Idiomas disponibles
Idiomas disponibles
Complete all wiring connections as indicated in the sequence. Switch on the main switch. Nothing
happens. Then when you disconnect the wire connecting spring 28 to 43, the speaker will produce horse
neighing sound! This circuit can be used as an alarm system. For example, when somebody trips on the
alarm string, horse neighing sound will warn you of a trespasser!
12.48 Water level LED alarm
Wiring Sequence
3-18, 4-7-28-47, 17-48-12-26, 8-27-49-46, 11-29-25
28
7
100Ω
8
29
27
25
26
11
100k Ω
12
Complete all wiring connections as indicated in the sequence. Switch on the main switch. Drop a drop of
water on the touch-plate. Then the multi-color LED will light up and the blue LED will extinguish. Wipe
the water off the touch-plate. Then the blue LED will light up and the multi-color LED will extinguish.
This principle can be used for water-level warning. Have a similar circuit at the place where the water
level is needed to be supervised. When the water-level is beyond warning level, the multi-color LED will
light up, and the blue LED will extinguish. When the water level is below warning level, the multi-color
LED will extinguish and the blue LED will light up.
12.49 Light intensity indicator
Wiring Sequence
3-18, 4-7-14-47, 17-12-26-48, 8-27-46-49, 11-13-25
7
14
8
13
25
11
100k Ω
12
Complete all wiring connections as indicated in the sequence. Switch on the main switch. When there is
light shining on the light sensor, the multi-color LED will light up, but the blue LED will not. Cover the
light sensor completely. Since no light is shining on it, the multi-color LED will extinguish and the blue
V. 01 – 01/02/2024
47
46
49
48
47
100Ω
46
27
49
26
48
KNS130
4
3
18
17
4
3
18
17
30
©Velleman nv
