Commands and Tips for Third-Party Devices
Agilent 6890/6850 GCs: Inlet (Purged Packed (EPC), Cool On-Column (EPC))

In addition to the general commands described in  Inlet (General), 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

Flow

-

-

-

Properties related to the gas flow.

 Flow.Nominal

0.0 ml/min

1000.0 ml/min
in 0.1 increments

² (Demo mode:

80 ml/min)

Specifies the target gas flow.

 Flow.Value

0.0 ml/min

1000.0 ml/min

-

Measured gas flow (read-only).

FlowEquilibration
Time

0.00 min

999.99 min
in 0.01 increments

0.00 min

After reaching the target gas flow, the GC waits the time specified under FlowEquilibrationTime before signaling Ready.

GasType

Nitrogen, Hydrogen, Helium, Argon Methane, Unknown

² (Demo mode:

Nitrogen)

Gas type.

Mode

(only Cool On-Column)

RampedTemperature

TrackOven

²

Operating mode³

RampedTemperature for temperature ramps or constant temperature

TrackOven, i.e., the inlet temperature is automatically set to the oven temperature.

Pressure

-

 

-

Properties related to the gas pressure

 Pressure.
Nominal

0.00 bar

10.00 bar
in 0.01 increments

² (Demo mode:

1.30 bar)

Specifies the target gas pressure.

 Pressure.Value

0.00 bar

10.00 bar

-

Measured gas pressure (read-only).

Pressure
EquilibrationTime

0.00 min

999.99 min
in 0.01 increments

² (Demo mode:
0.00 min)

After reaching the target gas pressure, the GC waits the time specified under PressureEquilibration
Time before signaling Ready.

 

 Notes:

² When connecting, Chromeleon reads the value from the instrument and accepts it as default.

³ When a temperature has been defined, the mode is automatically set to RampedTemperature. It is not possible to set the temperature in TrackOven mode (the inlet temperature is automatically set to the oven temperature).

Also, refer to:

 Inlet (Split/Splitless (EPC), Gerstel PTV, PTV, CIS3)

 Agilent 6890/6850 GCs: PGM File - Entering Pressure or Flow?

 

The Administrator Help section provides installation instructions for the 6890 and 6850 GCs; refer to Hardware Installation:

 Agilent 6890 GC: Installation

 Agilent 6850 GC: Installation