Thermo Scientific Vanquish VF-D20, Руководство по эксплуатации, Страница: 100 / 182

6 • Operation
Page 100 Vanquish Charged Aerosol Detectors Operating Manual
6.6 Important Operating Parameters
The parameters described in this section should be considered for
routine operation of the detector. You can usually access these
parameters from the Chromeleon user interface. For more information,
refer to
Chromeleon Help and documents
.
Parameters Description
Signal channels The signal channels are available for the detector in the
Instrument Configuration Manager (Chromeleon 7) or
Server Configuration program (Chromeleon 6.8).
CAD_1 The CAD_1 signal channel is available for data acquisition.
As a standard, the detector measures the current in pA .
Background current Records and monitors the background current of the
detector during data acquisition without autozero or filter
constant applied. As a standard, the detector measures
the current in
pA .
For further information, see section 6.7.4 Signal Channels,
page 106 .
Gas regulator
pressure (signal
channel)
Records and monitors the nebulizer pressure during data
acquisition.
The default unit setting for the gas pressure corresponds
to the
Pressure Unit that is defined on the detector
configuration pages in the Chromeleon software.
For further information, see
section 6.7.4 Signal Channels,
page 106 .
Evaporation tube
temperature
Records and monitors the actual temperature of the
evaporation tube during data acquisition. The
temperature is recorded in
°C as a default.
For further information, see section 6.7.4 Signal Channels,
page 106 .
Gas state Turns the detector gas flow On or Off .
Observe the notes in section 6.5.3 Turning On the
Detector Gas Flow, page 99 .
Autozero Performs an automatic null balancing. The current
detector signal is interpreted as 0 at the current range in
use.