Pentair Water Blaulain SFE Guía De Usuario página 33

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Note 1: calculation of number of regenerations before a salt alarm is
generated.
The following formula is used to calculate the number of regenerations before a salt
alarm is generated:
where:
M.xxx: amount (in kg) of salt found in the brine tank;
L.xxx: volume of resin, expressed in litres (l);
G.xxx: amount of salt (in grams) required to regenerate 1 litre of resin, (g/l).
The result of the formula gives the number of regenerations before generating a salt
alarm and must be typed, rounded down to the closest integer (for example 15.4 must be
rounded to 15), in the advanced menu.
Note 2: calculation of the volume of treatable water between two
regenerations.
The following formula is used to calculate the volume of treatable water (in litres)
between two subsequent regenerations:
where:
d.xxx: incoming water hardness, in French degrees (°f);
do.xx: desired outgoing water hardness, in French degrees (°f);
C:xx: exchange capacity of the regenerating resin used (expressed in °f x m3/l or in
grams of CaCO3);
L.xxx: volume of resin, expressed in litres (l).
The result of the formula gives the volume of treatable water (in litres) between two
regenerations and must be typed, rounded down to the closest integer (for example 34.6
litres must be rounded to 34 litres), in the advanced menu.
Note that the desired outgoing water hardness value must be compatible with
the provisions of the regulations in force where the controller is used.
(M.xxx) * 1000
SA
=
(L.xxx) x (G.xxx)
(L.xxx) x (C.xx) x 1000
V
=
treatable-water
(d.xxx - do.xx)
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