ChronTrol XT Series Manuale utente
XT Series Timer ChronTrol
User's Guide
IMPORTANT SAFEGUARDS
Always follow basic safety precautions when operating electrical equipment.
Please observe the following safeguards:
• Read and save all instructions.
• To avoid electrical shock, do not immerse timer in water or other liquids,
and do not operate when wet.
• All equipment controlled by this timer must have wattage ratings within the
capacity of this timer, as stated in the SPECIFICATIONS AND
INSTALLATION instructions. Exceeding the rated capacity may result in
overheating and damage.
• Do not use this timer where flammable gas or fumes exist.
• Do not use this timer to control equipment that is damaged or
malfunctions.
• Extreme external interference can, in rare situations, cause random
behavior of this device. Do not use this timer in applications where
random ON or OFF signals are potentially hazardous.
WARNING: If using this timing device in a situation or
environment that is critical to the welfare
and/or sustenance of laboratory specimens,
please test all programs by carefully
simulating or staging the critical events.
This document is furnished solely for the convenience of the authorized user without warranty
or obligation of any kind whatsoever. ChronTrol Corporation shall not be responsible for any
damages, including consequential, caused by reliance on information contained herein
including, without limitation, inaccuracies, errors, or omissions of any kind whatsoever.
© Copyright ChronTrol Corporation 2001
ChronTrol Corporation
6160 Fairmount Avenue
San Diego, California 92120
(619) 282-8686
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–nVariables 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.
XT Series Timer ChronTrol
2User's Guide
Table of Contents
Section 1 - Introduction
Introduction....................................................................................................5
XT Features....................................................................................................6
Physical Description ......................................................................................8
The XT Display ...................................................................................8
The XT LED Indicators.....................................................................11
Keyboard ...........................................................................................12
Section 2 - Setup
Set-up Procedure..........................................................................................13
Setting System Parameters.....................................................................13
Time...................................................................................................13
Change Between 12- and 24-Hour Format................................13
Date....................................................................................................14
Day of Week......................................................................................14
Lock Code.........................................................................................14
Set the Lock Code .......................................................................14
Lock the Keyboard ......................................................................14
Unlock the Keyboard...................................................................15
Change the Lock Code................................................................15
Clear the Lock Code....................................................................15
Manual Operation ........................................................................................16
Manually Switching a Circuit...........................................................16
Manually Activating a Program .......................................................16
Two Simple Programs..................................................................................17
Section 3 - Programming Procedures
Features ........................................................................................................18
On/Off and Interval Programs.....................................................................18
Circuits and Other Control Assignments....................................................19
Day Omission...............................................................................................19
Cycle Length.................................................................................................19
Calendar Feature..........................................................................................19
Entering a Program......................................................................................20
Program Number ..............................................................................22
Circuit Assignments..........................................................................22
Program Assignments.......................................................................22
Input Assignments.............................................................................22
ChronTrol XT Series Timers
User's Guide 3
Interval Specification........................................................................23
On Time.............................................................................................24
On Date..............................................................................................24
Off Time............................................................................................24
Off Date.............................................................................................24
Day Omission....................................................................................25
Cycle Length......................................................................................25
Inputs (External Activation)........................................................................26
Setting Inputs.....................................................................................26
Manually Enabling and Disabling an Input......................................27
Functions......................................................................................................27
Function 1: Daylight Saving Time...................................................27
Function 2: Sequence Start...............................................................27
Creating and Editing the Holiday List.........................................................28
Review..........................................................................................................29
System Parameters Review..........................................................................30
Review Date......................................................................................30
Review the Day of Week...................................................................30
Review the Holiday List...................................................................30
Review the Seconds..........................................................................30
Program Review...........................................................................................32
Begin Program Review ....................................................................32
Step A: Program Status.....................................................................32
Step B: Control Assignments...........................................................32
Step C: On Time................................................................................32
Step D: Off Time...............................................................................33
Step E: Interval Length .....................................................................33
Step F: Omitted Days........................................................................33
Step G: Cycle Length........................................................................33
Step H: Exit Program Review .........................................................33
Input Review ................................................................................................34
Cross Review ...............................................................................................34
Countdown Timer........................................................................................35
Changing Program Entries...........................................................................36
Deleting Program Entries............................................................................36
Factory Settings (Defaults)..........................................................................36
XT Series Timer ChronTrol
4User's Guide
Section 4 - Sample Programs
Sample Program 1: Daylight Saving Time..................................................38
Sample Program 2: Sequence Start.............................................................38
Sample Program 3: On/Off Program with Day Omit.................................38
Sample Program 4: Interval Program with Cycle Length ..........................39
Sample Program 5: On/Off Program with Cycle Length...........................40
Sample Program 6: On/Off Program with Day-based Cycle.....................40
Sample Program 7: 24-hour based Program ..............................................41
Sample Program 8: Program Controlling Program ...................................42
Sample Program 9: Using Inputs.................................................................43
Sample Program 10: Re-trigger and Time Out...........................................44
Sample Program 11: School Bells ..............................................................45
Sample Program 12: Delay Program ..........................................................45
Appendix A: Special Programming Considerations
Interval Timing.............................................................................................46
Overlapping Midnight..................................................................................47
Cycles and Daylight Saving Time................................................................47
How to Set a Day-Based Program ...................................................48
ChronTrol XT Series Timers
User's Guide 5
Section 1: Introduction
Congratulations on your purchase! Your ChronTrol XT is a programmable,
microprocessor-based timer that can control up to 16 devices (outputs) and
can receive inputs from up to 8 external devices. The XT can easily be
programmed to switch circuits on and off at specific times and dates, for
durations, on a cycle, or from external devices attached to its optional input
connector. 20 to 40 timing programs can be stored in the XT’s memory.
The XT can be programmed down to the second. Its versatile calendar
automatically adjusts for leap years, Daylight Saving Time and holidays.
Programs are easy to set, review, and change through the 24-pushbutton,
audible keyboard.
The XT family includes four basic models: table-top, wall-mount, expandable
wall-mount, and rack-mount. Table-top models are available with two or
four circuits, AC outlets or dry contacts. All other models are available in
two- to sixteen-circuit configurations with dry contact outputs rated up to 20
Amps. The SPECIFICATIONS AND INSTALLATION sheet for your
particular ChronTrol model is included with your unit. Specification sheets
for other types are available upon request. The features and programming
techniques described in this manual apply to all models of the XT.
XT Series Timer ChronTrol
6User's Guide
XT Features
The XT supports the following list of functions and programming features.
For complete operational descriptions of these functions, see Section 3:
Programming Procedures.
• Manual Operation. ChronTrol’s XT series is designed around its
advanced programming capabilities; however, you can manually override
programmed settings through the keyboard without waiting for or
disturbing programmed operations.
• Advanced Programming. The XT’s advanced programming features
open the door to many exciting possibilities. Through the XT keyboard,
you can enter up to 40 programs. Each program has a unique number
which identifies it when entering, reviewing, or changing its settings.
Programs can be set to control circuits, inputs, even other programs.
These are referred to as Control Assignments. Control Assignments can
switch on and off on a daily or weekly schedule, repeating at rates from
two seconds to one year. They can also switch on and off on specific
dates, or one time only, responding to either clock time or outside
signals.
• Program Review, Verification, and Change. The XT allows you to
review, verify, and change any and all of its settings. You can review
individual programs and input settings. You can also review specific
information, such as the activity of a Control Assignment, and the
programs or inputs to which it is assigned.
• Day Omission. The XT’s programming flexibility allows you to enter
programs that execute on a regular schedule yet automatically omit
specified days of the week, for example Saturday and Sunday.
• Holidays. Holidays can occur on any day of the year. The XT allows you
to create your own Holiday List. You may then specify, within each
program, whether or not that program will execute on the days you’ve
included in your Holiday List.
• Functions. Two special functions are provided for your convenience:
Daylight Saving Time (Function 1), which adjusts the Time of Day clock
by one hour; and Sequence Start (Function 2), which controls the rate at
which circuits are restored to the ON position following a power failure.
ChronTrol XT Series Timers
User's Guide 7
• Inputs. On XT models equipped with the N8 Input Option (see
SPECIFICATIONS AND INSTALLATION sheet), programs, circuits, and
inputs can be switched based on external conditions. Through the input
connector, devices such as temperature and light detectors can be
connected to the XT. You may then specify that certain programs or
circuits be switched by a signal from these external devices. You can
program an input to ignore external signals as well.
• Locking Keyboard. The XT provides a locking keyboard. With a user-
programmable Lock Code, you can prevent unauthorized access to the
XT keyboard.
• Power Fail Protection. The Time of Day continues to operate, with
crystal accuracy, during power failure. A nine-volt battery keeps the
clock operating and protects the system memory to prevent the loss of
stored programs. When power returns, all ON and OFF times are saved.
Outputs are switched to the proper positions for the current time, in
sequence or all at once.
• Countdown Timer. The XT can count down the hours, minutes, and
seconds for any event you specify, such as the execution of a program or
the switching of a circuit.
XT Series Timer ChronTrol
8User's Guide
Physical Description
The following sections describe the physical characteristics of the XT
controller and define the function of each.
The XT Display
The XT’s display serves two functions: ordinarily it displays the current Time
of Day in hours, minutes, and seconds, but during programming it confirms
entries and reviews previous settings. Figure 1 illustrates the XT Display and
Indicators.
Figure 1: XT Display and Indicators
Altri manuali per XT Series
1
Indice
