Memosens CPS31D
Technical Data
ComparepH
| Measuring Principle | |
| Application | Drinking water and swimming pool water, pH compensation for measuring free chlorine |
| Characteristic | Standard applications in water, long lifetime |
| Measuring range | pH 1 to 12 |
| Measuring principle | Gel filled reference with one or three diaphragms, optional saltring |
| Design | Shaft with temperature sensor |
| Material | Glass and Ceramic |
| Dimension | Diameter: 12 mm (0.47 inch) Shaft length: 120 mm (4.70 inch) |
| Process temperature | 0 to 80 °C (32 to 176 °F) |
| Process pressure | 1 to 4 bar (15 to 60 psi) |
| Temperature sensor | NTC 30k |
| Ex certification | None |
| Connection | Memosens plug-in head for digital, non-contact data transmission |
| Ingress protection | IP68 |
Memosens CPS31D is a digital electrode designed specifically for pH compensation in disinfection processes. With three ceramic diaphragms, it is suitable for measuring media with the lowest conductivity, features low drift and ensures stable measurement, thereby guaranteeing compliant swimming pool water and drinking water that meets potable-water standards. Thanks to Memosens digital technology, CPS31D offers maximum process and data integrity combined with simple operation. The electrode is corrosion-resistant and moisture-proof and can be calibrated in the laboratory and pre-maintained.
Benefits
Three-diaphragm design ensures reliable measurement in media with the lowest conductivity
Low drift and very low electrolyte ion consumption
Optional salt ring for a longer service life
Non-contact inductive signal transmission ensures maximum process safety
Sensor characteristic data are stored, enabling predictive maintenance
Reduced process downtime, longer sensor service life and lower operating costs
Common models: CPS31D-7AC21
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Technical Documentation
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Measuring Principle Video
Source:Endress+Hauserwebsite public information
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · pH 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 pH.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable pH 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 · pH 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 pH.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable pH 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 · pH 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 pH.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable pH 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 · pH 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 pH.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable pH 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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