6.4.29 Humidifier/Bypass Loose Alarm
Property Description
Alarm text
Humidifier/Bypass Loose
Priority Medium
Alarm condition
The Humidifier/Bypass Loose alarm shall be given when the air
bypass/humidifier latch is stuck in the down position for 5 secs.
Ventilator action The ventilator will continue treatment with the same settings.
Reset action
Reinsert the air bypass unit/humidifier and make sure the latch
closes.
6.5 Alarm Test
6.5.1 Alarm Signal Test
When starting treatment, an automatic alarm signal test is performed. Check that the test is
performed successfully, this is indicated by:
• A short beep indicating functional audio signaling.
• The alarm LED first lights yellow, then red, indicating functional visual signaling.
• The audio pause LED lights yellow.
• In about a second, both LEDs are turned off.
If the test fails, do not use the Nippy 4. Contact your supplier of the Nippy 4 for a technical
check.
6.5.2 Mandatory Alarm Tests
This alarm test should be performed when changing patient, if the ventilator’s function
needs to be checked for any other reason, or at least every 12 months.
The alarm test should be included in the regular inspections during maintenance.
To perform the alarm test, follow the instructions below:
Alarm Test Preparation
1 Connect the ventilator patient circuit to a test lung.
2 Connect the ventilator to Mains power supply.
3 Start the ventilator.
4 Adjust the settings as follows:
Setting Value
Ventilation Mode Pressure Support Ventilation (PSV)
Patient Mode Adult
IPAP
15 cmH
2
O
Alarms
107
Doc. 006553 M-6 User Manual
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