Recently, I noticed that my KHD measurements were low.
When I checked against my Hanna, KHD was measuring about 1 dkH lower.
I recalibrated the KHD and was still getting a 1dkH difference.
I bought the GHL 7.5dkH reference to see if there really was an issue.
The KHD measured the 7.5dKH reference at 6.5dkH. Also a 1dkH difference.
I assumed the pH probe needed to be replaced and bought a replacement..
After recalibrating with the new probe, it still measured the 7.5dKH reference as 6.5dKH.
When I looked back at my history, it appears this issue may have started in late January.
Please advise.
When I checked against my Hanna, KHD was measuring about 1 dkH lower.
I recalibrated the KHD and was still getting a 1dkH difference.
I bought the GHL 7.5dkH reference to see if there really was an issue.
The KHD measured the 7.5dKH reference at 6.5dkH. Also a 1dkH difference.
I assumed the pH probe needed to be replaced and bought a replacement..
After recalibrating with the new probe, it still measured the 7.5dKH reference as 6.5dKH.
When I looked back at my history, it appears this issue may have started in late January.
Please advise.