Home >> Products >> Online ammonia nitrogen analyzer
Online ammonia nitrogen analyzer
Technical data:
◆   Measuring range: (0-30) mg/l, (0-100) mg/l &(0-300) mg/l; these three ranges are available;
◆   Lower limit of detection: 0.02 mg/l;
◆   Resolution: <0.01 mg/l;
◆   Accuracy: <10% for standard solutions; 15% for water samples;
◆   Reproducibility: <5%;
◆   Digestion time: 20 min; adjustable;
◆   Trouble-free operation hours: ≧720 h;
◆   Range drift: ±5% F.S.;
◆   HMI: 7’’ 70000-color TFT true-color touch screen; resolution: 800*480;
◆   Print: Reserved printer interface to connect an external industrial micro-printer (optional);
◆   Storage: 20000 data; standard UPS to prevent loss of data in the case of power failure; automatic coverage of earliest data when the memory is full; (the memory with a capacity of 40000 data may be added;)
◆   Communication interface: One-channel RS232 digital interface or RS485; support the MODBUS communication protocol or self-defined protocol; 1-channel analog signal: 4-20 ma (with the range corresponding to 20 ma adjustable);
◆   Pretreatment system: Standard pretreatment system with such functions as auto cleaning, back flushing and precision filtration to ensure good representativeness of samples and avoid pipe blockage by large suspended particles (optional); it can be used separated from the main machine;
◆   Overall dimensions: 900*600*450 (mm);
◆   Weight: 50 kg;
◆   Power supply: AC220 V±20%, 50 HZ±1%;
◆   Power: 300 W；
◆   Ambient temperature: 5-40 °C;
◆   Ambient humidity: ≦85%;
◆   Measuring method: Alkaline potassium persulfate high-temperature digestion – spectrophotometric method (improved based on the method described in GB11894-89).