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Yokogawa
Endress+Hauser Memosens CPF81E Digital pH Sensor
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CPF81E: pH 0–14; to 110 °C; NPT ¾; IP68; Memosens 2.0. RFQ app.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
YPP6200: 0–20 mA, 4–20 mA, 0–5 V, 1–5 V, ±10 V; YPP6300: pulse/open-collector/NPN/PNP/TTL/switch-contact/sine/square
Output
Optional 2 or 4 SPDT relays; isolated 4–20 mA for rate or total
Supply
85–265 VAC / 90–265 VDC or 12–24 VDC / 12–24 VAC
Housing
1/8 DIN panel meter; NEMA 4X / IP65 front
Ambient temperature
Operating −40 to 65 °C (−40 to 149 °F)
Display
Dual-line 6-digit, 0.60 in / 0.46 in; standard or SunBright outdoor models
Fits harsh mining, industrial water, and wastewater pH where you need an Endress+Hauser Memosens CPF81E—compact PPS electrode with NPT ¾ in connection, double-chamber reference, and Memosens 2.0 digital head rated IP68.
Key advantages
- pH — App L 0–14; App N 0–11
- Temperature — L 0–110 °C; N 0–80 °C
- Pressure — About 0.8–11 bar abs class
- Body — PPS; NPT ¾ in; optional flat membrane
- Digital — Memosens 2.0; NTC 30K; IP68
Typical applications
- Flotation / leaching pH.
- Neutralization and WW outlet.
- Abrasive or high-flow streams.
Selection guide
- App L vs N
- Flat vs long shaft
- Ex approval need
Common mistakes
- App N ordered for >80 °C service.
- Analog transmitter without Memosens cable.
- Frost storage damage.
When to RFQ / what to tell us
- App version, options.
- Transmitter, quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 36954 |
| Brand | Endress+Hauser |
| Model | Memosens CPF81E |
| Product type | pH Sensor |
| Type | Digital Memosens 2.0 compact pH sensor (CPF81E) |
| pH range | App L: 0–14; App N: 0–11 |
| Temperature | L: 0–110 °C; N: 0–80 °C |
| Pressure | About 0.8–11 bar abs (1–10 bar abs at 80 °C class) |
| Connection | NPT ¾ in; PPS housing |
| Reference | Double-chamber KNO3 / KCl-AgCl gel; PTFE diaphragm |
| Temp sensor | Integrated NTC 30K |
| IP | IP68 |
Documents
FAQ
Q: Process connection? A: NPT ¾ in on PPS housing.
Q: Max T (L)? A: 110 °C on application L.
Q: What should I send for a quote? A: App/options, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | YPP6200: 0–20 mA, 4–20 mA, 0–5 V, 1–5 V, ±10 V; YPP6300: pulse/open-collector/NPN/PNP/TTL/switch-contact/sine/square |
| Output | Optional 2 or 4 SPDT relays; isolated 4–20 mA for rate or total |
| Supply | 85–265 VAC / 90–265 VDC or 12–24 VDC / 12–24 VAC |
| Housing | 1/8 DIN panel meter; NEMA 4X / IP65 front |
| Ambient temperature | Operating −40 to 65 °C (−40 to 149 °F) |
| Display | Dual-line 6-digit, 0.60 in / 0.46 in; standard or SunBright outdoor models |
| Communication | USB PROPLUS software; optional RS-232 / RS-485 Modbus RTU |
| Approvals | UL & C-UL Listed E348677; 508 Industrial Control Equipment |
| Mounting | 1/8 DIN panel mount; optional NEMA 4X multi-meter enclosures |
| Functions | Simultaneous rate and total; grand total / non-resettable grand total; low-flow cutoff; square-root extraction; 32-point linearization; open-channel exponent |
| Transmitter Power | Isolated 24 VDC @ 200 mA (analog); 5/10/24 VDC flowmeter power (pulse) |