Page 15-2 LTV
®
Series ventilator Operator’s Manual
p/n 10664, Rev. Y
Displays and Buttons
Some of the symptoms listed in this section are part of the normal operation of the ventilator and do
not indicate any problem with the ventilator. They are included here for completeness.
Symptoms Possible Causes What to Do
Pressure Control
display flashing.
Pressure Control breath
terminated by flow - PC
FLOW TERM is set to
on.
Pressure Control breaths are normally
terminated when the set inspiratory time expires.
Flow termination of Pressure Control breaths is
allowed when PC FLOW TERM is set to ON (see
page 10-11.) When a Pressure Control breath is
terminated by flow instead of time, the Pres
Control display is flashed.
Pressure Support
display flashing.
Pressure support
breath terminated by
time - set under TIME
TERM.
Pressure support breaths are normally
terminated when the flow drops below the set
percentage of the peak flow. Pressure support
breaths may also terminate on time when the
variable time limit is reached before the flow
drops to the set level. (See pages 10-9 and 10-
10 for an explanation of the FLOW TERM and
TIME TERM features.) When a pressure support
breath is terminated based on time, the Pres
Support display is flashed.
High Pres Limit
display flashing.
HIGH PRES alarm
occurred.
The High Pres Limit display is flashed and the
HIGH PRES message is displayed when a high
pressure alarm occurs. The display will continue
to flash even after the condition clears. (See
page 6-4 for an explanation of the HIGH PRES
alarm feature.)
Low Pressure display
flashing.
LOW PRES alarm
occurred.
The Low Pressure display is flashed and the
LOW PRES message is displayed when a low
pressure alarm occurs. The display will continue
to flash even after the condition clears. (See
page 6-12 for an explanation of the LOW PRES
alarm feature.)
Low Min Vol display
flashing.
LOW MIN VOL alarm
occurred.
The Low Min Vol display is flashed and the LOW
MIN VOL message is displayed when a low
minute volume alarm occurs. The display will
continue to flash even after the condition clears.
(See page 6-11 for an explanation of the LOW
MIN VOL alarm feature.)
O
2
% (O
2
Flush)
display flashing.
LOW O2 PRES or
HIGH O2 PRES alarm
occurred.
The O
2
% (O
2
Flush) display is flashed and the
LOW O2 PRES or HIGH O2 PRES message is
displayed when a low or high O
2
pressure alarm
occurs. The display will continue to flash even
after the condition clears. (See pages 9-19 and
9-12 for an explanation of the LOW O2 PRES
and HIGH O2 PRES alarm features.)
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