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The Series 3500 Trace Oxygen Transmitter is a CE approved true two-wire transmitter offering an economical way to make accurate and dependable measurements of trace oxygen in a variety of gases. The Series 3500 Trace Oxygen Transmitter is both dustproof and waterproof, and is rated for NEMA 4 (IP66) service. The instrument is loop powered from 14-32 VDC, and provides a 4-20 mADC output that can be transmitted to a datalogger, recorder, PLC, DCS, etc. Internal shielding of the electronics offers excellent protection from EMI/RFI noise. Accessories for the Series 3500 Trace Oxygen Transmitter include a pressure regulator and in-line sample filter. An AC powered version (Series 3510), with optional sample pump, is also available. EXPLOSION PROOF VERSIONS NOW AVAILABLE!

CE Approved

The Series 3500 Trace Oxygen Transmitter features an advanced electrochemical oxygen sensor that provides exceptional performance, accuracy, and stability. In addition, the enhanced mechanical design of the sensor ensures longer life, and virtually eliminates leakage of caustic electrolyte, a nagging problem associated with sensors that require periodic electrolyte maintenance. And, because the sensor is sealed, it is not position sensitive. In addition, Alpha Omega Instruments oxygen sensors are temperature compensated to provide optimum performance over a wide range of operating conditions.
Some oxygen analyzers require the user to make manual adjustments (scale factor) to the instrument to compensate for certain changes in gas composition. Errors as large as 300% of the reading may exist if this factor isn’t changed, making the instrument a questionable choice for process applications. The Series 3500 Trace Oxygen Transmitters do not require any such adjustments and as such, are ideally suited for process monitoring and control applications.

FEATURES	BENEFITS
Wide Number of Ranges	Measure from <1 ppm to 10,000 ppm Oxygen.
Exceptional Speed of Response	Responds Instantaneously to Changes in Oxygen.
Rugged and Versatile Construction	NEMA 4 Housing Withstands Harsh Environments.
Economically Priced	Save Thousands of Dollars vs Other Methods.
Patented Electrochemical Sensor	Offers Exceptional Accuracy and Stability.
Sealed Sensor	Eliminates Having to Handle Liquid Caustic.

APPLICATIONS FOR THE SERIES 3500 TRACE OXYGEN TRANSMITTER
Heat Treating High Purity Gas Manufacturing Glove Boxes Inert Gas Generators Chemical Manufacturing Process Dryers UV Curing	Vessel Blanketing Petrochemical Processing Pharmaceutical Manufacturing Semiconductor Manufacturing Welding of Critical Components Copper Thick Film Furnaces Isolation Boxes

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Alpha Omega Instruments Corp.
30 Martin Street
Cumberland, RI, USA 02864-5361
TOLL FREE: (800) 262-5977
VOICE: (401) 333-8580 FAX: (401) 333-5550
info@aoi-corp.com

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