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E+H COS61 Digital Dissolved Oxygen Sensor

Categories Endress+Hauser Instruments
Place of Origin: DE
Packaging Details: carton
Certification: ATEX
Price: Negotiable
Payment Terms: T/T,Allipay,paypal
Brand Name: E+H
Monitoring Loop Quantity: 4~8 loops (configurable)
Measurement Accuracy: Current: ±0.5% FS; Voltage: ±0.5% FS
Display: LCD display, backlight optional
Delivery Time: 12-18 weeks
Supply Ability: 100pcs per month
Model Number: COS61
Input Signal: AC current: 0~5A; AC voltage: 0~450V
Protection Rating: IP20 (panel-mounted)
MOQ: 1
Operating Humidity Range: 10%~90% RH (non-condensing)
Communication Protocol: Modbus RTU (RS-485)
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E+H COS61 Digital Dissolved Oxygen Sensor

E+H COS61 Digital Dissolved Oxygen Sensor


Product Details:

Manufacturer : Endress+Hauser

Product No. : COS61

https://www.achievers-automation.com More Products


This industrial automation component is supplied for enterprise procurement .Made-to-order and forward delivery are supported, with pricing quoted per inquiry.

To reduce sourcing risk, each order is handled individually with support for model confirmation, condition clarification, and lead time estimation before order placement. Clear quotation terms and consistent communication are provided to help partners manage expectations and complete transactions with confidence. Additional verification or clarification is available when required, supporting professional procurement and long-term cooperation.


COS61 adopts classic polarographic electrode design with a semi-permeable oxygen membrane to selectively capture dissolved oxygen molecules in aqueous media, eliminating cross-interference from most common water-borne contaminants. Integrated Memosens digital architecture converts raw electrode signals directly at the probe head, separating analog measurement circuits from transmission cables to resist EMI/RFI noise in industrial plant environments. The fully sealed IP68 submersible housing enables long-term permanent immersion without regular retrieval, while standardized 12 mm probe diameter supports pairing with E+H FCPS flow cells and CYH submersible holders.

Detail:

Parameter ItemStandard Specification of Endress+Hauser COS61
BrandEndress+Hauser (E+H)
Full Model CodeCOS61
Product SeriesCOS Dissolved Oxygen Polarographic Sensor
Measurement PrinciplePolarographic dissolved oxygen electrode
Signal InterfaceMemosens digital non-contact inductive transmission
Measurable DO Concentration Range0 – 20 mg/L (0 – 200 % air saturation)
Measurement Accuracy± 0.2 mg/L (0 – 8 mg/L); ± 2.5 % FS (8 – 20 mg/L)
Integrated CompensationBuilt-in Pt1000 temperature sensor, automatic DO compensation
Medium Operating Temperature0 ℃ ~ 50 ℃ continuous immersion
Ambient Air Temperature-20 ℃ ~ +60 ℃
Maximum Submersion Pressure10 bar (100 m water depth)
Ingress Protection RatingIP68 (permanent full submersion)
Probe Outer Diameter12 mm standard industrial analytical probe size
Standard Probe Length Variants120 mm / 220 mm / 360 mm factory options
Membrane Cap Service Cycle6 – 12 months under typical wastewater conditions
Electrolyte Cartridge Lifespan12 months standard operation
Calibration StorageInternal Memosens chip stores up to 10 calibration datasets
Response Time T90< 60 seconds in clean aqueous media
Medium Flow Requirement≥ 0.05 m/s flow velocity for stable readings
Net Weight (220mm base length)165 g
Compliance StandardsIEC 60584, EPA 40 CFR water monitoring, RoHS, Memosens protocol standard


Component NameRaw Material GradeFunctional Description for E+H COS61
Main Wetted Probe ShaftAISI 316L Stainless SteelHigh corrosion resistance for wastewater, surface water and low-salinity industrial effluent, anti-sludge surface finish
Oxygen Permeable Membrane CapPP Polypropylene Frame + PTFE Semi-Permeable MembraneSelectively permeates oxygen molecules, blocks liquid ions and suspended solids, replaceable consumable component
Internal Electrode AssemblyPlatinum Cathode / Silver/Silver Chloride AnodePolarographic core electrode pair for dissolved oxygen redox reaction signal generation
Internal Electrolyte Filling SolutionPotassium Chloride saturated aqueous electrolyteStable ion conduction between cathode and anode, supplied in pre-filled replaceable cartridges
Memosens Inductive Head HousingReinforced PA66 UL94 V0 Flame Retardant PlasticSealed digital signal transmission cavity, non-contact cable connection without exposed metal contacts
Internal Pt1000 Temperature SensorPlatinum thin-film resistance elementReal-time medium temperature detection to correct temperature-dependent DO solubility errors
Probe Sealing O-RingsEPDM standard sealing elastomerWater-tight isolation of internal electronic components, resistant to algae cleaners and mild oxidants
Membrane Cap Lock ThreadAISI 316 Stainless Steel threaded collarHand-tightened lock structure for quick membrane/electrolyte replacement without specialized tools
Internal Signal PCB BoardFR4 high-temperature insulating printed circuit boardHosts Memosens memory chip and electrode signal conditioning circuits, fully potted waterproof construction
Cable Connection Inductive CoilCopper winding encapsulated in epoxy resinInductive signal coupling eliminates galvanic contact points to prevent corrosion at wiring joints




Brand

E+H is a global leader in providing measurement instruments, services, and solutions for the process and laboratory industries. Since its founding in 1953, the company has been committed to enhancing production efficiency, safety, and sustainability through innovative technologies. E+H’s product portfolio covers a wide range of areas, including flow measurement, level measurement, pressure and temperature measurement, analytical instrumentation, and data management. Its solutions are widely used in industries such as chemicals, food and beverage, oil and gas, power generation, and water and wastewater treatment.



Company Introduction:

Achievers Automation Limited has more than 10 years experience in the market of Industrial Automation, specialized in reselling factory sealed Probe, Sensor, DCS,isolator barrier, HMI, PLC,Adapter,Profibus connector and cable from Brands as BENTLY NEVADA, E+H, MTL, AB, Pepperl+Fuchs, YOKOGAWA, ASCO, Schneider, Lenze, Pro-face, Mitsubishi, Omron, Lenze, Delta, IFM etc. If you have any request, please do not hesitate to contact us.

Below are the TOP BRANDS we handle in the past 14 years:

FAQ of Achievers

Q:Are the Products Genuine OEM Units?

A: These items have been certified by Achievers Automation Limited to be genuine OEM Units obtained through OEM or independent third-party channels.

Q:How will you arrange shipment?

A: We can arrange shipment based on your request. We have cooperated forwader who can arrange shipment via FedEx, DHL,TNT with good price.

Q:What is the warranty of goods?

A: One-year Warranty.

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