the instrument for air circulation, the vacuum pump hose, and electrical
connections; and 48 cm (1.6 ft) of space in front to allow for the RIS probe
extraction tool handle (7200 Q-TOF) when installed.
7200 Q-TOF 133 cm (4.4 ft)
7250 Q-TOF 190 cm (6.2 ft)
Q-TOF
Figure 3
Front view of example installation. 7890B GC/7250 Q-TOF MS system with 7693A ALS shown.
Note that the length of the quadrupole vacuum hose is 130 cm (4 ft 3 in) from
the high vacuum pump to the foreline pump, and the length of the foreline
pump power cord is 2 m (6 ft 6 in).
GC, GC/MS, and ALS Site Preparation Guide
Flight tube
7693 ALS
7890B GC
197 cm (6.5 ft)
7890 Series GC Site Preparation
17