Starting The Data System; Starting The Mass Spectrometer - Thermo Scientific LTQ Series Hardware Manual

3
System Shutdown, Startup, and Reset
Starting the System after a Complete Shutdown

Starting the Data System

Starting the Mass Spectrometer

38 LTQ Series Hardware Manual
 To start the data system
Turn on the computer, monitor, and printer, if provided.
Make sure that the data system is running before you start the mass spectrometer. The mass
spectrometer does not operate until it receives instructions from the data system.
 To start the mass spectrometer
1. Turn on the flows for the helium and nitrogen gases at their tanks, if they are off.
2. Turn off the Main Power switch and place the electronics service switch in the Service
Mode (down) position.
3. Plug in the power supply cord for the mass spectrometer.
4. Turn on the Main Power switch.
This turns on the one or two forepumps, respectively, and the turbomolecular pump. All
LEDs on the front panel are off.
5. Wait at least 1 hour to allow the mass spectrometer to pump down.
6. Place the electronics service switch in the Electronics Normal (up) position.
The following occurs:
• The Power LED on the front panel turns green to indicate that the electronics have
power. However, the electron multipliers, conversion dynodes, 8 kV power to the
API source, main rf voltage, and ion optic rf voltage remain off.
• The embedded computer boots. After several seconds the Communication LED
turns yellow to indicate that the data system and the mass spectrometer have started
to establish a communication link.
• After several more seconds, the Communication LED turns green to indicate that the
data system and the mass spectrometer have established a communication link. Make
sure that the instrument console window is active. The data system transfers
operational software to the mass spectrometer.
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