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<1. Outline>
1-1
IM 12F4A1-01E
1. Outline
In chlorinated tap water and industrial water, the chlorination effect can be determined by
measuring residual chlorine contact.
The RC400G Residual Chlorine Analyzer is for process use and employs rotating
electrode polarography as its measuring principle.
It can be used for continuous measurement of residual chlorine composed of free
available chlorine and combined available chlorine or for free available chlorine only.
The
RC400G Residual Chlorine Analyzer includes “Tap Water type (Model RC400G-1)”
suitable for measurement of tap water or filtered water, “Raw Water type (Model
RC400G-2)” suitable for measurement of raw water and “Treated Water type (Model
RC400G-3)” suitable for measurement of treated water such as sewer water after
secondary treatment or plant waste water.
l
Combined Chlorine Insensitive Version
If raw water contains large quantities of ammonia nitrogen, combined chlorine will form
and remain in the reaction process even if necessary and sufficient chlorine is added at
prechlorination point. In particular, when the pH and temperature of the water are low, combined
chlorine (dichloramine) remains longer and breaks down slowly.
In measurement of free available chlorine in sample water that contains a high concentration of
combined chlorine, measurement errors may occur when the previous model of residual chlorine
analyzer is used. To solve this problem the combined chlorine insensitive version should be used.
It has modified electrode and reagent composition, thereby improving sensitivity to free available
chlorine in the presence of combined chlorine. The electrode configuration, reagent composition
and applied voltage have been changed, otherwise, the measurement principle, equipment,
specifications and performance remain unchanged from the previous model.
In this chapter, the operating principle and structural outline of the RC400G Residual Chlorine
Analyzer is described.
F1.1E.ai
Converter
Detector
Metering pump
Front
Side
Back
Figure 1.1
Appearance of RC400G Residual Chlorine Analyzer (RC400G-1, Tap Water type)
14th Edition : Jul. 15, 2020
Содержание RC400G
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