Operator’s Manual LTV
®
Series ventilator Page 11-9
p/n 10664, Rev. Y
Leak Test (cont)
5) To perform the Leak Test, the ventilator does the following:
a) Closes the exhalation valve and sets the flow valve to a near-closed state. The display briefly
shows HOMING VALVE.
b) Elevates the turbine motor speed. The display shows SET TURBINE. If the display shows
LEAK --- FAIL, see Chapter 15 - Troubleshooting for more information.
c) Elevates the circuit pressure. The display shows PRES xx.x cmH
2
O where xx.x is the real-
time airway pressure.
d) Sets the flow valve to a near closed position. The display shows FLOW xx.x Lpm where xx.x
is the flow through the flow valve.
e) After several seconds, the display shows LEAK xx.x PASS or LEAK xx.x FAIL indicating the
Leak Test results. The Leak Test will fail if the flow through the flow valve is greater than 1
Lpm.
6) To exit the Leak Test, push the Select button again and the next menu item is displayed.
If the ventilator fails the Leak Test, see Chapter 15 - Troubleshooting for more information.
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