Measuring method

Electrochemical

Appropriate Electrode

Reference electrode VARiON^® Ref, Measuring electrode VARiON^®Plus NO3, Compensation electrode VARiON^®Plus Cl

Measuring range/Resolution

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

Compensation Range

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

Calibration Procedures

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)

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

Pressure Resistance

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)

Electrical connections

2-wire shield cable with quick fastener to sensor

Electromagnetic Compatibility

EN 61326, Class B, FCC Class A;
Intended for indispensable operation

Certifications

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

Weight

Approx. 1.48 lb (670 g, without electrode, without sensor connection cable)

Warranty

NitraLyt^®Plus 700 IQ: 2 years
Electrodes: 1 year for defects of quality