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7. GAS SAMPLING VALVE AND MULTI-INJECTION MODES ______________________________ 22
7.1 Gas sampling valve (without multi-injection) __________________________________________ 23
7.2 Multi-injection __________________________________________________________________ 24
8. DIALOG WITH THE INTERFACE __________________________________________________ 25
9. STORAGE INTERFACE _________________________________________________________ 26
9.1 Control and maintenance__________________________________________________________ 27
9.2 Changing the IP address of the interface______________________________________________ 28
9.3 Manual mode ___________________________________________________________________ 29
9.3.1 Analysis parameters ___________________________________________________________ 30
9.3.2 Storage parameters____________________________________________________________ 31
9.3.3 Washing parameters ___________________________________________________________ 31
9.3.4 Options _____________________________________________________________________ 32
9.3.5 Gas sampling parameters _______________________________________________________ 32
9.3.6 Multi-injection parameters ______________________________________________________ 32
9.4 Error and fault messages __________________________________________________________ 33
10. MAINTENANCE OPERATIONS__________________________________________________ 34
10.1 Maintenance schedule ___________________________________________________________ 34
10.1.1 After each experiment ________________________________________________________ 34
10.1.2 Every week _________________________________________________________________ 34
10.1.3 Every month ________________________________________________________________ 34
10.1.4 Every 6 months ______________________________________________________________ 35
10.2 Typical cleaning after an experiment________________________________________________ 35
10.3 Clean the valve and rotor_________________________________________________________ 36
10.3.1 Disassembly the valve _________________________________________________________ 36
10.3.2 Clean the inside of the valve body _______________________________________________ 37
10.3.3 Clean the rotor ______________________________________________________________ 37
10.3.4 Change tubing or fitting _______________________________________________________ 38
11. LOCATE THE ORIGIN OF THE PROBLEM__________________________________________ 38
11.1 Flow/pressure problem with GC ___________________________________________________ 40
11.1.1 Find the origin of the problem __________________________________________________ 40
11.1.2 There is a leak on the IST16 side_________________________________________________ 41
11.2 Problem of flow restriction _______________________________________________________ 44
11.2.1 Find the problem_____________________________________________________________ 44
11.2.2 Clean the inside of the IST16____________________________________________________ 45
11.3 Problem of memory effect ________________________________________________________ 46
