98 Model 5380 PFPD Operator’s Manual
Rev. 3.1
Record Raw chemiluminescence data between specified start
and stop times during the GC’s analytical run.
Remote Start Allows synchronization of PFPD time events with the
start of the GC’s analytical run.
Selectivity If the signal response is linear relative to the analyte
concentration, detectivity is signal output per unit
mass flow rate of the analyte. The selectivity of the
PFPD determines the ratio of the response from one
detected element relative to another.
Signal Output The gated integration output sent from the printed
circuit board in the Detector Controller to the data
handling device.
Temperature Sensor Embedded in the detector base and allows control of
the PFPD temperature.
Tick-Tock Occurs when the propagating flame alternately termi-
nates at the top and bottom of the combustor because
the propagating flame reaches the top of the combus-
tor before the combustor gas mixture fills the combus-
tor.
Timed Event An event that is timed to occur during the GC analysis
run time.
Trigger Level Corresponds to a specific current being generated by
the PMT and is the value at which a pulsed event is
first detected and from which timing for the gate start
and stop begins.
Viton O-ring Prevents parts in the PMT housing from moving, and
prevents light leakage from the optical elements of the
PFPD.
Wall Gas (WALL) Air-rich hydrogen and air mixture delivered to the
ignitor.
WinPulse Software developed to set up and optimize the operat-
ing parameters of the PFPD.
Zero The zero value set for the output signal. This is often
set at some value below the lowest noise signal when
the PFPD is in the tick-tock mode.
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