internal datalogger 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.
  • USB output for connecting with a PC.
  • Change of the date protected by a password
  • The data transmission software enables printout of the data in a form protected against any changes.
  • The meters meet the GLP requirements.
  • 24 months of warranty for the meter.
  • Pendrive with software for data transmission and collection and user's manual in English included in the set.
In comparison with the CC-505 meter, the CC-502 model is equipped with a smaller display. The standard set includes CT2B-121 temperature sensor with Pt-1000B resistor and COG-1 oxygen sensor. Other accessories depend on the chosen model of the meter.

TECHNICAL DATA
Function O2 (%) O2 (mg/l) Temperature pH (CPO-505) mV / redox (CPO-505) Conductivity / Salinity (CCO-505)
Range 0 ÷ 600%, 0 ÷ 100% in the air, 0 ÷ 60 mg/l -50.0 ÷ 199.9°C -6.000 ÷ 19.999 pH ±1999.9 mV 0 ÷ 1999.9 mS/cm / 0 ÷ 239 g/l KCl 0 ÷ 296 g/l NaCl
Accuracy (±1 digit) ±0.1%** ±0.01 mg/l* ±0.1 °C*** ±0.002 pH* ±0.1 mV* up to 19.99 mS/cm ±0.1%* above 20 mS/cm: ±0,25%* / salinity 2%*
Temp. compens. - 0 ÷ 40 °C - -5 ÷ 110 °C - -5 ÷ 70 °C
Input imped. - - - >1012Ω >1012Ω -
α coefficient - - - - - 0.00 ÷10.00%/°C
Atmosph. press. 800 ÷ 1100 hPa, accuracy ±2 hPa
Resistivity Range: 0.500 Ωcm ÷ 200 MΩcm, accuracy: ±2% of the measured value
Printer thermal, width = 60 mm
Power supply 6 V / 2 A power adapter
Weight 660 g (CPO-502)
Dimensions (mm) L = 200, W = 180, H = 22/50
PC connection USB
* The accuracy of the meter only.
** The accuracy of the meter only. With COG-1 or COG-2 oxygen sensor the accuracy at calibration temperature: ±1 %. By the difference ±5 °C accuracy: ± 3 %, by the difference ±10°C accuracy: ±5 %.
*** 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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