Instrument Installation 1
Step 4. Connect the Triple Quadrupole LC/MS
Agilent 6400 Series Triple Quad LC/MS System Installation Guide 25
Figure 18 Power and electrical connection at back left side of Triple Quadrupole LC/MS
(6420/6460A)
10 Set the pressure on the Collision Cell supply regulator at 10 to 30 psi
(70 to 210 kPa).
Remote start connection
LAN connection from
HUB/switch
AC line power
connection
Foreline pump power
cord connection/
Pump Expander
Assembly control
connection
Do not attach the Collision Cell gas fitting to the nitrogen supply regulator at 80 to 100
psi (550 to 690 kPa). Pressure to the Collision Cell Gas Flow Module greater than 30
psi (210 kPa) can cause fewer collisions to be available for secondary collision
induced dissociation (CID) and poor peak shapes, as well as poor high vacuum. The
Collision Cell can use the same nitrogen supply as the regular supply (i.e. for drying
gas, nebulizer, CDS pressure) if it is the required purity (99.999%) but it must be
down-regulated to 30 psi (210 kPa).
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