Sinotimer Tm-630s Manual 🎉

Look for the words "ON", "OFF", or "AUTO" on the bottom or top right of the LCD.

Here is the key interpretation:

However, like many multi-function digital timers, the TM-630S can be intimidating at first glance. The button labels are small, the instructions (often printed on a single folded sheet) are frequently lost, and the "manual" is not always easy to decipher. sinotimer tm-630s manual

A: Usually means a programming conflict (e.g., OFF time set before ON time without crossing midnight, or overlapping programs). Press R and reprogram. Look for the words "ON", "OFF", or "AUTO"

| Mode | Display Symbol | Meaning | Typical Use | | :--- | :--- | :--- | :--- | | | Single block | Timer cycles once at set time | Delayed start | | Mode 2 | Recurring arrow | Continuous cycles (ON for X min, OFF for Y min) | Hydroponic pumps | | Mode 3 | 24H + cycle | 24-hour cycle with specific ON/OFF times | Street lights | | Mode 4-17 | Weekday sequences | Different programs for different days | Office lights (M-F, Sa-Su separate) | A: Usually means a programming conflict (e

A: The TM-630S uses a crystal oscillator. ±0.5 seconds/day is normal. If losing minutes, the internal crystal may be damaged. Press R and reset.

Always disconnect mains power before opening the terminal cover or changing wiring. Voltages inside can be lethal. Last updated: October 2026. This guide is for informational purposes. Always refer to the original product documentation for specific model variations.