new KHD probe defective?

reeferisland · Oct 8, 2021

I just tried calibrating a new KHD probe I received today using the phone app, like I have always used, and am getting similar high readings for both the PH4 fluid, 65256, and the PH7 fluid, 65257. I rinsed the probe in RODI water and wiped it off before putting it in the calibration fluid. I am thinking the probe is defective or I am doing something really incorrect. The probe does say KHD on the probe. My KHD director has been down all week. Very frustrating!

Billldg · Oct 8, 2021

Make sure you have it plugged into the KHD and not the doser that feeds the KHD. I had one do the exact same thing and I found out that I plugged the probe into the doser and not the KHD. As soon as I change it, it started to read correctly.

reeferisland · Oct 8, 2021

Billldg said:
Make sure you have it plugged into the KHD and not the doser that feeds the KHD. I had one do the exact same thing and I found out that I plugged the probe into the doser and not the KHD. As soon as I change it, it started to read correctly.

I checked and it is plugged into the KHD.

Billldg · Oct 8, 2021

@Vinny@GHLUSA , @Ditto

Vinny@GHLUSA · Oct 8, 2021

reeferisland said:
I just tried calibrating a new KHD probe I received today using the phone app, like I have always used, and am getting similar high readings for both the PH4 fluid, 65256, and the PH7 fluid, 65257. I rinsed the probe in RODI water and wiped it off before putting it in the calibration fluid. I am thinking the probe is defective or I am doing something really incorrect. The probe does say KHD on the probe. My KHD director has been down all week. Very frustrating!

Open a ticket so we can help you one-on-one. If you already did, provide the ticket number and I'll jump on an assist.