Description

The calibrate (calibration) of a meter in order to ensure that the meter takes the correct readings.
Theoretically, the measurement of pH is a complex issue. By using the glass electrode there is measured a voltage which is converted into a readable pH value on the display.
The calibration is intended to set the meter. For this you need pH 7.01 and pH 4.01
Without calibration, the measurement can never work properly.
Beware: The electrode only works well if it is wet.
If the electrode has been the first 8 hours in additive solution places for calibration or use. Longer drying time

When:
This depends on the degree of use and on the spot. pollution, but at least every month.
Even if you get the meter for the first time and after each cleaning, calibration is necessary for a good measurement result.

How:
Place the pH electrode in the pH4.01 solution and wait for the reading to stabilize.
The electrode now gives a value of pH 4.01 again, if this is not the case, the instrument enables you to this value.
How You must set the instrument depends on the type of instrument, consult the manual for the meter.
Depending on the type, set the meter manually (turning a screw) or automatically (using a key combination) in.

Why:
pH 7 is exactly centered on the pH scale.
A pH meter must therefore always be calibrated first (calibrated) to pH7 to be in order to ensure that the measurements are carried out optimally.

After that you use the pH4.01 solution to adjust it to the right range.

Additional information

Weight N/A
Dimensions N/A
content

100 ml, 20 ml

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