1. Introduction
The SINOTIMER 12V Digital Timer Switch is a versatile, programmable device designed for precise control of electrical circuits. It features 7-day programming capabilities, allowing for up to 28 ON/OFF events per day. This timer is suitable for various applications powered by DC, AC, or solar battery systems, providing accurate-to-the-second control for automated operations.
Image 1.1: Front view of the SINOTIMER 12V Digital Timer Switch, showing the digital display and control buttons.
2. Package Contents
Verify that all items listed below are included in your package:
- 1 x Timer Unit
- 1 x Mounting Bracket
- 1 x Instruction Manual
- 1 x Dust Cover
- 1 x Internal Battery (pre-installed or separate)
- 1 x Disassembly Tool
- 2 x Screws
- 5 x Connecting Wires
Image 2.1: An image displaying the contents of the SINOTIMER 12V Digital Timer Switch package, including the timer unit, mounting bracket, manual, dust cover, battery, disassembly tool, screws, and connecting wires.
3. Product Features
The SINOTIMER Digital Timer Switch offers the following key features:
- 7-Day Programmability: Schedule events for individual days or blocks of days.
- High Event Capacity: Up to 28 ON/OFF events can be programmed per day.
- LED Power Indicator: Provides visual confirmation of power status.
- Internal Battery Backup: Retains programmed settings during power outages.
- Time Format Options: Supports both 12-hour and 24-hour display formats.
- Spade Connecting Wires: Includes 5 spade-type connecting wires for installation.
- High Load Capacity: Designed to handle significant electrical loads.
- Stable and Precise Operation: Ensures reliable and accurate timing.
- Smart Chip Technology: Enhances performance and functionality.
- Dustproof Design: Provides protection against dust ingress.
- High Definition Digital Display: Clear and easy-to-read screen.
Image 3.1: An image illustrating key features of the SINOTIMER 12V Digital Timer Switch, such as high load capacity, stable and precise operation, smart chip technology, dustproof design, multiple switch settings, and a high-definition LED digital display.
4. Specifications
| Attribute | Value |
|---|---|
| Brand | SINOTIMER |
| Model | TM-619 |
| Material | Plastic |
| Product Dimensions | 1.77"D x 2.83"W x 2.83"H (45mm D x 72mm W x 72mm H) |
| Item Weight | 4.6 ounces (0.29 Pounds) |
| Number of Settings | 28 (ON/OFF events per day) |
| Screen Size | 2 Inches |
| Power Input | 12V DC/AC |
| Contact Rating | 10A, 250VAC; 10A, 30VDC |
Image 4.1: Technical drawing showing the dimensions (62mm x 62mm x 37.5mm) and the 5-spade terminal layout of the SINOTIMER Digital Timer Switch.
5. Setup and Installation
Safety Warning: Installation should be performed by a qualified individual. Ensure power is disconnected before wiring to prevent electric shock.
5.1 Wiring Instructions
The timer features 5 spade terminals for input power and output control. Refer to the wiring diagram below for correct connections.
Image 5.1: A diagram illustrating the wiring connections for the SINOTIMER TM-619 timer, showing input power (Line of fire, Zero line) and output connections (NO, NC).
- Terminals 1 & 2: Input power (12V DC/AC). Connect your power source here.
- Terminal 3: Common (COM) for the relay output.
- Terminal 4: Normally Open (NO) contact. The circuit is closed when the timer is ON.
- Terminal 5: Normally Closed (NC) contact. The circuit is open when the timer is ON.
Use the provided spade connecting wires to ensure secure connections. An example of connected wires is shown below.
Image 5.2: An image showing the SINOTIMER digital timer switch with blue spade connectors attached to its terminals, demonstrating a typical wiring connection.
5.2 Mounting
The timer is designed for panel installation. Use the included mounting bracket and screws to secure the unit in place. Ensure adequate ventilation around the timer.
6. Operating Instructions
6.1 Setting Current Time
- Press the CLOCK button.
- While holding CLOCK, press DAY to set the current day of the week.
- While holding CLOCK, press HOUR to set the current hour.
- While holding CLOCK, press MIN to set the current minute.
- Release the CLOCK button. The time is now set.
6.2 Programming ON/OFF Events
The timer allows for up to 28 ON/OFF programs. Follow these steps to set a program:
- Press the TIMER button once. The display will show "1 ON".
- Press DAY to select the day(s) for this ON event. You can choose individual days, blocks of days (e.g., Mon-Fri), or all 7 days.
- Press HOUR to set the desired hour for the ON event.
- Press MIN to set the desired minute for the ON event.
- Press TIMER again. The display will show "1 OFF".
- Repeat steps 2-4 to set the day(s), hour, and minute for the corresponding OFF event.
- Continue pressing TIMER to cycle through "2 ON", "2 OFF", and so on, up to "28 OFF", setting each program as needed.
- After setting all desired programs, press the CLOCK button to return to the current time display.
To clear a program, press the R (Reset) button while viewing the specific ON or OFF program you wish to clear. This will set the time to "--:--".
6.3 Manual Mode Operation
The MANUAL button allows you to override programmed settings temporarily:
- Press MANUAL repeatedly to cycle through modes: ON (always on), AUTO (follows programmed schedule), OFF (always off).
- Select AUTO for the timer to execute your programmed schedules.
6.4 12/24 Hour Format
To switch between 12-hour (AM/PM) and 24-hour formats, press the HOUR button while holding the CLOCK button.
7. Maintenance
7.1 Battery Replacement
The timer includes an internal battery for backup power to retain settings. If the display becomes dim or settings are lost frequently, the battery may need replacement.
Image 7.1: An image of the SINOTIMER digital timer switch's rear panel, highlighting the battery compartment which indicates the battery can be replaced.
- Ensure the timer is disconnected from all power sources.
- Locate the battery compartment on the back of the unit.
- Carefully open the compartment using the provided disassembly tool or a small screwdriver.
- Remove the old button-cell battery. Note its orientation.
- Insert a new, compatible button-cell battery (e.g., CR2032) with the correct polarity.
- Close the battery compartment securely.
- Reconnect power and reset the current time and programs if necessary.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display / Unit is dead | No power supply; faulty wiring; dead internal battery. | Check power connections (Terminals 1 & 2). Verify power source. Ensure wiring is correct. Replace internal battery if necessary. |
| Programs not executing | Timer is in MANUAL ON/OFF mode; incorrect program settings; current time is wrong. | Press MANUAL until "AUTO" is displayed. Review program settings for correct ON/OFF times and days. Verify current time is set accurately. |
| Output always ON/OFF | Timer is in MANUAL ON/OFF mode; relay malfunction. | Switch to "AUTO" mode using the MANUAL button. If the issue persists, the relay may be faulty and require professional inspection or replacement. |
| Settings lost after power outage | Internal battery is depleted or faulty. | Replace the internal button-cell battery as described in Section 7.1. |
9. Warranty and Support
This product is covered by a standard manufacturer's warranty. Please refer to the warranty card included in your package for specific terms and conditions. For technical support or warranty claims, please contact SINOTIMER customer service through their official website or the retailer where the product was purchased.
For further assistance, visit the SINOTIMER Store on Amazon.
