Technical Data
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| Measuring Principle | UV photometric |
| Characteristic | Insitu (immersion in process), extractive with sample and flow cell Optical photometric sensor for nitrate and SAC |
| Size | 388 / 394 mm x 40 mm, depends on version |
| Design | 40 mm sensor, stainless steel 316L |
| Process temperature | 5 to 50°C (41 to 120 °F) |
| Ambient temperature | -20 to 60 °C (-4 to 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 |
| 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) |
The Viomax CAS51D is an intelligent nitrate and spectral absorption coefficient (SAC) sensor that can perform unattended operation under various process conditions. Simply immerse the sensor in the process to measure. The sensor has a uniquely robust design and a self-cleaning function that ensures low maintenance requirements. Using Memosens digital technology, the CAS51D also offers maximum process and data integrity and is easy to operate. Laboratory calibration and device predictive maintenance are possible.
Advantages
Economical measuring method: no chemical reagents, safe, environmentally friendly and cost-saving
Extremely short response time: the sensor processes the measured values and provides reliable real-time process information
Fast and simple commissioning: the sensor is pre-calibrated and preset at the factory
Unattended operation: intelligent design and automatic air cleaning function increase utilization and reduce maintenance
Perfect for open basin measurement: Flexdip CYH112 holder and CYA112 mounting bracket for fast and flexible sensor installation
Perfect for pipe measurement: various flow assemblies for convenient pipe installation
Areas of application
The Viomax CAS51D is used for nitrate or SAC measurement in drinking water, process water, wastewater and utility sections:
Organic content or nitrate at inlet and outlet
CODeq or TOCeq determination
Monitoring, control and optimization during treatment
Nitrate monitoring in aeration basins and denitrification processes
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Source:Endress+Hauserwebsite public information
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · EH-ONLINE Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of EH-ONLINE.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable EH-ONLINE for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · EH-ONLINE Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of EH-ONLINE.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable EH-ONLINE for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · EH-ONLINE Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of EH-ONLINE.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable EH-ONLINE for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · EH-ONLINE Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of EH-ONLINE.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable EH-ONLINE for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
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