SINOTIMER TM618H-4 Digital Programmable Timer Switch User Manual

1. Introduction

Thank you for choosing the SINOTIMER TM618H-4 Digital Programmable Timer Switch. This device is designed for precise time control of electrical appliances, offering weekly programming with multiple ON/OFF cycles. It features a clear LCD display, easy-to-use buttons, and a built-in battery to save programs during power outages. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and longevity of your timer switch.

Figure 1: SINOTIMER TM618H-4 Digital Timer Switch

2. Safety Information

• Always disconnect power before installation or servicing.
• Installation should be performed by a qualified electrician or knowledgeable individual.
• Ensure the timer's voltage and current ratings match your application.
• Do not expose the device to water, moisture, or extreme temperatures.
• Keep out of reach of children.
• Do not attempt to open or modify the timer, as this will void the warranty and may cause electric shock.

3. Product Overview

The TM618H-4 is a versatile digital timer switch with several advanced features:

• Unique Patent Design: Ergonomic and functional design.
• Max 1.6 inch HD LCD Display: Clear and easy-to-read screen.
• 12/24 Format Shift (AM/PM): Flexible time display options.
• Countdown Function: For specific short-term timing needs.
• Sleep Mode: Reduces power consumption when not actively in use.
• Saving Programs by Inside Battery: Retains settings during power outages for up to 90 days.

Figure 2: Key Features and Upgrades

Front Panel Controls

The front panel of the timer features the following buttons:

• WEEK: To set the day of the week.
• HOUR: To set the hour.
• MIN: To set the minute.
• RECALL: To recall or clear settings.
• CLOCK: To set the current time.
• PROG: To enter programming mode.
• MANUAL: To manually switch between ON/AUTO/OFF modes.

4. Specifications

5. Setup and Installation

5.1 Wiring Instructions

Proper wiring is crucial for the safe and correct operation of the timer. Refer to the diagrams below for connections. Ensure power is disconnected before wiring.

Figure 3: TM618H Wiring Diagram (LINE, NEUT, LOAD)

Figure 4: Rear View of Timer Module with Terminals

For TM618H-4 (12V DC/AC Model):

1. Input Power (12V DC/AC): Connect your 12V DC/AC power supply to the terminals labeled 'INPUT 12VDC' (typically terminals 1 and 2). Observe polarity if using DC.
2. Load Connection: Connect the device you wish to control to the 'OUTPUT' terminals (typically terminals 4 and 5). The timer acts as a switch for this load.

Note: The TM618H-4 is a new type with very easy wiring: Power in, Power out. Some variants may come with pre-wired connectors or enclosures for convenience.

Figure 5: Timer with Enclosure and Pre-wired Connectors

Figure 6: Timer with Pre-wired Connectors

5.2 Mounting

The timer can be installed either by panel mounting or screw mounting, depending on your application needs. Ensure it is mounted in a stable, dry location away from direct heat or moisture.

6. Operating Instructions

6.1 Initial Setup and Display

Upon first power-up or after a long power outage, the display may be blank. Press the 'C/R' button to reset the timer. The internal battery will keep the clock running and programs saved.

6.2 Setting Current Time

1. Press and hold the 'CLOCK' button.
2. While holding 'CLOCK', press 'WEEK' to set the current day of the week.
3. While holding 'CLOCK', press 'HOUR' to set the current hour.
4. While holding 'CLOCK', press 'MIN' to set the current minute.
5. Release 'CLOCK' to save the current time.
6. To switch between 12-hour (AM/PM) and 24-hour format, press and hold the 'CLOCK' button for approximately 3 seconds.

6.3 Programming ON/OFF Times (Timer Setting)

The timer supports up to 16 ON/OFF programs per day.

1. Press the 'PROG' button once. The display will show '1 ON'.
2. Press 'HOUR' to set the desired ON hour for the first program.
3. Press 'MIN' to set the desired ON minute for the first program.
4. Press 'WEEK' repeatedly to select the day(s) of the week for this program. You can choose individual days, weekdays, weekends, or all days (15 combinations available).
5. Press 'PROG' again. The display will show '1 OFF'.
6. Press 'HOUR' to set the desired OFF hour for the first program.
7. Press 'MIN' to set the desired OFF minute for the first program.
8. Press 'WEEK' repeatedly to select the day(s) of the week for this OFF program (usually matching the ON program).
9. Repeat steps 1-8 for additional ON/OFF programs (up to 16).
10. After setting all desired programs, press the 'CLOCK' button to exit programming mode and return to the current time display.

6.4 Countdown Function

1. Press and hold 'PROG' and 'C/R' simultaneously for 3 seconds to enter countdown mode. The display will show '00:00'.
2. Press 'HOUR' and 'MIN' to set the desired countdown duration (up to 23 hours 59 minutes).
3. Press 'MANUAL' to start the countdown.
4. To stop the countdown, press 'MANUAL' again. The timer will return to the preset countdown time and remain OFF.
5. To exit countdown mode and return to clock display, press and hold 'PROG' and 'C/R' simultaneously for 3 seconds.

6.5 Auto Time Deflection Correction (Weekly)

This feature allows you to adjust for minor time inaccuracies over a week.

1. Press and hold 'CLOCK' and 'C/R' simultaneously for 3 seconds to enter correction mode. The display will show 'ld: m'.
2. Press 'D+' to adjust the correction value (range +/- 30 seconds). This value represents the weekly time difference the system will automatically correct.
3. Press and hold 'CLOCK' and 'C/R' simultaneously for 3 seconds to exit correction mode.

6.6 Sleep Mode

1. From the clock display, press and hold 'HOUR' and 'MIN' simultaneously for 3 seconds to enter sleep mode. The LCD display will turn off.
2. To exit sleep mode and reactivate the display, press the 'RECALL' button. All settings will be retained.

6.7 Manual ON/OFF/AUTO Operation

The 'MANUAL' button allows you to override programmed settings temporarily.

1. Press 'MANUAL' repeatedly to cycle through the modes:
• ON: The output is continuously ON, ignoring programs.
• AUTO: The timer operates according to the programmed ON/OFF times.
• OFF: The output is continuously OFF, ignoring programs.

7. Maintenance

• Keep the timer clean and dry. Wipe with a soft, dry cloth.
• Do not use abrasive cleaners or solvents.
• Ensure proper ventilation if installed in an enclosed space.
• The internal battery is designed for long life and is not user-replaceable.

8. Troubleshooting

9. User Tips

• This timer is ideal for automating irrigation systems in home gardens when connected to a 12V battery and pump, providing reliable scheduling for watering.
• Before final installation, test your programmed schedules by observing the timer's output with a simple test load.
• Keep a record of your programmed schedules for easy reference.

10. Warranty and Support

This product is covered by a manufacturer's warranty against defects in materials and workmanship. For warranty claims, technical support, or further assistance, please contact your seller or the SINOTIMER official support channels. Please have your product model and purchase details ready.

For additional documentation, including a PDF user manual, please refer to the following link: SINOTIMER TM618H-4 User Manual (PDF)