OXY5500 Gas Analyzer Operating Instructions
Endress+Hauser 7
2.5 Documents provided with the OXY5500 analyzer
Each OXY5500 analyzer shipped from the factory is packaged with documents and software that are to be used for
system operation, as applicable to the system configuration. Typically, each shipment includes the following
documents:
• Operating Instruction (electronic copy)
• Sample Conditioning System (SCS) Operating Instruction (electronic copy)
• OXY5500 Service Software Operating Instruction (electronic copy) (and software)
• OXY5500 Safety Instruction (paper copy)
• Calibration Certificate (paper copy)
2.6 Manufacturer address
Endress+Hauser
11027 Arrow Route
Rancho Cucamonga, CA 91730
United States
www.endress.com
2.7 About the OXY5500 analyzer
The OXY5500 is a stand-alone precision oxygen analyzer enclosed in an ingress protected stainless steel case. The
rugged design and low power consumption makes the OXY5500 ready for an indoor or outdoor application in Class I,
Division 2, Groups A, B, C, and D, T3. In addition, the analyzer is also marked as II 3 G, Ex ec IIC T3 Gc IP66.
The OXY5500 is designed for three types of measurement ranges: 0 to 1000 ppmv, 0 to 5% O2, and 0 to 20% O2.
This analyzer was specifically designed for gas measurements using a flow through fiber-optic oxygen sensor
mounted in a 1/4 in. compression tee. The instrument LCD and data-logger are integrated into the system. The
analog outputs are programmable to provide data for oxygen and temperature. The digital interface and PC software
(included) are used for internal data storage and external data logging. Complete control, including all calibration
and adjustments, can be completed through the PC.
2.7.1 Temperature
Endress+Hauser’s optical oxygen sensors must be used with an RTD probe (Pt100 temperature sensor) in the
temperature ranges shown in Appendix A → . Each instrument is supplied with the RTD probe for compensation
and to record temperature variations.
2.7.2 Cross-sensitivity
The sensors can be used in methanol- and ethanol-water mixtures, as well as in pure methanol and ethanol.
Endress+Hauser recommends avoiding other organic solvents, such as acetone, chloroform, or methylene chloride,
which may swell the sensor matrix, rendering it unusable.
There are no cross-sensitivity issues with CO2, H2S, or SO2 (iconic species) pertaining to any of the three probe
types.
2.8 Getting familiar with the analyzer
Figure 1 shows a sample OXY5500 analyzer. Signal wiring and analyzer power are connected from the right side of
the analyzer (facing the unit). On the front panel of the analyzer, the LCD serves as the user interface to the analyzer.
The analyzer control electronics drive the sensor, collect the signal, and provide measurement output signals.
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