Digital Aquatics Archon ORP Probe Calibration

[bigzman]

Anyone here ever configure new ORP probe on Archon or have documentation on how to calibrate new ORP probes?

Does this still hold true:
ORP/pH "“ These inputs can be individually programmed to be either ORP or pH. When the Dip switch is set to the "œup" position, it is set for ORP. "œDown" sets the
port for pH.

I have read this http://digitalaquatics.com/downloads/Archon/Archon_Rev3.pdf but I remember the last time I got a orp probe 2 years ago DA support said Dip switch changes was not required anymore after a firmware update.

Instructions:
Change the channel name to "œORP" or your desired name, then click the "œSet port to ORP mode" box and click Save. Wait for the page to refresh (about 5 seconds).
ORP Calibration
 Click the Calibration Start button
 Confirm that you see only one set point, and that the target is 400, and that the Set port to ORP Mode box is checked
 Soak the ORP probe in the calibration solution for 20-30 minutes, then click the Copy button next to the "œ400" Target (this will copy the raw data numbers
into the Data box for you).
 Click Finish to write the data to the Archon unit. Calibration is complete.

 

[n2585722]

the ORP calibration was removed from the latest firmware. You can still use PortCalibrate() command but it has to have two points to do it that way.

 

[bigzman]

So am i out of luck on calibrating my new probe?

 

[n2585722]

You can using the port calibrate command on system page. You will need the raw data of the two calibration points. For point one you can use a bnc terminating resistor to get the 0 point raw data. Then hook the probe to the port and get the raw data in your calibration solution. I go over using this command in my build thread. I cannot post a link here but if you search for "Canopy and Stand Build for 42 Gallon Hex Tank" you should be able to find it. The port calibrate command starts at post #60. I have quite a bit of info on the Archon in the build thread. The reason DA removed the calibration from the ORP port is they decided it was close enough without calibration since most only use it to watch for a large change in the value. Hope this helps.