New Apex Trident alk testing off help

Fredrxn · Jan 16, 2022

Hello guys I got my Apex trident on Wednesday and I Calibrated it yesterday with the Calibration fuild...calibration fuild said on bottle dkh 8.40 Cal 465 and mag 1265... After calibration complete it I ran test and all test came back good besides alk was saying 8.06 dkh...so I tested with hanna checkers and alk was 8.90 dkh.....so. I decided to calibrate with tank water....and now the Apex reporting dkh of 7.30 dkh....and Hanna is saying 8.90 dkh......maybe I got bad alk reagent?...what do.u guys think?

AJsReef · Jan 16, 2022

Two options here;

- Run a recalibration with the Apex cal fluid and use those values. Remember the key for Alk is stability so 8.1 or 8.9 as a base value won’t make a huge difference. The cal fluid is a standard with known values so theoretically produces the most accurate results in this scenario.

- If you want your apex to be aligned with your Hanna checker run a second calibration and see what happens. Technically speaking if you don’t have the Hanna Alk standards you can’t know for sure if the Hanna is accurate.

Fredrxn · Jan 16, 2022

AJsReef said:
Two options here;

- Run a recalibration with the Apex cal fluid and use those values. Remember the key for Alk is stability so 8.1 or 8.9 as a base value won’t make a huge difference. The cal fluid is a standard with known values so theoretically produces the most accurate results in this scenario.

- If you want your apex to be aligned with your Hanna checker run a second calibration and see what happens. Technically speaking if you don’t have the Hanna Alk standards you can’t know for sure if the Hanna is accurate.

I ran other calibration with tank water still the same thing alk it still reporting 7.38 dkh on Apex and Hanna checker is reporting 9.80 dkh

Fredrxn · Jan 16, 2022

Fredrxn said:
I ran other calibration with tank water still the same thing alk it still reporting 7.38 dkh on Apex and Hanna checker is reporting 9.80 dkh

Talking to Apex support as we speak

AJsReef · Jan 16, 2022

Do you still have your Apex calibration standard?

Fredrxn · Jan 16, 2022

AJsReef said:
Do you still have your Apex calibration standard?

Yeah I have the bottle but it's empty

Fredrxn · Jan 16, 2022

AJsReef said:
Do you still have your Apex calibration standard?

I guess this is why u read the instructions I did not know u had prime the simple line wen Calibrating.... So I’m assuming this is why It was throwing the alk off because it still had tank water in simple line...