Operating theSRI Mudlogger GC configuration
TheSpeciation andTotalGas FID
detectors aremounted on the right
side of the column oven.
The twoFID detectors are con-
nected to two identical amplifiers.
The speciationFID amplifier
( channel 1 ) is normally operated
on low ormedium gain.
TheTotalGas FID ( CHANNEL2 )
is normally operated onmedium
gain, but may be operated on low
or high also depending onwhether
the totalgas is unusually high or
low.
The valve oven is located on the
left sideof the columnoven. An
electrically operatedValco 10port
GasSamplingValve ismounted in
the valve ovenwhich is typically
heated to 60C. The valve is used
to inject the gas sample for speci-
ation and also to backflush the col-
umn after the pentanes have
eluted.
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