1. Product Overview
The SINOTIMER TM929BK is a smart digital timer switch designed for precise control of electrical appliances. Featuring a 24-hour programming capability and a clear backlit LCD display, it allows users to set automated schedules for various applications. Its robust 30A rating and wide voltage input make it suitable for a range of residential and industrial uses.
Figure 1: Front view of the TM929BK Smart Timer Switch.
2. Safety Information
- Ensure the power supply is disconnected before installation or maintenance.
- Installation should be performed by a qualified electrician to prevent electric shock or damage to the device.
- Do not exceed the maximum rated current of 30A.
- Operate within the specified voltage range of 85-265V AC.
- Keep the device away from water and high humidity environments.
3. Installation and Setup
3.1 Mounting
The TM929BK timer switch is designed for DIN rail mounting. Securely attach the device to a standard DIN rail in your electrical panel.
Figure 2: DIN rail mounting clip.
3.2 Wiring Diagram
Refer to the diagram below for correct wiring. Ensure all connections are tight and secure.
Figure 3: Wiring terminals and specifications.
- Power Input: Connect the Live (L) wire to terminal 1 and the Neutral (N) wire to terminal 2. The operating voltage is AC 85-265V.
- Load Output: The timer switch provides a single-pole double-throw (SPDT) relay output.
- Terminal 3: Common (COM)
- Terminal 4: Normally Open (NO) - The circuit is closed when the timer is ON.
- Terminal 5: Normally Closed (NC) - The circuit is open when the timer is ON.
- Connect your load to the appropriate output terminals (e.g., Common and Normally Open for a device that turns on with the timer).
4. Operating Instructions
4.1 Control Buttons
Figure 4: Display and control buttons.
- MENU: Enters programming mode or navigates through options.
- ▲ (Up Arrow): Increases values or moves up in menus.
- ▼ (Down Arrow): Decreases values or moves down in menus.
- OK: Confirms selections or settings.
- Res (Reset): Resets the device or cancels current operation.
4.2 Setting Current Time
- Press the MENU button to enter the main menu.
- Navigate to the 'Time Setting' or similar option using the Up/Down arrows.
- Press OK to select.
- Adjust the hour, minute, and day of the week using the Up/Down arrows and confirm each with OK.
- Press MENU to exit the setting mode.
4.3 Programming ON/OFF Schedules
The TM929BK supports 24-hour programming. You can set multiple ON/OFF programs for daily operation.
- Press MENU to enter programming mode.
- Navigate to 'Program' or 'Schedule' option and press OK.
- The display will show '1 ON'. Set the desired ON time (hour and minute) using Up/Down and OK.
- Set the days of the week for this program (e.g., Mon-Fri, Sat-Sun, or all days).
- The display will then show '1 OFF'. Set the desired OFF time for the first program.
- Repeat steps 3-5 for additional ON/OFF programs as needed.
- Press MENU to save and exit programming mode.
4.4 Manual Override
The timer typically includes a manual override function to temporarily switch the output ON or OFF without affecting the programmed schedule. Consult the on-screen menu for 'Manual' or 'Mode' options.
5. Maintenance
- Keep the device clean and free from dust. Use a soft, dry cloth for cleaning.
- Do not use abrasive cleaners or solvents.
- Ensure proper ventilation around the device to prevent overheating.
- Periodically check wiring connections for tightness, especially in high-vibration environments.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank. | No power supply; internal battery depleted. | Check power connections (L and N). If power is present, allow time for the internal battery to charge (if applicable) or replace the battery if accessible. |
| Load does not turn ON/OFF as programmed. | Incorrect program settings; incorrect wiring; load fault. | Verify program settings (ON/OFF times, days). Check wiring to the load (Common, NO, NC). Test the load independently. |
| Buttons are unresponsive. | Device frozen; protective cover obstructing. | Press the 'Res' (Reset) button. Ensure the clear protective cover is fully open or removed if it's interfering with button presses. |
7. Specifications
| Feature | Specification |
|---|---|
| Model | TM929BK |
| Rated Current | 30A |
| Operating Voltage | AC 85-265V |
| Frequency | 50/60Hz |
| Display | 1.6 Inch Backlit LCD |
| Switching Capacity | 30(15)A, 250VAC |
| Material | ABS |
| Standard | EN 60730-2-7 |
| Color | White |
8. User Tips
- For critical applications, consider using a backup power source or a timer with battery backup to maintain settings during power outages.
- When setting programs, double-check the AM/PM or 24-hour format to avoid unintended operation.
- If the display becomes dim or unresponsive, ensure the device is receiving adequate power.
9. Warranty and Support
For warranty information and technical support, please refer to the seller's policies or contact the manufacturer directly. Keep your purchase receipt for any warranty claims.
