Chapter 8
8-28
Esprit® Ventilator Service Manual © Respironics, Inc.
REF 580-1000-02 G
Performance Verification
18. Select
ALARM
on the signal selector box or refer to Figure 8-22 for
pinouts.
19. With a ventilator alarm active, the DMM should read 0 V (±0.1 V).
20. Replace the test lung to the patient wye: verify that the audible alarm
is automatically silenced and the DMM reads 1.25 to 1.75 V.
21. Select
NEBULIZER
on the signal selector box or refer to Figure 8-22
for pinouts.
22. Confirm that the voltage toggles between 0 V (+ .1 V) during
exhalation and 5 volts (+ .6 V) during inhalation.
23. Cycle power and start the ventilator in diagnostic mode by
simultaneously pressing the
ALARM
RESET
and
100% O
2
keys on the
front panel for approximately five seconds while turning ventilator
power on, then touch
OK
to enter diagnostics mode.
24. Touch the hardware key, then select
MONITORS
and set the voltage to
2.0 VDC.
25. Select
PRESSURE
, then
VOLUME
, then
FLOW
on the signal selector
box or refer to Figure 8-22 for pin outs and verify the DMM reads 2 V
(+ .3 V) at each setting.
26. Select
MONITORS
and set the voltage to 4.0 VDC.
27. Select
FLOW
, then
VOLUME
, then
PRESSURE
on the signal selector
box or refer to Figure 8-22 for pinouts and verify the DMM reads 4 V
(+ .5 V) at each setting.
28. Disconnect the Analog Output Port Selector Box or DMM test leads
from the analog output port.
29. The alarm/analog output signals, alarm volume, and remote alarm test
is complete.
Gas Volume Accuracy (Test 9)
The gas volume accuracy test verifies the accuracy of the tidal volume
delivered to the patient.
1. If the ventilator is not already in normal ventilation mode, cycle power
to the ventilator to enter normal ventilation mode.
2. Select these ventilator settings and alarm limits:
