General-tools-and-instruments DPHC2001 Manuale Utente Scaricare il pdf (Pagina 11)

CAL

4.00

* The texts " CAL " will flash for around 5 seconds.

After that, the meter calibrate itself automatically.

The upper display will show the calibrated value,

the lower display will show the temperature value.

4.00

25.0

6) Rinse the electrode with distilled water again.

7) Repeat above (4) to (5) procedures two times at least.

8) The instrument and electrode are now finished the

" TWO POINTS CALIBRATION " & ready for the

measurement.

4-4 Singal Point Calibration

If PH4 and PH10 buffer solution are not available, single

point (PH7) calibration can be executed from procedures

of 4-3 (1) to (4). However for more accurate measuring

result and linearity, two points calibration is always

recommended.

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General-tools-and-instruments DPHC2001 Manuale Utente Pagina 11