Shimadzu GC-2010 User Manual

4 Key Operations
4.1 Key operation of FPD
36 FPD-2010
Flame
Setting range: On/Off, Default: Off (When auto ignite is set to [On], the flame will be On.)
When the flame is ignited, it is On. When it is not ignited, it is Off.)
Filter time constant
Setting range: 4 ms/5 ms/10 ms/20 ms/50 ms/100 ms/200 ms/500 ms/1s/2s
Default: 200 ms
Effect of the signal processing against the detector signal. The larger the value is, the smaller
the noise is produced. However, the peak height will be smaller as well.
Set the filter signal time constant to the optimum value corresponding to the peak width at half
height. (Refer to
“13.4 Time Constant of Filter Signal” in the main unit instruction manual.)
Signal output port
Setting range: Off/Ch1/Ch2/Ch3/Ch4, Default: (Channels will be allotted automatically.)
Channels of the signals output from the gas chromatograph are set. The output signals have
digital signals and analog signals and they are provided in total four channels. However, with
analog output, only channel 1 and channel 2 are provided as standard.
Background sig. save
Setting range: Off/Buff1/Buff2/, Default: Off
The baseline fluctuation is stored as background in the waveform storing memory of gas
chromatograph.
Background sig. comp
Setting range: Off/Buff1/Buff2/, Default: Off
The baseline stored as background can be deducted from the current baseline. This function
enables stable baseline output even when the baseline is largely fluctuating.
Detector sig. subtraction
Setting range: Off/DET#1/DET#2/DET#3/DET#4, Default: Off
The output signal output form the other detectors can be subtracted from the signals output
from the detector. This is mostly used for dual column flowline to eliminate the background by
subtracting the analysis data without sample injection from the analysis data with sample
injection. For the details of detector signal output, background storage, background
correction, and detector signal
subtraction, refer to “13.5 Setting the Output Signals” in the
main unit instruction manual.
Signal range
Setting range: ×1, ×10
-1
, ×10
-2
, ×10
-3
, and ×10
-4
Default: ×10
-1
When the analog signal type is Linear, the analog signal is multiplied by the coefficient of 10
-X
.
When the peak is saturated with data processing unit, change the settings as follows:
×1 to
×10
-1
and ×10
-2
to ×10
-3
.
The digital signals are always output by ×1.
Signal attenuation
Setting range: ×1, ×2
-1
, ×2
-2
, ×2
-3
, and ×2
-4
Default: ×2
-1
When the analog signal type is Wide, the analog signal is multiplied by the coefficient of 2
-X
.
When the peak is saturated with data processing unit, change the settings as follows:
×1 to
×2
-1
and ×2
-2
to ×2
-3
.
The digital signals are always output by x1.

Shimadzu GC-2010 Specifications

General

Brand	Shimadzu
Model	GC-2010
Category	Security Sensors
Language	English