ChronTrol XT Series, User Manual, Page: 3 / 51

How to Use this Manual
The XT User ’ s Guide is divided into five sections.
Section 1: Introduction describes the XT’s physical characteristics
(keyboard, LED's, circuits, and input connector). It also briefly describes the
features and capabilities of the XT.
Section 2: Set Up describes step-by-step how to set system parameters (such
as the date and time) and how to program the XT to perform simple timing
operations (such as turning a circuit ON at a specific time and OFF at a
specific time).
Section 3: Programming Procedures provides XT programming strategies
and tips, explains how to enter a program into the XT, and how to take
advantage of its wide-ranging and powerful capabilities.
Section 4: Sample Programs includes step-by-step instructions for
programming the XT. These sample programs illustrate the most common
and direct programming techniques.
Appendix A: Special Programming Considerations discusses Interval
Timing, the difference between a day and a twenty-four hour period, Day
Omission, the Daylight Saving Time standard, and the effect each of these has
on programmed operations.
Conventions Used in the Manual:
BOLD CAPS
Represent keyboard keys you should press.
DAY ENTER
means press the DAY key and then the ENTER key.
MMDDYY Expresses how dates and times appear on the display:
HHMMSS Month/Day/Year is expressed as MMDDYY. For example,
December 3, 1998, displays as 120398. Hours and minutes
are expressed as HHMM. For example, 11:45 displays as
1145.
P– n Variables are expressed in italics. For example, an “n” in
italics indicates a number to be supplied by the user.
boldface type Identifies information that appears on the XT’s display and,
within text, indicates critical information.