ProMinent
®
Page 33
Before inserting the new lamp, check the protective tube and sensor and if necessary, clean
them (see sections 7.2 and 7.3). The new lamp can then be replaced.
Remove the lamp from its packaging.
Extend the lamp cables on both sides of the lamp slightly so that the connections lie at the
ends of the radiation chamber ready for installation later.
Wipe the lamp using the cleaning cloth provided.
Insert the lamp into the protective tube from the lid end. Allow approximately 5 cm of the
lamp cable to protrude.
At the lid end, push the spacer (glass tube) over the lamp cable until it locks into place on
the lamp. The lamp cable must protrude by approximately 3 cm. If necessary, use tweezers
or small pliers to pull the lamp cable out slightly.
Connect the lamp cable to the connection terminal of the lamp connection cable.
Push the lamp connection cable carefully into the spacer holding onto the spacer for as
long as possible.
Push the lamp cover onto the tube clamp and secure it.
On the motor side, push the spacer (glass tube) over the lamp cable until it locks into place
on the lamp. The lamp cable must protrude by approximately 3 cm. If necessary, use
tweezers or small pliers to pull the lamp cable out slightly.
Connect the lamp cable to the connection terminal of the lamp connection cable.
Push the lamp connection cable carefully into the spacer holding onto the spacer for as
long as possible.
Push the lamp cover onto the tube clamp and secure it.
Pull the safety shield (split tube made of transparent plastic) apart at the split carefully and
push it over the motor supports from above. The safety shield must be flush against the
radiation chamber. The hole in the safety shield is for the protective tube clamp.
Close the outlet valve (this is only necessary if the protective tube and/or the UV sensor
have been cleaned).
Open the stop valve before the radiation chamber slowly.
Fill the radiation chamber until water escapes from the bleed valve. Close the bleed valve
(this is only necessary if the protective tube and/or the UV sensor have been cleaned).
Check that the radiation chamber is sealed properly.
Open the stop valve after the radiation chamber (only necessary if it is a manual stop valve).
Switch on at the mains.
NOTE
Comply with current guidelines and regulations when disposing of the old lamp.
7.2 Cleaning the Lamp Protection Tube
During operation, deposits may form on the protective tube that cannot be removed completely
by the wiper. As these deposits absorb UV radiation, they should be removed at regular
intervals.
NOTE
The protective tube must be cleaned if the sensor signal falls below the warning threshold
and possible causes, e.g. reduced lamp output, the lamp is reaching the end of it useful
life, a coating has formed on the sensor or the UV transmission has deteriorated
considerably, have been ruled out.
For most applications, it is sufficient to clean the protective tube when the lamp is replaced.
Acids such as dilute phosphoric acid, citric acid or dilute nitric acid are particularly suitable
cleaning agents.
Maintenance
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