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Self-tests
3-8
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
NOTE:
• During all testing, the pressure LED bar will display the expiratory pressure level. The
current pressure is also displayed in the PRESSURE window in the PATIENT DATA
section of the keyboard. These displays do not affect the testing but supply
additional information when troubleshooting. The exception to this rule is during
the piston leak test, when the pressure LED displays the cylinder pressure.
• When EST requires a user response, the ventilator will wait indefinitely.
1.
Set up ventilator as for normal operation, complete with humidifier, if applicable, and
leak-tight ventilator breathing circuit. You can run EST from the main menu or the
service menu.
2.
To run EST from the Main menu:
a.
Turn on the ventilator. If ventilation has already begun since the ventilator was
turned on, turn off the ventilator and turn it back on without starting ventilation.
b.
Press MENU, turn the knob to select
Self test
, then press ACCEPT. Turn the knob to
select
Extended self test
.
To run EST from the service menu:
a.
Press MENU while simultaneously powering on ventilator. Do not release MENU
until prompted by message window.
b.
After POST is completed, press MENU again, turn knob to select
A. Service menu
,
then press ACCEPT.
3.
Turn knob to select
EST
.
4.
Respond to the following prompts:
Table 3-4: EST prompts
Message window display
Description
EST
Press ACCEPT to proceed.
Vent warming
[
Time countdown
]
CLEAR to bypass
This is displayed (followed by a countdown) if you just turned on the ventilator.
When 10 minutes have passed since power on, the message is cleared and the
ventilator displays the next prompt.
NOTE:
It is important the ventilator be on for ten minutes before EST is run so
component temperatures can stabilize.
If the ventilator was recently running and is already warmed up, you can
press CLEAR to override the
Vent warming
message and begin EST. Covidien
cannot guarantee the accuracy of test results in this case, however.
Is pt disconnected?
Confirm patient is disconnected by pressing ACCEPT; or press CLEAR to return to
service menu.
Block wye
Install no. 2 stopper and then press ACCEPT.
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