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A new series of water sensors for nitrates and nitrites

| By Mary Page Bailey and Gerald Ondrey

The NT3100sc and the NT3200sc ultraviolet (UV) nitrate and nitrite sensors (photo) are designed with enhanced accuracy and a lower limit of detection at 0.02 mg/L. Leveraging reagent-free UV absorbance technology, NT3 Series sensors are equipped to meet a wide range of application needs, including measuring nitrate and nitrite in municipal sewage-treatment plants, surface water, untreated water or treated drinking water. The series includes three path-length options to fit users’ individual measurement ranges and turbidity-compensation needs. The sensors operate over a temperature range of 2 to 40°C and up to 95% relative humidity. They also are IP68 rated. — Hach Co., Loveland, Colo.