Teledyne TRACE OXYGEN ANALYZER 356WA - Manual (Page 5)

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T T T T Trace Oxyg race Oxyg race Oxyg race Oxyg race Oxygen Anal en Anal en Anal en Anal en Analyz yz yz yz yzer er er er er Introduction 1 Introduction 1 Introduction 1 Introduction 1 Introduction 1
Teledyne Analytical Instruments
Introduction Introduction Introduction Introduction Introduction
The Teledyne Analytical Instruments Model 356WA Trace Oxygen
Analyzer is designed to detect oxygen concentrations in process streams. It
utilizes Teledyne’s patented electrochemical sensor which requires minimal
maintenance and exhibits a 90% response in less than one minute. Cell
output is insensitive to flow rate changes within the operating range of the
analyzer’s flowmeter.
The Model 356WA features a welded stainless sampling system for
long-term, leak-free operation.
While the analyzer is offered in several configurations, they are virtually
identical with the exception of housing or options such as special meters. For
purposes of clarity, this manual will discuss the unit in general. The differ-
ences between the configurations are minor and will be obvious to the user.
1.1 1.1 1.1 1.1 1.1 Method of Operation Method of Operation Method of Operation Method of Operation Method of Operation
Gas from the process stream is fed through a sample line to the sample
inlet port of the analyzer. The sample is directed through the analyzer’s
sample system, where oxygen concentration is detected by the sensor. The
sensor generates an output signal which is read out on a suitable recorder or
meter.
The analyzer components include:
• A throttle valve and flowmeter to control sample flow
• A humidifier to condition the sample
• The measuring cell where catalytic conversion occurs
• An electronic amplifier circuit for converting the output of the
cell to a DC signal.
• A thermostatic assembly for temperature control in the cell
compartment
• A reservoir for providing make-up water to the humidifier.