Teledyne GC-Pro/TCD - Gas Chromatograph - Manual (Page 53)

GC-Pro TCD Operation
Teledyne Analytical Instruments 39
 Calibrate the instrument.
 Choose auto ranging or select a fixed range of analysis.
 Set alarm setpoints and modes of alarm operation.
3. Special functions setup.
 Calibrate analog output, select analog output source, assign
names for groups and peaks, etc..
Procedures for accessing and/or changing parameters as well as
analyzer operation are detailed in the sections to follow. All functions
can be accessed from the MENU screen which is accessible via the
center button on the HOME screen.
The default screen is the HOME screen (see Section 4.5.2). This is
the analysis display and shows details regarding the current sample
being analyzed. However, the user can go directly to any function
supported by the analyzer by pressing the MENU button. The only
exception to this is when the instrument is powered up. It will go
through a warm-up period, followed by a diagnostic self-test routine as
explained in Section 4.3.
4.5.1 Default Parameters
The versatility of this analyzer usually results in significant changes
being made to parameters over the course of time to better suit a
particular application. Occasionally processes change requiring
alteration to alarms, filter settings etc. At some time, it may be
beneficial to reset the analyzer to the default conditions as it was when
shipped from the factory. Below is a listing of the default parameters
used in configuring the typical GC-Pro TCD instrument. Your specific
application may require different settings. Refer to the Addendum and
Testing Results section of Appendix C for any specific changes or
recommendations that apply to your application.
Range/Application: Refer to the Addendum and Testing
Results section of Appendix C
Range: Manual
Alarms: Defeated, 20ppb, 50ppb, HI, NON-
FAILSAFE, NON-LATCHING