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C
4
HAPTER
L
A
IMIT
NALYSER
C
4
HAPTER
device
limit value indicators
total hardness
HG
order number
carbonate hardness
HC
order number
O
S
PERATING THE
YSTEM
O
L
PERATION OF
4.1 Summary of limit analyser of Sycon 2500 series
Analysers of Sycon 2500 series in model H are designed to monitor a certain
limit-value-concentration of total or carbonate hardness in water through the use
of colormetry analysis.
In a colormetry process the ionic and other concentration in water is monitored
by allowing an indicator to react against the target ions and others, and
monitoring the transmissivity of the resultant coloration for light of a specific
wavelength. An example procedure is to check for hardness leakage via the
coloration of a hardness indicator.
Basically, the system has been developed as part of a water treatment system
(e.g softeners for boiler water).
Sycon 2500 limit analyser automatically and regularly implements the process of
sampling the water, injecting the indicator, stirring and evaluating the result. The
analyser automatically determines a hardness leakage and gives an alarm
through a potential free relay output. This contact can be used to trigger, for
example, a regeneration of the softener.
The time-critical, and inaccurate manual analysis or the analysis of indirect
methods will be replaced by an accurate and above all, reliable method of
measurement.
With external alarm output, fault-diagnostic function as well as the suspension
(by remote signal input) of monitoring while the water softener is in regeneration
or the water feed is stopped Sycon 2500 limit analyser provides a useful
functionality.
Because of the simple LED display, the device can be used in all language
areas.
The limit for water quality to be monitored is defined by the indicator used. For
the analytical instrument Sycon 2500 the following limit indicators are offered:
SYCON 2500
30-010120
option enclosure 33-099005
0,05 °dH
0,1 °dH
0,2 °dH
32-
32-
32-
084125
084135
084145
1 °dH
1,5 °dH
2 °dH
32-
32-
32-
082125
082135
082145
A
IMIT
NALYSER
0,3 °dH
0,5 °dH
1 °dH
32-
32-
32-
084155
084165
084175
3 °dH
32-
082155
2 °dH
3 °dH
5 °dH
32-
32-
32-
084185
084195
084205
P
27
AGE
10 °dH
32-
084215
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