Technical Specifications

1. Methodology: Spectrophotometric assay.

2. Measurement range: 0–50 mg/L

3. Accuracy: not exceeding ±5% or not exceeding ±0.02 mg/L.

4. Repeatability: not more than ±5% or not more than ±0.02 mg/L.

5. Measurement cycle: The minimum measurement cycle is 20 minutes; depending on the site conditions, the color development time can be adjusted within the range of 5 to 120 minutes.

6. Sampling period: adjustable time interval (10–9,999 minutes) and on-the-hour measurement mode.

7. Calibration interval: Adjustable at any time, with intervals ranging from 1 to 99 days.

8. Maintenance frequency: once per month.

9. Reagent consumption: less than 0.1 yuan per sample.

10. Display: 10-inch color screen, 1024×600 resolution, 16.77 million true colors

11. Output: RS-232, 4–20 mA (optional).

12. Communication Protocol: Modbus RTU, New National Standard Protocol, Dynamic Control Protocol, and others.

13. Environmental Requirements: Indoor environment with adjustable temperature; recommended temperature range: +5 to 28°C; relative humidity ≤ 90% (no condensation).

14. Power supply: AC 220±10% V, 50±10% Hz, 5 A.