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Setting and changing of initial values
25
Incoming water suply hardness
8. Incoming water supply hardness.
Any of the following units of measurement of water hardness can be used
when operating the controller:
°D = German water hardness
mg/l = parts per million CaCO
3
°F = French water hardness
gpg = Grains per gallon
°E = English water hardness
A conversion table for these units of water hardness is given below:
°D
°F
°E
mg/l CaCO
3
gpg
(USA)
mmol/l
°D
1
1,78
1,25
17,85
1,04
0,18
°F
0,56
1
0,70
10,00
0,58
0,10
°E
0,80
1,43
1
14,30
0,83
0,14
mg/l CaCO
3
0,056
0,10
0,07
1
0,058
0,01
gpg (USA)
0,96
1,71
1,2
17,1
1
0,17
mmol/l
5,60
10
7,02
100
5,82
1
IMPORTANT! The incoming water hardness is not entered as part of this
basic program routine. Please see page 5 for details of how to program in
the hardness.
Step nr: 8.1
Hardness [°D]Y/N
Step nr: 8.2
Hardness [°F]Y/N
Step nr: 8.3
Hardness [°E]Y/N
Step nr: 8.4
Hardness mg/lY/N
Step nr: 8.5
Hardness[gpg]Y/N