WARNING:
SHOCK HAZARD
Dangerous high voltages are present. Unplug power cord.
2. Follow the replacement procedure included with the Turbo Replacement Kit.
3. Turn On the Mass Spectrometer (page 46) but DO NOT Start System
control. The turbomolecular pump will go through a SoftStart conditioning
process that will take about 30 minutes.
4. After 30 minutes start up System Control and go to the Startup/Shutdown
page if this doesn’t happen automatically.
5. Go to “Checking the Vacuum Status” on page 48.
6. Go to “Baking Out the Mass Spectrometer” on page 49.
Filling the Calibration Compound Vial
•
The calibration compound used with the 4000 MS is
perfluorotributylamine (PFTBA), which has the chemical formula C
12
F
27
N.
This compound is also known as FC-43 (fluorocarbon-43).
NOTE: There is no need to vent the vacuum system before you fill the Cal Gas
vial with calibration compound, provided the Cal Gas needle valve is closed. To
close the Cal Gas needle valve, turn it fully clockwise.
To fill the Cal Gas vial, proceed as follows:
1. Loosen the two retaining screws about 2-3 turns with a Phillips screwdriver.
2. Pull the Cal Gas vial down gently with a slight twisting motion until it clears
the pneumatics manifold.
3. Refill the vial using a Pasteur pipette until the vial is filled just less than one
half full with PFTBA compound (03-920353-00). Care must be taken not to
overfill the vial to avoid inconsistent Cal Gas flow. Excess PFTBA can be
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Summary of Contents for 4000 GC
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