C- Manual Controls And Connections; 1- Front Of Ventilator; Flow Control Knob; Maximum Pressure Knob - BIO-MED DEVICES CROSSVENT-3+ Operation & Service Manual

III. SPECIFICATIONS, CONNECTIONS & USER INTERFACE cont'd.
C C C C - - - - MANUAL CONTROLS AND CONNECTIONS MANUAL CONTROLS AND CONNECTIONS MANUAL CONTROLS AND CONNECTIONS MANUAL CONTROLS AND CONNECTIONS
1 1 1 1 - - - - FRONT OF VENTILATOR FRONT OF VENTILATOR
FRONT OF VENTILATOR FRONT OF VENTILATOR
F L O W C O N T R O L K N O B F L O W C O N T R O L K N O B F L O W C O N T R O L K N O B F L O W C O N T R O L K N O B
Adjusting this knob sets the inspiratory flow from 0 - 120 lpm. The
Flow setting is displayed in the FLOW key on the display. It is
accurate from 1 to 120 lpm.
WARNING: In
Crossvent with an air/oxygen blender, there may be a
reduction in the delivered flow at the higher flow
settings. This reduction may occur when the blender is
set below 30% or above 90% O
to flows above 80 lpm. Lower supply pressures to the
blender will tend to decrease the flow further so be sure
these supply pressures are maintained at 45- 75 PSI
(310-517 kPa).
tidal volume
recommended this be used to ensure proper tidal
volumes are being delivered.
spirometer is recommended.
NOTE: With the optional entrainment on, flow accuracy from 5 - 100 LPM is ±10% or 1 LPM, whichever
is greater, and with a flow of 100 LPM and over, flow accuracy is within 15% of displayed flow. No accuracy
is claimed below 5 LPM.
When air entrainment is on, verify the message "ENTRN" is displayed in the Inspiratory Source Key.
Set the FLOW after entrainment is turned on since the flow calibration is automatically adjusted for
entrainment. It is not recommended that entrainment be turned on or off while ventilating. However, if this
should become necessary, then it should be done during the expiratory phase of the breathing cycle. Be aware
that this will change the flow.
M A X I M U M P R E S S U R E K N O M A X I M U M P R E S S U R E K N O B B B B M A X I M U M P R E S S U R E K N O M A X I M U M P R E S S U R E K N O
Adjusting this knob sets the pressure applied to the exhalation valve and to an internal adjustable relief
valve. This determines the maximum pressure during assisted and controlled inspirations. It is adjustable
from 0 - 120 cmH O. It should always be operative and properly adjusted.
2
NOTE: While connected to an active gas source, the Maximum Pressure control should be turned off (fully
counter clockwise) when the Crossvent is not in use to conserve gas.
P E E P K N O B P E E P K N O B P E E P K N O B P E E P K N O B
(Positive End Expiratory Pressure)- Adjusting this knob sets the PEEP or CPAP (Continuous Positive
Airway Pressure) level applied to the exhalation valve. It is adjustable from 0- 35 cmH
is determined by observing the system pressure bar graph or with the PEEP/CPAP readout on the
secondary alarm menu.
NOTE: The Maximum Pressure should always be set higher than PEEP in order to achieve the PEEP
setting.
NOTE: While connected to an active gas source, the PEEP control should be turned off (fully counter
clockwise) when the Crossvent is not in use to conserve gas.
A U D I B L E A L A R M A U D I B L E A L A R M
A U D I B L E A L A R M A U D I B L E A L A R M
Located next to the BMD logo on the front of the unit, it emits the audible tones to indicate an alarm
condition or keyboard actuation.
WARNING: It should never be obstructed.
NOTE: Refer to Appendix E for all the beeper codes.
A L A R M A L A R M L E D A L A R M A L A R M L E D L E D L E D
This flashes on and off in equal duration during any alarm providing 360-degree visibility. When unit is
turned off or loses power, it flashes for 3 minutes. This time may be less if the Crossvent was not powered
on for at least 1 minute prior to loss of power.
rare instances, when
and the Crossvent is set
2
If the Crossvent has the exhaled
monitoring feature,
If it does not have this feature, then an external
using the
MAX PRESS
it is
FIG. 1- FRONT VIEW
A/C
OFF
3
+
PEEP FLOW
O. The PEEP level
2
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11 11