Flow Sensor (Pneumotach); Oxygen Sensor Connector; Exhalation Valve Connector; Airway Pressure Connector - BIO-MED DEVICES CROSSVENT-3+ Operation & Service Manual

III. SPECIFICATIONS, CONNECTIONS & USER INTERFACE cont'd.
whenever possible. Because NiMH batteries will naturally "self-discharge", it is strongly recommended the
battery be cycled through at least one charge/discharge according to the table below if left off the power
supply for an extended period of time.
WARNING: Never operate the CROSSVENT without a battery since it will fail to
operate if the plug-in power supply is removed.
CAUTION: The battery should be replaced at least every two years. Only use batteries
supplied by Bio-Med Devices, part #PRT4467. Do not substitute.
F L O W S E N S O R ( P N E U M O T A C H ) F L O W S E N S O R ( P N E U M O T F L O W S E N S O R ( P N E U M O T F L O W S E N S O R ( P N E U M O T
The pneumotach (use is optional) plugs in here and permits the measurement of flow, which is used to
display Exhaled Tidal (or Minute) Volume. Only the pediatric/adult pneumotach can be used with this
ventilator. If any other pneumotach is plugged in, a warning will be displayed in the Alarm 1 menu.
CAUTION: Do not apply tension to the flow sensor tubing. Do not allow the sensor to be
in the patient circuit but not connected to the ventilator when ventilating.
CAUTION: The pressure connection tubes of the pneumotach should always be mounted
vertically to prevent collection of condensate in the pressure tubes. The tubes should be
inspected periodically and condensate should be removed.
erroneous readings and thus improper operation of the CROSSVENT. Never block these
connections with the unit operating as this can damage the internal transducer. Always
securely connect the pneumotach to its connector before inserting the pneumotach in the
flow stream. This will prevent possible damage to the internal transducer and will also
prevent humidified gas from inadvertently blowing up the pneumotach sensing lines.
O X Y G E N S E N S O R C O N N E C T O R O X Y G E N S E N S O R O X Y G E N S E N S O R O X Y G E N S E N S O R
O sensor (use is optional) plugs in here. This measures the oxygen concentration of the gas mixture being
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delivered to the patient and is displayed in the Alarm 2 menu.
WARNING: For proper operation, only the O
used.
E X H A L A T I O N V A L V E C O N E X H A L A T I O N V A L V E C O N N E C T O R E X H A L A T I O N V A L V E C O N E X H A L A T I O N V A L V E C O N
The tube to the exhalation valve on the patient circuit connects here and provides the pressure signal to
operate the exhalation valve.
diaphragm which sets the Maximum Pressure Limit. During expiration it provides zero or PEEP/CPAP
level pressure to the exhalation valve diaphragm.
A I R W A Y P R E S S U R E C O N N E C T O R A I R W A Y P R E S S U R E C O N N
A I R W A Y P R E S S U R E C O N N A I R W A Y P R E S S U R E C O N N
The proximal airway pressure tube on the patient circuit connects here. This allows the CROSSVENT to
monitor airway pressure and also to detect patient inspiratory efforts.
P A T I E N T G A S C O N N E C T O R R R R P A T I E N T G A S C O N N E C T O
P A T I E N T G A S C O N N E C T O P A T I E N T G A S C O N N E C T O
The main patient corrugated hose is attached here. It provides the un-humidified breathing gas mixture to
the patient circuit.
A L A R M R E S E T S W I T C H A L A R M R E S E T S W I T C H
A L A R M R E S E T S W I T C H A L A R M R E S E T S W I T C H
Pressing this button silences the alarm of the Power Failure circuit, which is a separate section of the main
circuit board.
This circuit monitors the power to the main circuit board. If power is lost, either as a result of turning the
main power switch off or a total power failure to the circuit board, i.e., no external power and no battery, it
sounds an audible alarm (long tone) and flashes the LED, which will continue for at least 3 minutes after
failure. Pressing the Alarm Reset Switch permanently silences the audible alarm.
WARNING: To obtain the full 3-minute duration of the Power Failure alarm when
power is lost, the Crossvent must have been powered on for at least 1 minute prior
to the failure.
Storage Temperature Range
104°F to 122°F (40°C to 50°C)
86°F to 103°F (30°C to 39°C)
32°F to 85°F (0°C to 29°C)
A C H ) A C H ) A C H )
C O N N E C T O R C O N N E C T O R C O N N E C T O R
N E C T O R N E C T O R N E C T O R
During inspiration it applies a pressure signal to the exhalation valve
E C T O R
E C T O R E C T O R
Time to Charge/Discharge
Less than 30 Days
30 to 60 Days
61 to 90 Days
This condensate may cause
sensor supplied by Bio-Med Devices may be
2
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