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3290
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Teledyne 3290 - Page 3
47 pages
Manual
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Percent Oxygen Analyzer
Teledyne
Analytical
Instruments
iii
S
pecific Model Information
Instrument Serial Number:
_______________________
Instrument Range:
_______________
Background Gas:
_______________
Span Gas:
_______________
2
4
Table of Contents
Main Page
Default Chapter
6
Table of Contents
6
List of Figures
8
List of Tables
9
Introduction
11
Overview
11
Main Features of the Analyzer
11
Front Panel Description
12
Figure 1-1: Front Panel
12
Rear Panel Description
14
Figure 1-2: Rear Panel (AC and DC Versions)
14
Operational Theory
17
Introduction
17
Oxygen Sensor
17
Principles of Operation
17
Anatomy of the Oxygen Sensor
18
Figure 2-1: Basic Elements of the Oxygen Sensor (Not to Scale)
18
Electrochemical Reactions
19
The Effect of Pressure
20
Calibration Characteristics
21
Figure 2-2: Input/Output Curve for a Typical Oxygen Sensor
21
Electronics
22
General
22
Signal Processing
22
Figure 2-3: Block Diagram of the Signal Processing Electronics
23
Installation
25
Unpacking the Analyzer
26
Location and Mounting
26
Control Unit Installation
26
External Probe Installation
26
Installing the Oxygen Sensor
27
Electrical Connections
27
Figure 3-1: Rear Panel Electrical Connectors for AC & DC Units
28
Figure 3-2: Contact Identification for FAILSAFE Relay Operation
30
Gas Connections
31
Installation Checklist
32
Operation
33
Figure 4-1: Front Panel Controls and Indicators
33
Using the Function and Data Entry Buttons
34
Setting the Analysis Ranges
34
HI Range
35
LO Range
35
Setting the Alarm Setpoints
35
HI Alarm
35
LO Alarm
36
Sensor Fail Alarm
36
Selecting a Fixed Range or Autoranging
36
Calibration
36
Maintenance
39
Replacing the Fuse
39
AC Powered Units
39
Figure 5-1: AC Fuse Replacement
39
DC Powered Units
40
Sensor Installation or Replacement
40
When to Replace a Sensor
40
Ordering and Handling of Spare Sensors
41
Removing the Oxygen Sensor
42
Installing the Oxygen Sensor
42
Cell Warranty Conditions
43
Appendix
45
Specifications
45
Spare Parts List (Standard Version)
46
Drawing List (Standard Version)
47
Miscellaneous
47
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