Self-tests
3-6
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Puritan Bennett™ 700 Series Ventilator System Service Manual
3.3 Short self-test (SST)
The short self-test (SST) is a subset of the extended self-test (EST), and is primarily for use by
the operator. Consult the
Operator’s Manual
for information on SST.
NOTE:
• Covidien recommends SST be run every 15 days, between patients, and when the
ventilator breathing circuit is changed. Covidien recognizes the protocol for running
SST varies widely among healthcare institutions. It is not possible for Covidien to
specify or require specific practices that will meet all needs, or to be responsible for
the effectiveness of those practices.
• If SST fails, the 700 Series Ventilator System lets you keep rerunning SST. To more
thoroughly troubleshoot a ventilator that has failed SST, cycle the unit’s power while
simultaneously holding down the MENU key. The ventilator declares a ventilator
inoperative condition, enters a safety valve open state, and allows access to service
menu functions. Use these functions to test and troubleshoot the ventilator, as
described in Chapter 4.
3.4 Extended self-test (EST)
This subsection describes the extended self-test (EST), including its hardware requirements,
operation, test routines, and error handling. You can run EST from the main or service menus.
NOTE:
Covidien recommends you always run the full EST before placing the ventilator into
operation following service. For preliminary troubleshooting purposes, however, you
may want to run EST tests individually by using the
EST tests
function under
Diagnostics/Service, Run tests
EST tests
function does not
write error information into NVRAM nor declare a VENT INOP condition when tests are
failed.
3.4.1 When to run
Run EST before placing the ventilator into operation following service and as part of the
ventilator’s routine performance verification.
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