Legacy® PLUS - Smiths Medical

Reference
Section 5: Reference
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6. Slowly increase the backpressure, noting when the high pressure
alarm is activated.
NOTE: The pressure may be increased rapidly to 8 psi [0.55 bar],
after which the pressure should be increased at 3 psi/min [0.21 bar/
min] or less until the alarm sounds.
7. The high pressure alarm should sound between 12 and 40 psi
(26 ± 14 psi) [between 0.82 and 2.76 bar (1.79 ± 0.97 bar)].
CAUTION: At the completion of the test, the pressure must be
reduced to zero before detaching the cassette from the pump;
otherwise, the cassette may rupture. Safety glasses should be
worn while conducting or observing this test.