13 Detector
13.3 Thermal conductivity detector (TCD)
161
GC-2010 Plus
13.3.2 Setting the detector
13.3.2.1 Screen description
Press the [DET] key to display the Detector main screen shown in Fig. 13.3.2. Here, set
the detector temperature, the detector gas flow rate, etc.
When the detector is configured in the analytical line, the signal output settings appear
in the lower portion of the screen.
13.3.2.2 Parameter list
DETECTOR CONTROLLER
Selection: On/Off, Default: On
When a detector is set to “On”, its current and voltage are controlled.
When a detector is configured in an analytical line and set to “On”, the detector is con-
trolled and its signal monitored. However, even if a detector is set to “Off”, the gas flow
and the detector temperature are controlled, when the detector is configured in an ana-
lytical line.
TEMP
Range: 0.0−400.0 °C, Default: 25.0 °C
Set the detector temperature. The TCD sensitivity is proportional to the difference in
temperature between the detector and the filament. Accordingly, the sensitivity
increases as the detector temperature decreases. However, the detector is normally set
approximately 10 °C higher than the final column oven temperature: this prevents con-
tamination in the TCD cell.
To set the maximum temperature limit, refer to “16.6.4 Setting the maximum
temperature limits”.
Fig. 13.3.2 [DET] key main screen
For output of the detector
signal, refer to “13.5 Setting
the Output Signals”.
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