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+---- Thread: Help to identify part-number (/thread-3917.html)
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- rportela - 08-11-2014
[user=4494]Vangelis[/user] wrote:
Quote:Looking at that board, the only functionality I could see it doing is...I think that would be the case, but I\'m not sure why this board was needed.
1) Aggregating the Flood Sensor inputs (Normally Open). This is a little weird as you would never know what sensor tripped (you neighbour has one of these boards per sensor, which makes more sense)
2) Has a buzzer, to alarm on trigger (maybe)
3) Maybe giving the option of giving a normally closed or normally open output, to comfort (jumper setting)
Ideally you could do away with this board and connect these sensors to Comfort, one input per sensor, that way you can tell which one tripped, it looks like the sensor has a relay controlled output, so acts like a PIR for example.
The only gotcha would be if the outputs \'latch\', hence the need for this board - this can be easily tested with a multimeter across the sensor outputs
Hope this helps
Vangelis
What should I read on the sensor output, when the circuit is closed ?
- Vangelis - 08-11-2014
If you have a continuity setting, then the Multimeter will beep when you get a closed connection, otherwise use the resistance setting and check for close to zero ohms.
Vangelis
- rportela - 08-22-2014
OK, managed to get a replacement. Its again operacional.
Still don\'t know the origin (maker) of the board....