How should ORP electrodes be stored?

Upon storage, the electrode should be stored wet in a storage solution or pH 4 buffer and rinsed periodically. ORP electrodes should not be stored in distilled or deionized water. The video below explains the two-point check system for calibrating an ORP electrode.

How do I Clean my PH or ORP electrode?

To clean your pH or ORP electrode use MA9016 Cleaning Solution in conjunction with MA9015 Storage Solution. In general, and depending on the frequency of use and the type of application, soak your pH or ORP electrode once per week in MA9016 Cleaning Solution for about 15 minutes.

Why should pH electrodes be stored in a solution?

To ensure a quick response and free-flowing liquid junction, the sensing element and reference junction must not be allowed to dry out. Properly storing your pH electrode in a solution keeps the glass membrane well hydrated which maintains proper function and provides accurate readings.

Can I store an electrode in distilled or deionized water?

Ideally a storage solution should be used; never store an electrode in distilled or deionized water. The Hanna Instruments storage solution is specifically formulated to minimize microbial growth and to prevent any effects of diffusion/osmotic from storing a probe in a solution with the highly concentrated inner reference electrolyte.

How do I Clean my pH electrode?

In the case of cleaning your pH electrode in one of our cleaning solutions, we recommend soaking the electrode in the HI70300L storage solution for at least one hour before taking measurements. This product is considered hazardous to ship and is subject to extra handling fees. This product is Freeze Sensitive. It incurs an extra shipping cost.