Need some help figuring out a Solenoid Valve. I bought this http://adafruit.com/products/996
So as I understand when I put power thru the 2 cords it opens, turn power off and it closes. So I took a power supply 12VDC = 2A and connected. The sound it makes is a high click, almost so I think that it opens, but it repeats the whole time with 0.5-1s interval.
Tried to connect one of the cords to a relay (http://www.lawicel-shop.se/prod/Relay-Kit-1_873852/LAWICEL-AB_8758/SWE/EUR
) so I an tell Arduino to open/close the valve. The relay works but when ON it acting same way as when connecting power source straight to the solenoid valve.
Would really appreciate some guidance here.