6Site Preparation Guide
General Information
Instrument Identification
Each 5975 Series Mass Selective Detector (MSD) is identified by a unique
10-character serial number. This serial number is located on a label on the
lower left side near the front of the instrument. On CI upgrades, a second
serial number is located on the flow module.
When corresponding with Agilent Technologies about your instrument , be
sure to include the model number and both full 10-character serial numbers.
Write the serial number of your 5975 MSD here for reference:

5975 MSD versions

Table 1 shows the kinds of 5975 MSDs available. The product number on the
serial number label identifies your MSD.
This site preparation guide will refer to 5975 Series MSDs unless noted
otherwise.
Tabl e 1 5975 MSD versions
Model number Product number Pump type Ionization mode
5975 VL MSD G3170A Diffusion Electron Impact (EI) only
5975 inert MSD G3171A Standard turbo Electron Impact (EI) only
G3172A Performance turbo Electron Impact (EI) only
5975 inert XL MSD G3174A Performance turbo Electron Impact (EI)
Negative Chemical Ionization (NCI)
Positive Chemical Ionization (PCI
5975 Series Site Prep.book Page 6 Thursday, January 31, 2008 9:47 AM