Weinmann VENTIlogic LS Instructions For Use Manual page 74

Function check using a double patient circuit with patient valve (VENTIlogic LS
only)
7.2.5 Alarms
The therapy device performs a self-test on the sensor system when the On/Off key
pressed which also checks that the alarm system is working. If a fault occurs during the self-
test, an error message appears in the main screen (see also "8. Troubleshooting" on
page 79).
1. Check buzzer and LEDs:
Ensure each time you switch on that two different acoustic signals sound one after the
other and that the yellow and red LEDs come on at the same time.
2. Check the No power supply alarm (power supply failure alarm):
Start up the therapy device. Now take the power cord out of the socket. The internal
battery assumes power supply, the two buzzers sound and the yellow LED comes on.
The low-priority alarm window No power supply appears. Plug the power cord into
the power socket again. The alarm should no longer be displayed.
7.2.6 Oxygen supply
Caution!
If a compressed gas system is used instead of an oxygen concentrator, an
overpressure valve must be fitted.
Note:
A function check can only be performed on the oxygen valve if the oxygen supply
has been activated by the doctor beforehand.
Proceed as follows to perform a function check of the oxygen valve.
1. Start up the therapy device.
2. For hospital staff only: Ensure that the oxygen supply is activated.
3. Connect the oxygen source to the therapy device and start it up.
74 EN
Function check
1. Connect the patient circuit to the device.
2. Plug the test adapter supplied onto the patient
connection.
3. The subsequent steps are described in "Check flow
measurement and flow sensors/pressure sensors
(leakage ventilation)" starting from step 2.
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