DH Instruments PPC2+, Manual

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PPC2+™ Operation and Maintenance Manual
©2001 DH Instruments, Inc.
Page 54
Next, the numerical values of the pressure targets in the sequence are specified:
1. Number of the target in the sequence whose value is
currently being edited.
2. Entry field for the numerical value of the target
pressure.
Enter the numerical value of the target pressure or press the [VENT] direct pressure
control key to cause a VENT command to execute. The display repeats, incrementing
through the target numbers until the total number of targets specified has been defined.
The next selection defines how the sequence will
end, by venting after the last target <1yes> or at the
last target <2no>:
Selecting <1Yes> will cause a VENT command to execute after the last target of the
sequence has been completed. Selecting <2No> will cause the sequence to end at the
last target.
The next selection defines how the sequence will
proceed from one pressure target to the next:
If <1ENTER> is selected, when the sequence is executed, PPC2+ will wait at each
pressure target until [ENTER] is pressed before proceeding to the next target.
If <2Timer> is selected, when the sequence is executed, PPC2+ will start a timer when a
Ready (<*>) condition is reached at a pressure target. Each time the timer expires, the
sequence will proceed automatically to the next pressure target. If <dwell> is selected,
the dwell time in seconds (minimum 1 and maximum 99) is entered in the next screen.
After defining how the sequence will proceed from
one pressure target to the next, the control mode
is specified:
Enter the desired pressure control mode for the sequence (see Section 3.1.2.3 for a
description of the control modes).
The option of customizing the control mode
parameters for the control mode selected is
then offered:
If <1Yes> is selected, screens will be presented allowing the control hold limit and stability
limit to be adjusted (see Sections 3.2.3 and 3.2.6).
If <2No> is selected, the control parameters will be the default control parameters for the
range and control mode specified for this sequence (see Sections 3.2.3 and 3.2.6).
2
0 psi Seq01
Seq01 1yes 2no
1ENTER 2timer Seq01
1dynamic2static Seq01
1Yes 2No Seq01