Certificate number CCAEPI-EP-2008-106

application
It can monitor the concentration of ammonia nitrogen in the water of rivers, lakes, surface water, tap water plants, sewage treatment plants and water discharged by industrial and mining enterprises.

Main features
1.Touch screen display, Chinese operating interface, easy to operate and less maintenance workload
2.It has automatic constant temperature control device to keep the solution under test at the appropriate temperature
3.It has functions such as automatic cleaning, calibration, measurement, recording and measurement results storage, and has power-off protection function
4.Each functional parameter can be adjusted appropriately according to different requirements, and the sampling cycle of the sampling pump can be set arbitrarily
5.Isolated output (4～20)mA DC signal, corresponding to the output lower limit and output upper limit of ammonia nitrogen concentration
6.Alarm with adjustable upper and lower limits
7.have RS-232 or RS-485 Communication interface

Technical data
1.Measurement range:
0.05mg/L～0.99mg/L、1.00mg/L～9.99mg/L、10.0mg/L～99.9mg/L、100mg/L～1000mg/L
2.Intermittent measurement interval time: 1 h～12h
3.Display value error limit: ±10%
4.Repeatability: The relative standard deviation is not greater than 3%.
5.stability: ≤10%/4h
6.Response time (T90)：≤5min
7.Normal working conditions of the instrument
a)  Ambient temperature: (0～40)℃；
b)  Relative humidity: not more than 80%；
c)  Power supply: AC voltage (220±22)V， frequency (50±1)Hz；
d)  No corrosion gases exist in the surrounding air；
e)  No vibrations affecting performance exist around；
f)  There is no other electromagnetic field interference in the surrounding area that affects performance except the geomagnetic field.
9. External dimensions (long ×Width ×high )：600×450×1607mm
10. Weight: about 50 kg
11. Sampling requirements: (5 ～10）m3/h；（0.2～0.4）bar
12. Allow sampling pH Value: (5 ～9）pH The acidified standard solution or sample must be adjusted to
（5～7）pH