Multi Parameter Water Quality Analyzer ADMWA-502 offers highly accurate measurements with an indication error of ≤±5%. It detects COD, phosphorus, ammonia and total nitrogen content across a wide measurement range. Operating at a wavelength of 420 or 620nm, this unit ensures consistent and reliable readings. With a compact and lightweight design, it provides simple operation. Our Water Quality Analyzer are reliable and ideal for use in agriculture, water quality monitoring and aquaculture industries.
| COD Test Method |
Potassium dichromate method Alkaline potassium permanganate |
| COD Measuring Range |
10 to 15000mg/L 0.5 to 25mg/L |
| COD Test Limit |
10mg/L 0.5mg/L |
| COD Digestion Temperature |
165℃ 20min 100℃ 30min |
| Ammonia Nitrogen Test Method |
Salicylic acid method Nesslers reagent |
| Ammonia Nitrogen Measuring Range |
0.02 to 50mg/L 0.05 to 100mg/L |
| Ammonia Nitrogen Test Limit |
0.02mg/L 0.05mg/L |
| Ammonia Nitrogen Digestion Temperature | N/A |
| Total Phosphorus Test Method | Ammonium molybdate |
| Total Phosphorus Measuring Range | 0.02 to 20mg/L |
| Total Phosphorus Test Limit | 0.02mg/L |
| Total Phosphorus Digestion Temperature | 150℃ 15min |
| Total Nitrogen Test Method | Thymol crystals |
| Total Nitrogen Measuring Range | 0.5 to 500mg/L |
| Total Nitrogen Test Limit | 0.5mg/L |
| Total Nitrogen Digestion Temperature | 125℃ 30min |
| Indication error | ≤±5% |
| Repeatability | ≤±3% |
| Data Storage | 3000 sets |
| Wavelength | 420nm/620nm |
| Light Source Life | 100,000 hour |
| Filter Life | Five years |
| Battery | No. 5 battery 1.5V*2 |
| Operating Temperature | 0 to 50°C |
| Relative humidity | 0 to 90% (non-condensing) |
| Dimension (L×B×H) | 90×70×125 mm |
| Weight | 300g (including battery） |
Our Multi Parameter Water Quality Analyzer are extensively utilized in wastewater treatment plants, agriculture, aquaculture, environmental monitoring industries and research laboratories to provide reliable and precise results.
| Indication Error | ≤±5% |
| Repeatability | 0.03 |
| COD Detection Method | Potassium dichromate method, Potassium permanganate method |
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| Absorbance Detection Range | 0 to 3Abs |
| Optical Path Stability | ≤±0.005Abs/30min |
| Absorbance Resolution | 0.001Abs |
| COD Detection Method |
Potassium dichromate method Potassium permanganate method |
| COD Measuring Range | 10 to 15000 mg/L |
| COD Lower Limit of Measurement | 3 mg/L |
| COD Range: | 0 to 10000 mg/L (Customized) |
| Principle: | UV 254 |
| Resolution: | 0.01 mg/L |
| Dissolved Oxygen Measuring Range: | 0 to 20 mg/L |
| Saturation Measuring Range: | 0 to 200% |
| Temperature Measuring Range: | 0 to 50℃ |
| Dissolved Oxygen Concentration Measuring Range: | 0 to 20 mg/L |
| Dissolved Oxygen Concentration Resolution: | 0.01 mg/L |
| Dissolved Oxygen Concentration Accuracy: | ≤±0.30 mg/L |
| Dissolved Oxygen Measuring Range: | 0 to 20mg/L；0 to 200% |
| Resolution Ratio: | 0.01mg/L；0.1% |
| Measurement Accuracy: | 0.05mg/L;0.5% |
| Test Parameter: | Total Chlorine |
| Measuring Range: | 0.05 to 10 mg/L |
| Wavelength: | 520 nm |
| Test Parameter: | Ammonia nitrogen |
| Measuring Range: | 0.01 to 10mg/L |
| Wavelength: | 420 nm |
| Test Parameter: | Ozone |
| Measuring Range: | 0.05 to 2.5mg/L |
| Wavelength: | 520 nm |
| Test Parameter: | Residual Chlorine |
| Measuring Range: | 0.05 to 10 mg/L |
| Wavelength: | 520 nm |
| Test Parameter: | Chlorine dioxide |
| Measuring Range: | 0.1 to 5 mg/L |
| Wavelength: | 520 nm |
| Measuring Range: | 0 to 1000 NTU (Selectable ranges: 0 to 20 NTU, 0 to 200 NTU, 0 to 1000 NTU) |
| Accuracy: | ±0.1NTU or ±5%<br/> ±0.3NTU or ±8% |
| Repeatability: | ≤±0.1NTU at＜10NTU<br/> ≤±1% at ≥10NTU |
| TSS Measuring Range: | 0.1 to 50000 mg/L |
| TSS Accuracy: | ± 5% FS (depending on the homogeneity of the activated sludge) |
| TSS Repeatability: | <1% |
| TSS Measuring Range: | 0 to 1000mg/L |
| TSS Accuracy: | ±0.3mg/L or ±8% |
| TSS Repeatability: | <10mg/L: ≤±0.1mg/L <br/>≥10mg/L: ≤±1% |
| TDS Range: | 0 to 9999 ppm |
| Conductivity Range: | 0 to 9999 μS/cm |
| Temperature Range: | 0 to 80℃ or 32 to 176℃ |
| Measuring Range: | 0 to 10% |
| Measuring Temperature Range: | 0 to 99℃ |
| Resolution: | 0.01%，0.1℃ |
| Temperature Control Range: | Room temperature to 180℃ |
| Digestion Temperature Range: | 50 to 180℃ |
| Temperature Control Accuracy: | ±0.1℃ |
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| Temperature Control Range: | 45 to 180℃ |
| Digestion Temperature: | 45 to 180℃ |
| Temperature Control Accuracy: | ±0.1℃ |
| pH Measuring Range: | -2 to 16 pH |
| pH resolution: | 0.1pH |
| pH indication error: | ±0.2% F.S. |
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| ORP Measuring Range: | -1000mV to 1000mV |
| ORP Resolution: | 1 mV |
| ORP measurement Accuracy: | ±0.5% F.S. |
| pH Measuring Range: | 0 to 14 pH |
| pH Resolution: | 0.041 pH |
| pH Indication Error: | ±0.02 pH |
| pH Measuring Range: | 0 to 14pH |
| pH Resolution: | 0.01pH |
| pH Measuring Accuracy: | ±0.01pH |