Teledyne CLASS A-5 | C06689-A5 Micro-Fuel Cell %O2 Sensor for CO2 Backgrounds
Teledyne CLASS A-5 (P/N C06689-A5) electrochemical oxygen sensor. Measures 0–25% O₂ in 0–100% CO2 gas streams, 45s response, for flue gas and combustion analysis.
Product Overview
The Teledyne CLASS A-5 (Part Number C06689-A5) is a micro-fuel cell (MFC) oxygen sensor specifically designed for percent-level oxygen measurement in gas streams containing high concentrations of carbon dioxide (CO₂). It is the standard replacement cell for combustion flue gas analyzers, boiler efficiency monitors, and process gas systems where acid gas resistance and stable performance in CO₂-rich environments are critical.
Technical Specifications (Performance & Electrical)
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Parameter
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Specification
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Manufacturer / Series
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Teledyne Analytical Instruments / CLASS A
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Model / Part Number
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CLASS A-5 (C06689-A5)
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Sensor Type
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Sealed Electrochemical Micro-Fuel Cell
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Measurement Range
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0 – 25 % O₂ (Standard Calibration)
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Background Gas
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0 – 100 % CO₂ (Specifically designed for CO₂-rich streams)
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Output Signal
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Current (µA), proportional to O₂ partial pressure
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Response Time (T90)
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≤ 45 seconds (90% of full scale)
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Expected Service Life
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~6 – 12 months (depending on O₂ exposure)
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Technical Specifications (Mechanical & Environmental)
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Parameter
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Specification
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Housing Dimensions
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Ø 1.25 inch (31.75 mm) × 0.75 inch (19 mm) thick
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Sensing Area
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Ø 0.7 inch (Large area to minimize condensation error)
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Electrical Connection
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2 concentric foil contacts (rear-mounted)
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Operating Temperature
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0 °C to +50 °C (32°F to 122°F)
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Sample Flow
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Diffusion-controlled (Unaffected by flow rate)
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Warm-Up Time
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< 2 minutes
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Key Feature
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CO₂-tolerant design, maintenance-free
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Key Features
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CO₂ Resistant: Specifically formulated for accurate O₂ measurement in flue gases and other streams containing 0–100% carbon dioxide.
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Maintenance-Free: Sealed, disposable design with no electrolyte refilling required.
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True Zero: Generates zero current in the absence of oxygen; requires no zero gas.
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Flow Insensitive: Diffusion-based operation is unaffected by sample flow rate variations.
Applications
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Combustion flue gas analysis (boilers, furnaces, heaters)
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Process gas monitoring in CO₂-rich environments
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Industrial safety and oxygen deficiency monitors in confined spaces
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Replacement cell for Teledyne 3000/300 series analyzers
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About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
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Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
