Checking Your Carrier Gas Tank Pressure; Verify Collision Gas Tank Pressure; Checking The Vacuum And Temperature - Thermo Scientific TSQ 8000 Evo User Manual

1
Introduction
Confirming Your Instrument is Working

Checking Your Carrier Gas Tank Pressure

Verify Collision Gas Tank Pressure

Checking the Vacuum and Temperature

4 TSQ 8000 Evo User Guide
Make sure you have enough pressure in the carrier gas tank to accommodate the number of
samples you plan to run. If the pressure is too low, you might run out of gas in the middle of
a run, which could compromise the results of your data.
 To check your carrier gas tank pressure
1. Locate your carrier gas tank. It might be in a different room, depending on how your lab
is set up.
2. Look at the pressure gauge on the tank.
3. Ensure the pressure is more than 100 psi at the primary (or first) regulator stage. If it is
not, you may want to replace the tank if you have to run a lot of samples.
Check that the input pressure of your collision gas is at 59–61 psig for Argon or 56–58 psig
for Nitrogen and that the tank is connected to the mass spectrometer.
CAUTION Collision gas input pressure must remain constant for proper instrument
performance. The regulator used to supply the collision gas must be able to deliver
60 ± 1 psig. Ensure that the regulator is marked clearly at 60 psig and is stable enough to
supply constant pressure at 60 ± 1 psig.
Use the lights on the front of your TSQ 8000 Evo system to check the vacuum and
temperature of the instrument.
To check the vacuum, look at the Vacuum light. See
the mass spectrometer is under sufficient vacuum. If the Vacuum light is slowly blinking
orange, you have not yet achieved vacuum. If the Vacuum light is blinking orange quickly,
you have a large leak that has prevented the instrument from achieving vacuum. In this case,
you must turn the power off and find and fix the leak. Most likely, the column nut must be
tightened, the column was not installed correctly, or the vent valve was not completely closed.
See Troubleshooting for more information.
Figure 3. When the light is a solid green,
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