DTHL1C - Digital timer SMJ - Free user manual and instructions

Product Type	Digital Timer
Brand	SMJ
Model	DTHL1C
Category	Programmable Digital Timer
Voltage	230 V AC
Frequency	50 Hz
Max Current	16 A
Max Power	3500 W
IP Rating	IP20
Working Temperature	0°C to 55°C
Time Setting Interval	1 minute
Maximum Programs	98 on/off per week
Countdown Range	1 second to 99:59:59
Random Function Off Time	26 to 42 minutes
Random Function On Time	10 to 26 minutes
Display Type	LCD with 12/24 hour format
Power Backup	Rechargeable battery (Ni-MH)
Plug Type	Type F (Schuko) - 230V
Summer Time Setting	Yes, via CLOCK + ▼ buttons
Override Modes	ON, AUTO, OFF
Safety	Indoor use only

Frequently Asked Questions - DTHL1C SMJ

How do I set the current time and day?

Press and hold the SET button until the week display flashes. Use ▲+ or ▼- to select the day, then press SET. The hour will flash; set it similarly, then minute. Press CLOCK to return to real time.

How can I set a weekly program?

From real time display, press ▲+ to enter program setting. Choose the program group (1ON to 14OFF) using ▲+ or ▼-. Press SET until week flashes, select days pattern, then set hour and minute. Repeat for other groups. Press CLOCK to finish.

What is the countdown function and how do I use it?

The countdown function switches your appliance on or off after a preset time. From real time display, press ▼- to see "d ON" or "d OFF". Press SET to choose on/off, then set hours, minutes, seconds. Plug in and set to AUTO. Press CD to start; press again to stop.

How does the random function work?

Random function turns your appliance on and off irregularly to simulate presence. Minimum off time: 26 min, maximum off: 42 min. Minimum on: 10 min, maximum on: 26 min. Plug in, set to AUTO, press RND to start. Press RND again to stop.

Can I override the timer to keep the appliance always on or off?

Yes. Press the ON/OFF button to cycle through ON (always on), AUTO (follows program), and OFF (always off). The LCD shows the current mode.

What does the 'S' symbol on the display mean?

The 'S' indicates Summer Time (Daylight Saving Time) is activated. To toggle it, press CLOCK and ▼- simultaneously. When active, the time advances by one hour.

How do I reset the timer to factory settings?

Press and hold the R button (reset) with a pointed object. All programs will be cleared and the timer will return to default settings. Note that the internal battery may need recharging after a reset.

What is the maximum load I can connect?

The timer is rated for 230V AC, 16A, and 3500W. Do not exceed these ratings. For inductive loads (motors), derate to 1/3 of the rated current.

Can I use this timer outdoors?

No. The timer has an IP20 rating, meaning it is only suitable for indoor, dry locations. Do not expose to moisture or dust.

What should I do if the display is blank?

First, ensure the timer is plugged into a working AC socket. If blank, the internal rechargeable battery may be depleted. Leave the timer plugged in for a few hours to charge the battery. If still blank, try pressing the R button to reset.

USER MANUAL DTHL1C SMJ

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

1 6 2 9 10 11 ON AUTO DET SET CLOCK C.S. BEET 4 5 8 7 3

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 into AC 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

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:

graph LR
    A["→"] --> B["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)

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 →

1. 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 →

1. 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

1. By pressing the ▼-Button, the week display will be shown in the opposite direction as above sequence.
2. 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.
3. After set the day of the week, the hour display flashes, repeat procedures mentioned in Part D2. Time Setting to set time.
4. 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

ready.

1. Press + / -Button to chose countdown on/off program and press SET Button to confirm
2. Hour display flashes after setting the on/off status, then press ▲+/▼-Button to increase or reduce hour and press SET Button to confirm.
3. Minute display then flashes, press ▲+/▼-Button to increase or reduce minute and press SET Button to confirm
4. 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.
5. Connect the Timer to the AC socket and set the Timer to AUTO status in order to start /stop the countdown functions.
6. 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

1. Connect the Timer to the AC socket and set the program to AUTO status in order to start/stop the random function.

2. 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.

3. Press RND Button again can stop the random function, "r OFF" or "r ON" disappears from the LCD.

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