INFICON Composer Gas Concentration Controller - Manual (Page 168)

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Composer Operating Manual
8.3.5 Setup Process Parameters
These parameters are necessary to set the sensor’s temperature, provide gas
properties data, set up control loops and set the desired concentration. These
are located in the Setup >> Process Parameters menu. The associated dialog
shown in
Figure 8-5 . Any combination of parameters can be saved through
Settings-File >> Save As menu in this dialog. Likewise, any previously saved
setup file can be opened and downloaded.
Figure 8-5 Setup Process Parameters Dialog
NOTE: Before attempting to set loop parameter values review section 3.2.3,
How to Determine Process Parameters, on page 3-28 , and section
3.2.1, Control Loop Fundamentals — Concentration Control, on page
3-21
.
The parameters are downloaded to composer by pressing the Send button on
the dialog. Similarly, the Get button is used for recalling parameters from
Composer. The Close button closes the Composer Setup window. The Status
field shows progress of downloading or uploading of parameters when Send or
Get button is pressed. Other data fields are elaborated as follows. During the
time the instrument is in the state of control, only process gain, dead time, time
constant, loop type, concentration target, and relay limit can be downloaded
into Composer. See
Table 4-1 on page 4-15 for a list of parameters, their format
and allowed ranges.