Alex and Daniel
We checked a Noliac NAC2125-H08 for shorts and found none. We measured the capacitance to be 2.4641 uF. The expected capacitance is 2.4 uF. We also measured a resistance of 3.5082 kOhm. When we pressed on the piezo, we noticed a voltage. We flagged one of the wires for polairty. See attached photos. We also noticed that the nylon tipped set screws that hold the piezo in place provide a voltage.
I looked for the dots on the Piezo we tested, and they are on the wire we DID NOT FLAG. I think we should flip which wire is flagged and then use that convention going forward.
I flagged the lead of the piezo with the black dot, which is explicitly stated by Noliac as the positive electrode. When I press on the piezo, there is a positive voltage when measuring off this positive lead.
