Water Temperature Technical Parameters

1. Measurement principle: A temperature sensor is used.

2. Measurement range: -5~60°C

3. Accuracy: ±0.5°C

4. Resolution: 0.1°C

5. MTBF: ≥720 h per occurrence

6. Output signal: 4–20 mA, RS-485/232

pH Technical Parameters

1. Test principle: Glass electrode method

2. Measurement range: 0.00–14.00 pH

3. Repeatability: within ±0.01 pH

4. Resolution: 0.01 pH

5. Temperature Compensation: Automatic temperature compensation function

6. Function: Features electrode self‑diagnosis to detect damage to the glass electrode.

7. MTBF: ≥720 h/cycle

8. Comparison test with actual water samples: within ±0.1 pH units

9. Output signal: 4–20 mA, RS-485/232

Dissolved Oxygen Technical Specifications

1. Measurement method: membrane electrode method or chemiluminescence method

2. Measurement range: 0.00 ~ 20.00 mg/L

3. Repeatability error: ±0.3 mg/L

4. Resolution: 0.05 mg/L

5. Response Time: 90% confidence level ≤ 60 s

6. Temperature Compensation: Automatic temperature compensation function

7. Drift: ≤0.3 mg/L

8. Function: Equipped with an electrode self‑check feature. The membrane electrode method can…

Detect membrane damage and electrolyte leakage.

9. Real-water sample comparison test: ±0.3 mg/L

10. MTBF: ≥720 h/cycle

11. Output signal: 4–20 mA, RS-485/232

Electrical Conductivity Technical Parameters

1. Test principle: electrode method

2. Measurement range: 0–20 mS/cm, with automatic range switching.

3. Repeatability error: ±1%

4. Resolution: ≤0.1 μS/cm

5. Temperature Compensation: Automatic temperature compensation function

6. MTBF: ≥720 h/cycle

7. Output signal: 4–20 mA, RS-485/232

8. Real‑world water sample comparison test: ± 10%

9. Drift: ±1%

Turbidity Technical Parameters

1. Testing principle: The 90-degree scattering method is employed.

2. Measurement range: 0–4000 NTU, with automatic range switching.

3. Repeatability error: ±5%

4. Resolution: 0.01 NTU

5. Functions: Equipped with self-diagnosis and automatic cleaning functions.

6. MTBF: ≥720 h/cycle

7. Output signal: 4–20 mA, RS-485/232

8. The relative error in the comparative experiment with actual water samples is ≤10%.