Innovate LC-1 Calibration Circuit LED

[quan3165]

Does anyone know the LED voltage I need for the LED in the calibration circuit on one of these? Trying to get it going tomorrow and don't want to wait on another one from Innovate.

Thanks a bunch.

Tyler Q

[cmonref]

From the LC-1 manual, page 5:

8. Optionally connect a indication LED (1.2-2.2V, 1-30mA is recommended) between the
calibration wire and ground.

Hook the calibration wire to the anode. The cathode goes to ground. Therefore, the LED gets its power (and signal) from the calibration wire. You don't need to supply any other voltage.

[quan3165]

I must have missed that part of the manual. Exactly what I was looking for. Thank you, Brian.