Guru
Joined: 05/10/2019
Location: United KingdomPosts: 9125
| Posted: 01:35pm 10 May 2022 |
You can get the "gain" of the opto from the DS. It's the current transfer ratio - the ratio of the LED current to the output current. There will be a graph as it's usually non-linear. It doesn't start at zero as you need a minimum current through the LED for anything to happen. Better allow a bit more than minimum though as your "24v" might be 19v in reality. :(