
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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Содержание ML-2350A-CE
Страница 1: ...AA06OM1173714 18 OPERATION MANUAL YAG LASER WELDER ML CE 2350A 2351A Original instructions...
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Страница 179: ...Maintenance Part...
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