Hi,
I am trying to determine if a couple of MOC3011 octocouplers I have are working or not.
What I've done in that direction was to put one multimeter in resistance or diode mode, connect its leads to pins 4 and 6, then use another multimeter in diode mode and connect its leads to pins 1 and 2 (red lead going to pin 1).
However, although I could see a voltage drop measured by the second multimeter across the IR diode integrated into MOC3011, there was no change with regards to the measurement on the first multimeter - it kept showing OL.
Am I testing this correctly?
Thanks!