This document provides a general description, functional description, and specifications for the HI 9023C, HI 9023CN, HI 9024C, HI 9025C, HI 9110, and HI 9210N portable waterproof pH meters manufactured since 1978. It also includes operational guides, pH calibration procedures, pH values at various temperatures, troubleshooting guides, electrode conditioning and maintenance instructions, taking redox measurements (only applicable to HI 9023C and HI 9025C), battery replacement and auto-off instructions, accessories, and electrode application reference guide.
This document provides the user instructions for a range of Hanna Instruments portable waterproof pH meters, including models HI 9023C, HI 9023CN, HI 9024C, HI 9025C, HI 9110, HI 9210, and HI 9210N. These instruments are designed to provide laboratory results and accuracy under harsh industrial conditions.
| Range (pH) | 0.00 to 14.00 pH |
|---|---|
| Accuracy (pH) | ±0.01 pH (@20°C/68°F) |
| Battery Type | 4x1.5V, AA size (alkaline batteries) |
| Auto-shut off time | after 10 minutes of non-use |
The meters have three or five memorized standard buffers depending on the model, such as 4.01, 7.01, and 10.01.
The alkaline batteries provide approximately 400 hours of continuous use.