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Measuring method
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Electrochemical
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Appropriate Electrode
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Reference electrode VARiON® Ref, Measuring electrode VARiON®Plus NO3, Compensation electrode VARiON®Plus Cl
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Measuring range/Resolution
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NO3-N: 1 ... 1000 mg/l / 1 mg/l; 0.1 ... 100.0 mg/l / 0.1 mg/l
NO3-: 5 ... 4500 mg/l / 5 mg/l; 0.5 ... 450.0 mg/l / 0.5 mg/l
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Compensation Range
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Cl-: 0.1 ... 1,000 mg/l / 0.1 mg/l
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Measuring Accuracy in laboratory standard solutions
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± 5 % of measured value ± 0.2 mg/l in standard solutions
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Calibration Procedures
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Matrix adjustment against any reference value, 2-point-calibration possible with multiple standard solution
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Working Life (typically)
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Reference electrode: 18 months,
measuring and compensation electrode: 18 months (in typical application - municipal sewage plants)
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Temperature Measurement and Compensation
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Integrated NTC thermistor,
Range 32 °F … 104 °F (0 °C … +40 °C), Accuracy ±0.5 K, Resolution 0.1 K, t95 < 20 s
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Pressure Resistance
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Maximum 0.2 bar (incl. SACIQ sensor connection cable, with installed electrodes)
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Ambient Conditions
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Operating temperature: 32 °F … 104 °F (0 °C … +40 °C), storing temperature: 32 °F … 104 °F (0 °C … +40 °C)
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Electrical connections
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2-wire shield cable with quick fastener to sensor
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Electromagnetic Compatibility
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EN 61326, Class B, FCC Class A;
Intended for indispensable operation
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Certifications
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CE
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Mechanical
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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
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Weight
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Approx. 1.48 lb (670 g, without electrode, without sensor connection cable)
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Warranty
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NitraLyt®Plus 700 IQ: 2 years
Electrodes: 1 year for defects of quality
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