User manual

Microgate Srl P. 63 / 74
3.4.6.2 ACTIVATION
This particular setting (which can be changed ONLY from the Witty Manager and not from the timer, in order
to prevent unintended incorrect configurations), changes radically the behavior of the photocell as "contact,"
i.e. the way in which the photocell activates the impulse and transmits it to the timer.
3.4.6.2.1 Normally Open
This is the default and typical setting, i.e. the photocell is active when it is not interrupted and transmits the
impulse when it is interrupted by an athlete passing.
BEEP
N.Open
3.4.6.2.2 Normally Closed
This is the exact opposite of the case described above. The photocell is active when its beam is interrupted
and it transmits the impulse when the interruption ceases. An example of how it can be used is when an
athlete is "inside" the photocell beam, which are the "starting line," and when the athlete starts off, the
photocell sends the start impulse.
BEEP
N.Closed
3,2,1…GO!