APPLICATION ............................................................1
OPERATION OVERVIEW ..........................................2
Theory of Operation .............................................2
Lamp Redundancy ...............................................2
Detectable Gases.................................................2
Standard Output ...................................................3
Optional Relays ....................................................3
Communication ....................................................3
Recording Capability ............................................3
Detection Range...................................................3
OPERATION...............................................................4
Module Identification ............................................4
Operating Modes..................................................5
4-20 mA Current Loop Output ..............................5
Fault Indication .....................................................5
SPECIFICATIONS ......................................................6
IMPORTANT SAFETY NOTES ..................................9
INSTALLATION ..........................................................9
Identification of Vapor(s) to be Detected ..............9
System Location Considerations..........................9
Module Mounting Recommendations.................10
24 VDC Power Supply Requirements ................11
Wiring Cable Requirements ...............................11
Power Wiring Size and Maximum Length ..........12
Optional Relays ..................................................12
Wiring Procedure................................................13
STARTUP .................................................................16
ALIGNMENT .............................................................16
Overview ............................................................16
Basic Alignment Procedure ................................16
Fine Alignment Procedure..................................19
CALIBRATION ..........................................................20
Calibration Overview ..........................................20
Important Calibration Notes................................20
Calibration Initiation............................................20
Detailed Calibration Procedure using Magnetic
Switch.................................................................21
MAINTENANCE........................................................21
Routine Inspection..............................................21
Optics Cleaning ..................................................21
Protective Caps and Covers...............................21
TROUBLESHOOTING..............................................22
DEVICE REPAIR AND RETURN .............................22
ORDERING INFORMATION ....................................23
Open Path Eclipse Detector ...............................23
Alignment Equipment .........................................23
Accessories ........................................................23
Spare Parts ........................................................23
Assistance ..........................................................23
APPENDIX A - HART COMMUNICATION..............A-1
APPENDIX B - CONTROL DRAWING ...................B-1
Table of Contents