HEC-OM-O018-A
Chapter 4 System Set-up
4.1 Pre-check
4-1
Chapter 4 System Set-up
4.1 Pre-check
Check the following items prior to starting up the product.
z
Make sure that the product is installed in horizontal position.
Refer 3.2 Installation
z
Make sure proper connection of the power supply cable, ground, alarm
output, and communication cables.
Refer 3.3 Wiring
z
Make sure that facility water pipings are installed properly.
Refer 3.4 Installation of Facility Water Piping
4.2 Facility Water
4.2.1
Reference of water quality
Table 4-1 Reference of water quality for facility water
Item
Standard value
pH
（
25
o
C
）
6.5 to 8.2
Electric conductivity (25
o
C) (
μ
s/cm)
100 to 800
Chloride ion (mgCl-/L)
200 or less
Sulphate ion (mgSO
4
2-
/L)
200 or less
Acid consumption (pH4.8) (mgCaCO
3
/L)
100 or less
Total hardness (mgCaCO
3
/L)
200 or less
Calcium hardness (mgCaCO
3
/L)
150 or less
Ion silica (mgSiO
2
/L)
50 or less
Iron (mgFe/L)
1.0 or less
Copper (mgCu/L)
0.3 or less
Sulphide ion (mgS
2-
/L) None
detected
Ammonium ion (mgNH
4
+
/L)
1.0 or less
Residual chlorine (mgCl/L)
0.3 or less
Free carbon (mgCO
2
/L)
4.0 or less
Quality item
Filtration (
μ
m)
5 or less