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Advanced Theory of Operation
28
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 differ-
ent 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 5 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.
FILTER
SUPPLY
INLET
Figure 5: Diagram of Configuration 0
Configuration 1
Figure 6 shows plumbing configuration "1" . Each line – carrier and dilution –
contains its own input port and an integral 5-micron filter/pressure regulator
assembly. User-supplied gas is filtered and regulated down to 10 psig by the
fac tory-set line regulator for the carrier and dilution stream paths.
FILTER
DILUTION
INLET
FILTER
CARRIER
INLET
Figure 6: Diagram of Configuration 1
F1
LINE REGULATOR
PR1
F1
LINE REGULATOR
PR1
F2
LINE REGULATOR
PR2
DILUTION STREAM
TEE
CARRIER STREAM
DILUTION
STREAM
CARRIER
STREAM
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