Purite SELECT FUSION 160, Руководство оператора

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OPERATING MANUAL FOR SELECT FUSION
Iss: F 17.03.08
5.1 CONTROL PHILOSOPHY
The operation of the
SELECT FUSION
is described as follows
.
5.1.1 The feedwater enters the unit via an external 5-micron carbon
impregnated prefilter. The prefilter removes up to 95 % of all
particles>5micron and dechlorinates to <0.1 ppm free Chlorine.
5.1.2 The filtered and dechlorinated water now enters the unit via a
150micron stainless steel mesh type screen filter to protect the
following inlet solenoid from any large particulates.
5.1.3 From the inlet valve the water pressure is boosted by an internal
boost pump to 60 psi, the optimum operating pressure for the
Reverse Osmosis (RO) membrane.
5.1.4 Water now enters the (RO) module. The water that passes through
the membrane is termed, Permeate. The water containing the
rejected salts, up to 98% of the original incoming salts is directed to
drain at a rate of up to 60 l/hr.
5.1.5 After leaving the (RO) membrane the Permeate passes through the
Puripac PP8 cartridge containing mixed bed ion-exchange resin and
activated carbon.
5.1.6 The quality of the treated water is monitored and displayed as
“Pre
Qual”
and has a quality of between 1-10 M Ω -cm. The water now fills
the integral tank, the level being controlled by the two upper level
sensors, which are linked to the operation of the inlet solenoid.
5.1.7 When the level of water in the treated water reaches the lower of the
2 upper level sensors the internal recirculation pump will start. Water
is drawn by the pump and passes it firstly through the NCP media
pack containing semiconductor, mixed bed nuclear grade resin and
activated carbon. The quality, flowrate, TOC and Temperature of the
final purified water being monitored and displayed on the user
interface.
5.1.8 The recirculation pump is protected from running dry by a low level
sensor located in the bottom of the tank.
5.1.9 From the NCP media pack the highly polished water at a quality of
between 15-18.2 M Ω -cm, displayed as
“Out Qual,
”flows through the
automatic 3-way dispense valve.
5.1.10 Water can be dispensed via this valve, 3 options of dispense are
available, Hold, Latched and Volume.
5.1.11 To provide sterile water at point of use the valve is fitted with a 0.2-
micron absolute rated capsule filter with protective filling bell.
5.1.12 Water from the integral tank can be dispensed via the white bib tap.
5.1.13 To maintain quality the water is recirculated around this loop at a rate
of up to 1 l/min.
5.1.14 The Graphical screen displays all alarms, quality, and status readings
along with a mimic of the process.
Refer to the process flow schematics in the Appendix.