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Kentan
20.08.2020, 16:22
New setup and have been running for the past few days, constantly getting reading of 4.7dkh. I used a FM test kit, and it shows at 8dkh, did twice to make sure.

Did probe calibration three times, reagent bubble checked, sample water length measured twice. Dosing pump calibrated twice.

What else I could recheck to ensure I didn’t miss or did anything wrongly?
arking_mark
20.08.2020, 16:35
Make sure you calibate all 3 dosing pumps. I mistakenly didn't calibrate the waste pump...and was getting bad readings as well.
Kentan
20.08.2020, 19:02
Did dosing pump calibration for the fourth time, now it’s measuring at 4.9
arking_mark
20.08.2020, 19:07
The other thing I found is that you need to run a couple measurements before everything is working well. Look back at my initial start the fourth measurement on was steady and accurate.

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Kentan
21.08.2020, 12:02
Done all calibration again, same result range. What else I could do to troubleshoot?
arking_mark
21.08.2020, 13:48
Did you run the test several times after setup? Do you consistently get a number?

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Thilo
21.08.2020, 13:52
Maybe this article helps you to solve the problem: https://www.aquariumcomputer.com/knowledge-base/kh-director-tips-and-troubleshooting/
Kentan
21.08.2020, 15:27
Great stuff, will definitely try using the reagent as a marker.

On a sidetrack, only my pump 2 lights is off - but working fine. It will light up when it runs. Is that some indication of something?
Vinny
21.08.2020, 17:18
No, the backlight for the pump has little to do with the status of the pump head. Normally it is dimly lit when not in-use and becomes brighter when the head is running. Perhaps a cable has come loose which is causing this behavior.
Kentan
24.08.2020, 05:48
No, the backlight for the pump has little to do with the status of the pump head. Normally it is dimly lit when not in-use and becomes brighter when the head is running. Perhaps a cable has come loose which is causing this behavior.

Anyway to get this fix? I just got everything less than a month old.

12527
Thilo
24.08.2020, 09:22
Please open a ticket to get this problem solved: https://www.aquariumcomputer.com/support/tickets-enquiries/
Kentan
29.08.2020, 05:12
Maybe this article helps you to solve the problem: https://www.aquariumcomputer.com/knowledge-base/kh-director-tips-and-troubleshooting/

Did a few times back to back, including emptying the measurement cells. Result is 0dkh for the few times.
Kentan
31.08.2020, 17:49
Further troubleshooting and move to pump 4 for reagent, problem solved. Faulty pump 2 wasted my 500ml of reagent.