Teledyne GC-Pro/TCD - Gas Chromatograph - Manual (Page 99)

GC-Pro TCD Operation
Teledyne Analytical Instruments 85
Values for the X and Y axis are entered by touching the input box. A
numerical keypad appears that allows for numeric entry. Press ENTER on
the keypad to enter the value into the appropriate box and dismiss the
keypad. Repeat for each input box requiring an entry or change. Upon final
entry, press Chromatogram button to return to the Chromatogram screen.
The new X-axis and Y-axis values will be displayed on the screen. The
limit for X-High is 1020 i.e., 1020 seconds. So the maximum cycle time
which is the sum of the Forward and Backward phase duration should not
exceed 1020 seconds (17 min) for the chromatogram.
4.5.13.4 VS C OUNT
The VS (Volt-seconds) count is a measure of the conditioned signal
coming from the detector. It corresponds to the strength of the output
signal from the detector. The VS measure is a relative value and has no
absolute relationship to concentration between groups.
4.5.13.5 C OLD B OOT
The “Cold Boot” button on the HOME screen provides the user with
the option of resuming the system with user configured settings or
restoring the analyzer back to the default factory settings for all
parameters.
The Cold Boot function is a password protected function. The
default password is ‘11111’. If the password has been changed (see
Section 4.5.12.5) then the new password must be entered to gain entry
into the function that allows a change from the current setting.
Pressing “Cold Boot” from the HOME screen brings up the
following screen: