IQ Sensor Net IQ Sensor Net VARiON Plus Ammonium Nitrate Sensor

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Overview

Overview

Product Features

The WTW IQ Sensor Net VARiON Plus Ammonium Nitrate Sensor is a rugged ion selective electrode (ISE) probe for the IQ Sensor Net process monitoring system. 

  • Measurement and display of ammonium, nitrate and 1 compensation electrode (potassium or chloride); cross-compensation with compensation electrode on separate probe within the same IQ network
  • Individually, user-replaceable measurement and reference electrodes
  • VARiON reference system is very stable over long periods of time
  • Digital probe recognizes electrodes

The WTW IQ Sensor Net VARiON Plus Ammonium Nitrate Sensor provides continuous and reagentless monitoring of Ammonium, Nitrate, Potassium and Chloride simultaneously.

The probe uses the most precise and reliable electrodes on the market. The individually replaceable electrodes have a typical lifetime of 18 to 24 months and are warrantied for 1 year, minimizing maintenance efforts and ownership costs.

The VARiON is a good choice for simultaneous nitrification/denitrification monitoring and process control of aeration, mixed liquor recirculation, and external carbon dosing.

Additional features:

  • Simple in-situ calibration
  • Integrated NTC temperature sensor for temperature compensation
  • 2-year warranty on the probe, 1-year on electrodes

Multiple versions:

  • VARiON®PlusAN/A comp SET-Sensor incl. NH4, NO3, K and reference electrodes (SKU: 107066)
  • VARiON®Plus 700 IQ - IQ sensor for NH4, NO3, K and Cl (ISE) (SKU: 107040)
  • VARiON®Plus A comp SET - Sensor incl. NH4, K and reference electrodes (SKU: 107060)
  • VARiON®Plus N comp SET - Sensor incl. NO3, Cl and reference electrodes (SKU: 107062)
  • VARiON®PlusAN/Ncomp SET (SKU: 107068)
Specifications

Specifications

Specifications
Ammonium Measurement
Nitrate Measurement
Measuring method
Electrochemical
Electrochemical
Maximum Configuration
Common reference electrode, two measuring electrodes, one compensation electrode
Common reference electrode, two measuring electrodes, one compensation electrode
Integrable Electrodes
-
-
Reference Electrode
VARiON®Plus Ref
VARiON®Plus Ref
Measuring Electrode
VARiON®Plus NH4
VARiON®Plus Ref
Compensation Electrode
VARiON®Plus K
VARiON®Plus Cl
Measuring range/Resolution
NH4-N: 1 ... 2,000 mg/l / 1 mg/l; 0.1 ... 100 mg/l / 0,1 mg/l; NH4+: 1 ... 2,580 mg/l / 1 mg/l; 0.1 ... 129.0 mg/l / 0,1 mg/l
NO3-N: 1 … 1,000 mg/l / 1 mg/l; 0.1 ... 100 mg/l / 0,1 mg/l; NO3-: 5 … 4500 mg/l / 1 mg/l; 0.5 ... 450.0 mg/l / 0,1 mg/l
Compensation Ranges
K+: 0.1 ... 1,000 mg/l / 0.1 mg/l
Cl-: 0.1 ... 1,000 mg/l / 0.1 mg/l
Measuring Accuracy in laboratory standard solutions
± 5 % of measured value ± 0.2 mg/l in standard solutions
± 5 % of measured value ± 0.2 mg/l in standard solutions
Calibration Procedures
Matrix adjustment against any reference value, 2-point-calibration possible with multiple standard solution
Matrix adjustment against any reference value, 2-point-calibration possible with multiple standard solution
Working Life (typically)
Reference electrode: 18 months, measuring and compensation electrode: 18 months (in typical application - municipal sewage plants)
Reference electrode: 18 months, measuring and compensation electrode: 18 months (in typical application - municipal sewage plants)
Temperature Measurement and Compensation
Integrated NTC thermistor; Range 32 °F … 104 °F (0 °C … +40 °C), Accuracy ±0.5 K, Resolution 0.1 K, t95 < 20 s
Integrated NTC thermistor; Range 32 °F … 104 °F (0 °C … +40 °C), Accuracy ±0.5 K, Resolution 0.1 K, t95 < 20 s
Pressure Resistance
Maximum 0.2 bar (incl. SACIQ sensor connection cable, with installed electrodes)
Maximum 0.2 bar (incl. SACIQ sensor connection cable, with installed electrodes)
Ambient Conditions
Operating temperature: 32 °F … 104 °F (0 °C … +40 °C), storing temperature: 32 °F … 104 °F (0 °C … +40 °C)
Operating temperature: 32 °F … 104 °F (0 °C … +40 °C), storing temperature: 32 °F … 104 °F (0 °C … +40 °C)
Electrical connections
2-wire shield cable with quick fastener to sensor
2-wire shield cable with quick fastener to sensor
Electromagnetic Compatibility
EN 61326, Class B, FCC Class A; Intended for indispensable operation
EN 61326, Class B, FCC Class A; Intended for indispensable operation
Certifications
CE
CE
Mechanical
Sensor body: V4A stainless steel 1.4571 Protective cup: POM; Temperature sensor: V4A stainless steel 1.4571 Protection rating: IP 68 (0.2 bar, with installed electrodes); Electrode connector: POM
Sensor body: V4A stainless steel 1.4571 Protective cup: POM; Temperature sensor: V4A stainless steel 1.4571 Protection rating: IP 68 (0.2 bar, with installed electrodes); Electrode connector: POM
Weight
Approx. 1.48 lb (670 g, without electrode, without sensor connection cable)
Approx. 1.48 lb (670 g, without electrode, without sensor connection cable)
Warranty
VARiON®Plus 700 IQ: 2 years; Electrodes: 1 year for defects of quality
VARiON®Plus 700 IQ: 2 years; Electrodes: 1 year for defects of quality
Industries & Applications

Industries & Applications

Recommended Industries and Applications

Documentation & Tools

Documentation & Tools

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