Smiths Pneupac babyPAC 100, Manual

Page: 15 / 31

504-2038NUS
15
March 2005
4. Check function of alarms and indicators (continued)
(refer to Figure 2)
When the air supply is depleted the ventilator may pause but will then continue to operate on the
oxygen supply. If the ventilator fails to change over it should be returned to the manufacturer
for repair.
x) Depress the Silence/Mute button and the electronic audible alarm should silence for 60
seconds. After this 60-second period has elapsed, depress the button again and the audible
alarm will now remain muted, the second depression being interpreted as an
acknowledgement by the operator that single gas operation has been recognised. The ‘single
gas operation’ LED will continue to operate to indicate this mode.
xi) Set the Oxygen Concentration control to its maximum (100%) position.
xii) Turn off the oxygen supply.
xiii) Repeat step ix) above but this time the oxygen supply gas failure visual alarm should change
to red and the audible alarms should sound. After 60 seconds the alarm system should switch
itself off in order to protect the battery if the ventilator is left in a potential alarm condition
after use.
xiv) Select ‘0’.
xv) Turn on the oxygen supply only.
xvi) Select CMV + PEEP. No audible alarm should sound as the condition of one gas supply only
at start up is taken as an intended condition. The ‘single gas operation’ LED will, however,
continue to flash as a reminder that this mode of operation has been selected.
xvii) Select ‘0’.
xviii) Remove the battery and insert a standard 1.5v AA size battery in its place. Select
CMV+PEEP. The alarms should show as in viii) above but the low battery light should also
flash.
xix) Select ‘0’. Refit the original battery. Turn off the oxygen supply and disconnect from the
supply connector.
5. Carry out lock off leak test to input supply connections
i) Connect an isolation valve with a calibrated 0-700 kPa (0-100 psi) gauge to the oxygen
supply.
ii) Connect the oxygen supply hose to the isolation valve.
iii) Check that the isolation valve is open.
iv) Turn on the gas supply and note the pressure indicated.
v) Close the isolation valve and check that the pressure retained between valve and the ventilator
does not drop by more than 20 kPa (3 psi) in 30 seconds.
vi) If the pressure drops faster check that there is no leakage at the connections on the isolation
valve, supply hose and ventilator. Also check that there is no leakage of gas from the air hose
probe indicating a cross leak. No external leak would indicate an internal leak and the
ventilator should be returned to the manufacturer for repair.
vii) Disconnect the oxygen supply and open the isolation valve to purge the hose.
viii) Repeat the test above for the air supply connection.