Teledyne GC-Pro/TCD - Gas Chromatograph - Manual (Page 77)

GC-Pro TCD Operation
Teledyne Analytical Instruments 63
The function is split into two screens addressing to Groups 0-4 and
5-9. The screen below shows the display addressing Groups 0-4 (Group
5-9 screen is similar).
In this screen a dark green color on the LED in the “Include” column
adjacent to a group indicates that Alt Span is currently disabled for that
group. A bright green LED indicates that Alt Span is enabled for the
corresponding group. The Alt Factor value can be entered into the box in
two phases i.e., an integer part using the UP arrow on the left and a
fractional part using the UP arrow on the right.