Maintenance
94 Agilent 55B AA Spectrometer User’s Guide
Remove the nebulizer block
To remove the nebulizer:
1 Turn the flame off.
2 Allow the burner to cool.
3 Remove the burner.
4 Remove the length of capillary tubing from the nebulizer.
5 Pour about 500 mL of water through the top of the spray chamber to remove
toxic or corrosive waste out of the spray chamber drain tube and liquid trap.
WARNING
Corrosive Liquid, Toxic Hazard.
Contact with corrosive or toxic substances can result in death, or severe
personal injury or burns.
Always wear appropriate safety equipment and dispose of waste liquids
according to your local laws and regulations.
6 Detach the length of tubing from the liquid trap drain outlet. If fitted, detach the
length of tubing from the liquid trap vapor outlet.
7 Unscrew both knurled retaining screws on the side of the nebulizer block.
8 Pull the complete nebulizer/spray chamber assembly sideways until it is clear
of the mounting and remove the assembly from the sample compartment.
9 Remove the liquid trap:
Hold the nebulizer/spray chamber assembly firmly in one hand.
Twist the liquid trap in a counter-clockwise direction to unlock the bayonet
mount.
10 Hold the nebulizer/spray chamber assembly upside down, unscrew the plastic
drain tube from the bottom of the nebulizer block.
11 Separate the nebulizer block and spray chamber.
Hold the nebulizer block firmly in one hand and twisting the spray
chamber in a counter-clockwise direction to unlock the bayonet mount.
12 Disassemble the nebulizer as described in the following section.
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