Deficit; Runtime; Totl Run; Clr Totl - Weathermatic SmartLine SL800 Owner's Manual

times can be changed by adjusting the soil and slope settings
at SOIL TYPE on the programming dial. The times are also
affected by adjusting the SPRINKLER TYPE setting on the dial
for precipitation rate.

5.27.5 DEFICIT

Deficit is the amount of water (displayed in inches) that needs
to be replaced for your plant material due to water loss through
evapotranspiration – evaporation from soil and transpiration
from plants. Your SmartLine® controller will calculate the water
deficit each day at midnight based on data communicated
to it by the SLW series Weather Sensor. The water deficit will
continue to accumulate until the next scheduled watering cycle
and will return to a zero reading when watering is finished. The
SmartLine® controller uses an internationally recognized formula
called the Hargreaves formula for calculating evapotranspiration.
During a rain event, deficits will decrease to zero. SmartLine®
will not begin calculating deficits and run times again until the
ACTIVE LED goes back to green after the SLW DLY.
If you wish to change the deficit numbers, press and hold down
either the UP or DOWN button for 5 seconds. This allows you to
use the DOWN button to reduce the latest deficit for the zone to
as low as 0 inches.

5.27.6 RUNTIME

This is the computed runtime based on the deficit for the next
scheduled run.

5.27.7 TOTL RUN

TOTL RUN is the total run time for each zone since the date
shown (default date in the SmartLine® controller is January 1,
2000 shown as 01/01/00). You can review TOTL RUN for either
5.0 Advanced Menu
the BASIC or SMART modes. After you select TOTL RUN with
the UP button, use NEXT to view the date when TOTL RUN
accumulation began. Use NEXT again to view the total run times
for each zone.
You can use the NEXT and BACK buttons to move through the
zones. After you go through all the zone positions, use the NEXT
button one more time to take you back to the TOTL RUN screen.

5.27.8 CLR TOTL

CLR TOTL is used to clear and reset the total run time for each
zone shown in the TOTL RUN menu.
From the CLR TOTL menu, press NEXT and the display will
show KEEP. If you want to clear the TOTL RUN time and reset
the accumulation date, press either the UP or DOWN button to
display CLEAR. With CLEAR showing in the display, either press
NEXT or BACK or turn the dial to complete the clearing and
resetting. This feature will stop accumulations on a zone after
255 hours of cumulative zone run time.

5.27.9 CLR DEF

To clear deficits, press NEXT. Use UP or DOWN buttons to select
KEEP or CLEAR. Press NEXT or BACK to exit CLEAR DEFICITS.
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