VICI 230 Dynacalibrator - Manual (Page 27)


this number to indicate the carrier flow (and the orifice used). Refer to page 4 for
information about the available flow capacity ranges.
Many of the plumbing components of the Dynacalibrator are rated for the different
flow capacities of items such as for the main pump, the dilution flowmeter, etc.
The following discussion disregards these differences and describes the basic
flow through the unit in relative terms.
Configuration 0
The plumbing configuration designated “0” (Figure 5) consists of a single input
port, an integral micron filter/pressure regulator assembly, and a tee. Dry gas (air,
nitrogen, etc.) at the appropriate pressure is supplied by the user to the supply
inlet on the back panel. Particulates larger than 30 microns are removed by filter
F1. Line regulator PR1 is set at the factory to deliver 10 psig gas to the working
parts of the instruments. The output of PR1 is split by the tee into the carrier and
dilution stream paths.
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Configuration 
Figure 6 shows plumbing configuration 1. Each line – carrier and dilution – contains
its own input port and an integral micron filter/pressure regulator assembly.
User-supplied gas is filtered and regulated down to 10 psig by the factory-set
line regulator for the carrier and dilution stream paths.
Advanced Theory of Operation
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Figure 5: Diagram of configuration 0
Figure 6: Diagram of configuration 1