iv | Model 241CE II Hydrocarbon Dewpoint Analyzer
Highest Measurable Dewpoint ..................................................................................... 2-3
Environmental ................................................................................................................. 2-4
Humidity .................................................................................................................... 2-4
Maximum Altitude ................................................................................................... 2-4
Cooling Capability .......................................................................................................... 2-4
Minimum Clearances ..................................................................................................... 2-4
Dry Gas Supply (Purge Air) ........................................................................................... 2-5
Approvals and Certifications ......................................................................................... 2-5
ATEX and IECEx Certificates and Analyzer Markings .............................................. 2-6
CSA Certificate and Analyzer Marking ..................................................................... 2-14
CHAPTER 3 INSTALLATION AND START-UP ................................................................... 3-1
Safety Considerations ..................................................................................................... 3-2
Pre-Installation Requirements.......................................................................................3-2
Storage Prior to Installation ....................................................................................3-2
Uncrating and Inspecting the Analyzer ................................................................ 3-3
General Installation Information ........................................................................... 3-4
Tools, Equipment, and Supplies Required ........................................................... 3-4
Installing the Mechanical Components ....................................................................... 3-6
Installing the Analyzer ............................................................................................. 3-6
Location and Environment ................................................................................... 3-6
Installing the Heatsink/Measuring Cell Assembly ..............................................3-9
Installing the Sample System .............................................................................3-11
Sample System Prerequisites .......................................................................3-12
Installing the Sample Probe .........................................................................3-13
Installing the Sample and Vent Lines ..........................................................3-14
Installing and Connecting the Purge Gas Line ..................................................3-16
Checking the Fuses ....................................................................................................... 3-17
Connecting the I/O Signals, Alarm Relay Contacts, and AC Power ..................... 3-18
Analog Input Terminals ......................................................................................... 3-19
Analog Output Terminals ...................................................................................... 3-20
Alarm Relay Terminals ........................................................................................... 3-22
Configuring the Hardware for Digital Communication .................................. 3-23
Digital Communication Protocol .......................................................................3-25
AC Power Connections .......................................................................................... 3-26
North American Installation ..............................................................................3-27
European Installation .........................................................................................3-27
Start-Up and Verification ............................................................................................. 3-28
Powering Up the Model 241CE II Analyzer ....................................................... 3-28
Displayed Signals (RUN Menu Scroll Sequence – Quick Reference) ................ 3-29
About the Measuring Cycle ................................................................................ 3-30
Purging/Hold Stage .....................................................................................3-31
Cooling Stage ...............................................................................................3-33
Warming Stage ............................................................................................3-35
Sample System Leak Check .................................................................................. 3-36
Adjusting the Sample Gas Flow Rate .................................................................. 3-38
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