User manual for the Jenco MODEL 3250M water quality tester covering operation, calibration, data storage, and specifications.
The Jenco MODEL 3250M is a portable water‑quality testing instrument that measures conductivity, TDS, salinity and temperature. The manual explains how to power the device, navigate the LCD display, and interpret measurement results.
Key functions include autoranging (AUTO) and manual (MAN) modes, calibration procedures, data saving/retrieving, and RS‑232 communication. Safety, battery replacement, and warranty information are also provided. This manual is written in Chinese.
| Conductivity range | 0.000 to 9.999 µS/cm |
|---|---|
| TDS range | 0.300 ~ 1.000 |
| Salinity range | 0.0 to 80.0 ppt |
| Temperature range | -10.0 to 120.0 °C |
| Power supply | 9VDC, 100 mA |
| Dimensions (W×H×D) | 222 mm × 71 mm × 83 mm |
| RS‑232 baud rate | 4800 bps |