How to get accurate KH Director readings

[Basshoven]

I want to comment here.
Actually you don't need to "fine-tune" the doser calibrations. If the calibrations are perfect (see our support page / knowledge base how to do that) you will get perfect results.
If not there might be somewhere else a problem, there is a KHD troubleshooting guide on our support page.

If you still don't get the readings you expect you should rather use the "adjustment" setting to correct the show readings.

Hi matthias,

I have installed 3 khds, but was really struggeling on all 3 of them.
I thought it would get easier after doing it before, but sadly i was wrong.
I guess I followed the guidelines, (watched the instructions of the ghl YouTube videos and some other videos of khd users),but got strange measurements.

Playing with the pump heads got me close to the actual ghl ref. 7.5 value.
After some use I found out this wasnt the solution as the value of the reagent and waste water levels wasnt displayed correct anymore.

So today I resinstalled the setup once again.
I know 100% sure the pump heads are calibrated on actual values.
I've weighed ro water on a high precision scale and did that at least 5 times per pump head.
Pumphead 1 and 2 I did even more.
Pumphead 3 I just kept an eye on If it emptied the khd after flushing and at end of the test.
This gave me a constant measurement way below the 7.5 dkh of ghl reference.
I cant remember the exact value but it was everytime the same value within 0.1 dkh.
The solution was a measurement correction of 17% to get the measurement spot on 7.5 dkh.
Tomorrow I will sent in an ICP test to compare the result of that with the khds.

Please let me know if there is a better way to install the khd??
as I need to do this again shortly with another khd at a friend.
And probably the same will apply to the ion which I have in preorder.
The way I do it costs also a lot of refence fluid and reagent which isnt cheap.
To calibrate 3 khds i used almost 1 liter of reagent and 3 liter of reference fluid.
This should be done easier, right?