When trace oxygen measurements are needed for commissioning, maintenance, quality assurance, or process troubleshooting, portable instrumentation provides fast answers without requiring permanent installation.
The ALPHA OMEGA INSTRUMENTS™ Series 3520™ Portable Trace Oxygen Analyzer is a lightweight, battery-powered instrument designed for accurate ppm-level oxygen measurements in industrial and laboratory environments. Featuring a long-life ambient-temperature electrochemical sensor, an integrated sample pump, rechargeable batteries, and rapid response, the Series 3520 enables technicians and engineers to verify oxygen purity quickly and confidently whether checking nitrogen generators, inert gas systems, heat-treat furnaces, glove boxes, or specialty gas processes.
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Why Choose the Series 3520?
Benefits
- Portable trace oxygen analyzer
- 0–1,000 ppm oxygen measurement range
- Displays up to 19,999 ppm
- Battery-powered operation
- Rechargeable batteries with built-in charger
- Long-life electrochemical trace oxygen sensor
- Fast response (typically under 10 seconds)
- Integrated sample pump
- Built-in flowmeter
- Lightweight, compact design
- Durable polycarbonate enclosure
- Factory calibrated
- Low maintenance
- Ideal for field verification and spot measurements
High Performance Trace Oxygen Sensor
The Series 3520 Trace Oxygen Analyzer features our long-life ambient temperature electrochemical sensor that has a functional life of up to three times that of most “fuel cell” type sensors. The enhanced mechanical design of the sensor ensures longer life, and virtually eliminates leakage of caustic electrolyte, a nagging (and expensive) problem associated with sensors that require periodic electrolyte maintenance. And, because the sensor is sealed, it is not position sensitive. In addition, unlike ome electrochemical sensors, the readings from the Series 3520 do not require manual adjustment based on changes in the molecular weights of the sample gas i.e. helium, hydrogen, etc. a major advantage for continuous measuring applications. The output from the sensor is both
linear and temperature compensated to provide optimum performance.
Why Choose a Portable Trace Oxygen Analyzer?
Portable analyzers allow technicians to verify oxygen purity at multiple sampling locations without installing permanent instrumentation.
Benefits include:
- Immediate oxygen verification
- Fast troubleshooting
- Process commissioning
- Maintenance inspections
- Portable quality assurance
- Reduced downtime
- Flexible plant-wide measurements
Why the Long-Life Electrochemical Sensor?
The Series 3520 uses a sealed, ambient-temperature electrochemical sensor designed to provide significantly longer service life than many conventional fuel-cell sensors.
Benefits include:
- Up to three times longer functional life
- Sealed design with no electrolyte maintenance
- No position sensitivity
- Temperature-compensated output
- Linear response
- Lower maintenance costs
- Stable long-term performance
OXYGEN ANALYZERS RESOURCES AND MANUALS
Need service or calibration for your oxygen analyzer? No problem. We are ready to assist you with any technical or service-related inquiries.
Just complete our Oxygen Monitor RMA.
SALES | TRAINING INQUIRIES
AMERICAS: info.americas@process-insights.com
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CHINA: info.cn@process-insights.com
OUR TRACE & PERCENT OXYGEN Analyzers / OXYGEN DEFICIENCY MONITORS
Series 1000™
Series 1300™
ZRO 2000™
OXY-SEN™
Series 2000™
Series 2520™
Series 3000™
Series 3500 / 3510™
Series 3520™