Covidien Puritan Bennett 700 Series, Руководство по обслуживанию

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Self-tests
3-14 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual
9
I/E filter test Checks pressure drop
across inspiratory and
expiratory limbs of
entire patient system.
Checks pressure drop
across filters. Fault if not
passed Yes Mandatory in EST, but optional
in SST.
Disconnect and reconnect
inspiration (I) tube from/to
inspiratory filter outlet, and
exhalation (E) tube from/to
expiratory filter inlet, as
directed. Block and unblock wye
with a no. 2 stopper, as directed.
Press ACCEPT to signify you have
performed each requested
action.
NOTE:
Overriding this fault could result in inadequate bacteria protection or excessive resistance to inspiration
or exhalation.
10
PEEP system test Verifies PEEP system can
generate and maintain
preset PEEP levels Failure if not
passed Yes, but
not
identical Verifies PEEP system can
generate and maintain preset
PEEP levels within either of two
sets of limits. If results are within
the inner set of limits, test passes
the first time. If the results are
outside of the outer set of limits,
test fails the first time. If the
results are outside the inner
limits but within the outer limits,
the ventilator adjusts its
calibration table in nonvolatile
RAM (NVRAM) and repeats the
test to verify the calibration. The
test fails if the calibration cannot
be verified after five attempts.
11
Check valve test Checks check valve
outlet port of cylinder Failure if not
passed No
12
Piston leak test Checks piston leak
against a table of leak
values stored in NVRAM Failure if not
passed No First remove inspiratory filter;
then block and unblock
inspiratory filter port as
directed, using no. 3 stopper.
Press ACCEPT to signify you have
performed each requested
action. Replace inspiratory filter
at end of test.
13
Lights-displays
test Verifies lights and
displays function Failure if not
passed No Observe each named display,
and press ACCEPT to verify it is
lit. Press CLEAR if a display is not
lit.
14
Keys test Verifies every row and
column of key matrix
can be correctly read Failure if not
passed No Press each named key (each key’s
LED will also be lit). Press CLEAR
if a key’s LED is not lit.
Table 3-8: EST tests (continued)
No. Test Purpose Status In SST? Comments