SRS Labs QMS 100 Series, Руководство пользователя

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SRS QMS Gas Analyzer
Fast Start
• Connect the power cord to the
QMS
. Set the four switches on the control panel to off and turn
on the main power switch.
• Turn on the diaphragm pump switch and the turbo pump switch. The pumps should begin the
startup sequence, which takes several minutes. When both green lights on the display are bright
the system is ready to operate.
• Connect the serial cable between the RGA and an available COM port on the computer (typically
COM2).
• Install the QMS software on the computer by inserting the first disk and executing the SETUP
program.
• Start the QMS program. Under the Utilities menu, choose “RS232 Setup...”. In the dialog box
that appears, choose the COM Port that the QMS is connected to and then press the “Connect”
button. After a short initialization, the QMS is ready. To confirm communications, under the
“Head” menu choose “Get Head Info...”. A box will appear showing information about the QMS.
• Click the filament button ( ) on the toolbar to activate the ionizer. Click the GO button on the
tool bar and a scan will begin from 1 to 50 amu. The mass spectrum will show a rough
background spectrum.
• Click the filament button ( ) on the toolbar to deactivate the ionizer.
• Loosen the inlet fitting and remove the plug. Attach the capillary inlet and tighten the fitting
(finger tight; no tools are required).
• Turn off the Turbo Pump switch and wait for the green light to extinguish. Next, set the
Capillary Flow Valve to open. With the flow started, the Turbo Pump switch can be turned back
on. Initially, the pump will not start and the light will blink. The pump will start as soon as the
pressure falls below 5 mbar. When the pump and capillary flow are started, the first three lights
will be on and bright. In the software, select the Utilities|Pressure Reduction menu item and enter
the Pressure Reduction Factor for the capillary. Check the box to enable the factor.
• Set the sample flow switch on the control panel to open. Restart the filament and perform a scan.
The spectrum of air will be displayed, which can be compared to the example below.
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73
-1
1.0x10
0
1.0x10
1
1.0x10
2
1.0x10
3
1.0x10
m/z
mBar
Air Scan