Commands and Tips for Third-Party Devices
 Perkin Elmer TurboMatrix Headspace Sampler: Pressure

Ahe following commands and properties are available (please note that the display Filter level determines which commands and properties are displayed):

 

Property

Range/Values

Description

ColumnPressure

 

Properties related to the column pressure.

Column Pressure.
NominalČ

0.00 - 4.00 bar,
0 - 400 kPa or
0 - 60.0 psig

Sets the target pressure in the column.

Column Pressure.
ValueČ

0.00 - 4.00 bar
0 - 400 kPa or
0 - 60.0 psig

Indicates the current column pressure (read-only).

HighPressInject

On or Off

Enables or disables high-pressure injection mode (on the device: Hi Psi Inject).

  Note:

This property is available only if you have selected the Programmable Pneumatic (PPC) check box on the Options tab page in the Server Configuration program.

InjectPressureČ

0.00 - 4.00 bar
0 - 400 kPa or
0 - 60.0 psig

Sets the pressure for high-pressure injections (HighPressInject = On) for the time between the start of the pressure period and sample venting (withdrawing the needle).

  Notes:

This property is available only if you have selected the Programmable Pneumatic (PPC) check box on the Options tab page in the Server Configuration program.

When HighPressInject is set to Off, the device does not use this value.

 

  Notes:

The sampler accepts Chromeleon pressure commands only in psi. That is why Chromeleon must convert bar or kPa to psig before sending these commands to the sampler. This conversion may result in minor rounding differences, e.g., 120 kPa in Chromeleon is transferred to the sampler as 119.9 kPa.

The range of 0 - 60 psi (or 0 - 413.7 kPa) corresponds to the range that can be set on the device.

 

For more commands and properties that Chromeleon supports for the TurboMatrix Headspace sampler, refer to:

 State

 Options

 Temperatures

 Time Programs

 Oven