Furuno Multi Instrument FI-504 - Manual (Page 20)

1. OPERATION
12
To stop or restart the timer, press the SELECT/CLEAR key momen-
tarily. A short beep sounds when the timer is stopped or restarted.
To stop and reset the timer to start value, press the SELECT/CLEAR
key until you hear a long beep. The timer is stopped and reset to start
value.
The timer settings are reflected on any timer-equipped instrument in the
network which is set up for synchronization.