KH Director and ALK spikes

[mwilk19]

Hello,
I recently switched to the Triton Method so I have my KH Director only monitoring my ALK. Recently, I get an occasional large spike shown on the KH Director and then it reverts back to normal. If I test ALK using the Hanna checker it shows a normal reading. I've recalibrated multiple times. My KH Director PH probe is about 15 months old. Is this most like caused by the probe going bad?

 

[pigmo]

bump

 

[mwilk19]

Just as an update. I replaced the PH probe in my KH Director last month as it was becoming erratic. Even with the new probe I still get occasional spikes. Mostly the readings are pretty steady.

 

[TCoach]

Have you opened a ticket with GHL? Maybe @Vinny@GHLUSA can help.

 

[mwilk19]

Have you opened a ticket with GHL? Maybe @Vinny@GHLUSA can help.

I haven't. It happens about every 2 days for just one sample. I know it's not accurate because there's no way it could jump from 8.0 to 10.0 and then back to normal in a four hour cycle. It's better since I replaced the probe.

 

[KGV]

Hello,
I recently switched to the Triton Method so I have my KH Director only monitoring my ALK. Recently, I get an occasional large spike shown on the KH Director and then it reverts back to normal. If I test ALK using the Hanna checker it shows a normal reading. I've recalibrated multiple times. My KH Director PH probe is about 15 months old. Is this most like caused by the probe going bad?

Are you sure there are no occasional air bubbles in the reagent line? That could explain these upward bumps.

 

[mwilk19]

Are you sure there are no occasional air bubbles in the reagent line? That could explain these upward bumps.

I replaced the PH probe for the KH Director about a week after I posted this. It now only happens occasionally. When it does I just ignore it. I don't see any bubbles in the line but it doesn't mean that it doesn't happen.