How to Calibrate pH And EC on the HI98129 pH, Conductivity and TDS Tester

[@FREEDOMSYNDICATEOFFICIAL]

Best video on this!! Thank you!

[@paypay2125]

Is there a requirement for room temperature during pH calibration?

[@instrumentchoice]

Hi, thanks for your question. HI98129 can be calibrated in a normal ambient room temperature environment. As long as this is below 50c room temperature won't effect the calibration of the meter. I hope this helps answer your question.

[@MichaelJohnsonOlu]

I tried a EC calibration, it kept displaying 'WRNG'. Pls do you have an idea of what could be wrong?

[@instrumentchoice]

Hi Michael, Thank you for your question regarding the HI98129. “WRNG” would most likely display if you are trying to use the wrong value of calibration solution. What solution were you using?

[@eraykurtulus5213]

what liquid did u use at 1:40?

[@instrumentchoice]

@eraykurtulus5213, Thanks for your enquiry on the video, at that point of the video we are using pH4.01 buffer solution to do the pH calibration.

[@jethrosagun1440]

I'm pressing off but calibration is not showing

[@instrumentchoice]

Thank you for your enquiry on our KZbin video, on this, can you ensure you are in the standard measurement mode. Then from here, press and hold the “POWER/MODE” button, then “CAL” should display in the bottom left. If this doesn’t occur, please reach out to the team at [e-mail] and they will do all they can to assist.

[@paypay2125]

I tried but the pH remained 7.01, it didn't change to 4

[@instrumentchoice]

Hi, sorry to hear about your troubles. It may be best to email your issue directly to our team at [e-mail]. They will be able to help you sort out your issue.