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MODE

Push and release MODE to
change the mode.
The modes are Countdown
timer, Off, Auto, On, and Rand.

Countdown timer mode

In countdown timer mode the
clock symbol is displayed (a).
When countdown timer mode is
entered the countdown time is set
to 75 minutes (b).
And the plugged in light(s) are
tuned on (c).
The countdown timer can be set to turn the plugged in light(s)
on or off after 75, 60, 45, 30 or 15 minutes. That lets you, for
example, set the timer to turn the plugged in light(s) off an
hour after you have left the room. The flashing alarm clock
symbol indicates the DT11 is in countdown timer mode.
To set the countdown timer:
Push and release MODE until the countdown timer clock is
displayed. (75 minutes is selected.)
If desired, push and release MIN to switch change the
countdown to 60, 45, 30, 15 or 0 minutes.
If desired, push and release PROG ON/OFF to switch the
initial state of the plugged in light(s).
Wait ten seconds or push and release TIME SET to start the
countdown.
While counting down the countdown
timer clock symbol flashes, and you
can push TIME SET to switch
between the countdown the current
time.
When the countdown reaches 00:00
the connected light(s) are switched
and the clock display remains 00:00 (d).

Off mode

In the Off mode the plugged in
light(s) are off. You can push PROG
ON/OFF to switch to ON mode and
turn the plugged in light(s) on.

Auto mode

In auto mode the programmed on and
off times automatically switch the
plugged in light(s) on and off. See
how to program the timer, below for
how to enter or change the automatic
program times.
You can push PROG ON/OFF while in Auto mode to manually

MODE

HOUR

MIN

PROG

ON/OFF

MODE

RESET

TIME SET

PROG

DS

a

b c

d

AM

Off

override the program and turn the plugged in light(s) on or off. The
programmed switching times remain. The timer stays in auto
mode.

On mode

In the On mode the plugged in light(s)
are on. Push PROG ON/OFF to turn the
plugged in light(s) off and switch the
mode to Off.

Rand mode

In Random mode the DT11 randomly
switches the connected light(s) on and
off. A random on period is from 5 to 60
minutes. The number of random switches
per day is from 4 to 12.

How to program the timer:
You can program the timer in Auto, On or Off modes. The
program is followed in Auto mode.

1. Push and release PROG to start
the programming. Prg 1 is displayed
and the display shows

– – : – – or the programmed time for

Prg 1. timer on (lit light bulb symbol
on).
– – : – – display means there is nothing programmed for
that Prg number and on / off time.

Note: You can push and
release ON/OFF to switch
between the Prg # on time
and the Prg # off time. The
light bulb symbol switches
on or off but the plugged in
light(s) do not.

2. Push and release HOUR to choose the hour.

3. Push and release MIN to choose the minute.

4. When correct, push PROG ON/OFF to switch between
programming on time and off time for that Prg number.

5. Push PROG to Prg 2, Prg 3, ... up to Prg 14, to program
additional on and/or off times.

6. Push TIME SET or wait 15 seconds to exit
programming.

ART129

AM

Auto

AM

On

AM

Rand

AM

Auto

Prg

2    3        1, 5

4

HOUR

MIN

PROG

ON/OFF

MODE

RESET

TIME SET

PROG

Auto

Prg

DS

AM

6

Note: In case of a conflict (for example you have
programmed the timer to be on from 7 to 9 pm in
program 1 and also programmed the timer to be off
from 8 to 10 pm in program 3) the higher program
number is followed. In case of a conflict within a
program number Off is followed rather than On.

Battery replacement
Batteries retain the program during power outages.
Batteries should last 3 years or more if the timer is left
plugged in. If  the display is dim, weak or unreadable
when the timer is unplugged from the outlet replace the
batteries. After removing the batteries from the unit, you
have a minimum of 15 seconds to insert
new batteries without losing existing
program.”

The DT11 uses two L1154 alkaline
batteries.
Purchase fresh
batteries.
Unplug the
DT11.
Remove the
battery carrier.
Replace the
batteries.
Replace the
battery carrier.
Plug the DT11 into the outlet.
Reprogram the DT11 if needed.

+

ALKALINE

CELL

L1154

FULL ONE YEAR WARRANTY

If within one (1) year from date of purchase, this product fails due to a

defect in materials or workmanship, Intermatic Incorporated will repair or
replace it free of charge.

The warranty does not apply to: (a) damage caused by accident,

abuse, mishandling, dropping; (b) units which have been subject to
unauthorized repair, opened, taken apart; (c) units not used in
accordance with directions; (d) damages exceeding the cost of the
product.  Some states do not allow a limitation of damages, so the
foregoing limitation may not apply to you.  This warranty gives you
specific legal rights, and you may have other rights which vary from state
to state.

This warranty service is available by either: a) returning the product to

the dealer from whom the product was purchased or (b) mailing postage
prepaid to the authorized service station listed below.  Be sure to wrap
the product securely when mailing to avoid shipping damage.  This
warranty is made by Intermatic Incorporated, Spring Grove, Illinois,
60081-9698. 

AUTHORIZED SERVICE STATION

INTERMATIC INCORPORATED

INTERMATIC PLAZA

SPRING GROVE, ILLINOIS 60081-9698

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