ORP Probe Calibration

[Simonv92]

Hi All,
I'm trying to calibrate my Atlas Scientific ORP probe in Reef-Pi. I have a 225mV calibration pouch but I don't know how to calibrate the probe with only 1 value in Reef-Pi.
I've already calibrated the ph probe using 7 and 10 pouch, but after the ORP calibration I have always a 225mV value so something went wrong. How can I do that?
Thank you very much!!
Simone

 

[Fish Styx]

Hi All,
I'm trying to calibrate my Atlas Scientific ORP probe in Reef-Pi. I have a 225mV calibration pouch but I don't know how to calibrate the probe with only 1 value in Reef-Pi.
I've already calibrated the ph probe using 7 and 10 pouch, but after the ORP calibration I have always a 225mV value so something went wrong. How can I do that?
Thank you very much!!
Simone

Don't bother and just use it as it came. ORP probe calibration is exceedingly difficult under laboratory conditions, let alone your living room floor. They work just fine, as is, for hobbyist purposes.

Happy reefing.

 

[Simonv92]

Thank you for your reply. without calibration reef-pi give me value of around 19300. I think that this is the raw value at the output of the Atlas Module...

 

[Fish Styx]

Thank you for your reply. without calibration reef-pi give me value of around 19300. I think that this is the raw value at the output of the Atlas Module...

mv?!

 

[Simonv92]

I don’t know, it’s the raw value read by the ADC and sent back to Reef-Pi.
With the ph probe I’ve calibrated the reading for ph 7 and ph 10 in Reef-Pi.
I want to do the same for the ORP using only the 225mV reference value, but I don’t know how to do a single point calibration in Reef-Pi

 

[Fish Styx]

I don’t know, it’s the raw value read by the ADC and sent back to Reef-Pi.
With the ph probe I’ve calibrated the reading for ph 7 and ph 10 in Reef-Pi.
I want to do the same for the ORP using only the 225mV reference value, but I don’t know how to do a single point calibration in Reef-Pi

Okay. Let's wait for a seasoned reef-pi user to weigh in here. Sorry I couldn't be more help.

 

[Sral]

I don’t know, it’s the raw value read by the ADC and sent back to Reef-Pi.
With the ph probe I’ve calibrated the reading for ph 7 and ph 10 in Reef-Pi.
I want to do the same for the ORP using only the 225mV reference value, but I don’t know how to do a single point calibration in Reef-Pi

Not sure that's even possible, but I have been out of the ReefPi game for a very long time ....

I'd personally try the probe dry first, calibrate that to 0 and then calibrate using the pouch for 225mV

IIRC you had to do that in one go with ReefPi

 

[Cow]

Thank you for your reply. without calibration reef-pi give me value of around 19300. I think that this is the raw value at the output of the Atlas Module...

Did you ever get to the bottom of this?

 

[Cow]

-wrong thread