User guide

Detectors 10

Advanced User Guide 303

Set the detector temperature. The temperature must be

greater than 150 °C for the flame to light.

4 Set the hydrogen flow rate, if desired, and press [Off/No].

5 Change the air flow rate, if desired, and press [Off/No].

6 If using a packed column, set the FID makeup gas to 0.0/Off.

7 If using a defined capillary column, set the makeup gas flow

or combined column plus makeup gas flow.

8 Scroll to Flame and press [On/Yes]. This turns on the air and

hydrogen and initiates the ignition sequence. The signal

typically increases to 5 to 20 pA after ignition.

Verify that the flame is lit by holding a cold, shiny surface,

such as a mirror or chrome- plated wrench, over the collector

exit. Steady condensation indicates that the flame is lit.