Uson SPRINT LC, Owner'S Manual

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Page 26
What is a Standard Sprint LC?
(continued)
It is helpful to understand the features and options purchased and made
part of the tester. Refer to the quote provided, the order acknowledgement
or packing list for a list of these options.
Single Channel, Multi-Parameter Sprint
The base model Sprint LC-PO has a single test port and can only do
pressure decay testing. The LC-PFB has multiple test types available, but
all tests are still done through one test port. The tests can be linked
together in a sequence or performed one at a time. Many combinations of
test types (or modes) are available.
Multiple Channels
Sprint LC is also sold in models having up to four channels (test ports).
Multiple channel machines are available in either sequential or concurrent
models.
Sequential
Sequential models have only one pressure sensor and optionally a flow
sensor. The machine can be setup to sequences through each of the
channels one at a time. It can also be setup to do any one of the available
test type on any of the channels. For example, an LC-3PFB has three test
ports. It can do a pressure decay test on port one, followed by a flow test
on port two, and then a burst test on port three. Or it could do all three, one
after the other, all on port two.
Concurrent
A concurrent Sprint LC has one pressure sensor for each channel (flow
and burst are not available) and can activate and test all channels at the
same time. Or it can activate any combination of test ports at the same
time. A concurrent model can also be setup to function in a sequential
fashion.