Sinotimer Mc101 Manual ((free)) Link

| Button | Function | |--------|----------| | (Set) | Enter settings / confirm | | ▲ (Up) | Increase value | | ▼ (Down) | Decrease value | | R (Reset) | Reset timer / clear settings |

| Problem | Likely Fix | |---------|-------------| | Display is blank | Check power on terminals 7 & 8 (AC or DC according to label) | | Timer never starts | Try a different range (delay too long?) or press R to reset | | Relay never turns on | Ensure you’re using NO (3) and COM (1). NC (2) is always closed with power on | | Counts too fast/slow | Check the range DIP switches (e.g., 0.1S vs 1S) | | Buttons don’t respond | Power cycle – rare lockup. Press and hold R for 3 seconds | sinotimer mc101 manual