PerkinElmer CLARUS 590 GC, User Manual

Page: 125 / 284

FID Overview . 125
5. After purging the FID with hydrogen for a minimum of 60 seconds observe the signal icon directly
below the Heater Off button .
NOTE: The signal level in mV before the flame ignites.
6. Pressing the Ignite button .
7. Quickly turn the air on by turning the outer knob of the air control valve
fully
counterclockwise.
8. When you hear a “pop” sound, observe the
Signal
level in
mV
(as 0.52 mV) as it increases
on the screen and remains greater than the previously noted amount.
You can also confirm that the flame is lit by holding a shiny object (such as a mirror or small
wrench) over the FID outlet. Condensation will appear on the object if ignition has occurred.
WARNING
AVERTISSEMENT
The FID outlet is hot! To prevent injury, never place
your hand over the FID outlet.
La sortie FID est chaude! Pour éviter toute
blessure, ne placez jamais votre main sur la prise
FID.
If the Flame Goes Out During a Run
If the flame goes out during a run, the run continues until completion however the data collected is invalid.
When Clarus GC prepares for the next run it, checks for a flame by running the Flameout test. If the Clarus
GC detects that the flame is out, a screen will appear that will indicate that the flame is out.
You must then manually ignite the flame.
NOTE: To prevent condensation from forming on the FID, always turn off the flame (both hydrogen and air gases)
before cooling the detector or turning off the Clarus GC.