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7 Funzionamento SB51
1. Selezionare la sensibilità massima SB51
ruotando completamente la manopola
SENSITIVITY in senso orario.
2. Regolare la direzione della cella di
trasmissione finché non si ottiene un tono
continuo dal cicalino e la massima frequenza
di lampeggiamento dai LED. In caso di
assenza di segnale, la frequenza dei LED e
del cicalino è 1 Hz.
3. Per affinare ulteriormente la regolazione,
ridurre la sensibilità SB51 ruotando la
manopola SENSITIVITY in senso antiorario.
4. Continuare come indicato al passo 2 fino ad
ottenere il massimo segnale.
Rx Tx
SB51
5. Verificare il segnale ricevuto utilizzando un
voltmetro collegato ai terminali di misurazione
del tester di allineamento e verificare che
l’allineamento corrisponda alla tabella della
sezione “Ottimizzazione della ricezione”
(pagina 55).
Rx Tx
SB51
Voltmeter
Regolazione del tempo di risposta dell’allarme anti intrusione
Regolare il tempo di risposta dell’allarme anti intrusione ruotando il potenziometro
del tempo di risposta. In tale modo è possibile adattare la sensibilità della barriera
all’ambiente. Un tempo di risposta lungo riduce la sensibilità.
50 ms 100 ms 200 ms 400 ms 600 ms
(valore di default)
Tempo di
risposta
50 600
ms
Alarm
Disq.
Align.
B1 B2
Channel
RECEIVER
Delay
S
I
G
N
A
L
Potenziometro per la
regolazione del tempo
di risposta dell’allarme
anti intrusione
58


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