QUANTUM™ LX EVAPORATOR CONTROL PANEL
OPERATION
090.610-O (MAR 2016)
Page 26
OVERVIEW OF OPERATOR INTERFACES
Web Browser
The web browser interface can be viewed from any desk-
top or laptop computer, which has access to the network
that an Evaporator Controller is attached to. To change
screens, setpoints, etc., you simply use a mouse and the
keyboard to view and change data.
All Evaporator screens that are shown will have several
buttons on the right hand side of the screen. Most screens
will have three buttons, and one setpoint box. The three
buttons are:
[Menu] – Clicking on this button will cause the main
menu to appear on the left side of the screen. Click-
ing a second time will cause the menu to disappear.
[Start Refresh] [Stop Refresh] – This button(s) ap-
pears immediately below the [Menu] button. This is
actually a toggle button, as it changes function from
Start Refresh to Stop Refresh each time it is clicked
on. When the button shows as Start Refresh, a set-
point box will appear below it, with a time value dis-
played. The time value determines how often the
display screen will refresh, or update its values. This
time value is defaulted to 5 seconds, which means
that the display will update all values shown every
5 seconds. Depending on the network connection
speed, this updating may interfere with your ability
to change data setpoints, because the screen will re-
fresh while you are entering the data. To solve this,
simply toggle the Refresh Button. By pressing [Stop
Refresh], screen refreshing will terminate, and the
time setpoint box will reappear. In this state, the par-
ticular screen that you are viewing will never update
the displayed values. Changing to another screen will
show the most recent values on the new screen, and
then will not update again. So in the Stop Refresh
state, screens will only be updated when new screens
are accessed. This feature should not be used when
monitoring data.
One screen that DOES NOT have these buttons is:
Software Maintenance – To leave this screen, click
on [Exit] button. Note: Using the [Exit] button takes
several seconds, and it will force the password level
back to zero.
OPERATOR ACCESS
Operator access to this system is through various screens.
A screen is the physical representation of data on the dis-
play. Each screen has a title area. The title is descriptive of
the screen. The current date and time is shown in this title
area. The day of the week, Sunday (Sun.) through Saturday
(Sat.) is displayed. The month of the year from January (Jan.)
to December (Dec.) is displayed. The day of the month from
1 to 31 and the year from 0001 to 9999 is displayed. The time
displayed is the current time in 24 hours (military) format. The
hours, minutes and seconds are displayed.
Some screens are for informational purposes only, and cannot
be modied. These screens typically show analog values such
as temperature and humidity, which are strictly functions of
an associated sensor, and as such, cannot be modied. Other
screens show setpoint values which can be changed, in order
modify the units operating characteristics. For easier viewing,
related information is separated into boxes. Sometimes selec-
tions are hidden when that the feature is unavailable.
TO CHANGE SETPOINTS
The setpoints dene the operation and limits of each air unit.
These setpoints can be change by operators in the eld. These
setpoints are stored on the compact Flash card.
NOTE: Setpoints are not lost after power is interrupt-
ed. However, we suggest that a list of Setpoints be
recorded and stored safely to facilitate reentry, in case
there is a need to return to the original settings.
1. The data entry elds are identied by a black
box with a white interior. The data is shown in
black text. When on a screen that has adjustable
setpoints, tab to the setpoint box that you wish
to modify (or select it on a web browser). Once
the data eld has been selected, the background
turns blue, and the text turns white.
2. The current value of that setpoint is shown. Use
the keypad to enter the new value. Typing a new
value will completely erase the old value.
3. Press the keypad [ENTER] key to input the new
data in the data entry eld and to move to the
next data entry eld.
4. If the data entered into the setpoint box is valid,
then once you have pressed the keyboard [EN-
TER] key, the [SUBMIT] box in the lower left
hand side of the viewing screen will turn from a
grey background, to a red background. After all
the setpoint changes on this screen have been
entered, press the [SUBMIT] button to save the
setpoint changes to memory.
5. If the value is out of bounds, an error message
box displays the proper range of values. Press
the [OK] button to acknowledge the error mes-
sage. Re-enter a correct value.
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