7
2.1.4
Hazardous situations and safety instructions
Situation
Subsystem
Hazard
Action to take
Installation/removal
of UV emitter or
immersion tube
UV reactor
Burn injury
UV emitters become
very hot during use.
Laceration injury
UV emitters and
immersion tubes are
fragile
(quartz glass).
Take the UV system
offline and secure the
master switch to prevent
accidental switch-on.
Depressurise and empty
the UV reactor
Functional checks
UV emitter
UV reactor
UV light causes
damage to eyes and
skin
Never switch on the UV
emitter outside the UV
reactor.
Emptying the reactor
UV reactor
Reactor is
pressurised.
Wear personal protective
equipment (PPE).
Open the vent valve
slowly (pressure relief
valve).
Cleaning the reactor
UV reactor
Chemical burn
Cleaning agents
contain acids.
Take the UV system
offline and secure the
master switch to prevent
accidental switch-on.
Wear personal protective
equipment, take
appropriate precautions
concerning the handling
of acidic liquids, follow
manufacturer
instructions about the
use of cleaning agents.
Do not eat or smoke
while working.
Replacing emitters,
work on electrical
subsystem
UV system
Electrical shock.
Disconnect from the
power supply and isolate
from customer input
signals as required.
Secure the UV system to
prevent accidental
switch-on.
Electrical work must be
carried out by
professionals.
