HI 8424 Portable pH/ORP Meter

[@moonscientific8989]

How I can calibrate ORP in 8424.Please inform.

[@HannaInc]

Hi Moon. A procedure for checking your ORP accuracy is different than your typical calibration like with a pH electrode. ORP electrodes do not need calibration with the meter such as pH. Still, ORP electrodes need to be conditioned prior to use. When the electrode is new, soak the tip in warm tap water. This will enhance the flow of the reference junction. To check function of the electrode, immerse the tip in ORP solution HI 7021L or HI 7022L. The reading should be +/- 50mV from the value indicated on the bottle. If the reading is not within the +/-50mV, oxidizing or reduction treatment with HI 7092 or HI 7091 is required. It will also prepare the electrode's surface and speed initial response time. Since in-line process electrodes are already in a solution, a simple test with either HI 7021L or HI 7022L will show you the electrode's condition. Should your probe not be accurate enough after conditioning & testing, follow the cleaning procedure.

[@ИгорьФедоров-ю5о]

Please show how to make calibration whith points 7,01 and 10,01. My 8424 can't do this -- write always "wrong".

[@DOROGA26]

Do you have istruction manual on russian language?

[@LEONARDKANAYI]

Where to access accessories eg cables

[@HannaInc]

Hi there! Are you looking to purchase additional cables for this device?

[@HannaInc]

Please visit the website for Hanna Russia, they will be able to help find a manual in Russian. Visit Hanna's website and click on Russia. It will direct you to the correct website.

[@mubeenrana3809]

Hanna Instruments, Inc. can you plz guide about HI 8424 ph meter guideline n service

[@triwihartarto9757]

how calibration my orp HI 3131 B?

[@HannaInc]

Hey Tri, There is no built-in mV calibration function for ORP electrodes on the HI8424. However, we do offer mV test solutions which can be used to quickly verify the proper function of your 3131B.

[@jorgeoliva1212]

Tengo un equipo de esos a alguien le interesa?

[@josechunga6601]

a mi

[@jorgeoliva1212]

@@josechunga6601 Hola José si te interesa tengo uno.