UV sensors for nitrate

UV 700 IQ NOx: Low-cost probe with integrated ultrasonic cleaning for the maintenance-free and reagent-free measurement of nitrate:
• No replacement of seals or wiper profiles
• Minimal effort thanks to maintenance-free WTW ultrasonic cleaning
• No danger of emerging water thanks to completely sealed housing
• No corrosion thanks to titanium housing

With the new sensor UV 700 IQ NOx, nitrate is detected via a UV absorption measurement at a wavelength below 250 nm. Turbidity influences are effectively compensated by a reference measurement. This cost-effective probe is especially suited to regulate or control intermittent aeration. Another field of application is the detection of nitrate in rivers.

Model UV 701 IQ NOx UV 705 IQ NOx
Order No. 481034 481035
Measuring method UV Single Wavelengths Absorption Measurement
Measuring gap
(optical layer thickness)
1 mm 5 mm
Application (optimized for) Municipal wastewater with a low proportion of industrial wastewater, waste water treatment plants, surface water
Measuring range and Resolution NOX 0.0 … 500.0 mg/l 0.1 mg/l 0.0 … 100.0 mg/l 0.1 mg/l
NOX-N 0.0 … 100.0 mg/l 0.1 mg/l 0.0 … 20.0 mg/l 0.1 mg/l
Flow rate ≤ 3 m/s
Pressure Resistance Maximum 1 bar (incl. sensor connection cable)
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 Housing: Titan Grade 2, PEEK
Window: Sapphire glass
Protection class: IP 68
Weight (without cable) Approx. 8.82 lb (4 kg)

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