General information
1-30
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
1.11.3 Ventilator Status
The VENTILATOR STATUS section of the keyboard shows the operating condition of the
ventilator, and is continuously updated during operation. Table 1-12 summarizes the
functions of the keys and indicators in the VENTILATOR STATUS section of the keyboard.
Volume bar
graph
(760 only)
Shows real-time exhaled volume in milliliters
(ml). Volumes are compliance-compensated
and corrected to BTPS.
The active scale is determined by the HIGH
TIDAL VOLUME alarm setting. LEDs show the
current HIGH TIDAL VOLUME and LOW TIDAL
VOLUME alarm settings. You can use the
MENU key to enable or disable the volume
bar graph.
During exhalation, LEDs show the maximum
exhaled volume of the last breath.
If HIGH TIDAL VOLUME setting
< 500 ml:
0 to 500 ml
Resolution: 5 ml
If HIGH TIDAL VOLUME setting
> 500 ml:
0 to 2000 ml
Resolution: 20 ml
MAND
Lights at the start of each breath to indicate a
ventilator- or operator-initiated mandatory
breath is being delivered.
Not applicable
ASSIST
Lights at the start of each breath to indicate a
patient-initiated mandatory breath is being
delivered.
Not applicable
SPONT
Lights at the start of each breath to indicate a
patient-initiated spontaneous breath is being
delivered.
Not applicable
Table 1-12: 700 Series Ventilator keyboards: VENTILATOR STATUS
Key/indicator
Color
(Priority)
Function
ALARM
Red (high)
Flashes when a high-priority alarm is active. A repeating
sequence of three, then two beeps sounds. Lights steadily
when a high-priority alarm has been autoreset.
CAUTION
Yellow
(medium)
Flashes when a medium-priority alarm is active. A repeating
sequence of three beeps sounds. Lights steadily when a
medium-priority alarm has been autoreset.
NORMAL
Green
Lights when no alarm condition is present.
VENT INOP
Red (high)
Lights to indicate that the ventilator is inoperative, and the
ventilator safety valve is open. A qualified service technician
must run and pass the extended self-test (EST) before normal
ventilation can resume.
If the condition that caused the safety valve to open no longer
exists, and the VENT INOP indicator is off, press the alarm reset
key to resume ventilation.
Table 1-11: 700 Series
Ventilator keyboards: PATIENT DATA (continued)
Key/indicator
Function
Range
Summary of Contents for Puritan Bennett 700 Series
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