Introdução
The SINOTIMER TM-919B is a highly versatile 7-day, 24-hour programmable digital timer switch designed for automatic control of various electrical equipment. This device is ideal for applications requiring precise scheduling, such as street lamps, neon lights, water heaters, air conditioners, and agricultural facilities. Its robust design and user-friendly interface ensure reliable operation and easy setup.
Key features include a 30A load capacity, 16 ON/OFF programs, and a built-in rechargeable battery for memory backup during power failures. The timer is designed for DIN rail mounting, making it suitable for integration into electrical distribution boards.
Produto acimaview

Figura 1: Frente view of the TM-919B Digital Timer, displaying the time and control buttons for programming.

Figura 2: Lateral view of the TM-919B, illustrating its compact design and the integrated DIN rail mounting clip.

Figura 3: Frente view of the TM-919B with approximate dimensions: 8.7cm height, 6cm width, and 4.5cm depth.
Precauções de segurança
Always disconnect power before installation or maintenance. Installation should be performed by a qualified electrician in accordance with local electrical codes. Do not expose the device to moisture or extreme temperatures. Ensure proper wiring to avoid damage to the unit or connected appliances.
Configuração e instalação
- Montagem: The TM-919B is designed for DIN rail mounting. Securely attach the timer to a standard 35mm DIN rail within your electrical distribution board.
- Fiação:
- Connect the main power supply (220-240V AC, 50/60Hz) to the input terminals (typically marked L and N or 1 and 2).
- Connect the load (appliance) to the output terminals (typically marked 3, 4, 5 for a changeover switch). Refer to the wiring diagram on the device for precise connections. Ensure the load does not exceed 30A (resistive) or 15A (inductive).
- Inicialização inicial: After wiring, restore power. The display should illuminate. The built-in battery will begin charging, which may take a few hours for full capacity.
- Restabelecer: If the display is erratic or you wish to clear all settings, press the "R" (Reset) button using a pointed non-metallic object. This will clear all programs and reset the clock.
Instruções de operação
Definição da hora atual
- Pressione o "P" button (Program) once to enter time setting mode.
- Imprensa "D+" para definir o dia da semana atual.
- Imprensa "H+" para definir a hora atual.
- Imprensa "M+" para definir o minuto atual.
- Para alternar entre o formato de 12 horas (AM/PM) e o de 24 horas, pressione "P" e "H+" simultaneamente.
- Pressione o "P" button again to exit time setting and return to normal operation.
Programming ON/OFF Cycles (16 Programs)
O temporizador suporta até 16 programas de LIGAR/DESLIGAR. Cada programa consiste em um tempo LIGADO e um tempo DESLIGAR.
- Pressione o "P" button repeatedly to cycle through the program settings (1 ON, 1 OFF, 2 ON, 2 OFF, ..., 16 ON, 16 OFF). The display will show "1 ON", "1 OFF", etc.
- When "1 ON" is displayed, use "D+" to select the day(s) of the week for this ON event. Options include individual days, weekdays, weekends, or all days.
- Usar "H+" e "M+" to set the desired ON hour and minute.
- Imprensa "P" again to move to "1 OFF". Set the day(s), hour, and minute for the OFF event using "D+", "H+", e "M+".
- Repeat steps 2-4 for any additional programs (up to 16).
- Após configurar todos os programas desejados, pressione o "P" button until the display shows the current time, or wait for 30 seconds for it to automatically return to normal operation.
Substituição manual
The timer has a manual override function to temporarily change the output state.
- Pressione o "MANUAL" button (or a button labeled with a hand icon, if present) repeatedly to cycle through modes:
- EM: A saída está continuamente ligada.
- AUTO LIGADO: Output is currently ON, following the program.
- OFF: A saída está continuamente DESLIGADA.
- DESLIGADO AUTOMÁTICO: Output is currently OFF, following the program.
- Select "AUTO ON" or "AUTO OFF" to ensure the timer follows the programmed schedule.
Manutenção
The SINOTIMER TM-919B is designed for low maintenance. Keep the device clean and free from dust. Do not use abrasive cleaners. The built-in rechargeable battery is designed for long life and typically does not require replacement under normal operating conditions. If the display frequently goes blank during power outages, the battery may need servicing by a qualified technician.
Solução de problemas
| Problema | Possível causa | Solução |
|---|---|---|
| O display está em branco. | Sem fonte de alimentação; bateria interna descarregada. | Check power connections. Allow unit to charge for several hours after initial power-up. |
| O temporizador não liga/desliga nos horários programados. | Incorrect programming; manual override set to ON/OFF; current time incorrect. | Verify program settings. Ensure manual override is set to "AUTO ON" or "AUTO OFF". Correct current time. |
| Output is always ON or always OFF. | Manual override engaged. | Press the "MANUAL" button until "AUTO ON" or "AUTO OFF" is displayed. |
| Erratic display or unresponsive buttons. | System error; static electricity. | Perform a full reset by pressing the "R" button. Reprogram all settings. |
Especificações
| Parâmetro | Valor |
|---|---|
| Modelo | TM-919B |
| Fonte de energia | 220-240 V CA, 50/60 Hz |
| Capacidade de carga | 30A (Resistive), 15A (Inductive) @ 250V AC |
| Programas | 16 ON/OFF settings per day/week |
| Intervalo mínimo | 1 minuto |
| Intervalo de tempo | 1 minute to 168 hours (7 days) |
| Bateria interna | 1.2V/40mA rechargeable (for memory backup) |
| Time Error Correction | ±30 seconds per week |
| Dimensões (C x L x A) | 87 mm x 60 mm x 45 mm (aprox. 8.7 x 4.5 x 6 cm) |
| Montagem | Trilho DIN |
| Material | ABS + Componentes Eletrônicos |
| Certificações | IEC 60367, CE |
Garantia e Suporte
Specific warranty information for this product is not provided in the available documentation. For warranty claims or technical support, please contact the retailer or manufacturer directly. Ensure you have your purchase receipt and product model number (TM-919B) ready when contacting support.





