
-Overview-
The MDS-3T (RS485) is a multi-parameter sensor specifically designed for online measurement of ammonia nitrogen and nitrate nitrogen. The sensor uses the ion electrode method, so users only need to immerse the sensor in the water sample to directly read the ammonia nitrogen and nitrate nitrogen values. The sensor incorporates a built-in temperature sensor (Pt100) and two ion electrode interfaces (1 for ammonia nitrogen or nitrate nitrogen, and 2 for pH).
-Benefits & Features-
Economical and Reliable:
- No sample pretreatment required; direct measurement of ammonia nitrogen and nitrate nitrogen.
- pH measurement is standard.
- Advantages: No reagents required, low operating cost.
Flexible use and wide application range:
- Wide measurement range:
0.1-1000 mg/l NH4-N or 0.5-1000 mg/l NO3-N
Simple and Safe Operation
- Direct installation at the pool edge; no need for a collector or sample transfer pump.
- Replace the membrane cap every 6 months to effectively extend electrode lifespan.
- Standardized digital communication; plug and play.
-Technical parameters-
Measurement Range | Ammonia nitrogen: 0.5-1000mg/L (NH4-N); Nitrous nitrogen: 1-1000mg/L (NO3-N); Free fluoride: 0.5-10000 mg/L (F); Free chlorine: 2.5-10000 mg/L (Cl); Free calcium: 1-2000mg/L (Ca) |
Size | Directly 32mm (maximum), length 166mm |
Working Life | 6 months (membrane), 3 months (electrolyte) |
Measurement Error | Measurement value: ±10% (laboratory) or ±0.5mg/L |
Response Time | < 2 min. |
Repeatability | ±10% of the displayed value |
Environmental Temperature | 0-40℃ |
Storage Temperature | 2-40℃ |
Protection Level | IP68 |
Cable | Standard 10-meter waterproof cable |
Instrument Power Consumption | Within 6W |

