Parker Pure Water Series, Установка, эксплуатация и обслуживание, Страница: 25 / 175

GENERAL THEORY
Note: Before July, 1st 2015
3.5 OPERATIONAL DESCRIPTION:
Figure 3.2: Water Quality Monitor - Panel View. Figure 3.3: Master Control Center - Panel View.
Figure 3.4: Optional Remote Control Center
–
Panel View. Figure 3.5: Product Solenoid Valve.
PRODUCT WATER MONITORING SYSTEM
The product water (or permeate) flows past a conductivity sensor which provides a signal to the water
quality monitor. Depending on the concentration of total of dissolved solids (TDS) in the permeate, the
following occurs:
If the permeate TDS is detected
AT GREATER than 500 parts per million (ppm), indicating POOR
quality water), a signal is sent from the water quality monitor (Figure 3.2), to the product diversion valve
(Figure 3.5) to reroute the (high salinity) water away from your water storage tank(s) and into the reject
stream.
If the permeate TDS has
LESS than 500 ppm, indicating GOOD (drinking) water, a signal is sent to the
product diversion valve to redirect the good permeate through the product flowmeter and finally into
your water storage tank(s).
MASTER CONTROL CENTER
The Master Control Center (MCC) provides centralized control and monitoring of all important unit
functions and operating parameters (Figure 3.3). This is achieved through the use of a fully integrated
package of control pushbuttons and alarm/status lights, as well as an easy to read Message Display
console.
REMOTE CONTROL CENTER (OPTIONAL)
ppm/NaCl
ppm/NaCl