GE F-801 - Manual (Page 16)

F-801 Internal RO System by GE Osmonics
12552e – 27 Feb 04 1 - 10 General Information
Dialyze/Flush Valve:
The Dialyze/Flush Valve is a 1/4-turn ball valve. When in the dialyze mode, the
valve is in the closed position. When the valve is turned at any point towards
flush, the valve is open. The closer to the flush point, the more the valve is open.
When in flush, the valve bypasses the waste flow tube.
Percent Rejection Display:
The Percent Rejection Display is a 5 LED array that indicates how the RO
membranes are performing. The lights correspond to 99%, 95%, 90%, 85%, and
>70% rejection. The 99% light, when illuminated, indicates a need to evaluate
the RO system performance. RO units do not normally perform in excess of
99%; verify this reading with an independent meter and take corrective action if
indicated. Some RO membranes will achieve this level of performance under
optimum conditions.
Product Water Total Dissolved Solids (TDS) Display:
The Product Water Total Dissolved Solids (TDS) digital display indicates product
water purity in mg/L (ppm). It is temperature compensated to adjust the value of
the display with changing water temperature for better accuracy.
Less Than 0.5 mg/L Check System Lamp:
The Less Than 0.5 mg/L Check System lamp illuminates when the TDS reading is
0.5 mg/L or less. This indicates a need to evaluate the RO system performance.
RO units do not normally have this low product TDS. Verify this reading with an
independent meter and take corrective action if indicated.
NOTE:
RO membranes may achieve this level of performance under optimum conditions
(good feed water).
Alarm Set:
The Alarm Set switch allows the operator to set the TDS levels at which the alarm
will sound. The alarm should be set at twice the initial TDS reading. If the set
point is exceeded, an audible alarm will sound.
NOTE:
Choose the alarm set point that is closest to twice the initial installation TDS
reading.
Alarm Mute:
The Alarm Mute switch will mute the audible alarm for 30 - 45 seconds. A red
indicator lamp is displayed on the switch when the mute switch has been pressed.