Brita PURITY 450 Quell ST Mode D'emploi page 27

• Water hardness unit and water hardness value
The following units of hardness may be selected for the various types of fi lter system:
Unit of carbonate hardness for fi lter system types STD and STM:
°KH (German unit of hardness)
°EH (English unit of hardness)
°FH (French unit of hardness)
gpg (American unit of hardness)
mg/L (international unit of hardness)
Unit of total hardness for fi lter system type GYP may be
°DH (German unit of hardness)
°EH (English unit of hardness)
°FH (French unit of hardness)
gpg (American unit of hardness)
mg/L (international unit of hardness)
• Monthly limit 2–12
• Reminder function fi lter usage period in months
Irrespective of the remaining capacity display function, you can set a monthly limit of
2–12 months to activate a reminder function for fi lter replacement. If the monthly limit has been
reached up to a month before the export of the set time limit, it is signalled by the date fi eld
fl ashing. Factory set to 12 months.
Example: When set to 9 months, the date fi eld starts to fl ash on the display after 8 months.
Operating the display unit
To operate the display unit, it must be removed from the connecting fi ttings.
Slide the display housing up approx. 10 mm and pull off the display unit.
The display unit is operated using a button on the back of the display unit.
The display unit is supplied in standby mode. To activate the display, press the
button on the back once briefl y and then reset after inputting the parameters.
Parameter input water hardness and fi lter system size
At this level, parameters needed for operation are set manually.
The type and size of fi lter system is selected, the unit of hardness is set, the local carbonate hard-
ness or total hardness of the tap water is entered, and the maximum cartridge service life (monthly
limit) is activated. After this the parameters must be accepted.
Carbonate Hardness
Exhaustion after months
Type/Filter System Size
Date fi eld
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