ProMinent Bello Zon CDKa 10000, Руководство по эксплуатации, Страница: 33 / 58

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Description and Function
1.4.3 Level switch
The intake lances from the chemicals contain two-stage level monitoring devices . If the level
drops to the first stage, this results in the message “chemicals at low level”; at the second stage
(empty), the system is shut down and alarm is activated.
The water storage tank has level monitoring devices for “full” and “empty”. The lower monitor is
a switch which lets dilution water refill the tank; a float reading position shuts the system down if
there is insufficient dilution water. The upper monitor is a switch protecting against overflow. For
details, see section 1.1.3.10.
1.4.4 Exhaust
A injector is used to extract gases and liquids from the reactor housing. The air in the reactor
housing is renewed regularly (approx. once per hour) by way of a solenoid valve driven by the
control. Any possible leaks are thus removed safely as waste water. For further details, see
section 1.1.3.2.
1.5 Chlorine dioxide system accessories
The following accessories are available (see fig. 1 and table 4):
1.5.1 Bypass pump with wall bracket
The bypass pump (50) (see fig. 1) serves to raise pressure to ca. 2 bar. It is available in cast iron
or in stainless steel, but only for 230 V.
Both bypass pump versions meet the criteria for shock protection and moisture protection set
down by the standards of DIN 40050; the stainless steel version in accordance with IP 54, the
cast iron version in accordance with IP 44.
Table 15: Part numbers for bypass pumps
item part number
bypass pump cast iron for CDKa 150-420 791389
bypass pump stainless steel for CDKa 150-420 791535
bypass pump cast iron for CDKa 750 740829
bypass pump stainless steel for CDKa 750 740830
bypass pump cast iron for CDKa 1500 1000842
bypass pump stainless steel for CDKa 1500 1000843
support bracket for bypass pump 791474
1.5.2 Safety trays 70 l
Safety trays (51a, 51c, see fig. 1) are available with (no illustration) and without leakage warning.
The trays are compatible with plastic containers in accordance with DIN 6131 parts 1 and 2.
The dimensions of the safety trays 70 l:
length = 500 mm, width = 430 mm, height = 380 mm.
Table 16: Part numbers for safety trays
safety tray part number
w/o leakage monitor 70 l 740309 *
with leakage monitor 70 l 740308 **
* one tray
** two trays incl. electronics