Product Overview
Teledyne Galvanic Micro-Fuel Cell O2 Sensor - Acid Electrolyte, Full CO2 Background Tolerance, 45s Response
Condition
Unused NOS. Appears sealed with all components intact. Label confirms Class A-5, Cell S/N 509272, date code K9, Made in USA. C06689-A5 part number checkbox marked in ink on box label. Box shows age-related edge wear and discoloration consistent with long-term storage. Sourced from a government research facility.
Carefully packed and shipped same or next business day from our Idaho warehouse. Online since 1999. Honest equipment and straightforward service.
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Product Overview
Teledyne Analytical Instruments C06689-A5 is a galvanic micro-fuel cell oxygen sensor engineered for percent O2 monitoring in gas streams with zero restrictions on background CO2 concentration - including pure CO2 backgrounds. Built around a special acid electrolyte system that gives the A-5 its superior CO2 tolerance, it improves significantly on the earlier A-3 design in both CO2 handling and direct ambient air exposure resistance. The electrochemical cell converts oxygen concentration into an electrical signal readable by compatible Teledyne analytical process instruments. Compatible instrument families include the 3000 series, 3110, 3190, and 320P suites.
Key Features
- Application: intermittent or continuous percent O2 monitoring in 0-100% CO2 gas backgrounds
- Electrolyte system: special acid electrolyte for superior CO2 tolerance
- 90% step-change response time: 45 seconds
- Improved direct ambient air exposure resistance versus legacy A-3 iterations
- Compatible with Teledyne 3000 series, 3110, 3190, and 320P analytical process instruments
- Galvanic micro-fuel cell electrochemical transducer format
- Cell S/N 509272, date code K9, Made in USA
- CE marked
Applications
- Replacing a spent O2 sensor in a Teledyne percent oxygen analyzer during scheduled maintenance at a chemical plant or air separation unit - removing the old cell from the analyzer block and dropping in the C06689-A5 to restore accurate monitoring without interrupting the process line
- Continuous O2 monitoring in CO2-rich process streams such as those found in petrochemical reactors or fermentation gas analysis, where a standard sensor without acid electrolyte would produce drift or premature failure
- Laboratory gas analysis where samples are intermittently introduced and the cell may see ambient air between runs - the A-5's improved air exposure tolerance reduces recovery time and measurement error compared to older cell classes
- Quality assurance and R&D workflows requiring calibrated O2 readings in mixed gas samples with high CO2 content, integrated into a Teledyne 3110 or 320P analyzer
Frequently Asked Questions
Which Teledyne analyzers accept the C06689-A5?
The C06689-A5 is compatible with Teledyne Analytical Instruments' trace and percent oxygen analyzer families including the 3000 series, 3110, 3190, and 320P suites. Verify your specific analyzer model accepts the Class A-5 cell format before ordering.
What makes the A-5 different from the A-3 sensor?
The A-5 uses a special acid electrolyte system that provides improved CO2 tolerance with zero restrictions on background CO2 concentration, and handles direct ambient air exposure significantly better than the A-3. The 90% step-change response time for the A-5 is 45 seconds.
Are there gas types that will damage this sensor?
Yes. Gas streams containing strong oxidizing agents - iodine, bromine, chlorine, or fluorine - are incompatible with this cell and will interfere with its operation or damage it. The C06689-A5 is designed for CO2-background oxygen monitoring, not for streams containing those oxidizing species.
What is the shelf life concern for a surplus galvanic fuel cell?
Galvanic micro-fuel cells have a fixed chemical lifespan that begins once the cell is activated or unsealed. This unit appears sealed and intact based on visual inspection. Function testing has not been performed. Buyers should factor storage duration into their evaluation before committing the sensor to a critical process application.
Does this come with a manual or calibration documentation?
Not included. The sensor ships as pictured - the cell and its original box only.
A galvanic cell from a government lab shelf, still sealed, still waiting for the right analyzer and the right application. The acid electrolyte did not age out of its purpose - it just needs CO2 and an O2-bearing gas stream to go back to work.
