Thermo Scientific FOCUS GC, Instruction Manual, Page: 77 / 356

Chapter 3
Detector Gas Regulation Gas Control
Instruction Manual 77
Verify that the corresponding gases flows are correct. If not adjust the value
turning the relevant regulation screw as shown in Figure 3-2.
Figure 3-2. TCD Detector Gases Flow Regulation
The flow is measured at the exit of the detector. Enter the TCD detector control
menu to turn the flow on/off.
Gas Flow
Helium (make-up gas) 27 mL/min
Helium (reference gas) 30 mL/min
1 turn clockwise of the regulation screw increases the flow of about 2.5 mL/min
1 turn counterclockwise of the regulation screw decreases the flow of about 2.5 mL/min
Ref. Make-up
OPEN
TCD Detector