22 Hardware Installation
2 Installation
Overview
Installing the MSD system includes the following steps:
• Unpacking and inspecting shipped materials
• Installing the GC
• Installing the MSD
• Installing the computer and peripherals
• Integrating the GC and MSD
• Evaluating performance
• Familiarizing the customer with the system
Installing CI MSD systems requires additional steps:
• PFDTD calibrant added to calibration vial
• Methane/isobutane gas purifier installation
• Methane reagent gas line and gas purifier purge
• Methane reagent gas line hookup
After system performance has been verified in EI mode, the MSD must be
switched to CI mode and evaluated:
• Chemical ionization (CI) ion source and CI interface tip seal installation
• Bakeout and purge at least 2 hours
• CI setup
• Positive chemical ionization (PCI) autotune and sensitivity verification
• Negative chemical ionization (NCI) autotune and sensitivity verification
• High-mass autotune and sensitivity verification
The G3397A High Vacuum Gauge controller is required for CI operation.
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