Technical Data
ComparepH
| Measuring Principle | Potentiometric |
| Application | - Process applications - media with high contamination: emulsions, suspensions, precipitation reactions - min. conductivity >500µS/cm. |
| Characteristic | - rapid response - new, stabilised gel insensitive to contaminations |
| Measuring range | pH 0-14 |
| Measuring principle | - Open aperture - double gel reference |
| Design | - all shaft lengths with temperature sensor - advanced gel technology |
| Material | Glass |
| Dimension | Diameter: 12 mm (0.46 inch) Shaft lengths: 120, 225, 360 and 425 mm (4.68, 8.77, 14.04 and 16,57 inch) |
| Process temperature | max. 110°C (230°F) |
| Process pressure | max. 10 bar (145 psi) |
| Temperature sensor | Optional with integrated Pt100 or Pt1000. |
| Ex certification | Simple operational equipment, no certification necessary. |
| Connection | TOP68 plug-in head |
| Ingress protection | IP68 |
Field of application
Orbipore CPS91 is the analog specialist for pH measurement in fibrous media or media with a high content of suspended solids such as dispersions, precipitation reactions or emulsions. The open aperture prevents fouling and guarantees you the most reliable measurement under extreme process conditions.
Chemical processes
Pulp and paper industry
Contaminated media and suspended solids
- Dispersions
- Precipitation
- Emulsions
With ATEX, FM, and CSA approval for application in hazardous areas.
Benefits
Open aperture for application in heavily soiled media
Low maintenance and long service life due to stabilized gel filling
Not affected by fluctuations in pressure and temperature
pH:
| Measuring Principle | Potentiometric | |
| Application | Long-term monitoring and limit control in processes with stable process conditions Water and wastewater treatment |
|
| Characteristic | Digital pH electrode for standard applications in process and environmental technology with dirt-repellent PTFE ring junction and built-in temperature sensor | |
| Measuring range | Application A • pH: 1 to 12 Application B • pH: 0 to 14 Application F • pH: 0 to 10 |
|
| Measuring principle | Gel compact electrode with PTFE ring junction | |
| Design | All shaft lengths with temperature sensor Advanced gel technology |
|
| Material | Sensor shaft: Glass to suit process pH membrane glass: Type A, B, F Metal lead: Ag/AgCl Aperture: Ring-shaped PTFE junction O-ring: FKM Process coupling: PPS fibre-glass reinforced Nameplate: ceramic metal oxide |
|
| Dimension | Diameter: 12 mm (0.47 inch) Shaft length: 120, 225, 360 and 425 mm (4.72, 8.86, 14.17 and 16.73 inch) |
|
| Process temperature | Application A: –15 to 80 °C (5 to 176 °F) Application B: 0 to 135 °C (32 to 275 °F) Application F: 0 to 70 °C (32 to 158 °F) |
|
| Process pressure | Applications A and B: 0.8 to 17 bar (11.6 to 246.5 psi) absolute Application F: 0.8 to 7 bar (11.6 to 101.5 psi) absolute |
|
| Temperature sensor | NTC 30K | |
| Ex certification | With ATEX, IECEx, CSA C/US, NEPSI, Japan Ex and INMETRO approvals for use in hazardous areas Zone 0, Zone 1 and Zone 2 | |
| Connection | Inductive, digital connection head with Memosens 2.0 technology | |
| Ingress protection | IP68 | |
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.
Related Products
Endress+HauserOrbisint CPS11D Memosens
Endress+HauserLiquisys M CPM223
Endress+HauserMemosens CPS11E
Endress+HauserOrbipac CPF81
Endress+HauserMeas. cable CYK10 Memosens
Endress+HauserLiquisys M CPM253
Endress+HauserCeragel CPS71D Memosens
Endress+Hauser