Entering Sample Preparation Commands (Integral Systems)

Integral Process Analytical System Control
Entering Sample Preparation Commands

Commands used for preparing the sample or standard for analysis on an Integral system are typically grouped in the program and executed before the timed commands (commands that are executed at a specific time in the program). When the sample preparation commands are grouped (as described below) the SS and SP can overlap sample preparation functions (see Overlapping Sample Preparation Functions).

Separate groups of sample preparation commands are required for the SS Stream Selector and the SP Sample Preparer. If the system includes both an SS and an SP, the group of SS sample preparation commands must always be listed before the group of SP commands.

When you create or edit a program with the Program Wizard or Program (PGM) Editor, Chromeleon automatically creates the necessary sample preparation groups, adds the required Begin, End, and Wait commands (see the examples below), and places the groups in the correct order.

You can also add sample preparation commands to a program at specified program execution times (see Entering Timed Sample Preparation Commands).

SS Sample Preparation Commands Group

The SS sample preparation commands group contains the following commands:

	BeginSSSamplePrep	;defines the start of the group
	StreamPosition = x	;selects the stream to sample from
	Wait SSStreamInUse	;pauses the program while sampling occurs
	[list of other sample preparation commands]	;optional commands that must be entered manually
	EndSSSamplePrep	;defines the end of the group
	Wait SSSamplePrepComplete	;pauses the program until the grouped commands are completed

SS Notes:

When you create or edit a program with the Program Wizard or Program Editor, Chromeleon adds the StreamPosition command to the SS group.
The Program Wizard or Program Editor can only add commands for controlling the SS stream selection valves to the program. If any other components are installed in the SS (for example, solenoid valves), enter commands for controlling those components manually (see Manually Editing a PGM File in the Commands View).

SP Sample Preparation Commands Group

The SP sample preparation commands group contains the following commands:

	BeginSPSamplePrep	;defines the start of the group
	[list of sample preparation commands]	;entered in the Program Wizard or Program Editor
	EndSPSamplePrep	;defines the end of the group
	Wait SPSamplePrepComplete	;pauses the program until the sample preparation commands are completed

SP Notes:

The list of SP sample preparation commands is defined on the SP Sample Preparation Options page of the Program Wizard or Program Editor.
When you create or edit a program with the Program Wizard or Program Editor, Chromeleon adds the list of sample preparation commands to the SP group.

Also, refer to:

Integral Process Analytical System Control