eVOLVER Forum

Issues with OD/temp measurements

The signal increases up to a certain extent, and then it decreases after the culture gets too dense and starts to decrease in value.

Here is an older post that gives more information:

@anupama You have the boards for it but the sensor on there was incorrect. You would have to switch it out with a different photodiode than what you have for it to work well.

One other note. The RAW values are inverted due to the design of the hardware. In other words, The higher the RAW value, the lower the signal (e.g. photodiode signal). I know its a bit confusing but its an important distinction.

Thanks for explaining that the drop in the OD values is because culture become too dense and it is hardware related. We were worried if it is because of something we did wrong during the calibration.

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