This manual describes the features, specifications, and operation of the Sanxin MP512 precise pH meter. It covers hardware description, LCD indicators, key functions, data storage, RS232 communication, and accessories included with the instrument.
Detailed procedures for pH measurement, mV/ORP measurement, electrode calibration, parameter settings, and troubleshooting are provided, along with warranty information and safety certifications. This manual is written in Chinese.
| pH measurement range | -2.000 ~ 19.999 pH |
|---|---|
| pH resolution | 0.1 / 0.01 / 0.001 pH |
| pH accuracy (electrode) | ±0.002 pH |
| Input current | ≤1×10⁻¹² A |
| Input impedance | ≥3×10¹² Ω |
| Temperature compensation range | 0 ~ 100 °C |
| mV measurement range | -1999.9 ~ 1999.9 mV |
| mV resolution | 0.1 mV |
| mV accuracy | ±0.03 % FS |
| Temperature measurement range | -10 ~ 110 °C |
| Temperature accuracy (0‑60 °C) | ±0.4 °C |
| Data storage capacity | 600 measurement sets |
| Power supply | DC 9 V / 300 mA |
| Communication interface | RS232 |
| Dimensions | 160 × 190 × 70 mm |
| IP rating | IP54 |
| Certifications | ISO9001:2000, CE, CMC |
The instrument provides a pH accuracy of ±0.002 pH when using the supplied electrode.