Reverse Osmosi s
Process Controller
User Manual
Model S – 150
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S – 150 Controller User Manual
MKTF – 429-A 2 09/16
TABLE OF CONTENTS
TDS / Conductivity .............................................................................................................. 17
INTRODUCTION ................................................................................................................. 6
SPECIFICATIONS ............................................................................................................... 6
FRONT PANEL CONTROLS AND INDICATORS ................................................................. 7
INSTALLATION
Physical Installation ............................................................................................................. 8
Terminal Strip, Jumper and Adjustment Locations ............................................................... 8
Power Wiring ....................................................................................................................... 8
Pump and Valve Relay Outputs ........................................................................................... 8
Reverse Osmosis (RO) Pump Wiring ................................................................................... 8
Inlet and Flush Valve Wiring ................................................................................................ 8
TDS / Conductivity Cell Wiring ............................................................................................. 9
Switch Inputs ....................................................................................................................... 9
Pressure Fault Switch .......................................................................................................... 9
Pretreat Switch ................................................................................................................... 10
Tank Full Switch ................................................................................................................. 10
I/O Expander Board ............................................................................................................ 10
Auxiliary Pump .................................................................................................................... 11
Boost Pump ........................................................................................................................ 11
Divert Output ...................................................................................................................... 11
Alarm Output ...................................................................................................................... 11
Tank Low Switch ................................................................................................................. 11
SETPOINTS
Standard Setpoints ............................................................................................................. 15
Displaying or Changing Setpoints ....................................................................................... 16
SYSTEM OPERATION
General Operation .............................................................................................................. 17
Display ................................................................................................................................ 17
Operating Status Messages ................................................................................................ 17
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Operating Hours ................................................................................................................. 18
Temperature ....................................................................................................................... 18
Warning Messages ............................................................................................................. 18
Tank Full Operation ............................................................................................................ 18
Tank Full Restart ................................................................................................................ 18
Tank Full Override .............................................................................................................. 19
Pressure Fault .................................................................................................................... 19
Auto Reset .......................................................................................................................... 19
Alarm Silence ..................................................................................................................... 19
Pretreat ............................................................................................................................... 19
Membrane Flush ................................................................................................................. 20
Flush Mode ......................................................................................................................... 21
High TDS / Conductivity Warning / Alarm ............................................................................ 21
Operating Hours Exceeded ................................................................................................. 21
I/O Expander ...................................................................................................................... 21
Auxiliary Output .................................................................................................................. 21
Tank Low ............................................................................................................................ 22
Boost Pump Output ............................................................................................................ 22
Divert Output ...................................................................................................................... 22
Alarm Output ...................................................................................................................... 22
ADJUSTMENTS
TDS / Conductivity Calibration ............................................................................................ 22
Display Adjustment ............................................................................................................. 22
TROUBLESHOOTING
System Inoperative ............................................................................................................. 23
Display Blank ...................................................................................................................... 23
Inlet Valve Will Not Operate ................................................................................................ 23
RO Pump Will Not Operate ................................................................................................. 23
Unit Not Flushing or Not Flushing Correctly ........................................................................ 23
No or Incorrect TDS / Conductivity Reading ........................................................................ 23
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TDS / CONDUCTIVITY EXPANDER
Table 4 – Flush Mode ......................................................................................................... 21
Installation / Wiring ............................................................................................................. 24
Setpoints ............................................................................................................................. 25
Operation ............................................................................................................................ 25
Calibration .......................................................................................................................... 25
GENERAL WARRANTY ..................................................................................................... 26
FIGURES AND TABLES
Figure 1 – Front Panel Controls and Indicators .................................................................... 7
Figure 2 – Terminal Strip, Jumper Locations ....................................................................... 12
Figure 3 – Sample Wiring ................................................................................................... 13
Figure 4 – Expander Board Terminal Strip, Jumper Locations ............................................ 14
Figure 5 – TDS / Conductivity Cell Installation .................................................................... 14
Figure 6 – TDS / Conductivity Expander ............................................................................. 24
Table 1 – Switch Select Programming ................................................................................. 9
Table 2 – Expander Mode Programming............................................................................. 10
Table 3 – Flush Type .......................................................................................................... 20
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INTRODUCTION
The S – 150 Series controller is a state of the art control system for commercial and industrial reverse
osmosis systems. The S – 150 Series controller combines features that have not previously been
available in one compact unit.
The S – 150 Series controller is a microprocessor controlled system that can monitor pressure and level
switches. A TDS / Conductivity monitor / controller with programmable Setpoints is an i ntegral part o f the
S – 150 Series controller. The S – 150 Series controller displays system status and sensor and switch
input status on an easy to read backlit display. User programmable Setpoints are prov ided that allow fast
and easy adjustment of system parameters.
SPECIFICATIONS
Power: 85 – 265VAC 50/60Hz, 25Wat ts
Environment: –22°F to 140°F, 0 – 95% RH, noncondensing
Enclosure: 8" x 6" x 4" (203mm x 152mm x 102mm) NEMA 4X
Display: 2 line x 20 character, alphanumeric backlit LCD
Front Panel: Overlay with LCD window, alarm lamp, 7 key membrane switch
Switch Inputs, Dry Contact: Pressure fault
Pretreat lockout
Tank full high
Tank full low
Relay Outputs: RO pump relay 120/240VAC, 1HP
Inlet valve relay 120/240VAC, 5A
Flush valve relay 120/240VAC, 5A
Relays supply same output voltage as board power (120 or 240 VAC)
Cell: TDS / Conductivity cell with d igital display, permeate standard range,
0 – 250 PPM or uS.
Other ranges available:
Permeate: 50, 100, 500, 1,000, 2,500, 5,000.
Optional Feed: 50, 100, 500, 1,000, 2,500, 5,000, 10,000.
Wetted parts ABS and 316SS, 3/4" NPT, maximum 300 psi
Optional I/O expander: Auxiliary/divert/boost relay 120/240VAC, 1HP
Divert/alarm relay 120/240VAC, 5A
Tank low switch input, dry contact
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FRONT PANEL CONTROLS AND INDICATORS
Figure 1
DISPLAY: Shows status of system.
ALARM LAMP: Flashes when fault causes the RO system to shut down.
On steady when a Setpoint is exceeded that does not
cause the RO system to shut down.
POWER KEY: Places controller in operating or standby mode.
LEFT ARROW KEY: Scrolls through Setpoints starting with first Setpoint.
RIGHT ARROW KEY: Scrolls through Setpoints starting with last Setpoint.
UP ARROW KEY: Increases value of Setpoint.
DOWN ARROW KEY: Decreases value of Setpoint
ENTER KEY: Conf irms entry of new Setpoint value
ALARM SILENCE/RESET KEY: Push once for alarm silence and twice to reset system
after a shutdown has occurred.
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INSTALLATION
Physical Installation
Mount the S – 150 Series controller in a convenient location on the RO equipment using the four mounting
ears provided with the unit or the optional panel mounting bracket.
NOTE: All terminals on the board are labeled.
Terminal Strip, Jumper and Adjustment Locations
Refer to Figure 2 for the location of all terminal strips and connectors. Figure 2 also shows all jumper and
adjustment locations. Figure 3 shows a sample wiring diagram.
Power Wiring
Refer to Figure 2 and Figure 3 for the terminal strip locations. AC power for the unit is connected to
terminal strip P1. Connect the ground wire of the AC power to the terminal labeled GND. For AC power
with a neutral and hot wire, the ho t wire connects to L1 and the neutral w ire connects to L2. For AC power
with two hot wires, either wire can connect to L1 and L2. On AC power with two hot wi res, the wire jumper
between P6 and P7 should be removed and a fuse (GMA 1/4A) installed in F2.
Pump and Valve Relay Outputs
The S – 150 Series controller supplies relay outputs to control the RO pump and solenoid valves.
NOTE: T he relays out put the same v oltage as the AC power to the board. If the pump and solenoids
operate on different voltages, a contactor will need to be supplied to operate the pump.
RO Pump Wiring
The RO pump connects to the L1 and L2 RO pump ter minals of P1. This output can ope rate 120/240VAC
motors up to 1HP directly. For motors larger than 1HP or 3 phase motors, this output can be used to
operate a contactor.
Inlet and Flush Valve Wiring
The inlet and flush valves must operate at the same volta ge as supplied t o the board. These outputs can
supply 5A maximum and are not designed to operate pump motors directly. If these outputs are to be
used to operate a boost or flush pump, the output should be used to opera te a contactor. The inl et v alve
connects to the L1 and L2 inlet terminals of P1. The flush valve connects to the L1 and L2 flush terminals
of P1.
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TDS / Conductivity Cell Wiring
SWITCH
N.O.
N.C.
VALUE
PRESSURE FAULT
0 1
PRETREAT
0 2
TANK FULL HIGH
0 4
TANK FULL LOW
0 8
TANK LOW
0
16
TOTAL
For accurate TDS / Conductivity readings, the cell should be installed in a tee fitting where a continuous
flow of water passes over the cell and no air can be trapped around the cell. Refer to Figure 5 for example
installation. The cell is connected with five wires to terminal strip P10. Connect each colored wire to the
terminal labeled with the same color.
Switch Inputs
Switch inputs are connected to P9. The connections for these inputs are not polarity sensitive and can
be connected to either terminal. The switch inputs should be dry contact closures only.
NOTE: Applying voltage to these terminals will damage the controller. The switches can be either
normally open or normally closed in any combination. The switch connected to an input that is configured
as normally open must be open for the unit to run. The switch connected to an input that is configured
as normally closed must be closed for the unit to run. The Switch Select Setpoint allows each input to be
configured as normally open or normally closed. The Switch Select Setpoint is defaulted to zero, which
programs all inputs as normally open. This means that all switch inputs must be open for the unit to run.
Table 1 lists the values used to program the Setpoint to configure the inputs.
TABLE 1. Switch Select Programming
Select the type of switch used for each input and put that number in the value column. Add the values
and program the total in the Switch Select Setpoint. For example, if the pressure fault and tank low
inputs were normally closed and all others normally open, the value programmed in the Switch Select
Setpoint would be 17(1 + 16).
Pressure Fault Switch
On systems where a low feed pressure shutdown is required, a feed pressure switch can be connected
to the pressure fault input of P9. If a high pump pressure shutdown is required, a high pressure switch
can be connected to this input. If both low feed pressure and high pump pressure shutdown are
required, both switches can be connected to this input. Both switches must be either normally open or
normally closed to operate properly.
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Pretreat Switch
EXPANDER MODE
RELAY 1
RELAY 2
0
AUXILIARY PUMP
DIVERT
1
AUXILIARY PUMP
ALARM
2
DIVERT
ALARM
3
BOOST
DIVERT
4
BOOST
ALARM
In systems with pretreatment, a pretreat lockout switch can be connected to the pretreat input of P9.
This switch should operate when the pretreatment device is out of service.
NOTE: The output from the pretreatment device must be a dry contact and must not supply voltage.
Tank Full Switch
In systems with a single tank level switch for controlling the RO pump, the level switch connects to the
tank full high input of P9. If dual level switches are used for controlling the RO pump, the upper level
switch connects to the tank full high input of P9 and the lower level switch connects to the tank full low
input of P9.
I/O Expander Board
If the optional I/O expander board is installed, two additional relay outputs and one additional switch
input are provided. Refer to Figure 4 for the location of terminal strips, jumpers and wiring for this
board. AC power for the relays is connected to the L1 and L2 power terminals of P1. Relay 1 is
connected to this power input and will supply the same voltage. This relay is rated for 120/240VAC at
1HP maximum. Relay 1 can be configured to supply a dry contact by connecting a jumper wire
between the L1 and L2 power terminals of P1.
NOTE: If Relay 1 is configured as a dry contact, Relay 2 must be configured as a dry contact also. If
Relay 1 is configured to supply voltage, Relay 2 can be selected to supply voltage, 120/240, 5A
maximum, or as a dry contact output. Jumpers J1–J4 are used to select the Relay 2 output type. To
output voltage, a wire jumper is installed between J1 and J4 and a second wire jumper is installed
between J2 and J3. For a contact closure output, a single wire jumper is installed between J3 and J4.
Relay 2 outputs can be selected to operate as an auxiliary pump output, a divert output or an alarm
output by programming the Expander Mode Setpoint. Table 2 shows the values used to program the
relay outputs.
TAB LE 2. Expander Mode Programming
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Auxiliary Pump
If the Expander Mode Setpoint is programmed to zero or one, Relay 1 operates as an auxiliary pump
output. This output is energized when the tank low input is not active. This output will supply power or
a contact closure determined by the connections L1 and L2 of the terminal strip P1.
Boost Pump
If the Expander Mode Setpoint is programmed to three or four, Relay 1 operates as a boost pump
output. This output is energized when the inlet solenoid output is active. This output will supply power
or a contact closure determined by the connections L1 and L2 of the terminal strip P1.
Divert Output
If the Expander Mode Setpoint is programmed to zero or three, Relay 2 operates as a divert relay and
will operate whenever the unit is in the divert mode. This output will supply voltage or provide a contact
closure based on the configuration of Relay 1 and on the position of jumpers J1–J4. If the Expander
Mode Setpoint is programmed to two, Relay 1 operates as a divert relay and will operate whenever the
unit is in the divert mode. This output will supply power or a contact closure determined by the
connections L1 and L2 of the terminal strip P1.
Alarm Output
If the Expander Mode Setpoint is programmed to one, two or four, Relay 2 operates as an alarm relay.
When an alarm or warning is active, this relay will supply voltage or provide a contact closure based on
the configuration of Relay 1 and the position of jumpers J1–J4.
Tank Low Switch
A tank low switch input can be connected to the tank low input of P2 on the expander board. This input
will provide a tank low warning on the unit and if the expander is programmed to provide an auxiliary
pump output, will provide low tank level protection for this pump.
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Terminal Strip, Jumper Locations
Figure 2
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Sample Wiring
Figure 3
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Expander Board Terminal Strip, Jumper Locations
Figure 5
Figure 4
TDS / Conductivity Cell Installation
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STANDARD SETPOINTS
When this value is met or exceeded, the alarm lamp will light
disable, set to zero.
TDS / Conductivity
Delay
When the limit Setpoint is exceeded, no alarm will be given
until this time has expired.
0 – 999
seconds
Once a TDS / Conductivity alarm is active, if the time in this
disable, set to zero.
The amount of time between the inlet valve opening and the
RO pump start.
0 – 99
seconds
The time a pressure fault must be active before a pressure
fault shutdown occurs.
0 – 99
seconds
When a pressure fault shutdown is active, the system will
be manually reset.
If the audible alarm is silenced after this delay, the alarm will
resound. If set to zero minutes the alarm will remain silenced.
0 – 99
minutes
0 – 99
minute
Selects whether the tank full restart delay is in seconds or
minutes. 0 = seconds, 1 = minutes.
0 – 9
minutes
When a tank low condition clears, the auxiliary pump will
restart after this delay.
0 – 99
minutes
The length of time a membrane flush cycle will last when flush
is active.
0 – 99
minutes
The interval between flush cycles. Only valid with op hour,
elapsed time or off flush types.
If the current operating hours exceed this limit, the operating
hours warning will occur. To disable, set to zero.
0 – 65000
hours
Selects display of water quality in uS or PPM.
recalibrated.
Selects range of TDS / Conductivity monitor 0–50, 1–100, 2–
recalibrated and may require some components be changed.
0 – 5
seconds
SETPOINT
TDS / Conductivity
Limit
TDS / Conductivity
Shutdown
RO Start Delay
Press Fault Delay
Auto Reset
Alarm Silence
TF Restart Delay
TF Restart
TFO Time The amount of time that a tank full override lasts.
Tank Lo Restart
and high TDS / Conductivity will show on the display. To
exceeded, a TDS / Conductivity shutdown will occur. To
attempt to restart after this delay. If set to zero, system must
When a tank full condition clears, the system will restart after
this delay.
DESCRIPTION
RANGE
0 – 999 uS
or ppm
0 – 99
minutes
0 – 99
minutes
seconds/
0 – 1 0
DEFAULT
100
30
0
5
5
60
0
5
5
15
Flush Type Selects the type of flush. Set to zero to disable flush. 0 – 8 0
Flush Time
Flush Interval
Flush Mode Selects if the inlet and RO pump relays operate during flush. 0 – 3 0
Maximum Hours
Current Hours Current number of hours of RO system operation. 0 – 65000 0
Expander Mode Selects how the relays on the I/O expander board operate. 0 – 4 0
Temp Offset Allows adjustment of temperature reading by +–5 degrees. –5 – +5 0
Temp UOM Selects display of temperature in °F or °C. 0 – 1 0
Switch Select Selects if switch inputs are normally open or normally closed. 0 – 32 0
TDS / Conductivity
UOM
TDS / Conductivity
Range
TF Delay Selects delay time for Tank Full
NOTE: If this Setpoint is changed, the unit must be
250, 3–500, 4–1000, 5–2500, 6–5000
NOTE: If this Setpoint is changed, the unit must be
0 – 99 hours 24
0 – 1 0
0 – 6 2
5
0
5
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TO DISPLAY OR CHANGE SETPOINTS
1. Refer to Figure 1 for the location of the keys used to display or change the Setpoints
and Figure 2 for the location of the write protect jumper, J3. For the unit to be able to
accept a change in a Setpoint, the shorting jumper must be in the off position (center
and left pins).
NOTE: Setpoints cannot be changed if the write protect jumper is in the ON positio n.
2. Use the Left and Right arrow keys to display the Setpoints. Each press of an arrow
key will advance the display to the next Setpoint. The Left arrow key starts with the
beginning Setpoint and the Right arrow key starts with the last Setpoint.
3. The Up and Down arrow keys are used to increment or decrement the Setpoint value.
The value will change by one count each time a key is pressed. If the key is pressed
and held for less than one second, the Setpoint value w i l l chang e at a fast rate. When
the key is released, the fast rate will be reset. Pressing both the Up and Down arrow
keys together will reset the Setpoint value to zero.
4. Pressing the Alarm Sil ence / Reset key at any time will cancel the operation and
return the display to the main screen.
5. To accept the new Setpoint value, press the Enter key.
6. The unit will beep twice if the change is accepted. If the write protect jumper is on, the
unit will show WRITE PROTECTED on the display and one long beep will sound.
7. When finished changing Setpoints, the write protect jumper should be placed in the
on position (center and right pins).
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SYSTEM OPERATION
General Operation
The unit has two modes of operation, a standby mode and an operating mode. In the standby mode, the
unit is effectively off. All outputs are turned off and the display shows STANDBY. In the operating mode,
the unit operates automatically. All inputs are monitored and the outputs are controlled accordingly.
Pressing the Power key will toggle the unit from standby to opera te, o r from operate to standby. If power
is removed from the unit, when power is reapplied, the unit will restart in the mode it was in when power
was removed.
Display
The display is a 2 line x 20–character backlit liquid crystal display. System operating status and sensor
readings are shown on this display. Setpoint information is also shown on this display.
Operating Status Messages
The operating status of the unit is shown on the top line of the display. The following list describes the
items shown for the operating status.
STANDBY: The unit is in the standby mode.
DELAY 99: The unit is in the RO start delay. The number is the seconds re maining before the
RO pump starts.
OPERATING: The RO unit is operating.
TANK FULL: The unit is shut down due to a tank full condition.
TANK FULL 99: The unit is shut down due to a tank full condition. If the number is blinking, the tank
full high switch has cleared, but the tank full low switch is still active. If the number
is on steady, both tank level switches have cleared and the delay i s counting down.
PRETREAT: The unit is shut down due to a pretreat lockout condition.
PRESS FAULT: The unit is shut down due to a pressure fault condition.
MEMB FLUSH 99: Membrane flush is active. The number is the minutes remaining in the flush
cycle.
TDS / Conductivity
The TDS / Conductivity is shown on the top line after the unit operating status. When the unit is offline
because of a shutdown condition, the reading is replaced with ‘––––’ If the reading is over range, the
reading is shown as ‘^^^^’.
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Operating Hours
The current operating hours are shown on the bottom line.
Temperature
The current water temperature is shown on the bottom line after the operating hours. When the unit is
offline because of a shutdown condition, the reading is replaced with ‘–––’.
Warning Messages
Warning messages are also shown on the second line. If any warnings are active, the active warnings
will alternate with the normal displays for the bottom line. The following lists the warning messages.
HI TDS / Conductivity: The TDS / Conductivity reading has exceeded the programmed limit.
TANK LOW: The tank low input is active.
TANK LOW 99: The tank low input has cleared, but the tank low restart delay is active.
The number reflects the minutes left in the delay.
OP HOURS EXCEEDED: The current operating hours have exceeded the programmed limit.
Tank Full Operation
The unit 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 five seconds, 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 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 five second delay, 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 time and the number
will blink until the lower level switch clears. When the lower level switch clears, the number will remain
steady and the RO will restart when the delay times out.
Tank Full Restart
The tank full restart is the delay before the RO unit starts when a tank full condition clears. This delay
can be in minutes or in seconds. The TF Restart Setpoint selects seconds or minutes.
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Tank Full Override
A timed tank full override can be initiated when the RO unit is shut down due to a tank full condition.
Pressing the Alarm Silence/Reset key for three seconds 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
shutdown condition.
Pressure Fault
If the pressure fault input becomes active and stays active for the delay programmed in the PF Delay
Setpoint, the unit will shut down for a pressure fault. The display will show PRESS FAULT, the alarm
lamp will flash and the audible alarm will sound. The pressure fault can be cleared by pressing the
Alarm Silence/Reset key twice.
Auto Reset
If a pressure fault shutdown occurs and the Auto Reset Setpoint is programmed to zero, the unit will
remain shut down until manually reset. If the Auto Reset Setpoint is programmed to a value greater
than zero, the unit will automatically clear the pressure fault and attempt to restart after this delay times
out.
Alarm Silence
When a shutdown occurs that causes the audible alarm to sound, the alarm can be silenced by
pressing the Alarm Silence/Reset key once. The alarm will remain silenced if the Alarm Silence
Setpoint is programmed to zero. If the Alarm Silence Setpoint is programmed to a value greater than
zero, the alarm will resound after this delay times out. Pressing the Alarm Silence/Reset key will silence
the alarm and reset this delay.
Pretreat
If the pretreat input becomes active and stays active for two seconds, the unit will shut down in a
pretreat lockout condition. PRETREAT will show on the display and the unit will remain shut down as
long as the pretreat input is active.
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Membrane Flush
FLUSH TYPE
DESCRIPTION
0
NO FLUSH
1
TANK FULL
2
OPERATING HOURS
3
OPERATING HOURS AND TANK FULL
4
ELAPSED TIME
5
ELAPSED TIME AND TANK FULL
6
OFF HOURS
7
OFF HOURS AND TANK FULL
8
RO START/STOP
If the Flush Type Setpoint is programmed to zero, flush is disabled. If membrane flush is desired, several
types of flush are available. When the unit enters a flush cycle, the flush relay will activate. The flush
cycle will last for the time programmed in the Flush Time Setpoint. Table 3 shows the value that must be
programmed in the Flush Type Setpoint for each type of flush.
TABLE 3. Flush Type
TANK FULL: The RO unit will flush each time a tank full condition occurs.
OPERATING HOURS: A flush will occur when the RO pump has operated for the number of
hours programmed in the Flush Interval Setpoint.
ELAPSED TIME: A flush will occur after the number of hours programmed in the Flush
Interval Setpoint has passed.
OFF HOURS: A flush will occur when the RO has been shut down due to a tank full
condition for the number of hours programmed in the Flush Interval
Setpoint.
RO START/STOP: A flush will occur each time the RO starts or stops.
The tank full flush can be combined with any of the three interval flush
types. A manual flush can be initiated by pressing the Alarm
Silence/Reset key for three seconds.
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Flush Mode
FLUSH MODE
RO PUMP
INLET VALVE
0
OFF
CLOSED
1
OFF
OPEN
2
ON
CLOSED
3
ON
OPEN
The Flush Mode Setpoint can be used to control the operation of the inlet valve and RO pump during
flush. Each can be independently programmed to operate during flush. Table 4 shows the values to
program into the Flush Mode Setpoint to control the operation of the inlet and RO outputs during flush.
TABLE 4. Flush Mode
High TDS / Conductivity Warning / Alarm
If the TDS / Conductivity reading exceeds the limit programmed the TDS / Conductivity Limit Setpoint
for the delay programmed in the TDS / Conductivity Delay Setpoint, the alarm lamp will light and the HI
TDS / Conductivity warning message will show on the display. This warning will clear when the TDS /
Conductivity drops below the Setpoint. If the TDS / Conductivity Shutdown Setpoint is programmed to
zero, the unit will continue to operate. Otherwise, once a high TDS / Conductivity warning occurs, after
the time programmed in this Setpoint, the RO unit will shut down and the alarm will sound. The alarm
can be cleared by pressing the Alarm Silence/Reset key twice.
NOTE: The auto reset function is not active for this shut down.
Operating Hours Exceeded
If the current hours exceed the limit programmed in the Maximum Hours Setpoint, the alarm lamp will
light and the OP HOURS EXCEEDED warning message will be shown. This warning can be cleared by
programming the current hours to zero or by increasing the maximum hours limit.
I/O Expander
The I/O Expander board adds 2 relays and 1 switch input. The operation and programming of the 2
relays is described in the installation section.
Auxiliary Output
Relay 1 can be used to control a repressurization pump when Relay 1 of the expander board is
configured to operate an aux relay. In this mode, this relay will be energized as long as the tank low
input is not active. When energized, the relay supplies power to the repressurization pump.
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Tank Low
When the tank low input has been active for five seconds, the auxiliary output will turn off. The alarm
lamp will light and the TANK LOW warning message will show on the display. When the tank low
condition clears, the TANK LOW 99 warning message is displayed. The number is the delay in minutes
before the auxiliary relay will energ ize.
For boost pump operation, when the tank low input has been active for five seconds, the boost pump
output will turn off, the RO unit will shut down, the alarm lamp will flash and the audible alarm will
sound. TANK LOW shutdown message will show on the display. When the tank low condition clears,
the TANK LOW 99 shutdown message is displayed. The number is the delay before the RO unit will
restart. The shutdown can be manually reset by pressing the Alarm Silence/Reset button twice.
Boost Pump Output
Relay 1 can be used to control a boost pump when the expander board is configured to operate Relay
1 as a boost pump relay. This relay will operate the same as the inlet solenoid relay. This option is
used to directly operate a boost pump up to 1HP.
Divert Output
When Relay 1 or Relay 2 has been programmed to operate as a divert relay, the relay will energize
when the TDS / Conductivity exceeds the TDS / Conductivity Limit Setpoint. This will occur as soon as
the reading exceeds the limit, there is no delay. When the reading drops below the limit and stays
below the limit continuously for five seconds, the divert relay will turn off.
Alarm Output
When Relay 2 has been programmed to operate as an alarm relay, the relay will energize whenever a
warning or alarm condition occurs. The relay will remain energized as long as the warning / alarm
condition is active.
ADJUSTMENTS
TDS / Conductivity Calibration
Refer to Figure 2 for adjustment location. To calibrate the TDS / Conductivity, place the cell in a known
standard solution. Adjust the span adjustment for the correct reading. If the cell is installed, the unit can
be calibrated by taking a sample of the permeate water and testing it with a known, good meter. Adjust
the span control until the reading matches the meter.
NOTE: If the TDS / Conductivity range is changed, the unit must be recalibrated and some components
may need to be changed.
Display Adjustment
The display contrast can be adjusted for best viewing by adjusting control R3. This control is located
toward the upper right corner of the board, just to the left of the cell connector.
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TROUBLESHOOTING
CAUTION: Hazardous voltages are present when power is applied to the unit. Care should be taken
when troubleshooting any of the input power or output circuits. When disconnecting or connecting any
board or accessory, be sure power is turned off at the disconnect.
Verify the programming of all Setpoints, Check the display and check the status of all lights and
indicators. The more information available, the easier it will be to determine the source of the problem.
System Inoperative
Is the yellow CPU active LED blinking? If no, is the green power LED, DS1 Lit? If no, is the fuse OK? If
no, replace the fuse. If yes, with a voltmeter, verify power is applied to the power terminals L1 and L2. If
power is applied to the power terminals and the above checks are OK, the board is probably defective
and should be replaced. If no power is applied to the board, check the power wiring to the system.
Display Blank
Is the green power LED, DS1 lit? If no, refer to the system inoperative section. If yes, is the CPU active
LED, DS9 blinking? If no, replace the board. If yes, adjust the display contrast adjustment, R3. Is the
display still blank? If yes, replace the board.
Inlet Valve Will Not Operate
Is the system in standby? If no, are any shutdown conditions active? If no, is the inlet LED, DS8 lit? If
no, replace the board. If yes, with a voltmeter, verify if there is power on the inlet terminals. Is there
power? If no, replace the board. If yes, check the valve and wiring.
RO Pump Will Not Operate
Is the system in standby? If no, are any shutdown conditions active? If no, is the RO LED, DS6 lit?
If no, replace the board. If yes, with a voltmeter, verify if there is power on the RO pump terminals. Is
there power? If no, replace the board. If yes, check the pump and wiring.
Unit Not Flushing or Not Flushing Correctly
Verify that flush is enabled and what type of flush is selected. Is flush enabled? If no, enable flush. If
yes, press the Alarm Silence /Reset key for 3 seconds. Does the unit show flush on the display? If no,
replace the board. If yes, is the flush LED, DS10 lit. If no, replace the board. If yes, with a voltmeter,
verify if there is power on the flush terminals. Is there power? If no, replace the board. If yes, check the
valve and wiring.
No or Incorrect TDS / Conductivity Reading
Is sensor wired correctly? If no, correct wiring. If yes, is sensor installed as described in the installation
section? If no, install correctly. If yes, verify correct TDS / Conductivity range. Range correct? If no,
correct range. If yes, calibrate unit. Does unit calibrate OK? If no, disconnect green and white wires of
sensor. Does reading show 0? If no, replace board. If yes, reconnect wires and remove sensor from
piping and dry. Does reading show 0? If no, replace cell. If yes, short pins of cell together. Does
reading show ‘^^^’? If no, replace board.
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TDS / CONDUCTIVITY EXPANDER
Figure 6
Installation / Wiring
The TDS / Conductivity expander board allows a 2
nd
TDS / Conductivity to be monitored and displayed
by the S – 150 Series controller. The expander board is mounted on the main board to the left of the
connector for the first cell. Figure 6 shows the wiring and adjustment information for the expander.
TDS / Conductivity Expander
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Setpoints
SETPOINT
DESCRIPTION
RANGE
DEFAULT
C2 Range
Selects range of TDS / Conductivity
components may need to be changed.
0 – 7
2
C2 Limit
When this value is met or exceeded, the
disable, set to zero.
0 – 9999 uS or
0
% Rejection
If the second TDS / Conductivity is used to
rejection to be displayed.
0 – 1
0
When the expander is installed, 3 additional Setpoints are provided to allow features of the expander to
be changed. Refer to the Displaying or Changing Setpoints section of the manual on page 14 for
information on changing the Setpoints. The additional Setpoints are listed below.
monitor 0 – 50, 1 – 100, 2 – 250, 3 – 500,
4 – 1,000, 5 – 2,500, 6 – 5,000, 7 – 10,000
NOTE: If this Setpoint is changed, the unit
must be recalibrated and range
alarm lamp will light and high TDS /
Conductivity will show on the display. To
monitor feedwater, programming this
Setpoint to one allows the percentage of
Operation
When the TDS / Conductivity expander is installed, the reading will be shown on line two and will
alternate every three to four seconds with the hours and temperature. If the percentage of rejection
display is enabled, it will be shown on line two with the second TDS / Conductivity reading.
If the C2 limit is enabled, and the second TDS / Conductivity reading exceeds the limit programmed the
C2 Limit Setpoint for the delay programmed in the TDS / Conductivity Delay Setpoint, the alarm lamp
will light and the HI TDS / Conductivity 2 warning message will show on the display. This warning will
clear when the second TDS / Conductivity drops below the Setpoint.
Calibration
Refer to Figure 6 for adjustment location. To calibrate the second TDS / Conductivity, place the cell in a
known standard solution. Adjust the span adjustment for the correct reading. If the cell is installed, the
unit can be calibrated by taking a sample of the water and testing it with a known, good meter. Adjust
the span control until the reading matches the meter.
ppm
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General Warrant y
One–Year Limited Warranty
The manufacturer ( hereinafter “manufacturer”) pr ovides a twelve (12) month limited war ranty on the materials,
workmanship, and performance of its own manufactured components, when installed and operated in accordance
with the manufacturer’s recommended d esign and operating specifications. This warranty only applies to the
original purchaser (the “Customer”) of each component (each “Product”) and commences from the date of
purchase as stated on manufacturer’s original invoice.
Exclusions from Warranty
This Warranty does not extend to equipment or Products manufactured by others and distributed by manufacturer,
nor to equipment or Products manufactur ed b y others i nto w hich a manufacturer produc t h as be en inc orp or at ed.
If allowable, manufacturer hereby assigns, without warranty, to the Customer its interest, if any, under any
warranty made by the manufacturer of such equipment or Product.
This Warranty shal l be void if th e Product is su bject to any ac cident, damage, damage to the s ealing surf aces,
faulty installation, problems with sealing caused by foreign debris or mishandling, misapplication, chemical
exposure, or other abuse or m is use; an y modific ations , addit ions or alt erati ons no t ap proved b y manuf acturer in
writing; any use of the Product after discovery of a def ect without manufacturer’s prior written consent; or the
Customer’s or user ’s r efusal to per m it m anufac turer o r its author ized r epr esentat ive to examine the Product in a
timely manner in order to determine the nature and extent of a claimed defect. Normal wear of replaceable
components, including without limitation o–ring seals, are specifically excluded from this Warranty.
DISCLAIMERS
No agent, employee, or representative of the m anufacturer has any authorit y to bind the manufacturer to an y
affirmation, representation, or warranty concerning the goods sold under this contract, and unless an affirmation,
representation or warranty made by an agent, employee, or representative is specifically included within this
Warranty, it will not be enforceable by the Customer.
REMEDY
The manufacturer’s sole obligation under this warr anty, and the Custom er’s sole remedy for any breach of this
Warranty, is limited to, a nd shall be full y dischar ged b y, the m anufac turer’s repair of an y defective Pr oduct or, at
the manufacturer’s s o le opt ion, i ts rep lac ement of such Pro duct w ith a n ide ntica l o r s ubstantially similar Pro du c t.
The manufacturer’s repair or replacem ent of such Product s hall take place at the manufactur er’s plant and the
Customer shall be so lel y res ponsible f or a ll char ges in curr ed in s hippi ng the Prod uct to t he m anuf acturer’s pl ant
and for any and all insurance in connection therewith. Any replacement Product will be warranted against defects
in material and workmanship for the unexpired portion of the warranty period applicable to the Product as to which
such repair and replacement has been made.
WARRANTY EVALUATION
THE MANUFACTURER’S OBLIGATION UNDER THIS WARRANTY IS LIMITED TO THE REPAIR OR
REPLACEMENT (AT THE MANUF ACTURER’S SOLE DISCRET ION) OF AN Y PRODUCT, OR C OMPONENT
THEREOF, PROVED TO BE DEFECTIVE IN MATERIAL OR WORKMANSHIP WITHIN THE COVERED
WARRANTY PERIOD.
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The Customer, at the Customer’s risk and expense, shall be responsible for returning such Product or component,
only after obtaining a Re turn Goods Authorization (RGA) num ber from the manufacturer, arranging f or freight
prepaid, and in conformance with any special packaging and shipping instructions set forth on the operation
documentation or RGA instructions, or as otherwise reasonably required, to the manufacturer’s address set forth
below, together with (1) RGA number issued by the manufacturer at Customer’s reques t; (2) proof of pur chase
and, if necessary, proof of installation date; (3) a Return Good Authorization Form; (4) a description of the
suspected defects; (5) the serial number of the manufacturer Product alleged to be defective; and (6) a description
of the type of water and pretreatm ent equipm ent which has been utilize d in connec tion with the Product, if any.
The manufacturer s hall, in the manufacturer’s reas onable discretion, be the sol e judge of whether a returne d
Product or component is defective in material or workmanship. Required or replaced Products or com ponents
shall be returned s urface freight. In genuine em ergenc y situations, the m anufacturer will (at the m anufacturer’s
sole discretion) for ward replac ement par ts to Custom er with out waitin g for aut horized r eturn of t he questio nable
part(s). In such cases, Customer will issue a purchase order or other payment guarantee prior to shipment. If the
returned part is found to ha ve be en misused or abused, or the def ec ti ve par t is n ot rec ei ved by the manufacturer
within thirty (30) days; the Customer will be invoiced for the replacement part(s) provided. This Warranty does not
cover or include labor and/or travel to the Customer’s premise or location or any other location. Charges of $1000
per day plus associated travel expenses will be incurred by the Customer in providing the Warranty Service at any
location other tha n the m anufacturer’s m ain headquar ters; that is if the m anufacturer d eems that t he Produ ct is
not covered by sai d Warranty. The manufactur er reserves the right to precond ition such travel to Custom er’s
premises upon prepayment of the manufacturer’s anticipated costs of attending such premises.
LIMITATIONS OF WARRANTY
OTHER THAN AS SPECIFICALLY SET FORTH IN THIS WARRANTY, THE MANUFACTURER MAKES NO
WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCT, AND THE MANUFACTURER
DISCLAIMS AN Y WARRANTY OF MERCH ANTABILITY OR OF FIT NESS FOR A PARTICULAR PURPOSE.
THE MANUFACTURER’S LIABILITY UNDER THIS WARRANTY SHALL IN NO EVENT EXCEED THE
PURCHASE PRICE FOR THE PRODUCTS. THE MANUFACTURER SHALL NOT BE LIABLE FOR ANY
CONSEQUENTIAL OR INCIDENTAL DAMAGES, IN CLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS,
LOSS OF USE, COST OF REMOVING OR INSTALLING THE PRODUCT OR COMPONENTS, DOWNTIME, OR
THE CLAIMS OF THIRD PARTIES, AND INJURIES OR DAMAGES TO PERSONS OR PROPERTY.
INSTALLATION AND USE
The specifications and operational requirem ents for a Product are r eadily available from the manufacturer and
may be requested in writing via f ax or email. Fai lure to request th is information shall not void or invalidate this
Warranty or the limitations contai ned herein.
EXCLUSIVE WARRANTY
It is the intent of the parties to this contract to fully and completely state the rights and obligations of the parties in
this Warranty and the manufacturer has specifically set forth in this Warranty the extent and nature of the warranty
on the Product(s) to be sold. There are no warranties which extend beyond the description in this Warranty.
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