Detail Ammonia Nitrogen Type CHM-301 COD
Multiparameter Water Quality Meter
COD Ammonia Nitrogen CHM-301
Principle:
The instrument can be directly determine the concentration of COD, Ammonia Nitrogen and Total Phosphorus in water samples. The determination method of COD is Fast Digestion Optical Method; The determination method of Ammonia Nitrogen is Mrs. Pay Reagent; The determination method of Total Phosphorus is Phosphorus Molybdenum Blue Method. The Instrument adopts advanced cold light, narrowband interference technique and microcomputer automatic processing data, directly display the density of samples.
Technical Specifications:
1. Measuring Range:
COD (abbr. Chemical Oxygen Demand): 10~2000mg/L (Two ranges: 10~200 mg/L,200~2000 mg/L);
NH3-N (abbr. Ammonia Nitrogen): 0.02~10mg/L;
TP (abbr. Total Phosphorus): 0.00~20mg/L
2. Precision:
COD: ≤±5 %, NH3-N: ≤±3 %( F.S), TP: ≤±5 %( F.S)
3. Repeatability: ≤±3%
4. Anti-Chlorine Interference: ≤1200mg/L(COD)
5. Temperature Control System:
Set Range: room temperature~180º C;
COD digestion temperature: 165℃;
TP digestion temperature: 120℃
6. Temperature Precision: ±0.5℃
7. Digestion Time: COD 10min, TP: 30 min
8. Wavelength: 610nm(COD), 420nm(NH3-N), 610 nm(TP)
9. Optical Stability: absorb shift ≤0.002A /20min
10. Power Consumption: <500W
11. 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.
12. Sample Quantity: 16/25/36(selectable)
13. Weight: 4 kg
14. Dimensions:
Main Unit: 266mm×200mm×130mm
Digester (DIS-16 type): 216mm×320mm×146mm
