Specs at a glance Measuring range: 0.01 to 20 mg/l / 0.1 to 50 mg/l NO3-N 0.04 to 80 mg/l / 0.4 to 200 mg/l NO3 0 to 50 1/m / 0 to 250 1/m / 0 to 1000 1/m SAC 0 to 75 mg/l / 0 to 375 mg/l / 0 to 1500 mg/l COD/BOD (254nm) 0 to 30 mg/l / 0 to 150 mg/l / 0 to 600 mg/l TOC/DOC (254nm) Process temperature: 5 to 50°C (41 to 120 °F) ---------------------------------------- Field of application Endress Hauser's Viomax CAS51D is a smart sensor that allows unattended operation in a wide range of process conditions in water, wastewater and utilities. It ensures continuous online measurements without any chemicals and it is extremely robust as well as low-maintenance thanks to its self-cleaning design. You can select the CAS51D as nitrate sensor or as sensor for SAC and several sumparameters. Thanks to Memosens digital technology, Viomax CAS51D offers high process and data integrity and is easy-to-use. • Organic load or nitrate in inlet and outlet • Determination of CODeq, TOCeq, BODeq or DOCeq • Monitoring, control and optimization of treatment processes • Nitrate monitoring in the aeration basin and denitrification stage