OXYvisor™ Oxygen Analyzer

Description

Process Oxygen Analyzer (2’nd Gen) for Industrial Process Control & Monitoring of trace O2, %O2 and Dissolved Oxygen

OXYvisor O2 Analyzer Introduction

The OXYvisor is a process oxygen analyzer, best utilized to measure oxygen concentration in continuous, online, process monitoring and control applications. It is commonly referred to, as a O2 analyzer, oxygen meter, dissolved oxygen meter or DO meter.

The device utilizes an optical quench luminescent technique to measure oxygen concentration by volume (ppmv, molar basis) in gas phase or dissolved oxygen measurement (ppbv, ppmv) in liquid and aqueous phase applications. The oxygen meter is coupled, via a flexible fiber optic cable, of optional lengths, to a small external oxygen sensor that can be placed into an extracted sample stream, or directly in-situ to the process stream as a gaseous oxygen sensor or when used in liquids as a dissolved oxygen probe dissolved probe or optical DO sensor.

OXYvisor Industrial Applications

The OXYvisor is intended to measure oxygen concentration, in a wide array of industries and applications. Extensive North American (NEC/CEC) and international (IEC Ex/ATEX) hazardous locations and safety certifications, along with its robust industrial design, allow for use indoors, outdoors and within laboratories. The analyzer is used in the Oil & Gas (upstream/midstream, offshore, refining & petrochemical) hydrocarbon industry along with manufacturing (annealing furnaces, fiber optic production, contact lenses, etc.) and Renewable Energy Production (biogas & ethanol) markets.

Common applications for upstream and midstream, are trace O2 (ppm) in VRU’s, Gathering Lines, Booster/Compression Stations, Gas Plant Inlets and Custody Transfer points along with CO2 lift and floodwater for Enhanced Oil Recoveries (EOR). Whereas common applications for downstream include nitrogen headers, tank blanketing, anaerobic digesters and Mercaptan oxidation (MEROX).

Why OXYvisor is Ideal for Oxygen Measurement Applications?

OXYvisor’s optical technique is an ideal technology for many of these applications, due to its ability to accurately measure in applications with high moisture or contaminants like H2S, CO2 and H2 with high reliability. It has no electrolyte to poison, no membrane to plug or foul, and is good to operate with high moisture and in liquids. This makes the OXYvisor an ideal upgrade for older technologies, such as paramagnetic analyzers, electrochemical cells (e.g. fuel cells, galvanic dissolved oxygen sensors, amperometric probes & amperometric gas sensors) and even in some cases, zirconia and Tunable Diode Laser (TDL) based technologies.

Features of OXYvisor Process Oxygen Analyzer

• Measures the oxygen concentration of process or sample in either
  • Gas phase – capable range of trace ppm, 0.5 ppm, to percent level oxygen
  • Liquid phase – capable range of trace, 1 ppb, to high ppm level dissolved oxygen (D.O.)
• Oxygen concentration measurement and calibration is temperature and pressure compensated
  • Temperature Input: Pt1000 RTD
  • Pressure Input: Standard on-board ambient pressure sensor or external 4-20 mA loop powered input
• Measurement accuracy, drift, and lifetime not affected by %H2S, CO2, SO2 and H2
• Standard calibration uses two-point, zero & span calibration gases
• Standard unit capable of Auto-Calibration and Remote Validation
• Rugged IP66, NEMA 4x enclosure with ambient operation -20 to 55 C
• Hazardous area approvals
  • Zone 1 & Zone 2 (IEC/ATEX/CEC/NEC)
  • Class I, Div 2 – (cULus)
• OXYvisor PC software for configuration, set-up, diagnostic and trending
• USB data trend storage (.csv file)
• Works with all BOSx oxygen sensors
  • FiberSense (original), a small 4 mm optical fiber integral O2 sensor for use in 1/4” tube fittings
  • FlexSense I & II (inline flow cell) with simple replaceable BOSx sensor caps
  • SafeTap Insitu (insertion/retraction), with simple replaceable BOSx sensor caps
• Local display HMI, with through-the-glass operation allows setup and configuration

Advantages of OXYvisor Process Oxygen Analyzer for Biogas Production

Advantages of optical oxygen sensors in biogas production include no interference due to moisture, H2S, CO2, and other contaminant gases. The OXYvisor simplifies the sample system design as the contaminant gases do not need to be scrubbed prior to the measurement. In many cases the end user is able to eliminate the highly problematic sample system by going in-situ with the BOSx SafeTap. The end result is increased reliability, better accuracy, and faster response in biogas applications.