The SWQ-ISNA in-situ nutrient analyzer is an online analyzer designed for underwater in-situ nutrient monitoring, capable of rapidly measuring inorganic nutrients and other chemical components in lake, river, estuary, and coastal waters in real time. Based on the latest Sequential Injection Analysis (SIA) technology and standard colorimetric principles, this analyzer can quickly, accurately, and in-situ measure dissolved nutrient components at trace concentration levels in water with minimal sample and reagent consumption.
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In-situ Nutrient Analyzer (SWQ-ISNA)
Negotiable
China
Building T1, Herui Science and Technology Park, Binjiang District, Hangzhou, Zhejiang Province
0571-81956003/15322470159
+86 15030396095
market@shallow-sea.com
Product Introduction
Product Parameters
| Measurement Component | Nitrite | Nitrate | Phosphate | Ammonium |
| Measurement Method | Naphthylethylenediamine, colorimetric method | Cadmium column reduction - naphthylethylenediamine colorimetric method | Phosphomolybdenum blue method | Salicylic acid colorimetric method |
| Linear Range | 0-0.2mg/L (as N) |
0-0.5mg/L (as N) |
0~0.5mg/L (as P) |
0~0.6mg/L (as N) |
| Detection Limit | 0.002mg/L (as N) |
0.005mg/L (as N) |
0.005mg/L (as P) |
0.005mg/L (as N) |
| Accuracy | ≤10% | ≤10% | ≤10% | ≤10% |
| Repeatability | ≤3% | ≤3% | ≤3% | ≤3% |
| Operating Temperature | 5~45℃ | |||
| Communication Method | RS485 (RS232 optional) | |||
| External Interface | 6-pin watertight submersible cable for device power supply and data communication Includes one spare expansion interface |
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| Maintenance Cycle | Up to 2 months, depending on measurement interval, ambient temperature, etc. | |||
| Sampling Interval | 1~24h adjustable | |||
| Housing Material | PVC | |||
| Power Supply | 9~24V, powered via watertight cable | |||
| Power Consumption | 10W (sampling), 4W (standby) | |||
| Weight | 13kg (excluding reagents) | |||
| Dimensions | Analyzer: diameter 220mm, height 445mm (excluding handle) Reagent rack: diameter 220mm, height 205mm |
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