Page 7-6 LTV
®
Series ventilator Operator’s Manual
p/n 10664, Rev. Y
NPPV
The NPPV
34
indicator LED is lit when NPPV mode is selected. NPPV mode is selected under the
Extended Features. For more information on NPPV mode, see Chapter 4 - Ventilation Modes, NPPV
and Chapter 10 - Extended Features.
Patient Effort
This LED is lit briefly each time a patient trigger is detected. See Chapter 6 - Controls, Sensitivity for
more information on patient triggers.
Vent Inop
The Vent Inop LED is lit any time the ventilator is in the Inop state. This occurs when:
• The ventilator is put into Standby using the On / Standby button.
• The ventilator power sources, both external and internal, are insufficient to operate the ventilator.
• A Vent Inop alarm sounds.
An audible alarm sounds continuously when the ventilator enters the Vent Inop state, and may be
silenced by pushing the Silence / Reset button.
While in the Vent Inop state, the ventilator is set to a safe state, allowing the patient to breathe
spontaneously from room air.
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Non-Invasive Positive Pressure Ventilation
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