4.3 Keypad
The keypad consists of 4 directional arrow keys and 4 function keys. The arrows are used to move the
adjustment cursor and change settings, while the function keys are used to enter values, and navigate the
various menu screens. The function keys are ENTER, EXIT, NEXT, and PREV (previous). NEXT and
PREV scroll through the various menu choices. ENTER is used to enter a submenu and to enter a value.
EXIT is used to back up one menu level. If you are at the main menu level, EXIT will return you to the
Summary Display.
To change a value in a submenu, the left/right arrow keys move the cursor left and right to each digit or
option that can be changed. The up/down arrows will change numeric values up or down, or scroll
through option choices. Press
ENTER
only when you have finished making
all
of the changes for that
menu screen.
4.4 Access
Code
The WDT series controller is shipped with the access code disabled. If you wish to enable it, see
Section 5.11 for operation. With the access code enabled, any user can view parameter settings, but not
change them. Note that this provides protection only against casual tampering. Use a lock on the cover
latch if you need more protection.
4.5 Startup
Initial Startup
After having mounted the enclosure and wired the unit, the controller is ready to be started.
Plug in the controller and turn on the power switch to supply power to the unit. The display will briefly
show the WDT model number and then revert to the normal summary display. Scroll through the menus
and calibrate the conductivity reading, temperature, and set the control parameters detailed in Section 5,
Operation.
To return to the summary display, press the
EXIT
key until you return to this screen. The controller will
automatically return to this screen after 10 minutes.
Normal Startup
Startup is a simple process once your set points are in memory. Simply check your supply of chemicals,
turn on the controller, calibrate it if necessary and it will start controlling.
4.6 Shut
Down
To shut the WDT controller down, simply turn off the power. Programming remains in memory.
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