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.

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.

– Simple 24-hour repeating timer with one ON time and one OFF time. sinotimer tm-630s manual

A: Yes. Use Program 1 for Monday (set 1ON at 8AM, 1OFF at 5PM). Use Program 2 for Tuesday. Or use the "Weekly" mode (Mode 4) where you can set 7 different groups.

Look for the words "ON", "OFF", or "AUTO" on the bottom or top right of the LCD. A: Usually means a programming conflict (e

Here is the key interpretation:

If you have purchased a Sinotimer TM-630S , you own one of the most versatile and affordable digital timer switches on the market. Widely used for industrial automation, home lighting control, aquarium pumps, hydroponic systems, and advertising signs, this DIN-rail mounted time relay offers precision and flexibility. – Simple 24-hour repeating timer with one ON

| 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) |