Labconco WaterPro RO 90750 Series, User Manual, Page: 24 / 48

Chapter 4: Using Your WaterPro RO System
20
Original Instructions
Display
Figure 5
1. ON/OFF Switch . This switch turns on the unit and lights the display. When the switch is
in the OFF or ON position the pump will automatically start to flush the RO membrane and
tank for three minutes every 12 hours of inactivity. Before automatic flush occurs the units
must be connected to an electrical supply and inactive for the 12-hour period.
2. Mode . This key selects the mode of operation and displays the water purity measured in
conductivity.
a. Microsiemens (µS) . This is the normal operating mode and displays the water
purity measured in conductivity.
b. Temp . Displays temperature of the water in degrees Centigrade.
c. Time Dispense . Displays amount of time in minutes the system will dispense water
from the dispense valve. Time can be increased or decreased using arrow keys.
3. Tank Full . Light illuminates when the storage is full.
4. Dispense . Pressing this key delivers water from the dispense valve. The key must be held
down to continue dispensing. The delivery will be time controlled if that mode has been
selected, and value entered into the display.