Technical Specifications

1. Methodology: Spectrophotometric determination using the phosphomolybdenum blue method.

2. Measurement range: 0–10 mg/L total phosphorus (with ranges of 0.1–2.0 mg/L, 0.2–5.0 mg/L, and 0.5–10.0 mg/L).

10–500 mg/L total phosphorus (to be expanded).

3. Accuracy: not exceeding ±10% or not exceeding ±0.2 mg/L.

4. Repeatability: not more than ±5% or not more than ±0.2 mg/L.

5. Measurement cycle: The minimum measurement cycle is 30 minutes; depending on the characteristics of the actual water sample, the digestion 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 interval between 1 and 99 days, with the option to set the timing arbitrarily.

8. Maintenance Schedule: Typically once a month, with each session lasting approximately 30 minutes.

9. Reagent consumption: less than 0.50 yuan per sample.

10. Outputs: 2 RS-232 channels; 1 channel 4–20 mA.

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

12. Power supply: AC 230 ±10% V, 50 ±10% Hz, 5 A.