4) Fully Manual – To temporarily bypass the SMARTVALVE
entirely, use the remote meter rate valve assembly.
N
OTE:
T
he remote meter rate valve assembly MUST
first be changed to manual operation. See drawing No. 6.
OPERATIONAL MODE PARAMETERS
A
) FLOW PROPORTIONAL CONTROL
T
he Dosage and Alarm Set Point(s) are the only Operational
parameters for Flow Proportional Control.
1) DOSAGE – The dosage setting allows the user to adjust
a ratio of the gas feed rate with respect to both the
VARIABLE water flow and the NON-VARIABLE water
quality. Settings are 0.0 to 4.0. Factory setting is 1.0.
NOTE:
For a better understanding of DOSAGE, refer
to page 35 and drawing No. 18.
a) To view or change the Dosage setting, press the
MENU button, then press DOSE.
b) Use the UP and DOWN buttons to reach the
preferred value. Press ENTER to accept and auto-
matically return to the Main Operating Screen.
2) ALARM Set Point(s) – If any alarms were activated in
the Configuration Mode, the alarm Set Point Levels
MUST then be set (or changed) in the Operational
Mode. If no alarms have been activated, the ALARM
selection will not appear when the MENU button is
pressed. The alarm set points available for Flow
Proportional Control are VALVE (gas feed rate) or
FLOW (water flow).
a) To set, or change, the active alarm levels, press the
MENU button, then press ALARM. The display will
read the set point number (SP1, SP2 or SP3);
followed by the source (FLOW or VALVE); followed
by the level (LOW or HIGH) in the applicable units.
b) To change the level, press ADJ (adjust). Use the UP
and DOWN buttons to display the preferred value.
Then press ENTER to accept.
c) Press NEXT to proceed to any additional activated
Set Points.
d) Follow the same instructions for all Set Points. Then
press ESC (escape) to return to the main operating
screen.
B) RESIDUAL ONLY CONTROL
The Residual Set Point (SP) and ALARM Set Point(s) are the
only Operational parameters available for Residual Only Control.
1) RES SP (Residual Set Point) is the preferred level of
chlorine residual to be maintained by the system. To set
the value, press MENU, then press SP. The TOP LINE
will read RES SP (residual set point) and the present
value. Use the UP and DOWN buttons to set the desired
level. Press ENTER to accept and automatically return
to the main operating screen.
2) ALARM Set Point(s) – The available Alarm Set Points
for Residual Only control are VALVE (gas feed rate)
and/or RES (residual level). To set or make changes,
follow the steps explained for the Flow Proportional
Control alarm set points.
C) COMPOUND LOOP CONTROL
Compound Loop Control provides the option to monitor either
the water FLOW rate or the residual level (RES) on the TOP
LINE of the main operating screen. To select the preferred
display, simply press SEL (select) followed by RES or FLOW.
T
he additional Operational Mode parameters for Compound
Loop Control are the residual level set point (RES SP) and any
active ALARM set point(s).
1) RES SP (residual set point) – To change the chlorine
residual set point (SP), simply press SEL followed by
MENU. Then press the SP (set point) button. RES SP
a
nd the current value will appear. Use the UP and
DOWN buttons to set the desired level. Press ENTER to
accept and return to the main operating screen.
2) ALARM Set Point(s) – The available Alarm Set Points
for Compound Loop Control are VALVE (gas feed rate),
FLOW (water flow), and RES (residual level). To set or
make changes, follow the same steps explained for the
Flow Proportional Control alarm set points.
IMPORTANT:
The dosage is automatic when the
system is set up for Compound Loop Control.
However, if the signal from the chlorine residual
analyzer should be lost, the SMARTVALVE will auto-
matically convert the system to operate exclusively
in Flow Proportional Control, at which time, the
dosage (DOSE) parameter will be made available for
the operator. Likewise, if the signal from the water
flow meter is lost, the system will automatically be
converted to Residual Only Control and the applicable
parameters will be made available. In either case,
the active Control Scheme (RES or FLOW) will be
displayed on the TOP LINE of the screen, flashing
repeatedly to indicate the loss of signal.
D) FEED FORWARD DECHLORINATION
Feed Forward Dechlorination also provides the option of
monitoring either the water FLOW rate or the residual (RES)
level on the TOP LINE of the main operating screen. To select
the preferred display, simply press SEL (select) followed by
RES or FLOW. The only additional Feed Forward dechlorination
parameter is the multiplier (MULT).
1) MULT (multiplier) – The multiplier setting allows the
user to adjust the gas feed rate with respect to BOTH
the variable water flow and the variable residual level.
The setting is in percentage ranging from 0 to 400 %.
The factory setting is 100%. To adjust the value, press
SEL (select) followed by MULT. Use the UP and DOWN
buttons to set the preferred value. Press ENTER to accept
and automatically return to the main operating screen.
NOTE:
No ALARM set points are made available for the
dechlorination (downstream) SMARTVALVE to prevent
settings which may conflict with the chlorination
(upstream) SMARTVALVE.
IMPORTANT:
As explained for compound loop control, if
the input signal from either the flow meter or the residual
analyzer is lost, the system will automatically be convert-
ed to the alternate control scheme.
16
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