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Endress+Hauser
Endress+Hauser Memosens COS81E Optical Oxygen Sensor
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E+H COS81E: optical DO; 0.004–30 mg/l; ±1% or ±8 µg/l; IP68; Memosens 2.0. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Approvals
ATEX / IECEx / CSA C/US / NEPSI / Korea Ex / Japan Ex / INMETRO; EHEDG; ASME-BPE
Type
Digital optical dissolved oxygen sensor (Memosens COS81E / Memosens 2.0)
Measuring Range Do
0.004 to 30 mg/l; 0.05 to 330 %SAT; 0.1 to 700 hPa (U-shape; 25 °C / 1013 hPa)
Process Temperature
0 to 60/80 °C (C-shape/U-shape); sterilization max. 140 °C at 6 bar / 45 min
Process Pressure
0.02 to 13 bar abs (0 to 190 psi)
Measurement Error
±1% of measured value or ±8 µg/l (ppb), whichever greater
Fits optical dissolved oxygen where you need an Endress+Hauser Memosens COS81E. Memosens 2.0 optical DO sensor spanning about 0.004 to 30 mg/l (0.05–330 %SAT), measurement error ±1% of measured value or ±8 µg/l (whichever greater), process pressure 0.02–13 bar abs, and IP68 316L hygienic design.
Key advantages
- Principle — Optical DO; Memosens 2.0
- Range — About 0.004–30 mg/l
- Error — ±1% MV or ±8 µg/l
- Pressure — 0.02–13 bar abs
- Protection — IP68; 316L hygienic
Typical applications
- Hygienic optical DO.
- Biotech / food DO.
- Sterilization-capable optical DO.
Selection guide
- C-shape vs U-shape
- Mounting
- Liquiline host
Common mistakes
- Exceeding sterilization limits.
- Wrong tip shape.
- No Memosens cable.
When to RFQ / what to tell us
- Shape/mounting.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 46146 |
| Brand | Endress+Hauser |
| Model | Memosens COS81E |
| Product type | Oxygen Sensor |
| Type | Digital optical dissolved oxygen sensor (Memosens COS81E / Memosens 2.0) |
| Measuring range DO | 0.004 to 30 mg/l; 0.05 to 330 %SAT; 0.1 to 700 hPa (U-shape; 25 °C / 1013 hPa) |
| Process temperature | 0 to 60/80 °C (C-shape/U-shape); sterilization max. 140 °C at 6 bar / 45 min |
| Process pressure | 0.02 to 13 bar abs (0 to 190 psi) |
| Measurement error | ±1% of measured value or ±8 µg/l (ppb), whichever greater |
| Ingress protection | IP68 |
| Material | Stainless steel 1.4435 (AISI 316L) hygienic design |
Documents
FAQ
Q: Error? A: ±1% MV or ±8 µg/l.
Q: IP? A: IP68.
Q: What should I send for a quote? A: Shape/mounting, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Approvals | ATEX / IECEx / CSA C/US / NEPSI / Korea Ex / Japan Ex / INMETRO; EHEDG; ASME-BPE |
| Type | Digital optical dissolved oxygen sensor (Memosens COS81E / Memosens 2.0) |
| Measuring Range Do | 0.004 to 30 mg/l; 0.05 to 330 %SAT; 0.1 to 700 hPa (U-shape; 25 °C / 1013 hPa) |
| Process Temperature | 0 to 60/80 °C (C-shape/U-shape); sterilization max. 140 °C at 6 bar / 45 min |
| Process Pressure | 0.02 to 13 bar abs (0 to 190 psi) |
| Measurement Error | ±1% of measured value or ±8 µg/l (ppb), whichever greater |
| Ingress Protection | IP68 |
| Material | Stainless steel 1.4435 (AISI 316L) hygienic design |
| Applications | Fermentation, food/pharma hygiene, drinking water, inertization |
| Feature | Memosens 2.0 digital plug-in head; autoclavable / sterilizable optical spot |