Source vacuum
Collision cell gas inlet
2.
Attach a nitrogen regulator to the nitrogen supply.
Requirement:
The nitrogen must be dry and oil-free, with a purity of at least 95%.
3.
Connect the free end of the 6-mm PTFE tubing to the nitrogen regulator.
4.
Set the nitrogen regulator to 690 kPa (6.9bar, 100 psi).
5.
Ensure that there are no gas leaks at any of the nitrogen gas supply fittings.
B.5 Connecting to the collision cell gas supply
Required materials
• Chemical-resistant, powder-free gloves
• 7/16-inch open-end wrench
• 1/8-inch Swagelok nut and ferrule
• 1/8-inch stainless steel tube (supplied with the mass spectrometer)
• Argon regulator (not supplied)
To connect the collision cell gas supply:
1.
Use the 1/8-inch Swagelok nut and ferrule to connect the 1/8-inch stainless steel tube to
the collision cell gas inlet on the rear of the mass spectrometer (see the figure in
Connecting to the nitrogen gas supply
).
2.
Use the 7/16-inch wrench to tighten the 1/8-inch Swagelok nut.
3.
Attach the argon regulator to the argon supply.
Requirement:
The argon must be dry and of high purity (99.997%).
4.
Connect the free end of the tube to the collision gas supply.
5.
Set the argon regulator to 50 kPa (0.5 bar, 7 psi).
B.6 Connecting the nitrogen exhaust line
Required materials
• Chemical-resistant, powder-free gloves
• Utility knife
June 9, 2016, 715004990 Rev. A
Page 199
