Installation and operating instructions: JUDO UV disinfection system JUV 10-110 G/GS
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JUDO Wasseraufbereitung GmbH
© JUDO Wasseraufbereitung GmbH
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D-71351 Winnenden
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Revision level: 03.05.2017
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11.3 Switch off the UVC lamp
The higher the available UV intensity, the more effective the reactor. The longer the lamp has been in use,
the lower the UV radiation strength. Due to preset operating parameters, the UV lamp must be replaced if the
alarm remains active even after the lamp has been cleaned. This normally happens after 9,000 operating
hours, but can be significantly sooner depending on the water quality and operating conditions.
If the desired water quality cannot be achieved with the remaining radiation strength, you may have to
replace the lamp sooner. Especially in the case of water with fluctuating UV transmission it is important to
ensure that the lamp has a sufficient capacity reserve. However, the increased radiation strength will not help
against turbidity. In this case, preliminary filtration must be improved.
Warning
Never switch the UV lamp on outside the reactor.
Prolonged exposure to UV light will cause reddening and/or burning of skin (severe
sunburn).
Wear personal protective equipment (see Chap. 2.3.3. and Chap. 2.4)
Warning
Danger of burns due to hot UVC lamp.
Let the UVC lamp cool off for at least ten minutes before removing it.
Wear personal protective equipment (see Chap. 2.3.3. and Chap. 2.4)
It is not necessary to stop water flow and drain the radiation chamber to replace the UVC
lamp.
Pull the plug from the mains supply.
Remove the protective conductor from the earth connection of the radiation chamber.
Unscrew the cable gland at the protective cover and slide the protective cover along the cable.
Carefully pull the connection plug from the UVC lamp.
Pull the UVC lamp out of the quartz tube.
