Thermo Scientific Vanquish VF-D20, Operating Manual, Page: 92 / 182

6 • Operation
Page 92 Vanquish Charged Aerosol Detectors Operating Manual
6.5 Preparing the Detector for Operation
This section gives information on any additional steps that are required
to prepare the detector for operation and sample analysis.
Before Operating the Detector for the First Time
Prepare the detector for the first-time operation, observing the
following:
NOTICE
Flush the system flow path thoroughly before operating the
detector for the first time:
• Before connecting the charged aerosol detector to the system flow
path
When you install devices or components to the system, always flush
them to waste before connecting them in the system flow path. To
flush the Vanquish modules, follow the instructions in the
Vanquish
System Operating Manual .
• When the charged aerosol detector is connected in the system flow
path
Flush the detector only when the detector gas flow is turned on.
Deliver pump flow to the detector for flushing (see below).
•
Before operating the detector, verify the nebulizer gas pressure
setting. Set the nebulizer gas pressure as specified on the nebulizer
certificate. Follow the instructions in
section 6.5.2, page 98 .
• To deliver pump flow to the charged aerosol detector, follow these
steps:
a) Turn on the detector gas flow. See section 6.5.3, page 99 . The
pump flow must be turned off. Wait at least 5 minutes before
you continue.
b) In Chromeleon, set the pump flow rate limit to the maximum
flow rate specified for the charged aerosol detector.
c) Turn on the pump flow to the detector. Have the pump deliver
flow to the detector.
•
Verify that any air bubbles are completely flushed out of the system
flow path.