I have an error with the reference photodiode failing during self-test and am apprehensive about continuing with the calibration. Here is my error message:
self test test REF is lower than 0 dot 256 volts: Recorded 0.019 in REF, should ideally be between 0.02 and 0.500. Current IR LED: 70.0%.
Things I tried:
The leader has a different version, tried updating but failed, will post this issue as it reoccurs with a different group of pios.
Changing the ref photodiode out for a new one with no change in behaviour. I gather that this is a software issue in that case.
Changing the IR LED value to 90% in the config file offset the recorded value in REF slightly but did not eliminate the issue. Current settings following
Hm, that does seem low. Can you remove the IR LED, and inspect the “pocket” it sits in. Specifically, there is a small hole on the right-hand-side that leads to the REF PD. Can you make sure that doesn’t look deformed in any way?
I’m having issues with both photodiode on the self tests. I just installed a replacement the HAT on my pioreactor and since I have never had success on any self test relating to the photodiodes.
Is it possible there is something I need to do in the software since I’ve replaced the HAT?
I have double and triple check that the HAT has be installed correctly
(the stirring isn’t working since the new HAT, the “Pioreactor HAT is detected,” heating, and AUX power pass every time in the self test)
No software changes needed. Are the PDs in the correct position on the HAT (1 → REF, 2->90 usually). Check your config.ini’s section [od_config.photodiode_channel] to confirm.
With help from a coworker we realized the Model drop down menu wasn’t selected and must have reset to blank while we were working with the software in replacing the HAT I guess.
