NitraLyt Plus 700IQ Nitrous NO3-N Online Sensor

characteristic

• Three models
  -AmmoLyt ® PlusAmmonia nitrogen sensor
  - NitraLyt ® Plus： Nitrous nitrogen sensor
  - Varion® Plus： Ammonia nitrogen/Nitrogen nitrate two in one sensor

• No need to fill electrolyte and replace ion membrane

• Automatically compensate for the impact of interfering ions

• On site continuous monitoring sensor technology

• Quick response, no lag time

• Automatic monitoring of biochemical treatment process

• Multi directional monitoring of nitrogen removal process throughout the entire process

• Automatic air blowing system ensures long-term reliable operation

• Very economical and practical

• No need for calibration, good long-term stability

• No reagent consumption, low investment and maintenance costs

Automatically compensate for the impact of interfering ions

There are two main interfering ions: chloride ions can interfere with nitrate nitrogen testing; Potassium ions can interfere with the testing of ammonia nitrogen.10mg/lPotassium ions will approximately contribute0.7mg/lThe ammonia nitrogen reading,100mg/lChloride ions will contribute approximately0.7mg/lThe nitrate nitrogen reading. Ammonia nitrogen and nitrate nitrogen at low concentrations (less than)10mg/l）The measurement is more affected, therefore, additional chloride or potassium ion electrodes need to be selected to compensate for the interference of ions.

Calibration free testing

After installing the corresponding ion electrode,Ammolyt plus /NitraLyt plus /VARiON plus700 IQSensors can be tested immediately without calibration. If the requirements are strict, just follow themOn site water sample calibration "is sufficient, it is very simple, and the sensor does not need to be taken out of the water sample. Users only need to compare with the laboratory photometry method at regular intervals, and if there is any deviation, then perform "on-site water sample calibration". In addition to on-site water sample calibration, standard solutions can also be selected2Point correction (note: usually not required). Through calibration, the system automatically evaluates the performance of various electrodes2Individual performance indicators, namely drift potential and slope. If this2If the indicators fall within the permitted range, it indicates that the correction is successful. The scope of the license is
Slope:50…70 mVZero drift potential:-45…+45 mV.

System Introduction

oneComplete setAmmonia nitrogen/nitrateThe system is composed ofIQ SENSOR NETTransmitterSensor housing components, reference electrode, working electrode、IQCable lineComposed of air cleaning components. The above-mentioned components can be replaced easily, without the need to fill electrolyte or replace thin films! Automatic cleaning passed3－7The compressed air of Ba is realized by a dedicated systemMIQ/CHVThe solenoid valve control module is used to control the air circuit switch.

During testing, as long as the corresponding ion selective electrode is inserted into the corresponding socket of the sensor, the remaining work is automatically completed by the sensor. The instrument directly displays the correct test value, or you can choose to display the concentration value of interfering ions, such as potassium ion concentration. All test values can be obtained by simulating current0/4-20 mAOr digital interfacePROFIBUSperhapsMODBUSTransfer toPLCIn the system.

measuring principle

Ion selective electrode methodISEIn principle, the construction of the instrument can be relatively simple, and the measurement can achieve rapid response. However, when1991When the ammonia ion testing method appeared, it could only be applied to laboratory analysis because operators needed to have specific operating skills, strictly preprocess samples, adjust the ion strength of solutions, and maintain constant temperature testing. At that time, it was widely believed that the ion selective electrode method was not suitable for online monitoring.

But in2002There has been a qualitative change in the annual situation,WTWSuccessfully developed and releasedAmmoLytThe ammonia ion online selection electrode analyzer uses electrode membranes, electrolytes, and reaction electrodes made of special materials. In order to avoid interference from potassium ions on the measurement of ammonium ions, a dedicated potassium ion measurement electrode is also installed in the measurement electrode. The matrix compensation method is used to compensate for and eliminate the influence of interfering ions. This electrode can effectively compensate for interference and can be directly used in the aeration tank of sewage to measure the concentration of ammonia nitrogen.

Technical Parameter