3
Safety chapter
The following signal words are used in these operating instructions to
denote different severities of danger:
Signal word
Meaning
WARNING
Denotes a possibly dangerous sit‐
uation. If this is disregarded, you
are in a life-threatening situation
and this can result in serious inju‐
ries.
CAUTION
Denotes a possibly dangerous sit‐
uation. If this is disregarded, it
could result in slight or minor inju‐
ries or material damage.
The following warning signs are used in these operating instructions to
denote different types of danger:
Warning signs
Type of danger
Warning – corrosive substances.
Warning – automatic start-up.
Warning – high-voltage.
Warning – explosive substances.
Warning – toxic substances.
Warning – danger zone.
Firstly always observe these two basic rules:
1. - The two chemicals Bello Zon
®
acid (dilute HCl) and Bello Zon
®
chlorite (dilute NaClO
2
) must never be brought into contact except in
the mixer vessel!
Otherwise hazardous ClO
2
gas forms!
2. - Never operate the chlorine dioxide Bello Zon
®
CDL with incorrectly
diluted acid or incorrectly diluted sodium chlorite!
Otherwise ClO
2
concentrations are formed for which the system is
not designed! Moreover chlorite concentrations that are harmful to
health can form in the treated water.
Identification of safety notes
Warning signs denoting different types of
danger
The basic rules
Safety chapter
7