Multi-parameter water quality analyzer
Linksens S-NH131 online ammonium nitrogen sensor is made of ammonium ion selective electrode based on PVC membrane , which is used to test the ammonium ion content in water. It has temperature compensation to ensure that the test is fast, simple, accurate and economical. This user manual introduces the technical parameters, use and maintenance, and communication protocol of the ammonium nitrogen sensor in detail.
· Signal output: RS-485 bus, Modbus/RTU protocol , convenient for connection to third-party devices such as PLC, DCS, industrial control computers, general controllers, paperless recorders or touch screens.
· Patented ammonium ion electrode, the internal reference solution seeps out of the microporous salt bridge very slowly under a pressure of at least 100KPa (1Bar). Such a reference system is very stable and the electrode life is longer than that of ordinary industrial electrodes.
· Easy to install: 3/4NPT pipe thread, easy to install in pipelines and tanks.
· IP68 protection grade.
Surface water, rainwater and sewage pipe network, freshwater aquaculture and etc
Model |
S-NH |
|
Shell material |
ABS, PVC, POM |
|
Measuring principle |
Ion Selective Electrode Method |
|
Range and resolution |
0～10.00 mg/L |
0.01 mg/L , 0.1℃ |
0～100.00 mg/L |
0.01 mg/L , 0.1℃ |
|
0～1000.0 mg/L |
0.1 mg/L , 0.1℃ |
|
Accuracy |
0～10.00 mg/L |
of reading or ±1 mg/L , whichever is greater, ±0.5℃ |
0～100.00 mg/L |
||
0～1000.0 mg/L |
±10% of reading ±0.5℃ |
|
Response time (T90) |
＜60s |
|
Minimum detection limit |
0.09 (0-10 mg/L and 0-100 mg/L ) |
|
0.9 ( 0-1000mg /L) |
||
Calibration method |
Two-point calibration |
|
Cleaning method |
/ |
|
Temperature compensation |
Automatic temperature compensation ( Pt1000 ) |
|
Output method |
RS-485 (Modbus RTU) , 4-20 mA ( optional) |
|
Storage temperature |
-5～ 65 ℃ |
|
Working conditions |
0 ～ 40 ℃ ， ＜ 0.1MPa ， 4 ～ 10 pH |
|
