Flush; Pop Off; 3- Main Menu; Bar Graph Accuracy - BIO-MED DEVICES CROSSVENT-3+ Operation & Service Manual

IX. MAINTENANCE AND SERVICE- cont.
F L U S H F L U S H
F L U S H F L U S H
(Valve D1, D3- if equipped with Exhaled Tidal Volume monitoring)
Using a length of tubing, connect the lower orifice of the Flow Sensor jack on the side of the Crossvent to a
low flow test standard and turn on the Crossvent.
Press SETUP and then CAL MENU.
Activate VALVES.
Turn ON valves A, D1 and D3, and set a flow of 40 LPM.
Check for a flow of 40 - 60 ml/min coming from the orifice.
Move the tubing connection from the lower orifice to the upper orifice in the Flow Sensor jack.
Check for a flow of 40 - 60 ml/min coming from this orifice also.
P O P O F F P O P O F F P O P O F F P O P O F F
Install a patient circuit with the end occluded (plugged, no test lung). Rather than connecting the airway
pressure line to the Crossvent, however, connect this to a low pressure test instrument.
Turn on the CROSSVENT and press the SETUP/CAL MENU/VALVES keys. (If the Crossvent is already
on and the Arrow keys are present, turn it off and back on to make the SETUP key available).
Set the Max Pressure Knob fully clockwise.
Set the flow to 20 lpm.
Turn on Valve A by pressing its corresponding ON/OFF key.
Occlude the exhaust opening of the exhalation valve on the circuit while observing the test instrument
reading. It should indicate between 96 and 144 cmH
Increase the flow until it is at its maximum setting. The pressure should not exceed 144 cmH
3 3 3 3 - - - - MAIN MENU MAIN MENU MAIN MENU MAIN MENU
B A R G R A P H A C C U R A C Y B A R G R A P H A C C U R A C Y B A R G R A P H A C C U R A C Y B A R G R A P H A C C U R A C Y
Disconnect the patient circuit.
Tee the airway pressure fitting on the side of the Crossvent to a low-pressure measurement instrument and a
10-25 ml syringe (or similar).
Turn on the CROSSVENT in the MAIN menu and set:
RATE to 20
TV ml to 500
FLOW to 15
In the ALARM 1 menu, set the PEAK PRESS Alarm high limit to its maximum setting
In the ALARM 2 menu, set the PEEP alarm high and low limits to their maximum settings.
As the unit cycles, slowly depress the plunger on the syringe. Stopping at various pressures along the bar
graph, verify the readings on the bar graph are within ±10% of the readings on the test instrument.
P E E P P R E S S U R E S I G N A L P E E P P R E S S U R E S I G N A L P E E P P R E S S U R E S I G N A L P E E P P R E S S U R E S I G N A L
Connect the Exhalation Valve fitting on the side of the Crossvent to a low pressure test instrument.
With the PEEP Knob fully clockwise, the pressure reading should be 15-20 cmH
B A T T E R Y A L A R M B A T T E R Y A L A R M B A T T E R Y A L A R M B A T T E R Y A L A R M
(This alerts the user they are in battery mode)
Turn on the CROSSVENT without external power.
BATTERY key will flash as well as the LED.
The audible alarm is silenced for 60 seconds when unit is initially powered on.
Press the BATTERY key to acknowledge battery mode and to cancel the Battery Alarm.
The BATTERY key will revert to its normal state with its bar graph indicating the percentage of battery
charge left.
E X T E R N A L P O W E R F A I L U E X T E R N A L P O W E R F A I L U R E A L A R M E X T E R N A L P O W E R F A I L U E X T E R N A L P O W E R F A I L U
Connect the Bio-Med Devices Crossvent Power Supply to the power input on the side of the Crossvent.
(This connector is keyed. Red dot to front of unit.).
With the CROSSVENT turned ON, EXTERNL will appear in the lower left of the display.
After 1 minute of operation, remove external power plug.
EXTERNL will change to BATTERY and flash. The LED will flash and the audible alarm will sound.
Press BATT to stop the alarm.
The BATTERY key will revert its normal state with its bar graph indicating the percentage of battery charge
left.
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R E A L A R M R E A L A R M R E A L A R M
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