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2 Preparing and using your IMPRESSA for the first time
The water hardness can be adjusted on a continuous scale between
1° dH and 30° dH. This can also be deactivated, which means that
the IMPRESSA will not let you know when it has to be descaled.
E However, if you are using the CLARIS filter cartridge and have
activated it, you will not be able to adjust the water hard-
ness.
You can find out what the water hardness is by using the Aquadur®
test strip supplied as standard.
T Hold the test strip briefly (for one second) under flowing
water. Shake off the water.
T Wait for about one minute.
T You will then be able to read the degree of water hardness
from the discolouration of the Aquadur® test strip and the
description on the packaging.
You can now adjust the water hardness.
Example: To change the water hardness from
16°dH to 25°dH,
proceed as follows:
Precondition:
COFFEE READY is displayed.
T Open the cover of the Rotary Switch.
k T Keep the Rotary Switch pressed until
MAINTENANCE
appears.
g T Turn the rotary switch until
HARDNESS 16°dH is
displayed.
k T Press the Rotary Switch to enter the programme item.
16°dH
g T Turn the Rotary Switch until 25°dH is displayed.
k T Press the Rotary Switch to confirm the setting.
CONFIRMED w appears briefly on the display.
HARDNESS 25°dH
g T Turn the Rotary Switch until EXIT is displayed.
k T Press the Rotary Switch to exit programming mode.
COFFEE READY is shown on the display.
