The DDS-11A conductivity meter measures water solution conductivity with IP54 protection, a large LCD, and manual temperature compensation.
The DDS-11A conductivity meter from Shanghai Instrument is designed for measuring the conductivity of aqueous solutions in industries such as petrochemical, biomedicine, wastewater treatment, environmental monitoring, and mining, as well as in research labs. It features a new exterior design, a large LCD display, IP54 protection, display of conductivity constants, data stability indicators, and manual temperature compensation.
The manual covers safety instructions, terminology, instrument structure and installation, operation procedures (including power on/off, setting functions, electrode constant setup, and measurement), maintenance, troubleshooting, and technical support. Appendices provide calibration procedures for electrode constants and recommended accessories. This manual is written in Chinese.
| Conductivity range | 0.00 µS/cm to 100.0 mS/cm |
|---|---|
| Minimum resolution | 0.01 µS/cm (auto range switch) |
| Electronic unit reference error | ±1.5 % (FS) |
| Electronic unit repeatability | 0.5 % (FS) |
| Instrument reference error | ±2.0 % (FS) |
| Instrument repeatability | 1.0 % (FS) |
| Temperature range (manual) | 0.0 °C to 60.0 °C |
| Operating environment temperature | 0 °C to 40 °C |
| Relative humidity (max) | 85 % |
| Dimensions (L×W×H) | 200 mm × 160 mm × 63 mm |
| Power supply | AC 100‑240 V → DC 9 V |