User manual for the Sanxin SX716 dissolved oxygen meter, covering setup, calibration, operation, and specifications.
The SX716 dissolved oxygen meter from Sanxin is a portable instrument for high‑precision measurement of dissolved oxygen and temperature in water solutions. It features an integrated microprocessor, automatic calibration, temperature and salinity compensation, and an IP57‑rated housing suitable for field and industrial use.
The manual provides a complete overview of the device, technical specifications, detailed instructions for measurement, calibration procedures, data storage, and maintenance guidelines, along with tables for oxygen saturation under varying conditions. This manual is written in Chinese.
| Measurement range | 0–40.00 mg/L (ppm) / 0–200.0 % |
|---|---|
| Resolution | 0.1/0.01 mg/L (ppm) 1/0.1 % |
| Accuracy | ±0.10 mg/L (electric) / ±0.40 mg/L (with kit) |
| Response time | ≤30 s (25 °C, 90 % response) |
| Temperature compensation range | 0–45 °C (automatic) |
| Salinity compensation range | 0–45 ppt (automatic) |
| Pressure compensation range | 66–200 kPa (manual) |
| Data storage capacity | 100 measurement sets |
| Power supply | 2 × AA 1.5 V batteries |
| Dimensions (instrument) | 65 × 120 × 31 mm |
| IP protection rating | IP57 |
| Certifications | ISO9001:2000, CE, CMC |
The instrument can store up to 100 sets of measurement information.
It is powered by two AA batteries, each 1.5 V.
The device meets the IP57 dust‑proof and waterproof rating.
The electrode requires 3 to 5 minutes of polarization before calibration.