General-tools-and-instruments PWM301 Manuel d'utilisateur télécharger pdf (Page 9)

3)Secondary check the reading values ( uS ) for the water

that already make the treatment ( after the FILTER ),

ref. Fig. 4.

Fig. 4

4)If the water quality already be improved, then the reading

values should be change with a certain values, other wise

the FILTER is dirty or not under the normal condition.

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General-tools-and-instruments PWM301 Manuel d'utilisateur Page 9