Sinotimer Tm630s Manual Site

Does your Sinotimer TM630S manual mention "Cycle" mode? Look for a small switch near the battery. If your model supports it, you can set the timer to turn ON for X seconds and OFF for Y seconds endlessly. This is rare on the base TM630S but common on the TM630S-2.

Mistakes happen. If the device is behaving erratically, the Sinotimer TM630S manual recommends two types of reset. sinotimer tm630s manual