Gecko in.clear 0605-500002, Руководство пользователя, Страница: 17 / 46

16
in.clear user manual
Organic Matter
Substances left behind
by spa users such as oil,
sweat and dead skin cells
that serve as "food" for
bacteria.
Calcium Hardness (CH)
Calcium Hardness
describes the
concentration of calcium
in your spa water.
Total Hardness (TH)
Total Hardness describes
the concentration of
calcium and magnesium
in your spa water.
Bather Load
This term is used to
describe the number
of bathers using a spa,
combined with the length
and frequency of its usage.
The higher the bath usage,
the greater quantity of
chemicals needs to be
added to maintain the
same spa water quality.
TDS
Total Dissolved Solids
(TDS) is an expression for
the combined content of
all inorganic and organic
substances contained in a
liquid which are present
in a molecular, ionized or
micro-granular (colloidal
sol) suspended form.
pH
pH (potential hydrogen) is
a measure of the acidity or
basicity of a solution.
PPM
"Parts-per million"
notation is used to denote
relative proportions or
a comparative ratio in a
given measured quantity.
The expression "1 PPM"
means a given property
exists at a relative
proportion of one part per
million parts examined, as
would occur if a water-
borne pollutant was
present at a concentration
of one-millionth of a
gram per gram of sample
solution.
Total Alkalinity (TA)
Total Alkalinity or TA is a
measure of the ability of
a solution (such as water)
to neutralize acids to the
equivalence point of
carbonate or bicarbonate.
Glossary