Thermo Scientific DSQ II, Руководство по оборудованию

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1
Basic Operations
Installing a Column into the GC/MS System
Thermo Scientific DSQ II Hardware Manual 9
d. Scroll to Leak Check Settings .
e. In the Check at press line, set the pressure at which the leak check will be performed.
The value must be between 10 and 999 kPa (1.45 and 145 psi).
f. In the Sensitivity line, set the maximum pressure drop that is allowed during the test.
The value must be between 1 and 10 kPa (0.145 and 1.45 psi).
g. Press CLEAR to exit the Leak Check Settings menu and return to the previous menu.
h. Select Start leak check to begin operation. The split and purge valves of the selected
channel are automatically closed and the channel is pressurized with carrier gas to the
leak check set point.
i. The system monitors the pressure for one minute. If the pressure does not drop more
than the maximum allowed sensitivity value, then the leak check will pass.
If the leak check did not pass, you should use the leak detector to find and fix the
leaks.
j. Repeat the column evaluation and leak check until no leaks are indicated.
L. COL. SETT.
Check Leak press 200
Sensitivity 5.0
L. COL. LEAK CHECK
Start leak check
Leak Check settings
CHECKING L COLUMN
Pressure (200)
Elapsed time 0.90
Use <STOP> to abort
Note To abort a leak check, you can press STOP .
R/L.LEAK CHECK
COMPLETED
SUCCESSFULLY
Leak check passed.
Tip Leaks can be caused by not tightening the fitting on the clear plastic
component. We recommend that you check that fitting before looking elsewhere.