SMJ DTHL1C User manual

DTHL1C Page 1 of 5
Instruction Manual for
Programmable Digital Timer
Item No. DTHL1C
A. Functions
1. The Programmable Digital Timer (hereinafter refer as “Timer”) can preset specific on/off time
of your home electrical appliances, e.g. using in coffee machine, lamps. It is ideal for energy
saving and home security.
2. The countdown function can switch on/off your appliance on your pre-set time and random
functions allows you to switch on and off the appliance in irregular time, it is not only ideal for
home automation, also prevent burglary during your absence.
3. The LCD displays program setting status and real time.
4. With maximum 98 on/off programs per week .
B. Diagram & Descriptions
No.
Description
Functions
1
LCD Display
Shows time and program setting.
2
CLOCK Button
- Return to real time display when in program setting
- Press and hold to interchange between 24 hours to 12 hours display
- press together with ▼－Button to change to Summer Time
3
CD Button
Press the button to start/stop countdown program when it is in AUTO
status and when Timer is plugged intoAC socket
4
RND Button
Press the button to start/stop random program when it is in AUTO status
and Timer is plugged into AC socket
5
On/Off Button
Change the setting mode to ON, ATUO or OFF. When press the button
each time, the horizontal line in the LCD moves to
ONAUTOOFF which were silk printed on the Timer
6
SET Button
Press and hold to start setting time and week and to confirm setting
7
▼－Button
Press the button to reduce the time, week or program group
8
▲+ Button
Press the button to increase the time, week or program group
9
S Printing
Press CLOCK Button and ▼－ Button at the same time to change to
Summer Time. Time display adds one hour automatically and “S” are
shown on the LCD.
10
R Button
Press and hold to reset all the programs
11
Socket & Plug
Connect your appliance to the socket and plug the timer to the wall AC
socket to get power

DTHL1C Page 2 of 5
C. Time Display
There are two different kinds of time displays:
1. 12-hour display: the digital number is from 11:59 to 12:00 with AM or PM shown on the LCD
2. 24-hour display: the digital number is from 00:00 to 23:59, no AM or PM is shown on the LCD
3. To change from 12-hour display to 24-hour display, or vice versa, press CLOCK Button and
hold it till the LCD display changes. Press CLOCK Button again to return to original display.
D. Week & Time Setting
1. Week Setting
1.1 Press and hold the SET Button until the week display flashes, which indicates setting is ready
1.2 Press ▲+ Button to increase the day, or ▼－ Button to reduce the day, the sequence of the
display is shown as follows:
MoTuWeThFrSaSu
1.3 Press ▲+/▼－Button once will increase or reduce the day by sequence slowly. To press and
hold the button, the week display moves quickly. Release the button until your desired day of
the week shown on the display. Press SET Button to confirm your setting.
2. Time Setting
2.1 After setting the day of the week, hour display flashes to indicate setting time can be started
2.2 Press ▲+Button to increase number of hour, or ▼－ Button to reduce.
2.3 Press ▲+/▼－Button once will increase or reduce each hour slowly. To press and hold the button,
the hour display moves quickly. Release the button until your desired hour shown on the
display. Press SET Button to confirm your setting.
2.4 “Minute”display then flashes to indicate setting minute is ready. Repeat the same procedures in
setting hour as in #2.2 and #2.3 to set minutes.
3. Summer Time Setting
3.1. Press CLOCK Button and ▼－ Button at the same time to change to summer time, time display
automatically adds one hour and “S” is shown on the LCD.
3.2. By pressing Clock Button and ▼－ Button again to cancel the summer time setting.
Noted:
LCD must be in real time display to start week and time setting. If LCD is in program setting
display, press CLOCK Button once to return to real time display.
E. Program Setting
1. When the LCD is in real time display, press ▲+ Button once to change to program setting
display, “1ON” will be shown on the lower left corner of the LCD:
1.1 “1”indicates the program group’s number (program group is from 1 to 14)

DTHL1C Page 3 of 5
1.2 “ON”indicates power on time.
1.3 “OFF”indicates power off time
2. To chose the program group and on/off status, press ▲+ Button to increase the group number,
sequence as follows:
1ON1OFF…… 14ON14OFFd ON/OFF (for countdown)real time display 
3. To reduce the program group number, press –Button, LCD displays in the following sequence:
d ON/OFF (for countdown)14OFF14ON…… 1OFF1ONreal time display 
4. After choosing the program group, then can set the week and time. Press SET Button until the
week display flashes, press ∧+ Button each time, the LCD will display the following in
sequence:
4.1 MO TU WE TH FR SA SU
4.2 MO TUWETHFRSASU
4.3 MO WE FR
4.4 TU TH SA
4.5 SA SU
4.6 MO TU WE
4.7 TH FR SA
4.8 MO TU WE TH FR and
4.9 MO TU WE TH FR SA
5. By pressing the ▼–Button, the week display will be shown in the opposite direction as above
sequence.
6. Press ▲+/▼－Button once will increase or reduce the week display slowly. To press and hold the
button, the display moves quickly. Release the button until your desired week pattern shown on
the display. Press SET Button to confirm, week display stops flashing.
7. After set the day of the week, the hour display flashes, repeat procedures mentioned in Part D2.
Time Setting to set time.
8. To set other program group’s on/off time, repeat procedures mentioned from #2 to #7.
Noted:
(a). To change a preset program, repeat procedures #2 to #7 as mentioned in Part E and input the
new data to replace the old setting
(b). After program setting, press CLOCK Button to return to clock display at once, or it will be
returned automatically after 15 seconds without pressing any other buttons.
F. Countdown Setting
1. When the LCD is in real time display, press ▼－ Button once to change to countdown setting
display, “d ON (or OFF)” will be shown on the lower left corner of the LCD
1.1 “d”: indicates the program is in countdown mode
1.2 “ON”: counting down the power on time
1.3 “OFF”: counting down the power off time
2. Press SET Button until the on/off display flashes, setting the countdown power on/off status is

DTHL1C Page 4 of 5
ready.
3. Press ∧+/∨－Button to chose countdown on/off program and press SET Button to confirm
4. Hour display flashes after setting the on/off status, then press ▲+/▼－Button to increase or
reduce hour and press SET Button to confirm.
5. Minute display then flashes, press ▲+/▼－Button to increase or reduce minute and press SET
Button to confirm
6. Second display flashes, press ▲+/▼－Button to increase or reduce the hour display and press
SET Button to confirm. Setting interval is from 99:59:59 to 1 second.
7. Connect the Timer to the AC socket and set the Timer to AUTO status in order to start /stop
the countdown functions.
8. Press CD Button once to start the countdown function, “d ON (or OFF)” flashes in the lower
corner of the LCD to indicate countdown is in progress. Press CD Button again to stop the
countdown function.
Noted:
(a). When countdown is in progress, LCD is in real time display, press ▼ － Button once to view the
countdown details.
(b) To change a preset program, repeat the above procedures #2 to #6 in Part F Countdown Setting
and input the new data to replace the old setting
(b). After program setting, press CLOCK Button to return to clock display at once, or it will be
returned automatically after 15 seconds without pressing any other buttons.
G. Random Setting
1. Random function turns on and off the appliance irregularly:
1.1 Minimum time for power off: 26 minutes
1.2 Maximum time for power off: 42 minutes
1.3 Minimum time for power on: 10 minutes
1.4 Maximum time for power on: 26 minutes
2. Connect the Timer to the AC socket and set the program to AUTO status in order to start/stop
the random function.
3. Press RND Button once, “r OFF” is flashing in the lower corner of the LCD, random function is
activated. Power is off for 26 to 42 minutes. The mode will change to “r ON”, where power
turns on from 10 to 26 minutes. Then back to “r OFF”again.
4. Press RND Button again can stop the random function, “r OFF”or “r ON” disappears from the
LCD.

DTHL1C Page 5 of 5
H. Override/Resume Preset Program
Press ON/OFF Button each time can override/resume the preset program, LCD changes the display
in the following sequence:
1.ON: override the preset program and appliance remains on at all time
2.AUTO: resume the preset program, appliance will be turned on and off automatically
according to the preset time
3.OFF: override the preset program and appliance remains off at all time
Noted:
(a). The preset countdown or random functions only activates when the Timer is in AUTO status and
plugged into the AC socket.
(b). When countdown function is activated, random and auto on/off program setting will not active.
(c). When random function is activated, countdown and auto on/off program setting will not active.
I. Connections
1. Preset your desired On/off programs on the Timer as mentioned above.
2. Switch off your electrical appliance
3. Connect your appliance’s power cord to the Timer’s socket, then connect the Timer to the AC
socket to get power
4. Switch on your appliance.
5. Appliance will then be turned on/off according to your preset programs unless manual override
pressed.
J. Safety Precaution
1. This Timer is for indoor use only, DO NOT use outdoor.
2. Appliance to be plugged into the Timer must not exceed the ratings as in “Specification”
3. Disconnect from the socket before removing the battery cover.
4. The Timer is using a rechargeable battery. When changing the batteries, the preset program will
all be reset and need to input new program afterwards.
K. Specifications
1. Current : 230VAC, 50Hz, 16A
2. Max. Power : 3500W
3. IP Rating : IP20
4. Working Temp : 0 - 55°C
5. Time Setting Interval: 1 Minute