System Lock - Miele CVA 7440 Operating And Installation Instructions

Water hardness Calcium
content
°dH mmol/l
mg/l Ca
ppm (mg Ca
1 0.2
2 0.4
3 0.5
4 0.7
5 0.9
6 1.1
7 1.3
8 1.4
9 1.6
10 1.9
11 2.0
12 2.2
13 2.3
14 2.5
15 2.7
16 2.9
17 3.1
18 3.2
19 3.4
20 3.6
21 3.8
22 4.0
23 4.1
24 4.3
25 4.5
26 4.7
27 4.9
28 5.0
29 5.2
Setting
2+
or
2+
/l)
7 1
14 2
21 3
29 4
36 5
43 6
50 7
57 8
64 9
71 10
79 11
86 12
93 13
100 14
107 15
114 16
121 17
129 18
136 19
143 20
150 21
157 22
164 23
171 24
179 25
186 26
193 27
200 28
207 29
Water hardness
°dH mmol/l
30 5.4
31 5.6
32 5.8
33 5.9
34 6.1
35 6.3
36 6.5
37-45 6.6-8.0
46-60 8.2-10.7
61-70 10.9-12.
5
Tip: If your water hardness is >21 °dH
(3.7 mmol/l), we recommend using
bottled drinking water instead
2+
(< 150 mg/l Ca
coffee machine will need to be
descaled less often and there will be
less impact on the environment
because less descaling agent will be
used.
System lock 
You can lock the coffee machine to
prevent it being used without your
knowledge, by children, for example.
When the system lock is activated, the
settings for the Switch off after
deactivated. The coffee machine will
not switch on at the set time and/or
will not respond to movement when
someone approaches it.
Settings
Calcium Setting
content
2+
mg/l Ca or
2+
ppm (mg Ca /l)
214
221
229
236
243
250
257
258–321
322–429
430-500
). This will mean your
timer are
30
31
32
33
34
35
36
37-45
46-60
61-70
47