Sinotimer Tm-630s Manual May 2026

If the screen shows a small "a" symbol, the keyboard is locked. Press the C/R button 4 times quickly to unlock it.

If you can’t find the manual anywhere, reply below and I can help summarize all programmable functions, wiring diagrams, or troubleshooting steps. Better yet, if someone has a PDF copy, please share a link! sinotimer tm-630s manual

The maximum full time is 9999 hours, which equals 416 days. This is useful for long-term maintenance timers. If the screen shows a small "a" symbol,

Press the C/R (Cancel/Recall) button 4 times until the lock icon disappears. Set Current Time: Better yet, if someone has a PDF copy, please share a link

Disclaimer: This guide is based on the standard operational logic of the Sinotimer TM-630S series. Specific button labels (such as D+ vs M+) may vary slightly depending on the manufacturing batch. Always refer to the pictograms on the front of your specific unit.

: The keypad automatically locks after 30 seconds of inactivity. Press the (Cancel/Recall) button to unlock the screen. Set Current Time to adjust the day, hour, minute, and second.