19
2 Preparing and using your IMPRESSA for the first time
The harder the water is, the more frequently the IMPRESSA needs to
be descaled. It is therefore important to adjust the water hardness.
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.
Determining and
adjusting the degree of
water hardness
Summary of Contents for IMPRESSA XS90
Page 5: ...5 Important Safeguards...
