Download SpecWare8 User's Guide - Spectrum Technologies

2.1 Preferences
Preferences must be specified when the software is first installed to allow the
computer, the software and the data logger to work together harmoniously. The
Preferences screen can be accessed from the File Menu option (See p. 13). The
Preferences screen is divided into 5 separate tabs: General, Communications, Data
Storage, Graph and Monitor. Features not available in SpecWare Basic appear
grayed out.
General
Units
Allows you to choose whether data
output is in English or metric units.
Degree Day Calculations
The degree day calculation method
specified here will be used in the reports
and the insect and disease models. The
Actual Degree Day Method calculates
degree days using the temperatures
from each logged interval. The Single
Sine Method applies a smooth sine
curve to estimate degree days using the
daily high and low temperatures. The
Growing Degree Day Method considers
only the high and low temperatures for
the day to compute the total number of
degree days acquired (See Degree
Days, p. 39).
Location (for ET Calculation)
The evapotranspiration algorithm incorporates specific information on weather station
location. Enter latitude and altitude information in the appropriate boxes. Integer
values of latitude and longitude will give sufficient accuracy.
Growing Season Begins in Month
SpecWare allows you to produce graphs and reports at the user-defined beginning of
the growing season. To correctly compute reports for an entire growing season, it
must also know whether or not the season spans 2 calendar years. This is relevant
mainly for growers in the southern hemisphere. Entering the month when the growing
season begins allows SpecWare to make any necessary adjustments.
Date and Time Display
The date/time displayed on graphs can be in U.S. or international format. 24- and 12hour clock format must be selected as well as whether the date will be shown in
standard format or as a Julian Date.
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