With the years of experiences on process analysis and environmental monitoring instrument development, the Focused Photonics Inc has developed the NH3N-2000 series ammonia nitrogen online analyzer, which is a new generation in the world. The instrument is designed for automatic ammonia nitrogen monitoring on several types of water matrix. Such analyzer adopts advanced sequential injection platform, combining with national standard detection method, which ensures reliable and accurate results. With high level of robustness in the electronics, mechanics and hydraulics components, the analyzer requires very little maintenances. The analyzer provides multiple standard interfaces, which are easy to combine other available instruments, such as flowmeter, pH meter, etc, therefore remote monitoring can be achieved.
The analyzer can be equipped selectively with corresponding pretreatment system for thoroughly meeting the demands of various working conditions and various customers.
High reliability, low maintenance;
Accurate measurement, wide applicable scope;
Safe operation, efficient analysis.
Based on the standard method and new technical platform, the ammonia nitrogen which exits as the form of free ammonia ions in samples and the Nessler’s reagent will react to produce yellowish brown complex in the alkaline medium.
The reaction product will be measured with a colorimeter and the absorbance is proportional to the ammonia nitrogen concentration in the sample.
|Measuring Principal||Colorimetric, Nessler’s reagent method||MTBF||≥720h every time|
|Measuring Range||(0~5) mg/L，(0~50) mg/L，(0~300) mg/L；(automatic bracket range, which can switch full-automatically)||Linearity||±0.2%|
|Zero Drift||±2% F.S/week||Repeatability||≤±3%F.S.|
|Range Drift||±2% F.S/week||Single measurement time||≤7min/pic|
|Clean, Zero adjustment form||Automatic/manual||Reagent||Offer reagent and its formula for per month’s analysis according to actual situation.|
|Clean, Zero adjustment Interval||Can set interval time optionally||Measurement Method||Continuous/Timed/ periodic|
|Maintenance period||3 months||Signal output||2 paths of 4-20mA output; RS-485/232|
|Data Storage||Realize data storage and query function||Analog Input||2 paths of 4-20mA input|
|Measurement Interval||Automatic measuring period for zero adjustment; can set continuously in 5,10,15,20,25,30 minutes||Function||Automatic two-point adjustment, automatic clean, self-diagnosis; can output alarm signal with reagent exhausted when reagent blocks the pipeline.|
Pollution source monitoring
Surface water monitoring
Industrial process water monitoring
Municipal wastewater monitoring