Calibration Procedure




pH


For the calibration of the SENSOGLASS pH electrode/pH meter set, proceed:

1 – With the pHmeter in operation press the MENU button;

2 – The first menu item is "Adjust pH", press YES to confirm;

3 – Rinse the electrode with deionized water and wipe gently with absorbent paper;

4 – Will be asked to immerse the electrode in the buffer solution of pH 7.01;

5 – Activate the button YES;

The equipment will indicate on display that the measure is processing. At this point it will start a countdown from 30 seconds and when de pH sensor stabilize, the pH meter moves to the next calibration point.

6 – Rinse again the electrode with deionized water and wipe gently with absorbent paper;

7 – Immerse the pH electrode in the buffer requested solution (pH 4, 01 or pH10, 01);

8 – Activate the button YES;

9 – After a few seconds the display will show a message with the percentage of quality (SLOPE) of electrode, for example:
SLOPE OF ELECTRODE 98% This percentage indicates the electrode life assuming that the buffer is not contaminated. 9 - Press YES to complete the calibration procedure and start your measurements.


ORP


For the calibration of ORP electrode/pH meter, proceed:

1 – With the pH meter in operation press the MENU button;

2 – Look for the "Adjust ORP" function and press YES to confirm;

3 – Rinse the electrode with deionized water;

4 – Dip the ORP electrode in the buffer solution 220mV;

5 – Activate the button YES; the equipment will indicate on display that is processing the measure. At this point it will start a countdown from 30 seconds and when the ORP sensor stabilizes the pH meter calibration completes.

6 – Press YES to finalize the procedure and start your measurements.


CONDUCTIVITY


For the conductivity calibration is necessary to know the constant (K) of the used cell and calibration standard solution. Always use conductivity standards as closely as possible of the constant (K) of the cell.

For the calibration of your cell of conductivity/condutivimeter, proceed:

1 – With the condutivimeter in operation press (MENU) and navigating with the RIGHT/LEFT ARROW of machine's panel, and search for "Calibration Solution";

2 – Press YES to confirm; 3 – Adjust the conductivity value of the solution to be used in the calibration, press YES;

4 – Then adjust the temperature coefficient (TC), usually 2.2 and press YES;

NOTE.: It is not necessary to inform the constant value (K) of the cell, because this will be calculated and updated by the condutivimeter.
5 – With the RIGHT/LEFT ARROW, look for the "SET CONDUCTIVITY" function;

6 – Press YES to confirm;

7 – Dip the conductivity cell in the chosen standard solution;

8 - Press YES again;

8 – Wait until the end of calibration process and press ESC to start your measurements.