Principle:
The instrument adopts the NH3-N reaction of Nessler's reagent and dissociative NH3 or Ammonium ion generates yellow-brown complex. The NH3-N concentration will be calculated by the single-chip computer and the optical colorimetry as the complex color depth is proportional with the concentration of NH3s-N. It’s widely used in the measurement of surface water, industrial waste water and sewage.
Technical Parameter:
1. Measure Range: 0.02~10mg/L(can be diluted if exceeds 10mg/L)
2. Accuracy: ≦±3%(F.S)
3. Lowest Detectable Limit: 0.01mg/L
4. Repeatability: ≦±2%
5. Absorptance Drift ≤0.001A /10min
6. Dimension: 282mm×237mm×102mm
7. Weight: 2.2kg
8. Operating Condition:
⑴ Operating Temperature Range: 5~40℃
⑵ Relative Humidity: ≤85%
⑶ Power Supply: AC(220±22)V;（50±0.5）Hz
⑷ No obvious vibration and electromagnetic interference, avoid direct sunlight.
Features:
1. V/F conversion, digital filter and other technology, excellent stability and anti-interference ability.
2. Adopt the national standard method; NH3-N content is displayed directly.
3. High efficiency and accuracy, the whole experiment only needs 10min.
4. Auto-save each parameter if power failure.
5. Single buttom and easy operation.
