Hardware manual

4-44 Agilent 7500 Series ICP-MS Hardware Manual
4Maintenance
Cleaning the PFA Concentric Nebulizer
The carrier gas pressure is generally 200 to 300 kPa at a 1.0 L/min carrier gas
flow rate. The argon gas supply pressure has to be set to 700 kPa. If the carrier
gas pressure rises to more than 300 kPa, the nebulizer may become clogged.
The spray section of the nebulizer is designed as a microstructure. Please do
not under any circumstances wash ultrasonically.
Figure 55 PFA Concentric Nebulizer
CAUTION
A wire or similar material must not be used to clear a clogged concentric nebulizer or
the nebulizer will be damaged and may be rendered unusable.
Sample Tube
Gas Tube (Carrier Gas)
Makeup Gas Line
Makeup Gas Connector
End Cap
O-ring
Nebulizer Holder Nut
PFA Concentric Nebulizer
Union Joint Assy