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Valves
Sprint LC uses up to sixteen valves to control test actions. The tester can
provide up to three coupling valves that can be used to control external
test fixtures for clamping and sealing products during the test cycle.
Valve List
Number Name Function
1 Flow-A When closed, isolates the flow sensor during a
pressure decay or burst test. When open, allows air
to enter the flow sensor
2 Dump Normally closed in all tests. When open, vents the
product and the internal test circuit to atmospheric
pressure.
3 PD When open, supplies air for pressure decay test.
When closed, traps air in the test circuit so the
pressure sensor can measure a potential pressure
drop.
4 Burst-A When closed, prevents air flow through the needle
valve. When open, allows air to slowly ramp up
during a burst test.
5 Flow-B Same function as Flow-A, but downstream to the
flow sensor
6 Burst-B Same function as Burst-A, but downstream to the
flow control
7 Couple-B (Optional) When open, supplies line pressure to
control external test fixtures.
8 Couple-A Supplies line pressure to the coupling output to
control external test fixtures. Coupling valves turn on
at the start of the test and turn off when the test is
finished.
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