WATERPROOF pH / OXYGEN METER CPO-401

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The most important features:

• Measures pH, redox (mV), atmospheric (air) oxygen and oxygen dissolved in water and sewage in % of saturation or mg/l, temperature and atmospheric pressure.
• Very high accuracy meter for use in the field and laboratory.
• The current model has been upgraded with new functions that make operation easier.
• Backlit display enables observation of the chosen function and temperature.
• pH calibration in 1 to 5 points, oxygen calibration in 1 or 2 points.
• Possibility of entering the salinity value measured with a conductivity meter, with automatic correction of the oxygen result in mg/l.
• The meter measures atmospheric pressure and automatically compensates its influence on the oxygen readout in mg/l.
• Memory of 4000 results.
• USB output.
• Small size and weight.
• Waterproof housing.
• Meets the GLP requirements.

Detailed description:

Characteristic features:

• Used for work in the field and in the laboratory.
• High accuracy and repeatability in all measuring functions.
• “HOLD” function to freeze 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.
• Standardised procedures in all measuring functions make working easier.
• The meter is equipped with easy-to-read backlit LCD with brightness control.
• Low weight and small size make working in the field easier.
• Waterproof housing (IP-66) enables work in difficult conditions.

In the pH measuring function:

• Depending on the electrode used, measurements in clean water, sewage or soil are possible.
• pH electrode calibration in 1 to 5 points.
• Automatic detection of pH buffer values entered by the user.
• When NIST pH standards are used, their stored values are automatically corrected for temperature, so there is no need to heat or cool the solutions.
• Storing the characteristics of 3 pH electrodes enables their quick replacement – very useful 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.

In the redox (mV) measuring function:

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

In the oxygen measuring function:

• Possibility to measure oxygen dissolved in water in % or mg/l and oxygen saturation in the air in %.
• Galvanic dissolved oxygen sensor, accurate and easy to operate, when properly handled and maintained the sensor may be efficient for several years.
• The meter measures atmospheric pressure and automatically compensates its influence on the oxygen readout in mg/l.
• Calibration of the oxygen sensor in 1 or 2 points.
• Automatic or manual temperature compensation.
• Possibility of entering the salinity value measured with a conductivity meter, with automatic correction of the oxygen result in mg/l.
• Wide measuring range enables measurements in lakes with blooming vegetation.

Other features:

• Automatic or manual temperature compensation.
• Clock with date.
• Internal datalogger enables storing up to 4000 results, taken in series or singly with temperature, time and date.
• The results and characteristics are stored in non-volatile memory.
• Storing of the next calibration date.
• Possibility of connecting with a PC by micro USB connector.
• Possibility of protecting the date and time against changes by an unauthorised person using a password.
• The data transmission software enables printout of the data in a form protected against any changes.
• Software for data transmission and collection delivered in the set.
• Powered with rechargeable batteries, or power adapter with USB - micro USB cable.
• The meter meets the GLP requirements.
• 24 months of warranty for the meter.