10
Tank Full
The S200 can be operated with 1 or 2 level switches. With 1 level switch, the switch is connected to the tank
full high input. When this switch has been active for the Tank Full Delay (107), the unit will shut down on tank
full. TANK FULL will show on the display. When the tank full condition clears, the display will show TANK FULL
99. The number is the Tank Full Restart (108) time and the unit will restart when this delay times out.
For 2 level switch operation, the upper switch is connected to the tank full high input and the lower switch
is connected to the tank full low input. When both switches are clear, the RO unit will run. The RO unit will
continue to run when the water level rises and the lower switch becomes active. When the upper switch
becomes active, after the Tank Full Delay (107), the RO unit will shut down. TANK FULL will show on the
display. When the tank level drops and the upper level switch clears, the display will show TANK FULL 99 and
the RO unit will remain off. The number is the Tank Full Restart(108) time and the number will blink until the
lower level switch clears. When the lower level switch clears, the number will remain steady and will begin to
count down and the RO will restart when the delay times out.
Tank Full Override
A timed Tank Full Override(109) can be initiated when the RO unit is shut down due to a tank full condition.
Pressing Function, 1 and the Enter key during a tank full condition will enable the tank full override. The RO
will start and TF OVERRIDE 9 will show on the display. The number is the minutes remaining in the override
timer. When the override times out, the unit will return to the tank full shut down condition.
Pretreat Lockout
When the pretreat lockout input becomes active for the time programmed in the Pretreat Delay (112) setpoint,
the unit will shutdown and PRETREAT LOCKOUT will show on the display. When the pretreat lockout input
clears, the unit will restart.
Pressure Sensor Warnings / Alarms
A low/high pressure limit is enabled by programming the limit to a value other than 0. Whether the limits
generates a warning or an alarm is determined by the setting of the warning/shutdown setpoint for each
sensor. Refer to the pressure sensor setpoints section of the manual for further information.
If a low or high pressure warning limit is exceeded, the alarm lamp will light steady and the warning will be
shown on screen 2. The RO unit will continue to operate.
If a low or high pressure shutdown is enabled for any pressure sensor and the limit is exceeded for the sensor
for the delay programmed for the sensor, the unit will shutdown for a pressure alarm condition. The sensor
causing the alarm will be shown on screen 1, the alarm lamp will flash and the audible alarm will sound.
Pressing the Alarm Silence/Reset key twice will reset the alarm.
Low Pressure Switch Alarm
If the low pressure switch input becomes active for the the delay programmed in the Lo PSI Sw Delay (125),
the unit will shutdown for a low pressure switch alarm. LO PRESSURE will show on the display, the alarm
lamp will flash and the audible alarm will sound. The alarm can be reset by pressing the Alarm Silence/Reset
key twice.
High Pressure Switch Alarm
If the permeate TDS / Conductivity reading exceeds the limit programmed the C2 Limit Setpoint for the delay
programmed in the C2 Delay Setpoint, the alarm lamp will light and the HI Cond 2 warning message will show
on the display. This warning will clear when the TDS / Conductivity drops below the Setpoint. If the Shutdown
Delay Setpoint is programmed to 0, the unit will continue to operate. Otherwise, once a high TDS / Cond
Summary of Contents for 200 Series
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