Jura Z10 - Water Hardness Determination; First-Time Use Procedures

3 Preparing and using for the first time
11
When you use the machine for the first time, you must set the water
hardness. If you do not know the hardness of your water, you can
find this out first. Use the Aquadur® test strips supplied with the
machine.
T
 Hold the test strip under flowing water for one second. Shake
off the water.
T
 Wait for about minute.
T
 You will then be able to read the degree of water hardness from
the discoloration of the Aquadur® test strip and the description
on the packaging.
Level Display German
Degree (°dH)
Degrees of general
hardness (°dGH)
Parts per
million (ppm)
Indicator Strip number
of ‘reddish’ fields
Not active – – – –
Very soft water < < < . None
Soft water >  >  >  
Hard water > . > . >  
Very hard water >  >  >  
If the machine is operated with a defective power cord, there is a
danger of potentially fatal electric shock.
T
 Never use a machine which is damaged.
T
 Never use a machine which has a defective power cord.
Milk, sparkling mineral water or other liquids can damage the
water tank or the machine.
T
 Only fill the water tank with fresh, cold water.
E The water volume is given as standard in ‘oz’. You can
change this setting to ‘ml’ in programming mode (see
Chapter  ‘Machine settings’).
Precondition:The bean container has been filled.
Determining the water
hardness
First-time use
J WARNING
NOTICE