Endress+Hauser CPS11E equivalent: Hamilton Polilyte Plus H
A Hamilton counterpart with the same connector footprint for the Memosens gel pH sensor CPS11E; the differences are stated openly.
Polilyte Plus H for the CPS11E (Application A and B)
- Counterpart: Hamilton Polilyte Plus H (Memosens or Arc digital; VP and S8 analog). For media containing HF, the counterpart of CPS11E Application F is Polilyte Plus HF.
- Shared points: glass electrode, maintenance-free gel/polymer electrolyte, a junction designed against clogging, 12 mm shaft, 120 / 225 / 360 / 425 mm length family.
- Check: Polilyte Plus H withstands up to 10 bar (gauge); its lower temperature limit is 0 °C (CPS11E Application A: -15 °C).
Equivalence level: Equivalent with notes: same connector footprint and function; the documented differences are the upper pressure limit and the lower temperature limit.
Side-by-side technical comparison
| Feature | Endress+Hauser CPS11E | Hamilton Polilyte Plus H |
|---|---|---|
| Measuring principle and glass | Glass electrode; Ag/AgCl reference [E1] | Glass electrode; H glass [H1] |
| pH range | Application A: pH 1-12; Application B: pH 0-14; Application F (HF): pH 0-10 [E1] | 0-14 pH [H1] |
| Reference and electrolyte | 3 M KCl bridging electrolyte (AA/TA) or saturated KCl (AS/TS); ion trap in TA and TS reference systems [E1] | Everef-L reference; Polisolve Plus polymer gel [H1] |
| Junction | Ring-shaped PTFE junction, sterilizable [E1] | Two Single Pore junctions (direct contact with the sample) [H1] |
| Output / protocol | Memosens 2.0 (digital) [E1] | Memosens, Arc (digital); VP, S8 (analog) [H1] |
| Process connection and length | PG 13.5; Ø 12 mm; 120 / 225 / 360 / 425 mm [E1] | 12 mm shaft; PG 13.5 mounting thread on S8-connector models; a-length 120 / 225 / 325 / 360 / 425 mm (360 mm with Memosens only in H glass) [H1, H2] |
| Temperature | Application A: -15...80 °C; Application B: 0...135 °C [E1] | 0...130 °C (HF glass: -10...100 °C) [H3] |
| Pressure | 0.8-17 bar absolute (about 16 barg); Application F: 7 bar absolute [E1] | 0-10 barg (Polilyte Plus HF: 16 barg) [H3] |
| Sterilization | No autoclave/CIP value given; the PTFE junction is described as "sterilizable" [E1] | H glass: autoclave and SIP (CIP: HB and PHI glasses) [H1] |
| Certificates / Ex | ATEX II 1G Ex ia IIC T3/T4/T6 Ga; IECEx, NEPSI, CSA C/US and other regional Ex approvals; EU Drinking Water Directive (EU) 2020/2184 [E1] | Not stated in the catalog for this sensor [H1] |
Every cell carries a source code; the sources are listed below the table. Pressure values: Endress+Hauser states absolute pressure, Hamilton states gauge pressure (barg); the difference is about 1 bar.
Why it is an equivalent
- Both are glass pH sensors with a non-refillable, maintenance-free gel/polymer electrolyte, aimed at process media such as chemicals, water and wastewater (E+H: process technology and environmental engineering; Hamilton: chemistry, wastewater, demanding applications, low conductivity).
- Both use a junction developed against clogging: E+H a large, dirt-repellent PTFE ring; Hamilton Single Pore. The designs differ, the goal is the same.
- The Memosens digital connector option, the 12 mm shaft and the same length family reduce the need to change the existing housing.
- On the reference side E+H uses an "ion trap" or a long poison diffusion path, Hamilton uses Everef-L (long diffusion path); both aim to slow the ingress of poisons into the reference. The mechanisms are not identical; for sulfide-critical processes an engineering check is recommended.
Points to check when selecting
- Pressure: above 10 barg Polilyte Plus H is not selected. For 10-16 barg there is Polilyte Plus XP H; in the catalog it is listed only with S8 and VP connectors and a 120 mm length (no Memosens or Arc).
- Lower temperature: CPS11E Application A goes down to -15 °C; Polilyte Plus H starts at 0 °C. It does not fit media near freezing.
- HF media: for Application F, Polilyte Plus HF (-10...100 °C, 16 barg, Memosens option) is considered.
- High temperature: catalog values above 100 °C describe the sterilization (SIP/autoclave) condition for both manufacturers; check the manufacturer document for continuous process temperature.
- Transmitter: a Memosens output needs a Memosens-input transmitter; the Memosens generation compatibility (Memosens 2.0) of your transmitter must be confirmed separately. The Arc version connects directly to the process control system.
- Ex area: the Hamilton catalog does not state an Ex approval for this sensor; verification is required for use in explosive atmospheres.
Sources and verification
- [E1] Endress+Hauser Technical Information TI01493C/07/EN/03.25-00, Memosens CPS11E (Application A, B, F tables).
- [H1] Hamilton Process Analytics Catalog 2026, Polilyte Plus, p.22 (specifications, order codes, glass selection table).
- [H2] Hamilton Process Analytics Catalog 2026, connector descriptions (S7/S8; S8 has PG13.5 mounting thread).
- [H3] Hamilton Process Analytics Catalog 2026, "Sensor Comparison" table, p.184 (Polilyte Plus H, HF, XP H rows).
How the match was verified. The match comes from the Mikron cross-reference study (22-23 September 2026): the reference system, diaphragm and electrolyte functions of both sides were tied to manufacturer quotations, every match was compared element by element and by application area, and the result was re-checked in a separate blind test. Values come from the manufacturer documents listed above; for critical applications please confirm them against the original document and the order code.
Trademark note. Endress+Hauser, Memosens and the other competitor names mentioned are registered trademarks of their respective owners; Hamilton, Polilyte, MecoTrode, OxyFerm, Conducell, Everef, Polisolve, Arc and related names are registered trademarks of their respective owners. The names are used only to describe technical equivalence. Mikron Proses Kimyasal ve Mühendislik Çözümleri A.Ş. is not affiliated with the competitor brands mentioned.
Frequently asked questions
CPS11E counterpart, pressure difference and transmitter compatibility.
What is the Hamilton equivalent of the Endress+Hauser CPS11E?
For Application A and B, Hamilton Polilyte Plus H (Memosens, Arc, VP or S8 connector); for media containing HF, the counterpart of CPS11E Application F is Polilyte Plus HF. Both have a 12 mm shaft and are offered in the 120-425 mm length family.
Is Polilyte Plus H enough for the CPS11E 17 bar rating?
The CPS11E value of 17 bar is absolute pressure (about 16 barg); Polilyte Plus H is rated 10 barg. If the process is below 10 barg it is sufficient. For 10-16 barg, Polilyte Plus XP H is considered; in the catalog this model appears only with S8 and VP connectors in 120 mm.
What information should I share when choosing an equivalent?
The full code of the current sensor (e.g. CPS11E-AA...), medium and pH range, temperature and pressure (absolute or gauge), connector (Memosens/analog), shaft length and transmitter model. With this information we confirm the model and order code together.
Confirm the equivalent for your process
Send your current sensor code, process medium, temperature, pressure and connector; we will confirm the model and configuration together.