ViomaxCAS51D - Memosens Sensor For Optical Nitrate Or SAC Measurement
MemosensSensor For Optical Nitrate Or SAC Measurement In Water, Wastewater And Utilities.
Viomax CAS51D is a smart sensor that allows unattended operation in a wide range of
process conditions. Just immerse it into your process and measure. The sensor's unique
design is extremely robust and it is also low-maintenance thanks to its self-cleaning functionality.
With Memosens digital technology, CAS51D combines maximum process and data integrity with
simple operation. It enables lab calibration and simplifies predictive maintenance.
Benefits
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Cost-effective and environmentally friendly measuring method
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No complex sampling and sample conditioning
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Chemical-free measurement
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Ready for application through factory calibration
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Early, fast and complete detection of load gaps
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Extremely long maintenance intervals thanks to automatic air cleaning

Field of application
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Monitoring and control of water treatment plants
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Monitoring of surface waters
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Nitrate measurement
- in water bodies
- in the outlet of wastewater treatment plants
- in the aeration basin
- Monitoring and optimization of denitrification stages -
SAC measurement
- Organic load in the inlet and outlet of wastewater treatment plants
- Monitoring of discharges
- Organic load in drinking water
- Determination of CODeq or TOCeq
Technical information
| Measuring Principle | UV photometric | |
| Characteristic | Insitu (immersion in process), extractive with sample and flow cell Optical photometric sensor for nitrate and SAC | |
| Size | ca. 390 mm x 40 mm | |
| Design | 40 mm sensor, stainless steel stainless steel 316L | |
| Process temperature | 5 ... 50°C / 41 -120°F | |
| Ambient temperature | -20 ... 60°C / -4 - 140°F | |
| Specials | G1, NPT3/4 IP68 (1m/3,3ft) water column with 1N KCl during 60d ays | |
| Application |
Drinking water, biological waste wate process, WWTP effluent Monitoring of surface water |
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| Measurement range |
0,01..10 mg/l / 0,1 ..50 mg/l NO3-N 0,04..80 mg/l / 0,4..200 mg/l NO3 0,1..50 1/m / 0,5..250 1/m / 1,5..700 1/m SAC 0,15..75 mg/l / 0,75..370 mg/l / 2,5..1000 mg/l COD(254nm) 0,06..30 mg/l / 0,3..150 mg/l / 0,9..410 mg/l TOC(254nm) |
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