The PHS-320 is a high‑precision, tabletop pH meter with 0.001 pH and 0.01 mV resolution, multiple measurement modes, and a large internal memory for up to 100 000 records. It can be equipped with an optional printer and supports GLP‑compliant reporting formats.
This user manual guides users through safety measures, installation, interface connections, configuration of pH, mV, temperature compensation, measurement modes, data storage, serial communication options, and routine maintenance. It also includes a selection guide, accessories list, and warranty information. This manual is written in Chinese.
| pH resolution | 0.001 pH |
|---|---|
| mV resolution | 0.01 mV |
| Data storage capacity | up to 100,000 records |
| Power supply | 9 V DC, inner‑positive outer‑negative |
| Measurement modes | Real‑time, automatic fast, automatic medium, automatic slow, timed |
After purchase, use the WeChat public account “方舟仪器” and select “在线服务申请” to submit a request; the warranty is extended from one year to three years for the main unit.
Press the “Mode” key on the front panel to cycle through the available measurement modes.
Insert the 9 V DC adapter into the power port and ensure the voltage matches the rating printed on the adapter.