WTW VARiON® Plus 700 IQ Ammonium and Nitrate Sensor

Getting the waste out of wastewater

Reagent free, ion selective measurement of ammonium and nitrate with automatic compensation of potassium/chloride with the VARiON® Plus 700 IQ.
These especially stable electrodes ensure long operation times and a simple cleaning method. To measure, simply install the respective electrode into the IQ Sensor Net - everything will take place automatically. 

  • Features
  • Specifications
  • Variations
  • Ammonium and nitrate measurement directly in the process
  • Simultaneous compensation of potassium, chloride
  • No sampling, reagent-free
  • Calibration free, long-term stability

New: Measurement of media with high ammonium load

When thickening or dehydrating wastewater treatment sludge, the so-called centrate water is generated. This water has an especially high amonium content. The centrate water is not drained but rerouted into the wastewater circuit of the system or directly broken down into elementary nitrogen (deammonification). In both cases, the determination of the NH4 freight is very important for an optimal process run. High NH4 concentrations of up to 2000 mg/l can now be determined directly in the medium by means of the Varion®Plus 700 IQ, in centrate water as well as in process waters!

Ammonium Measurement
Integratable measuring chains Reference
Measuring electrode
Compensation
VARiON®Plus Ref
VARiON®Plus NH4
VARiON®Plus K
Measuring ranges / resolution NH4-N
NH4+
1 ... 2.000 mg/l / 1 mg/l; 0.1 ... 100 mg/l / 0.1 mg/l
1 ... 2,580 mg/l / 1 mg/l; 0.1 ... 129.0 mg/l / 0.1 mg/l
Compensation ranges K+ 1 ...1.000 mg/l / 1 mg/l

Nitrate Measurement
Integratable measuring chains Reference
Measuring electrode
Compensation
VARiON®Plus Ref
VARiON®Plus NO3
VARiON®Plus Cl
Measuring ranges / resolution NO3-N
NO3-
1 … 1.000 mg/l / 1 mg/l; 0.1 ... 100 mg/l / 0.1 mg/l
5 … 4.500 mg/l / 1 mg/l; 0.5 ... 450.0 mg/l / 0.1 mg/l
Compensation ranges CI- 1 ...1.000 mg/l / 1 mg/l
Temperature measurements and
compensation
integrated NTC
Area
Accuracy
Resolution

0 °C … +40 °C
±0.5 K
0.1 K, t95 < 20 s
Model Description Order no.
VARiON®Plus 700 IQ Digital sensor for the ion selective measurement of ammonium and nitrate, without electrodes 107040
VARiON®Plus A comp SET NH4 VARiON®Plus 700 IQ, reference electrode VARiON® Ref, ammonium measuring electrode VARiON®Plus NH4 and compensation electrode VARiON®Plus K (potassium) 107060
VARiON®Plus N comp SET NO3 VARiON®Plus 700 IQ, VARiON® Ref, VARiON®Plus NO3 and VARiON®Plus Cl (chloride) 107062
VARiON®Plus AN/A comp SET NH4 & NO3 VARiON®Plus 700 IQ, VARiON®Ref, VARiON®Plus NH4 and VARiON®Plus NO3, VARiON®Plus K (potassium) 107066
VARiON®Plus AN/N comp SET NH4 & NO3 VARiON®Plus 700 IQ, VARiON®Ref, VARiON®Plus NH4 and VARiON®Plus NO3, VARiON®PlusCl (chloride) 107068

Please order the sensor cable SACIQ separately.