1. Nhanganyaya
This manual provides detailed instructions for the installation, operation, and maintenance of the SINOTIMER TM919A-2 LCD Digital Programmable Timer Switch. This device is designed for automatic control of electrical appliances based on programmed time schedules, offering daily and weekly programming options.
2. Zvigadzirwa zveChigadzirwa
- Weekly 7-day programmable digital time switch.
- Multiple voltage options (5V, 12V, 24V, 110V, 220V, 85-265V). This specific model is 220V.
- Detachable battery design for backup power.
- 35mm DIN rail mounting for easy installation.
- LCD display for clear time and program viewing.
- 16 ON/OFF programs per day or week.
- Manual override function.
- High capacity 16A switching contact.
3. Safety Information
WARNING: Risk of electric shock. Installation should only be performed by a qualified electrician or competent person.
- Ita shuwa kuti simba radzimwa usati waiswa kana kugadzirisa.
- Usapfuure mutoro wepamusoro we16A.
- Verify correct voltage supply for the specific model (220V for TM919A-2).
- Chengeta mudziyo kure nehunyoro uye tembiricha yakanyanya.
4. Chigadzirwa Pamusoroview uye Zvikamu
The SINOTIMER TM919A-2 features an LCD display, control buttons, and wiring terminals for power input and load control.

Mufananidzo 4.1: Mberi view of the SINOTIMER TM919A-2 Digital Timer Switch, showing the LCD display, control buttons (P, D+, H+, M+, RESET, MANUAL), and wiring terminals.

Mufananidzo 4.2: The timer switch with its transparent protective cover opened, revealing the control buttons for programming and manual operation.
Mabhatani ekudzora:
- P (Program): Inopinda mumodhi yekuisa purogiramu.
- D+ (Day): Adjusts day of the week or program day.
- H+ (Hour): Adjusts hour or program hour.
- M+ (Minute): Adjusts minute or program minute.
- Dzorera zvakare: Inogadzirisa zvese zvigadzikiso kuzvinhu zvefekitori.
- MANOKODZO: Toggles output ON/AUTO/OFF.
5. Setup uye Kuiswa
5.1 Wiring Diagram
Refer to the wiring diagram on the side of the device and the illustration below for correct connection. Ensure all connections are secure.

Mufananidzo 5.1: Side view of the timer switch displaying the wiring diagram. Terminals 1 and 2 are for power input (L and N). Terminals 3, 4, and 5 are for the relay output (Common, Normally Open, Normally Closed).
- Terminals 1 & 2 (L, N): Connect to the main power supply (220V AC for this model).
- Terminal 3 (NO - Normally Open): Connects to the load when the timer is ON.
- Terminal 4 (COM - Common): Connects to one side of the load and the power supply.
- Terminal 5 (NC - Normally Closed): Connects to the load when the timer is OFF (less common for typical applications).
5.2 Initial Power-up and Reset
Upon first power-up or after a long period without power, the LCD display may be blank. The internal battery provides backup for settings. If the display is unresponsive or shows garbled characters, press the RESET button using a pointed object (e.g., a pen tip). This will clear all settings and restore the timer to its default state.
5.3 Kuisa Nguva Yazvino uye Zuva
- Press the P button once. The display will show the current time setting.
- Press D+ kuseta zuva razvino revhiki.
- Press H+ kuseta awa iripo.
- Press M+ kuseta miniti iripo.
- Press the P button again to exit time setting mode and return to normal operation.
6. Operating Instructions
6.1 Kuronga Kushanda Kwenguva Dzekuvhurwa/Kudzimwa
Chinotora nguva chinotsigira mapurogiramu anosvika makumi maviri eON/OFF. Purogiramu yega yega ine nguva yeON uye nguva yeOFF.
- Press the P button repeatedly until "1 ON" appears on the display. This is the first ON program.
- Press D+ to select the day(s) for this program. Options include individual days, weekdays, weekends, or all 7 days.
- Press H+ to set the desired hour for the "ON" event.
- Press M+ to set the desired minute for the "ON" event.
- Press P again. "1 OFF" will appear. This is the first OFF program.
- Repeat steps 2-4 to set the day(s), hour, and minute for the "OFF" event.
- Ramba uchidzvanya P to cycle through "2 ON", "2 OFF", up to "16 ON", "16 OFF". If you do not need all 16 programs, simply press P until the display returns to the current time.
- To save and exit programming mode, press the P button until the current time is displayed.
6.2 Manual override
The MANUAL button allows you to override the programmed settings temporarily or permanently.
- Press MANUAL once: Toggles between ON/AUTO/OFF modes.
- ONI: The output is continuously ON, ignoring programs.
- DZIMA: The output is continuously OFF, ignoring programs.
- AUTO: The timer operates according to the programmed ON/OFF cycles. This is the standard operating mode.
7. Kuchengeta
7.1 Kutsiviwa kwebhatiri
The timer includes a detachable CR2032 lithium battery to maintain time and program settings during power outages. If the display becomes dim or resets frequently, the battery may need replacement.

Mufananidzo 7.1: The timer switch shown with its battery compartment open and a CR2032 lithium battery, indicating the detachable battery design.
- Disconnect power to the timer before attempting battery replacement.
- Locate the battery compartment, typically on the side or back of the unit.
- Bvisa bhatiri rekare reCR2032 nokungwarira.
- Isa bhatiri idzva reCR2032, uchivimbisa kuti polarity yacho yakarurama (+ side up).
- Vhara nzvimbo yebhatiri.
- Reconnect power and reset the current time and day if necessary.
8. Kugadzirisa matambudziko
- Kuratidza hakuna chinhu:
- Check power supply connections (Terminals 1 & 2).
- Ensure the internal battery is charged or replaced if old.
- Press the RESET bhatani.
- Programs are not running:
- Iva nechokwadi chekuti nguva iri mukati AUTO mode (check the display for "AUTO"). Press MANUAL kutenderera modes.
- Iva nechokwadi chekuti nguva nezuva razvino zvakarongwa nemazvo.
- Check that the ON/OFF programs are correctly entered and enabled for the desired days.
- Confirm wiring to the load (Terminals 3, 4, 5) is correct.
- Timer resets unexpectedly:
- The internal battery may be low or depleted. Replace the CR2032 battery.
- Iva nechokwadi chekugadzikana kwemagetsi kune chikwata.
9. Zvinotsanangurwa
| Feature | Tsanangudzo |
|---|---|
| Model | TM919A-2 |
| Magetsi | 220V AC (as per model) |
| Kushandisa Simba | 4.5 VA (MAX) |
| Temperature Range | -20°C kusvika +50°C |
| Display | LCD |
| Switching Contact | 1 shanduko yekuchinja |
| Zvirongwa | 16 ON/OFF per day or week |
| Hysteresis | 2 sec/day (at 25°C) |
| Capacity | 16A |
| Timer Range | 1 miniti kusvika maawa gumi nemasere |
| Minimum Interval | 1 miniti |
| Black-out Memory | 60 days (with internal battery) |
| Item Weight | 0.15 kg (5.3 ounces) |
| Mounting | 35mm DIN Njanji |
| Screen Size | 1.2 inches |

Mufananidzo 9.1: Dimensional drawing of the SINOTIMER TM919A-2, showing measurements in centimeters for height, width, and depth.
10. Warranty uye Tsigiro
Specific warranty information for the SINOTIMER TM919A-2 is not provided in the product details. For warranty claims or technical support, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.





