Jura 657 Original Bedienungsanleitung Seite 15

Determining the water
hardness
Adjusting the water
hardness
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, pro-
ceed as follows:
Precondition: Your IMPRESSA is ready for operation.
T Open the cover of the programming buttons.
O T Press the P button until WATER HARDNESS 16° dH
appears.
O T Press the P button to enter the programme item.
WATER HARDNESS 16° dH
T Press the + button several times to select the water hard-
ness.
WATER HARDNESS 25° dH (example)
O T Press the P button to confirm the setting.
CONFIRMED appears briefly on the display.
WATER HARDNESS 25° dH
0 T Press the exit button to exit programming mode.
Your IMPRESSA is once more ready for operation.
2 Preparing and using for the first time
15