Table of Contents - Covidien

Self tests (SST and EST)
Safety valve
test
PEEP system
test
Flow/O 2
sensor test
Table 4-2: SST sequence of tests (continued)
Test Function Comments
Verifies that safety valve
relieves excess circuit
pressure. Displays
expiratory pressure on
pressure bar graph.
Verifies that the PEEP
system can generate and
maintain preset PEEP levels.
Displays expiratory pressure
on pressure bar graph.
Checks the accuracy of the
exhalation flow sensor and
the oxygen sensor.
I/E filter test Checks the pressure drop
across the inspiratory and
expiratory limbs of the
entire patient system.
Checks the pressure drop
across the filters.
Failure if not passed.
Failure if not passed.
Failure if flow sensor test
does not pass.
Fault if oxygen sensor test
does not pass. Use the
MENU key’s Oxygen sensor
function to recalibrate the
oxygen sensor (see
Chapter 6).
Overriding a fault (oxygen
sensor test only) could result
in inaccurate % O 2
measurement.
Fault if not passed. This test
is optional: pressing CLEAR
at the initial prompt skips
this test.
Skipping this test or
overriding a fault could
result in inadequate
bacteria protection or
excessive resistance to
inspiration or exhalation.
4-10 10066984 Rev. D 700 Series Ventilator Operator’s Manual