Pr
o
Minent
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Maintenance
NOTE
•
For radiation chambers which are regularly cleaned by filling with a cleaning solution, it
is recommended to replace the water drain screw as well as the bleed screw by
suitable valves.
•
For larger radiation chambers, filling through the water drain opening with a suitable,
acid-resistant pump is recommended.
If the radiation chamber is filled with a pump, the cleaning solution should be
circulated through the bleed hole. This reduces the cleaning time and improves the
result.
7.2
Replacement of the UV lamps
WARNING
•
The UV lamp is to be replaced by a new one at the latest if
•
the sensor signal approaches the safety threshold and if this fact is not the result of
other causes
such as deposits on the lamp protection tube or significant
deterioration of the UV transmission;
•
the lamp operating hours approach or exceed the maximum service life for the
lamp.
•
Disconnect from mains supply before mounting and connecting the UV lamps!
•
UV C radiation is harmful to eyes and skin.
Only commission the UV lamp when installed!
Properly install the UV disinfection system before commissioning the lamp!
•
Do not extend the already installed lamps’ connecting cables!
•
Do not change the distance between plug and lamp cover!
Otherwise it is not guaranteed that the UV lamp is positioned flush to the closed end of
the lamp protection tube. This is, however, a prerequisite for a safe disinfection.
IMPORTANT
Do not touch the glass of the UV lamp with bare hands!
Fingerprints burn in to the glass and may result in early failures.
Remove fingerprints before the installation using a cloth wetted with alcohol!
NOTE
•
Please observe the following for a disinfection of water having a water temperature
exceeding 25
°
C (as e.g. for bathwater disinfection):
For lamp types equipped with O-rings for guiding in the lamp protection tube, these
guiding rings must be removed before installing the lamp to prevent any overheating of
the lamp.
•
Clean the lamp protection tube each time when replacing a lamp!
왘
To switch off the system, press START/STOP
for 2 seconds
왘
Disconnect the mains plug
왘
Close the shut-off valves upstream and downstream of the radiation chamber
왘
Loosen the knurled nut at the bracket of the lamp protection tube by hand
왘
Pull out the lamp cover such that the connector of the connecting cable can be removed
from the lamp
왘
Remove lamp and place aside
왘
Check whether the O-ring is positioned at the bracket of the lamp protection tube in the
pertinent groove and is not damaged; replace damaged O-ring
왘
Insert the new lamp into the lamp protection tube and let protrude for approx. 100 mm
왘
Connect the connector to the lamp
BA_DS_011_02_07_GB.p65
12.02.2007, 12:03 Uhr
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