CPS11E-AA7BAA2 Product Overview
CPS11E-AA7BAA2 is a pH electrode used for industrial process measurement and belongs to the Endress+Hauser Memosens series. It uses digital signal transmission technology and features strong anti-interference capability and high measurement accuracy. This electrode is suitable for online pH monitoring in industries such as chemicals, pharmaceuticals, and water treatment.

Technical Parameters and Performance Features
Core Parameters
| Parameter | Specification |
|---|---|
| Measurement range | pH 0~14 |
| Process temperature | -5~80°C (short-term 135°C) |
| Process pressure | 0~6 bar |
| Interface | Memosens digital interface |
| Reference system | Gel electrolyte, contamination-resistant |
| Membrane structure | Glass membrane, low impedance |
Main Features
- Digital signal output: Directly outputs digital signals without a transmitter, resistant to electromagnetic interference.
- Plug and play: Supports Memosens technology, enables offline calibration, and reduces on-site downtime.
- Corrosion-resistant design: Gel electrolyte and PVDF housing, suitable for harsh working conditions.
- Long service life: Low-impedance glass membrane, fast response, and long service life.
Installation and Usage Precautions
Installation Steps
- Check the appearance of the electrode and confirm there is no damage.
- Install the electrode into a suitable bracket or flow-through cell, ensuring the measuring end is immersed.
- Connect the Memosens cable, paying attention to the interface direction.
- After power-on, calibrate using standard buffer solutions.
- After calibration is completed, put it into online measurement.
Maintenance Recommendations
- Regularly clean the electrode surface to prevent contamination.
- Avoid dry storage; it is recommended to store in 3M KCl solution.
- The calibration cycle should be determined according to working conditions, usually 1~2 weeks.
- When slow response or large drift is found, replace the electrode promptly.
Selection and Procurement Recommendations
When choosing CPS11E-AA7BAA2, it is necessary to confirm the process connection, cable length, and whether a matching transmitter is required. This model is suitable for most conventional industrial pH measurements. If the medium contains hydrofluoric acid or strong alkali, a dedicated electrode should be selected. When purchasing, please look for original factory packaging to avoid counterfeit products affecting measurement.