ATC-Automatic Timing & Control 7DT-2CH Users Manual

_____________________________________________________________________________________________________________

7DT-2CH 7-Day Timer

INSTALLATION & OPERATION MANUAL

______________________________________________________________________________________________________________

Table of Contents Page

I. Specification…………………………………………………………. 2

II. Warning………………………………………………………………. 2

III. Features of the Device……………………………………………… 3

IV. Controls/Menu Description…………………………………………. 3

1. Menu Flow Chart…………………………………………………... 3

2. Description of the Device…………………………………………. 4

3. Description of the Control Buttons and Mode………………….. 4

4. Economical Mode………………………………………………….. 5

5. Illumination of Display……………………………………………… 5

6. Reset the Time, Date, and Year…………………………………. 5

7. Reset all the Programs……………………………………………. 5

V. Setting the Date and Time………………………………………….. 6

VI. Programming…………………………………………………………. 7

1. Mode Priorities……………………………………………………… 7

2. Normal Mode……………………………………………………….. 7

3. Repeat Cycle Mode……………………………………………….. 9

4. Pulse Mode…………………………………………………………. 10

5. Random Switching Mode………………………………………….. 11

6. Manual Mode……………………………………………………….. 12

7. Cycle/Pulse Output Setting……………………………………….. 12

8. Editing Programs…………………………………………………… 13

9. Deleting Programs…………………………………………………. 13

10. Setting the Holiday Mode………………………………………….. 14

1

I.) Specification:

Model 7DT-2CH
Power Supply Universal 12-240 VAC or VDC (50-60 Hz)
Power Consumption AC 0.5-2 VA / DC 0.4-2W
Allowable Operation Voltage -15%; +10%
Number of Outputs 2 Independent Form C Relay Outputs
Contact Rating 2 Independent SPDT (Single Pole Double

Throw Contact)

16 amps @ 250 VAC & 24 VDC Resistive Load
Switching Capacity 4000 VA/AC, 384 W/DC
Peak Current 30 amps / <3 sec.
Mechanical Durability >30,000,000 operations
Electric Durability >70,000 operations
Operational Backup during Power Failure Up to 3 years
Accuracy of the Operating Max. +/- 1 Second Day at 20º
Minimum Run Time 1 minute (Normal Mode); 1 second (Pulse

Mode); 2 second (Cycle Mode)
Number of Memory Places 100
Display LCD
Operational Temperature -10º to 55º C
Storing Temperature -30º to 70º C
Dimension 90 x 35.6 x 64 mm
Weight 137 grams

II.) Warning:

The device is made to be connected to Single-Phase AC and DC voltage and must be installed in
accordance with rules and standards applicable in the particular country. The installation,
connecting, setting and handing can be done only by a person with the adequate
electromechanical qualification, who is well informed about the function of this device and the
manual.
Before you start with installation, make sure that the device is not energized and that the main
switch is in the “OFF” position.
Do not install the device to the sources of excessive electromagnetic disturbances. Assure an
excellent circulation of the air by correct installation so the maximal operating temperature of the
device is not surpassed even in case of permanent operation and higher temperature of the
surrounding. To install and set, use a screwdriver with 2 mm dimension. Be aware of the fact
that it is a fully electronic device while handing it.
Proper function of the device depends on the transport, storing and handling. If you find any
marks of damage, missing part, or if the device seems not operational, do not install this device
and claim the warranty at your distributor. After completion of the useful life of the device it must
be stored in protective waste dump.

2

III.) Features of the Device:

 Two-channel version, mounting on DIN rail, terminals
 Daily and weekly program in one device
 Power supply 12-240 VAC / VDC
 Functions: according to the user program, manual, random, and holiday program modes.
 100 memory places, illuminated LCD display
 Operational back up – up to 3 years
 Pulse and repeat cycle output

*Before you start programming this timer switch, please make sure to read
carefully through the following instructions.

IV.) Controls/Menu Description:

1.) Menu flow chart

3

2.) Description of the Device

3.) Description of the Control Buttons and Modes

a) There are four control buttons located on the face of the unit just below the

display

b) First button going from left to right is the (PRG button) this button is used to

enter the program setup menus by pressing and holding it down for 3
seconds

c) The PRG button has a plus sign (+) located right below the PRG on the face
d) The next button on the right of the (+PRG) button is the (-MAN) button
e) The (MAN) button can be quickly pressed while in the run mode operation to

quickly turn on output 1 on and off manually

4