Endress+Hauser · Analytical & Liquid Analysis
Memosens CPS11E Digital pH Sensor
Part number CPS11E-AA7BAA1
Digital pH glass electrode with Memosens 2.0, calibrated in the lab and hot-swapped in the field, for water, process and general industry.
- CE
- RoHS
- REACH

Overview
The Memosens CPS11E is the all-round pH electrode for water treatment and general process duty. Calibration data lives in the sensor head, so electrodes are calibrated comfortably in the lab and exchanged in the field in seconds with no re-calibration on site. The inductive Memosens connection has no metal contacts, so moisture and corrosion cannot corrupt the signal. Extended diagnostics (sensor condition check, operating hours, glass impedance) tell you when to replace the sensor before measurements drift.
Key features
- Memosens 2.0 — contactless, pre-calibrated hot-swap
- Calibration data and sensor history stored in the sensor head
- Sensor condition check (SCC) and extended diagnostics
- Gel reference with double junction for long life
- Works with Liquiline CM442/CM444/CM448 and CM42
Typical applications
- Neutralization control
- Drinking water monitoring
- CIP media verification
- Effluent and cooling water
Technical specifications — CPS11E-AA7BAA1
| Measurement | |
|---|---|
| Parameter | pH 0…14 |
| Reference | Gel, double junction |
| Temperature sensor | Integrated Pt1000 |
| Process | |
| Process temperature | -15…+80 °C |
| Process pressure | up to 10 bar (at 25 °C) |
| Connection | |
| Sensor head | Memosens 2.0, inductive |
| Mechanical | |
| Shaft length | 120 mm (225 and 360 mm options), Pg 13.5 thread |
Specifications are summarised from the manufacturer's documentation for selection purposes. Always confirm against the current datasheet before design-in; we send the datasheet and the exact ordering code with every quotation.
Related part numbers and alternatives
| Part number | Relationship | |
|---|---|---|
CPS31E | Memosens CPS31E — gel electrode for drinking and process water | Quote |
CPS16E | Memosens CPS16E — combined pH/ORP | Quote |
CPS171E | Memosens CPS171E — hygienic pH for food and pharma | Quote |
Not sure which variant you need? Send us the nameplate photo or the old part number and we will identify the current equivalent.
Supply, documentation and lead time
What you receive
- Genuine Endress+Hauser product in original packaging
- Commercial invoice and packing list; Certificate of Conformance on request
- Datasheet, declaration of conformity and country of origin as issued by the manufacturer
- Manufacturer warranty, period stated on the quotation
How we quote
- Reply within one business day with price, lead time and stock position
- Alternatives proposed when they improve price or delivery
- Incoterms of your choice: EXW Hai Phong, FOB/FCA, CIF/DAP to your site
- Consolidated shipments for multi-line orders; export documentation for buyers outside Vietnam
Indicative HS code 9027.80 — final classification is confirmed on the commercial invoice.
Frequently asked questions
Is the CPS11E-AA7BAA1 available from stock, and what is the lead time?
Availability of the Memosens CPS11E Digital pH Sensor changes with manufacturer production and distributor stock, so we confirm it per request rather than publishing a number that may be out of date. Send the part number and quantity through the quote form and you will receive stock position and lead time within one business day.
Is the CPS11E-AA7BAA1 genuine, and what documentation comes with it?
We supply only genuine Endress+Hauser products sourced from the manufacturer or authorized distribution channels. Each delivery includes the commercial invoice and packing list; a Certificate of Conformance, declaration of conformity and country-of-origin statement are provided on request, and the manufacturer's warranty applies.
Can you ship the CPS11E-AA7BAA1 outside Vietnam?
Yes. We quote EXW Hai Phong, FCA/FOB, CIF or DAP and prepare the export documentation. Buyers in Japan, ASEAN, Europe and North America regularly consolidate multi-brand orders with us into one shipment.
What if the CPS11E-AA7BAA1 is the wrong variant for my application?
Tell us the application in the notes field. Our engineers check the ordering code against your supply voltage, I/O, communication and environmental requirements and propose the correct variant or a successor part before quoting — at no charge.