3020T
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Catalog excerpts

TELEDYNE ANALYTICAL INSTRUMENTS Operator Interface All controls and displays on the standard 3020T are available from outside the housing. The instrument has two simple operator controls. A digital meter, an alphanumeric display, and a sample flowmeter give the operator constant feedback. Standard Features • An explosion proof NEMA 4/7 rated enclosure • A 2-line alphanumeric display screen, driven by microprocessor electronics continuously prompting and informing the operator • High resolution, accurate readings of oxygen content from low ppm levels through 25%. • Advanced Micro-fuel Cell designed for trace analysis, with a one year warranty and an expected life of two years MODEL 3020T Process Trace Oxygen Analyzer eledyne’s Model 3020T Trace Oxygen Analyzer is a microprocessor-based instrument for detecting oxygen at the parts-per-million (ppm) level in a variety of gases. This instrument serves as the explosionproof, bulkhead-mount version of the 3000 Series. Simple menu choices, externally accessible command switches, and dual LCD and LED displays make setup and operation clear and quick. Analysis Ranges Three user-configurable ranges are standard, with an excellent linearity precluding the need to recalibrate when changing ranges. Two fully programmable concentration alarms satisfy nearly any requirement. All features offer a sophistication that assures the 3020T will provide years of service. Convenient Outputs For Data Two standard 0-1 VDC outputs and two 4-20 mADC isolated outputs provide both concentration and range identification. A bi-directional RS-232 serial interface is incorporated to relay information to a host computer for remote monitoring of critical functions. • Versatile analysis over a wide range of applications • Microprocessor based electronics: 8-bit CMOS microprocessor with 32kB RAM and 128kB ROM • Three user-definable output ranges (from 0-10ppm through 0250,000 ppm) assuring a perfect match for the user’s process. • Air-calibration range for convenient spanning at 20.9% • Auto-Ranging automatically selects the proper preset range for a given measurement. Manual override allows the user to lock onto a specific range of interest. • Two adjustable concentration alarms and a system failure alarm • Extensive self-diagnostic testing at start-up and on demand with continuous power-supply monitoring • Two way RS-232 serial digital port for use with a computer or other digital communication device • Four analog outputs; two for measurement (0-1VDC and Isolated 4-20mADC) and two for range identification Applications • Monitoring inert gas blanketing • Air separation and liquefaction • Chemical reaction monitoring • Semiconductor manufacturing • Petrochemical process control • Quality assurance Built for Reliability and Performance

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MODEL 3020T TRACE OXYGEN ANALYZER Specifications Area Classifications: Explosion proof enclosure is U/L and CSA listed for Class I, Division 1, Groups B, C, D service NEMA 4/7 rated Bulkhead mounting 3 customer programmable ranges (minimum 0-10ppm) with AutoRanging Calibration range: 90% of FS at 77ºF (25ºC) in less than 65 seconds Integrally mounted cal/zero valves Plumbed for vacuum service Operating temperature: Flame arrestors for Class I, Div 1, Group C/D service Signal output: Analytical measurement - 0-1 VDC and 4-20 mADC (isolated) Flame arrestors for Class I, Div 1, Group C/D...

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