Phymetrix PLMa, Руководство пользователя

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Table Of Contents
1 Introduction............................................................................................................................. 1
2
Important Principles of Operation .......................................................................................... 2
2.1 Sensor Operating Principle ............................................................................................. 2
2.2 Sampling Mechanism Operating Principle ..................................................................... 2
3 Precautions ................................................................................................................ 3
4 Moisture System Considerations ............................................................................................ 4
4.1 Integrity of the Materials of the User’s System .............................................................. 4
4.2 Moisture Back Diffusion (backflow) Along the Walls of the Exhaust Tubing .............. 4
4.3 Temperature Dependant Equilibrium ............................................................................. 5
5 Sampling Techniques.............................................................................................................. 5
5.1 Choosing a Measurement Site ........................................................................................ 5
5.2 Sample Conditioning ...................................................................................................... 5
5.3 Tubing and Fittings ......................................................................................................... 6
5.4 Sample Pressure .............................................................................................................. 6
5.5 Pressure Considerations .................................................................................................. 7
6 Installation............................................................................................................................... 8
6.1 Mechanical Installation................................................................................................... 8
6.1.1 PLMa Mechanical Installation................................................................................ 8
6.1.2 PLMaEx Mechanical Installation ........................................................................... 8
6.1.3 PLMa-Probe-Ex Mechanical Installation ............................................................... 8
6.2 Electrical Connections: Power, 4/20mA Analog Output, Serial I/O .............................. 8
6.2.1 Powering the PLMa , PLMaEx or PLMa-Probe-Ex ............................................... 8
6.2.2 Serial I/O RS-232.................................................................................................... 9
7 Digital Interface - HART ........................................................................................................ 9
8 Troubleshooting and Maintenance........................................................................................ 11
8.1 Cleaning ........................................................................................................................ 11
8.2 Self
Diagnostics ............................................................................................................ 11
8.3 Suspected Erroneous Measurements............................................................................. 11
9 Specifications........................................................................................................................ 13
9.1 Model PLMa ................................................................................................................. 13
9.2 Model PLMaEx and PLMa-Probe-Ex .......................................................................... 13
Appendix A PLMa Installation Drawing............................................................................... 14
Appendix B PLMaEx Installation Drawing .......................................................................... 16
Appendix C PLMa Probe Ex Installation Drawing............................................................... 17
Appendix D Dewpoint Display ................................................................................................ 19
Appendix E
Analyzer Calibration Log .................................................................................... 23
Revision #2
.1 August 2013