Determining The Water Hardness - Jura ENA Micro 90 Instructions For Use Manual

1 Preparing and using for the first time
T Place a receptacle under the dual spout and
the hot-water spout.
T Press the Rotary Switch.
SYSTEM FILLING
with water.
HEATING
READY

Determining 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 running water.
T 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 discoloration of the
Aquadur® test strip and the description on
the packaging.
The water hardness can be adjusted on a
continuous scale between 1 °dH and 30 °dH.
Level Display
German
Degree (°dH)
Not active
Very soft water
Soft water
Hard water
Very hard water
12
, the system fills up
Degrees of
general hardness
(°dGH)
–
<3
> 4 > 4
> 8.4 > 8.4
> 14 > 14
Parts per
million (ppm)
– –
<3 < 53.4
> 71
> 150
> 250
Indicator Strip number
of 'reddish' fields
–
None
1
2
3