BIO-MED DEVICES Crossvent-2i+ Operation & Service Manual page 60

VIII. M A I N T E N A N C E
orange tube from the Main Regulator with a tee on the end of it. Remove the orange plug on either side of
this tee and connect the pressure gauge here.)
g. Connect the Patient Connector on the back of the CV-2i+ to a high flow test instrument using a single length
of tubing.
h. Occlude the opening of the D.A.R.V. or turn up PIP if it's calibrated.
i. In the Calibration menu, activate valves, and turn on valve A.
j. Turn the L/min (Flow) Knob fully CW.
k. Turn the Regulator Adjusting Knob until the specification stated in step "d" is met. The pressure as indicated
on the high pressure gauge should be approximately 17 PSI. This pressure will vary slightly from unit to unit
and is dependent upon the pressure required to obtain the maximum flow, therefore no specific pressure is
given. However, if the pressure required is significantly higher or lower than these values, then there may be a
problem such as a leak or restriction.
l. Remove the test gauge and replace the test plug. Snap the locking ring back down in place and replace the o-
ring.
7. AUXILIARY REGULATOR – 17 PSI
Note: Not in all units.
TO TEST:
a. Remove the orange plug from the tee on the clear tube which is connected to the 4-port manifold on the
Auxiliary Regulator. Connect a high pressure test gauge to this tee.
b. With all solenoid valves off and the PEEP and PIP Valves off, the pressure indicated should be 17±1 psi.
IF IT FAILS THE ABOVE TEST, CALIBRATE AS FOLLOWS:
c. Set up the same as steps a & b.
d. Adjust the pressure to 16 – 18 psi by turning the hex screw in the top of the regulator.
8. PEEP SIGNAL - 10 cmH2O
TO TEST:
a. Connect the exhalation valve port on the back of the CV-2i+ to a low pressure test instrument.
b. Fully open the PEEP Valve.
c. Pressure should be 9 - 11 cmH
IF IT FAILS THE ABOVE TEST, CALIBRATE AS FOLLOWS:
d. Set up as in steps a & b.
e. Adjust the PEEP Variable Resistor (131) to obtain c.
9. PIP SIGNAL - 40 cmH2O
TO TEST:
a. Connect the exhalation valve port on the back of the CV-2i+ to a low pressure test instrument.
b. In the Calibration menu, activate valves and turn on valves A and B.
c. Set the flow to 10 LPM (if the flows are not calibrated, then set this using a test instrument).
d. Fully open the PIP Valve.
e. Pressure should be 36 - 44 cmH
IF IT FAILS THE ABOVE TEST, CALIBRATE AS FOLLOWS:
f. Set up as in steps a - d.
g. Adjust the PIP Variable Resistor (130) to obtain 36 - 44 cmH
10. D.A.R.V. SIGNAL - 45 cmH2O
TO TEST:
a. Remove the orange test plug from the cross next to the D.A.R.V. Variable Resistor (130). Connect this barb
to a low pressure test instrument.
b. Fully open the PIP Valve.
c. In the Calibration menu, activate valves and turn on valve A.
d. Set the flow to 10 LPM (if the flows are not calibrated, then set this using a test instrument)
e. Pressure should be 5 cmH
IF IT FAILS THE ABOVE TEST, CALIBRATE AS FOLLOWS:
f. Set up as in a - d.
g. Adjust D.A.R.V. Variable Resistor to obtain pressure in step "e".
11. FLUSH - 50 ML/M
TO TEST:
A N D S E R V I C E - C O N T .
(perform first - 3, 5, 6)
O.
2
(perform first - 4, 5, 6)
O.
2
(perform first - 5, 6)
O above PIP as measured in previous step.
2
(perform first - 5, 6)
55
(perform first – 5,6)
O.
2