Det-Tronics LS2000 - Page 2

Table of Contents
APPLICATION ............................ 1
OPERATION OVERVIEW.................... 2
Theory of Operation...................... 2
Detectable Gases........................ 2
Detection Ranges........................ 2
Standard Output......................... 2
Optional Relays ......................... 4
Optional Communication Link .............. 4
History Logs ............................ 4
OPERATION.............................. 5
Internal Magnetic Switch/Calibration Line
Terminal ........................... 5
Module Identication ..................... 5
Factory Reset Command .................. 5
Operating Modes ........................ 6
4-20 mA Current Loop Output .............. 6
Heater Control .......................... 7
Status and Fault Indication.................10
SPECIFICATIONS .........................10
IMPORTANT SAFETY NOTES................14
INSTALLATION............................14
Identication of Vapor(s) to be Detected ......14
System Location Considerations ............14
Module Mounting Recommendations.........16
Replacing an Existing Model OPECL with an
LS2000 .............................18
24 VDC Power Supply Requirements.........18
Wiring Cable Requirements ................18
Power Wiring Size and Maximum Length......18
Optional Relays .........................19
Wiring Procedure ........................19
STARTUP ............................... 22
ALIGNMENT............................. 23
Overview ............................. 23
Equipment Required .................... 23
Alignment Procedure .................... 23
Aperture Kit for Short Range Applications .... 25
Recommendations for using the HART Field
Communicator ....................... 26
Gain Level Check....................... 26
Transmitter Lamp Voltage................. 27
CALIBRATION ........................... 27
Calibration Overview .................... 27
Zero Calibration ........................ 27
Important Calibration Notes ............... 27
Calibration Initiation ..................... 28
Calibration Sequence.................... 28
MAINTENANCE .......................... 29
Routine Inspection ...................... 29
Optics Cleaning ........................ 29
Functional Checking..................... 29
Protective Caps and Covers ............... 29
TROUBLESHOOTING ..................... 30
REPLACING LS2000 TRANSMITTER/
RECEIVER ELECTRONICS MODULE ........ 31
Module Replacement Procedure ........... 31
DEVICE REPAIR AND RETURN ............. 32
ORDERING INFORMATION ................ 33
Alignment Equipment.................... 33
Accessories ........................... 33
Spare Parts ........................... 33
Assistance ............................ 33
APPENDIX A - FM APPROVAL DESCRIPTION . 35
APPENDIX B - CSA CERTIFICATION
DESCRIPTION........................... 37
APPENDIX C - OTHER APPROVALS ......... 39
APPENDIX D - HART COMMUNICATION ...... 40