12
The SMARTVALVE may be set to operate either automatically
(
AUTO
) or manually (
MANL
), as needed. While in the Operational
Mode, the TOP LINE of the main screen displays the water
flow rate and also indicates if the valve is set for
AUTO
or
MANL
operation.To change the means of operation, press the
MENU
button. Only the non-active choice will appear on the
screen. Press
MANL
or
AUTO
accordingly. The selection will be
activated and appear on the top line (far right) of the display
screen.
A) MANUAL OPERATION
The SMARTVALVE provides four separate ways to manually
adjust the gas feed rate which include:
1)
Fully Electric
– In the event of loss of the analog input
signal, you can use the keypad and digital display. To
adjust the feed rate, place the SMARTVALVE into manual
(
MANL
) operation as previously explained. Then press
the
VALVE
button. Use the
OPEN
and
CLOSE
buttons
to change the feed rate while using the digital display or
metering tube as a guide.
2)
Electric Manual
– If the remote meter assembly is
temporarily out of service, use the thumbwheel and
digital display. To adjust the feed rate, place the valve
into
MANL
(manual) operation. Then turn the thumbwheel
while using the digital display as a guide.
IMPORTANT:
To avoid gear damage and possibly upset the electrical
zero setting, it is ESSENTIAL to place the valve into
MANL
operation PRIOR to turning the thumbwheel.
Also, be sure to bypass the remote meter assembly by
connecting the vacuum tubing from the regulator directly
to the SMARTVALVE inlet fitting.
3)
Manual
– In the event of a power loss, use the thumb-
wheel and remote meter assembly. To adjust the feed
rate, simply turn the thumbwheel while using the remote
meter ball float as a guide.
4)
Fully Manual
– If it is necessary to temporarily bypass
the SMARTVALVE entirely, use the remote meter rate
valve assembly. See drawing No. 2 for proper installation.
B) AUTOMATIC OPERATION
The 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 27 and Drawing No. 13.
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 automatically
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.
7.0 OPERATIONAL MODE