This is a user manual for a laboratory pH meter, including overview, technical specifications, instrument description, operating methods, precautions, etc.
The Sanxin PHS-2C is a laboratory pH meter that measures pH, mV and temperature in water solutions. It features a large back‑lit LCD, dual‑slope automatic calibration and optional automatic temperature compensation with a PHT temperature electrode.
The manual provides a complete guide to instrument description, LCD functions, operation keys, socket connections, step‑by‑step measurement procedures, safety precautions, optional accessories and warranty information. This manual is written in Chinese.
| pH measurement range | 0~14.00 pH |
|---|---|
| pH resolution | 0.1/0.01 pH |
| pH accuracy (instrument) | +0.01 pH |
| pH accuracy (accessory) | +0.02 pH |
| mV accuracy | ±0.15 % of reading |
| Input impedance | >1×10^29 Ω |
| Stability | <0.01 pH/3 h |
| Power supply | DC 9 V via adapter |
| Dimensions | 160 × 190 × 70 mm |
| Operating temperature | 5~35 °C |
| Relative humidity | <85 % |
| pH electrode type | 201‑C plastic‑cased composite electrode |
| pH buffer solutions supplied | pH 4.00, 6.86, 9.18 (50 ml each) |