![background image](http://html1.mh-extra.com/html/covidien/puritan-bennett-700-series/puritan-bennett-700-series_service-manual_2673918253.webp)
Alarm messages
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
7-7
HI EX TIDAL VOLUME
(no diagnostic code
logged)
Medium-priority alarm.
Exhaled volume for three of four
consecutive breaths was above HIGH TIDAL
VOLUME setting.
Autoreset when three of four consecutive
breaths are within alarm setting.
1. Check patient.
2. Consider appropriate HIGH TIDAL
VOLUME, TIDAL VOLUME, and
SUPPORT PRESSURE settings.
3. If flow sensor was recently replaced,
make sure calibration constants were
correctly entered.
4. Replace exhalation flow sensor.
5. Replace pressure solenoid PCB.
HI RESP RATE
(no diagnostic code
logged)
Medium-priority alarm.
Monitored respiratory rate higher than
HIGH RATE setting.
Autoreset when monitored respiratory rate
less than or equal to alarm setting.
1. Check patient.
2. Check for ventilator breathing circuit
leak that could cause autocycling.
3. Consider appropriate HI RATE,
RESPIRATORY RATE, and TRIGGER
SENSITIVITY settings.
4. Consider adequacy of ventilatory
support and patient comfort.
5. Replace controller PCB.
HI SYS TEMP ALERT
(diagnostic code 6010)
High-priority alarm. Technical alert.
Temperature inside ventilator enclosure
too high.
Autoreset when temperature within range.
1. Make sure room temperature is not too
high.
2. Make sure vents in unit are not
blocked.
3. Make sure main fan is operating
properly. Clean or replace fan filter, as
necessary.
4. Replace pressure solenoid PCB.
HIGH PRESSURE
(no diagnostic code
logged)
High-priority alarm.
Two consecutive breaths were truncated
because ventilator breathing circuit
pressure reached HIGH PRESSURE setting.
(Inspiration phase ends and exhalation
valve opens to prevent excessive pressure.)
Autoreset when circuit pressure is less than
alarm setting for 5 breaths. Cannot be
silenced if alarm condition persists.
1. Check patient.
2. Check for water in inspiratory limb or
for kinked tubing.
3. Consider appropriate HIGH PRESSURE
and ventilator settings.
4. Replace pressure solenoid PCB.
5. Replace controller PCB.
KEYBOARD FAILED
(diagnostic code 6008)
High-priority alarm. Technical alert.
A key was held down longer than
expected.
Alarm does not autoreset.
1. Verify that keyboard cable is securely
connected to UI display PCB.
2. Replace keyboard.
3. Replace controller PCB.
4. Replace UI display PCB.
Table 7-2: Alarm messages (continued)
When you see this
message:
It means...
Do this...
Summary of Contents for Puritan Bennett 700 Series
Page 1: ...Service Manual Puritan Bennett 700 Series Ventilator Systems TM...
Page 439: ......