6
JUDO i-soft@home
About these operating instructions
1.2
Safety instructions and dan-
gers due to non-observation
In particular, non-observation of the general
danger symbols is associated with the fol-
lowing typical hazards:
– Failure of important water softening unit
functions.
– Endangering of persons due to electrical
and mechanical effects.
– Endangering of persons and the envi-
ronment due to leaks.
Any working methods that might endanger
safety must be avoided.
Non-observation of these operating instruc-
tions and the safety instructions herein may
endanger persons, as well as the environ-
ment and the device itself.
1.3
Units used
The following units which do not form part of
the SI (Système International d’Unités) sys-
tem are used:
Quan-
tity
Unit Conversion
Nomi-
nal di-
ameter
1"
corresponds to DN 25
Pres-
sure
bar
1 bar = 100000 Pa
= 0.1 N/mm²
≈
14.5 psi
Water
hard-
ness
1)
1) For conversion of water hardness
units see chapter 12 “Water hard-
ness conversion table”.
°dH 1
˚
dH = 0.1783 mmol/l
Alkaline earth ions
(hardness
producing ions)
= 17.8 ppm CaCO
3
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