Ntron Senz-Tx Operating Manual

SenzTx

Electrochemical Oxygen Analyzer

WITH 4-20mA ANALOGUE OUTPUT

Short Form User Manual

The

Table of Contents

1.1. General Information ........................................................................................................................ 3

1.1.2 Intended Use of the SenzTx ................................................................................................. 3

1.1.3 The Measuring Cell/Sensor Element ........................................................................ 3

1.1.4 Unintended Use of the SenzTx Analyzer ........................................................................... 4

1.1.5 Construction ............................................................................................................................ 4

1.1.6 Calibration of the Measuring Instruments ........................................................................... 4

1.2. Technical Description ..................................................................................................................... 5

1.2.1 Connection .............................................................................................................................. 5

1.2.2 Technical Data ........................................................................................................................ 5

1.2.3 Installation................................................................................................................................ 6

1.3. Maintenance and Calibration of Measuring Cells .................................................................... 8

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1.1. General Information

1.1.2 Intended Use of the SenzTx

The Analyzer are designed to monitor a sample containing an oxygen content to be measured within the specified ppm or % ranges.

The Analyzer can be used in combination with the control system (PLC) or as a standalone oxygenmeasuring-system.

1.1.3 The Measuring Cell/Sensor Element

This Analyzer uses an electrochemical measuring cell, which is specific to oxygen. There are nearly no cross sensitivities for other substances. But certain substances may damage the measuring cell or shorten its lifetime. The measuring cell is like a battery and is usually has an operating life of between one and two years, depending on Oxygen Hours exposure and or degree of exposure to aggressive gases/gas mixtures. Furthermore, the measuring cell may dry out in the extremely dry atmospheres necessitating early sensor replacement.

Note! Operating the ppm sensor at oxygen levels of >1000 ppm (e.g. in air) does not

damage the sensor element irreversibly, but it should be avoided. If exposed to air, it will take several hours until the sensor will measure low oxygen levels correctly in inert gas. Longer exposure to high oxygen concentration will shorten the lifetime of the sensor.

CAUTION

Risk of damage! The SenzTx should not be stored in a way that environmental air may

reach the Sensor. This will considerably shorten the lifetime of the cell and should be avoided.

The package should not be unwrapped until the SenzTx is ready to be put into service.

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