Section I - Installation and Startup
INSTALLATION...............................................................2
Sensor Location........................................................2
Wiring Requirements ................................................2
Model 505 Wiring......................................................3
Sensor Separation....................................................3
Sensor Voltage Adjustment ......................................4
Replacing an Existing K Series or Model 500
Transmitter with a Model 505 ............................5
STARTUP PROCEDURE................................................5
CALIBRATION ................................................................6
Calibration Procedure...............................................6
Calibration using K-Factors ......................................6
Section II - Description and Operating Characteristics
DESCRIPTION................................................................8
Sensor ......................................................................8
GENERAL APPLICATION INFORMATION ....................8
SENSOR RESPONSE ....................................................8
FACTORS AFFECTING SENSOR SENSITIVITY.........10
SPECIFICATIONS ........................................................10
Transmitter .............................................................10
Catalytic Sensor .....................................................12
Section III - System Maintenance
TROUBLESHOOTING ..................................................12
ROUTINE MAINTENANCE ...........................................13
Checkout in Normal Mode ......................................13
Sensor Inspection...................................................13
Sensor Sensitivity ...................................................13
Sensor Replacement ..............................................13
REPLACEMENT PARTS ..............................................14
DEVICE REPAIR AND RETURN ..................................14
Office Locations......................................................14
ORDERING INFORMATION.........................................15
Transmitter .............................................................15
Sensor ....................................................................15
Accessories ............................................................15
Calibration Kits and Replacement Cylinders ..........16
APPENDIX A.................................................................17
APPENDIX B.................................................................18
List of Illustrations
Figure 1 Model 505 Transmitter Wiring Without
Sensor Separation .....................................3
Figure 2 Model 505 Transmitter with Sensor
Termination Box .........................................4
Figure 3 Location of Switches and Potentiometers
on Transmitter Circuit Board ......................5
Figure 4 Transmitter DC Current Output ..................8
Figure 5 Typical Response of a Catalytic Sensor
over a Range of 0 to 100% Methane
by Volume ..................................................9
Figure 6 Effect of Oxygen Enriched and Deficient
Atmospheres ..............................................9
Figure 7 Dimensions of Transmitter Junction Box
in Inches (CM) 2 Ports, āLā Configuration
Model .......................................................11
Figure 8 Dimensions of Transmitter Junction Box
in Inches (CM) Multiport Model ................11
Figure 9 Dimensions of Sensor in Inches (CM)......12
List of Tables
Table 1 Maximum Sensor Separation Distances ....4
Table 2 Calibration Procedure ................................7
Table 3 Troubleshooting Guide.............................13
Table of Contents
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