AWE SPD2H, Руководство пользователя

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G01
SPD Owner’s Manual
6
The Control Transformer reduces the incoming 220 volts to a safe 24 volts to operate the level
switches, solenoid valves, etc.
The Auxiliary Circuit Board rectifies and regulates 24 volts AC into the 24 volts DC needed for the
Keyence and its inputs and also mounts an opto-isolator for using the alarm output from the conductivity
monitor as an input to the Keyence.
The control panel is shown in Figure 4.
The Pressure Gauges indicate the pump inlet, pump outlet, and product delivery pressures.
The Red LED Warning Lamps illuminate if there is a low feed pressure shutdown, a high pump outlet
pressure shutdown, a high conductivity alarm, or a prefilter pressure drop alarm.
The Conductivity Monitor indicates the electrical conductivity of the feed water or product water.
The Adjustment Cover gives access to controls for calibrating the conductivity probes and setting the
conductivity alarm level.
The Monitor Selector Switch determines whether the meter displays the product conductivity or 0.1
times the feed conductivity.
The Circuit Breaker Power Switch serves as the main on-off control of the system.
The Operation Mode Switch selects whether the system is operating in the normal service and rinse
mode or in disinfection mode. The key lock must be clockwise to enable.
The Keylock prevents unauthorized personnel from using the system in disinfection or accidentally filling
the tank.
The Fill Tank Pushbutton opens the product solenoid valve to fill the disinfection tank with product
water. The key lock must be clockwise to enable.
The Alarm Mute pushbutton silences the audible alarm. In later models it also opens and closes the
Product Dump Solenoid if held down for 3 seconds.
The Product Water Flowmeter indicates the amount of product water the system is producing.
The Prefilter

P Gauge indicates the differential pressure across the sediment prefilter elements.