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Figaro KE Series - User Manual

Figaro KE Series
10 pages
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Revised 09/22
1
TECHNICAL INFORMATION FOR KE-SERIESTECHNICAL INFORMATION FOR KE-SERIES
Technical Information for Maxell Oxygen Sensor KE-Series
The Maxell Oxygen Sensor
KE-Series is a unique galvanic
cell type oxygen sensor which
provides a linear output voltage
signal relative to percent oxygen
present in a particular atmosphere.
The sensor features long life
expectancy, excellent chemical
durability, and it is not inuenced
by CO2, making it ideal for
oxygen monitoring.
Page
Introduction...............................................................................................2
Basic Information and Specications
Features...............................................................................................2
Applications.......................................................................................2
Structure and Operating Principle.................................................2
Specifications.........................................................................2
Absolute Maximum Operating and Storage Conditions............3
Dimensions.................................................................................3
Typical Sensitivity Characteristics
Sensitivity to Oxygen...........................................................................4
Response Speed..............................................................................4
InuencefromVariousGases...........................................................4
Eectsof PressureChange......................................................5
Humidity Dependency...........................................................5
Temperature Dependency..................................................................6
Reliability
Inuence of Organic Solvents.....................................................6
Life Expectancy.................................................................................6
RelationshipofExpectedLifeandO2 Concentration..............6
RelationshipofExpectedLifeandStorageTemperature.........6
Long Term Stability...........................................................................7
Cautions.................................................................................................7
Limited Warranty and Limitation of Liability..........................................9
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Summary

Introduction

Basic Information and Specifications

Structure and Operating Principle

Explains the lead-oxygen battery structure and current flow proportional to oxygen concentration.

Specifications

Refers to Table 1 for detailed specifications of KE series sensors.

Absolute Maximum Operating and Storage Conditions

Defines the extreme conditions under which the sensors can operate or be stored.

Dimensions

Provides detailed physical dimensions and drawings for KE-25/KE-50 sensor models.

Cautions

Typical Sensitivity Characteristics

Sensitivity to Oxygen

Shows the sensitivity characteristics of KE sensors concerning oxygen concentration via graphs.

Response Time

Demonstrates the sensor's output voltage response pattern over time, with typical times specified.

Influence of Various Gases

Details the interference levels of various gases on KE sensor output, presented in a table.

Effects of Pressure Change

Humidity Dependency

Temperature Dependency

Reliability

Influence of Organic Solvents

Discusses how organic solvents can degrade sensor housing and affect performance.

Life Expectancy

Defines life expectancy in %-hours and provides expected life for KE-25 and KE-50 models.

Long Term Stability

Cautions

Required Oxygen Amount

Advises on air exchange rates to offset sensor oxygen consumption for optimal performance.

Mechanical Strength Against Shock and Vibration

Warns about shock and vibration affecting sensor sensitivity and suggests protective measures.

Position Dependency

Recommends keeping the sensor horizontal or vertical to prevent cathode drying.

Low O2 Concentration Detection

Advises considering offset voltage for accurate calculation at low O2 concentrations.

Storage Conditions

Provides guidelines for optimal storage to prolong sensor life, including temperature and atmosphere.

Influence of Condensation

Explains how condensation affects sensor output and response, with recovery noted.

Recommended Input Impedance

Specifies the required input impedance for connected equipment for proper compensation.

Sensor Connection

Details precautions for sensor connection, including avoiding counter-electromotive force.

Disassembly or Repair of the Sensor

Advises against disassembly due to potential changes in sensitivity characteristics.

Safety Measures for Electrolyte Leakage

Provides guidance on handling sensors with electrolyte leakage and first aid measures.

Disposal

When Designing Equipment Using KE-Series Oxygen Sensors

Limited Warranty and Limitation of Liability

Figaro KE Series Specifications

General IconGeneral
BrandFigaro
ModelKE Series
CategoryAccessories
LanguageEnglish