1. Product voorbijview
The SINOTIMER TM922 is a versatile 2-channel programmable timer switch designed for precise control of electrical equipment. It features a large LCD display with blue backlight for easy readability and two independent 16A relay outputs, allowing simultaneous control of two separate devices or systems. This timer supports up to 8 ON/OFF programs per day and 15 combinations per week, enabling automated scheduling for various applications.

Figuur 1: Voorzijde view of the SINOTIMER TM922 programmable timer, showing the blue LCD display and control buttons.
2. Belangrijkste kenmerken
- Dual Independent Outputs: Two 16A relay outputs for controlling two separate devices or systems.
- Programmeerbare schema's: Up to 8 ON/OFF programs per day and 15 weekly combinations.
- Nauwkeurige controle: Work cyclically per week or day with accurate-to-the-second control.
- Geheugen back-up: Programs are saved by battery backup during power failures.
- Vervangbare batterij: Ensures long life usage.
- DIN-railmontage: Standard 35mm DIN rail design for easy installation in DB boxes.
- Breed ingangsvolumetage: Operates on 85-265Vac 50/60 Hz.
- Hoog vermogen: Maximum current of 16A, supporting up to 3500 watts.
3. Installatie
The TM922 timer is designed for DIN standard 35mm rail mounting, making it suitable for installation within electrical distribution boxes (DB boxes). Ensure all power is disconnected before attempting installation.

Figuur 2: Zijkant view Illustratie van het DIN-railmontagemechanisme.
3.1 Bedradingsschema
Refer to the wiring diagram printed on the device or included in the packaging for correct electrical connections. The device has terminals for power input (L, N) and two independent relay outputs (C1, C2 with their respective common, normally open, and normally closed terminals).

Figuur 3: Boven view showing the wiring terminals for power input and relay outputs.
Belangrijk: De installatie mag uitsluitend worden uitgevoerd door een gekwalificeerde elektricien om de veiligheid en naleving van de plaatselijke elektrische voorschriften te garanderen.
4. Gebruiksaanwijzing
The TM922 timer offers intuitive programming through its front panel buttons. For a visual guide, please refer to the official product video below.
Video 1: Official SINOTIMER TM922 Instruction Guide, demonstrating key functions and programming steps.
4.1 Vergrendelfunctie
To lock or unlock the timer's buttons, press and hold the "MENU" button for over 3 seconds. This prevents accidental changes to programmed settings.
4.2 De huidige tijd instellen
- Press the "OK" button to select the minute, hour, second, and day of the week.
- Use the "▲" (Up) and "▼" (Down) buttons to adjust the selected number.
- Press "OK" again to confirm and move to the next setting.
4.3 Setting F1 Channel (First Channel)
The F1 channel supports up to 8 ON/OFF programs. "11 ON" refers to the first program's ON time for the first channel, and "11 OFF" refers to its OFF time.
- Press the "MENU" button to enter the first program setting.
- Press "OK" to set the first ON/OFF time.
- Use "▲" and "▼" to adjust the second, minute, hour, and week settings.
- Repeat for all desired ON/OFF programs for the F1 channel.
4.4 Setting F2 Channel (Second Channel)
Similar to F1, the F2 channel also supports up to 8 ON/OFF programs. "21 ON" refers to the first program's ON time for the second channel, and "21 OFF" refers to its OFF time.
- Press the "MENU" button to navigate to the F2 channel program setting.
- Press "OK" to set the first ON/OFF time.
- Use "▲" and "▼" to adjust the second, minute, hour, and week settings.
- Repeat for all desired ON/OFF programs for the F2 channel.
4.5 Schakelkanalen
While in the clock status display, press the "Res" button to switch between displaying the F1 and F2 channel statuses.
4.6 Working Status
To manually shift the working status (ON, ON AUTO, OFF, AUTO OFF) for either channel, press the "MENU" and "▲" buttons together. This allows for temporary overrides of programmed settings.
5. Onderhoud
The SINOTIMER TM922 is designed for low maintenance. Keep the device clean and free from dust. Do not expose it to excessive moisture or extreme temperatures.
- Schoonmaak: Reinig de buitenkant met een droge, zachte doek. Gebruik geen schurende reinigingsmiddelen of oplosmiddelen.
- Batterij vervangen: The internal battery provides backup for saved programs. If the display becomes dim or programs are lost after a power outage. De batterij moet mogelijk vervangen worden. Raadpleeg een gekwalificeerde technicus voor het vervangen van de batterij.
- Inspectie: Periodically inspect the wiring connections to ensure they are secure.
6. Probleemoplossing
| Probleem | Mogelijke oorzaak | Oplossing |
|---|---|---|
| Het scherm is leeg of donker. | No power supply or low internal battery. | Check power connections. If power is present, the internal battery may need replacement. |
| De programma's worden niet uitgevoerd. | Incorrect programming, manual override active, or incorrect current time. | Verify program settings (ON/OFF times, days). Check working status (ensure it's not manually OFF). Reset current time if inaccurate. |
| Knoppen reageren niet. | Vergrendelingsfunctie is actief. | Press and hold "MENU" for 3 seconds to unlock the buttons. |
| Output not switching. | Wiring issue, overloaded circuit, or faulty relay. | Check wiring connections. Ensure connected load does not exceed 16A/3500W. If issues persist, contact support. |
7. Specificaties
| Attribuut | Waarde |
|---|---|
| Model | TM922 |
| Ingangsvolumetage | 85-265Vac 50/60 Hz |
| Max stroom | 16A |
| Maximaal vermogen | 3500 watt |
| Aantal kanalen | 2 (Independent Relays) |
| Programs per Day | 8 AAN / UIT |
| Weekly Combinations | 15 |
| Regelnauwkeurigheid | Second-level |
| Montage | 35 mm DIN-rail |
| Productafmetingen | 2.68 x 1.42 x 3.54 cm (6.8 x 3.6 x 9 inch) |
| Artikelgewicht | 5.9 ounce (167 gram) |
| Fabrikant | SINOTIMER |
8. Garantie en ondersteuning
For warranty information, technical support, or service inquiries, please contact SINOTIMER customer service through their official website or the retailer from whom the product was purchased. Keep your purchase receipt as proof of purchase.
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