Commands and Tips for Third-Party Devices
Agilent 6890/6850 GCs: TCD (Thermal Conductivity Detector)
The following commands and properties are available (please note that the display Filter level determines which commands and properties are displayed):
Property |
Min. |
Max. |
Default |
Description |
Filament |
Off |
On |
1 |
Turns the filament on and off. |
MakeupGasType |
Nitrogen, Hydrogen, Helium, Argon Methane, Unknown) |
² (Demo |
Makeup gas type. In this form, the property is available only for FID detectors with EPC option, see the Detector configuration tab page. |
|
Polarity |
Positive |
Negative |
² (Demo |
Set to Negative to invert negative peaks. Set to Positive for normal peaks. |
RefFlow |
0.0 ml/min |
100.0 |
² (Demo |
Reference gas flow. In this form, the property is available only for detectors without EPC option, see the Detector configuration tab page. |
RefFlow |
- |
- |
- |
Properties related to the reference gas flow. |
Ref.Flow. |
0.0 ml/min |
100.0 |
0.0 ml/min |
Specifies the target reference gas flow. |
RefFlow.Value |
0.0 ml/min |
100.0 |
- |
Current reference gas flow (read-only). |
RefFlowCtrl |
Off |
On |
² (Demo |
Turns the pneumatics on and off. In this form, the property is available only for detectors with EPC option, see the Detector configuration tab page. |
Note:
² When connecting, Chromeleon reads the value from the instrument and accepts it as default.
The Administrator Help section provides installation instructions for the 6890 and 6850 GCs; refer to Hardware Installation: