7
INSTRUCTIONS
J. Move the cursor to the field for the overtemperature shutdown setting. Press Up or Down to
set the desired temperature. The temperature that you set here will be that which, if sensed by
the probe, triggers automatic shutdown of all connected ballasts in Zone A in order to quickly
reduce the temperature of the grow environment and prevent crop damage. In this event, the
PX1 will not return power to the ballasts until the probe reports at least a 3-degree drop in room
temperature.
K. Move the cursor to the field for enabling hot start delay time. The time delay will only function if
the PX1 controller and ballasts lose power. This is the number of minutes the PX1 will delay the
return of power to the ballasts after a brief power interruption. This feature prevents a potentially
damaging “hot restrike,” which is the reignition of HID lamps while they are still hot from prior
operation. The settings available (in minutes) are 0, 5, 10, 15, 20, and 30 (0 = off). If power is
restored before the saved delay time has passed the PX1 will wait for the delay time to finish
counting down before returning power to the ballasts.
L. Press Enter to save all settings on this page.
When saving settings on this page, a display
reading “Settings Saved” appears for 750 ms
(three quarters of a second) announcing that
the data has been saved:
STEP 4: Set desired settings for Zone B
A. From the Zone A settings page, press Page
once to get to the Zone B settings page. The
cursor will be blinking under the ballast type
field. Press Up or Down to select the wattage
setting that matches the wattage of the ballasts you will be running in this zone (available settings
are 1000W, 750W, 600W, and 400W). NOTE: If you wish, you can create a name for the zone
controlled by this channel. This name can be up to eight (8) characters in length (the default names
are One/Two on initial power-up).
B. Move the cursor to the hour field in the On time setting. Press Up or Down to select the hour of
the time you want the ballasts to turn on.
C. Move the cursor to the minutes field and select the appropriate minutes setting.
D. Move the cursor to the a.m./p.m. setting and select “a” or “p” accordingly.
E. Move the cursor to the hour field for the Off time setting. Press Up or Down to select the hour of
the time you want the ballasts to be turned off.
F. Move the cursor to the minutes field and select the appropriate minutes setting for the time you
want to ballasts to be turned off.
G. Move the cursor to the a.m./p.m. setting and select “a” or “p” accordingly.
H. Move the cursor to the temperature setting for automatic dimming on overtemperature. The
temperature that you set here will be that which, if sensed by the probe, triggers dimming of all
connected ballasts in Zone B in order to reduce the temperature of the grow environment. Be sure
to place the temp probe away from direct sunlight to ensure correct temperature readings. Always
use a shield with the temp probe.
I. Move the cursor to the Sunrise/Sunset setting (“S/R” in the display) and choose your desired
setting for the period of time during which the PX1 will increase power to the ballasts in Zone B
at the beginning of the lighting cycle from zero to full power to simulate a natural sunrise, and
decrease power to the ballasts at the end of the lighting cycle from full power to zero to simulate a
natural sunset. The settings available are 0, 5, 10, 15, 20, or 30 minutes (0 = off).
