SINOTIMER TM618sH Digital Programmable Timer Switch

1. Introduction

The SINOTIMER TM618sH is a versatile digital programmable timer switch designed to automatically control various electrical equipment based on a preset schedule. It features a 1.6-inch LCD display, 7-day programmable control, and a 1-second interval setting, making it suitable for a wide range of applications.

This timer is ideal for managing devices such as streetlights, neon signs, lamps, water heaters, air conditioners, billboards, electric cookers, and agricultural facilities. Its built-in battery ensures program retention during power failures, offering reliable and precise control.

Figure 1: Front view of the SINOTIMER TM618sH-2 digital timer with English panel.

2. Safety Information

• Always disconnect power before installing or servicing the timer switch.
• Ensure all wiring is done by a qualified electrician and complies with local electrical codes.
• Do not exceed the maximum load ratings specified in the specifications section.
• Keep the device away from water, moisture, and extreme temperatures.
• This device is designed for indoor use unless otherwise specified.
• Do not attempt to open or repair the device yourself; refer to qualified personnel.

3. Product Overview

The TM618sH timer features a clear LCD display and intuitive buttons for easy programming and operation.

3.1. Display and Controls

The front panel includes:

• LCD Display: Shows current time, day of the week, and ON/AUTO/OFF status.
• WEEK Button: Used to set the day of the week.
• HOUR Button: Used to set the hour.
• MIN Button: Used to set the minute.
• SEC Button: Used to set the second (for 1-second interval programming).
• CLOCK Button: Used in conjunction with other buttons to set the current time and to exit programming mode.
• PROG Button: Used to enter and navigate through programming settings.
• MANUAL Button: Toggles the output status between ON, AUTO, and OFF.
• R (Reset) Button: Recessed button to reset all settings (use a pointed object).

3.2. Product Demonstration Video

4. Specifications

Figure 2: Product Parameters for SINOTIMER TM618sH.

5. Setup

5.1. Wiring Instructions

The TM618sH timer is designed for easy wiring with separate input and output terminals. Ensure power is disconnected before proceeding with wiring.

Figure 3: Detailed wiring diagram for TM618sH. Connect Line and Neutral to terminals 1 and 2 for input, and Load to terminals 4 and 5 for output.

Figure 4: Simplified wiring diagram and dimensions for TM618sH. L and N for Power Input, N and L for Load Output.

• Input Power: Connect the Live (LINE) wire to terminal 1 and the Neutral (NEUT) wire to terminal 2. Ensure the voltage matches your timer model (e.g., 200-250VAC for 220V models).
• Output Load: Connect the Neutral (NEUT) wire of your load to terminal 4 and the Live (LOAD) wire of your load to terminal 5.
• The timer acts as a switch for the Live line of your load.

5.2. Initial Power-Up

After wiring, apply power to the timer. The LCD display should light up. If the display is blank or shows erratic characters, press the 'R' (Reset) button using a pointed non-metallic object to clear the memory and reset the device.

6. Operating Instructions

6.1. Setting Current Time

To set the current day and 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. To switch between 12-hour and 24-hour format, press and hold CLOCK and HOUR simultaneously for 3 seconds.

6.2. Programming ON/OFF Cycles

The timer supports up to 8 ON/OFF programs per day. Follow these steps to set your desired schedule:

1. Press the PROG button once. The display will show