Amada ML-2350A-CE, Operation Manual, Page: 45 / 235

3.Cooling Water
45
ML-2350A/2351A
Chapter 1 Installation Place
Introduction Part
Operating Part
Maintenance Part
Appendixes
Installation
and
Preparation
Part
Required Quantity of Primary Cooling Water
The following graph shows the required quantity of primary cooling water at each
water temperature of 25ºC, 28ºC, 30ºC and 32ºC when the using ratio is 100%.
As the lamp input power ratio becomes higher, the required quantity of primary
cooling water is increased more.
Water Quality Standard for Primary Cooling Water
To avoid corrosion of the heat exchanger and the water piping, the water quality must
be according to following table:
Item Unit Reference value
Standard item
pH (25°C) - 6.0 to 8.0
Electric conductivity (25°C) mS/m Up to 30
Chloride ion mgCl
-
/L Up to 50
Sulfate ion mgSO
4
2-
/L Up to 30
Acid consumption (pH4.8) mgCaCO
3
/L Up to 50
Total hardness mgCaCO
3
/L Up to 70
Calcium hardness mgCaCO
3
/L Up to 50
Ionized silica mgSiO
2
/L Up to 30
Reference item
Total iron mgFe/L Up to 0.3
Total copper mgCu/L Up to 0.1
Sulfide ion mgS
2-
/L Not to be detected
Ammonium ion mgNH
4
+ /L Up to 0.1
Residual chlorine mgCl/L Up to 0.3
Free carbon dioxide mgCO
2
/L Up to 4.0
20
18
16
14
12
10
8
6
4
2
0
Required quantity of primary cooling water at a water temperature of 25ºC to 32ºC
(Using ratio: 100%)
50 60 70 80 90 100
Lamp input power ratio (%)
25°C
28°C
30°C
32°C
Quantity of primary cooling water (liters/min)
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