Davis Instruments Energy EnviroMonitor, User Manual

Page: 24 / 63

Cooling Degree-Days
Energy EnviroMonitor Manual Page 17
8. Press and release ENTER to move to the next digit, the “ones” digit.
The “ones” digit begins to flash.
9. Press and hold ENTER down.
The “ones” digit will begin to cycle through the possible entries (0 to 9).
E
NTERING THE
“O
NES
” D
IGIT
10. Release ENTER when the correct entry appears.
11. If necessary, repeat the steps above to correct your entry for any of the digits.
12. When you have entered the correct time, wait four seconds without pressing any
keys.
After four seconds, the Energy EM saves the entry and returns to normal
operation. The time you just entered will appear in the display as the current
time.
C
OOLING
D
EGREE-
D
AYS
The Energy EM displays daily cooling degree-days, total cooling degree-days
during the period, and the average cooling degree-days per day during the
period for both temperature and T-H index. (See “Period” on page 11 for a dis-
cussion of the period.) The default cooling degree-days base threshold is 65˚ F
(18˚ C). You may change this threshold if desired. You may display cooling
degree-days in Fahrenheit or Celsius.
Viewing Cooling Degree-Days
1. To display the daily cooling degree-days sum, press COOL’G D-DAYS.
The daily cooling degree-days sum appears on the right of the display. The
base threshold setting appears on the left of the display.
D
AILY
C
OOLING
D
EGREE-
D
AYS
The daily cooling degree-days sum represents the total cooling degree-days
since the last time you (or AutoClear) cleared cooling degree-days. For
instructions on clearing daily cooling degree-days, see “Clearing Daily Cool-
ing Degree-Days Sum” on page 21.