Thermo Scientific Vanquish VF-D20, Operating Manual, Page: 128 / 182

7 • Maintenance and Service
Page 128 Vanquish Charged Aerosol Detectors Operating Manual
7.7 Removing the Nebulizer
CAUTION—Sharp Tip of Nebulizer Capillary
The fused-silica capillary inside the nebulizer protrudes from the
nebulizer tip. The nebulizer capillary is fragile and sharp and can cause
personal injury and damage to the capillary. To avoid personal injury,
always wear safety glasses when handling the nebulizer. Do not touch
the nebulizer tip. Handle the nebulizer with care.
CAUTION—Escaping Gas
Gas can escape from open gas connections when the detector gas flow
and/or the gas supply is turned on. The escaping gas can pose a health
and safety risk.
Make sure that the detector gas flow and the gas supply are turned off
before you remove the nebulizer, disconnect the gas tubes or remove
the gas filter assembly from the detector.
Turn on the gas supply and detector gas flow only when the nebulizer is
installed, the components in the gas flow path are properly connected,
and the protective cover of the gas filter assembly is installed.
NOTICE The nebulizer is highly sensitive to contamination. Even minute
particles on the nebulizer can lead to contamination and poor detector
performance. Always wear clean-room gloves when you install or
remove the nebulizer.
Preparations
1. Flush the detector with the detector gas flow being turned on. For
recommendations on flushing the detector, see section 7.4.2
Flushing the Detector Between Analyses, page 121 .