3100B HFOV Operator Manual - CareFusion

44 3100B HFOV
REF CONTROL
FUNCTION
After the correction of the condition that triggered the Safety Alarm, the oscillator startup procedure
must be followed for reset. This is discussed in Chapter 7 Operational Verification & Start-up.
12. Pa < 5 cmH2O The red LED indicates activation of this Safety Alarm. It is also indicated by a 3K-Hertz modulated
tone. This alarm triggers at a Pa 60 cmH2O and < 5 cmH2O Safety Alarms (11 and 12) must
first be corrected before resetting will occur. Since these alarms cause the Dump Valve to open,
Reset must be held in with the Start/Stop enabled until the Dump Valve closes and airway pressure
builds above the 5 cmH2O Pa level.
The Power Failure alarm (13) will be reset regardless of whether the alarm condition has been
corrected or still exists.
It is normal for the Battery Low LED to light when the reset button is pressed.
15a. Battery Low Indicates the Power Failure alarm battery (25) on the rear panel of the Control Package must be
changed as soon as possible to ensure continued proper operation of the Power Failure alarm.
15b Source Gas Low Indicates the gas pressure at the “Inlet From Blender” or “Air Cooling” connection has fallen below
30 psig.
Since the Battery Low and Source Gas Low are classified as caution alarms, yellow LEDs are used,
and there is no audible indicator. These alarms will reset only after the battery has been replaced by
a new one or the source gas pressure increases above 30 psig, respectively.
The user should investigate the cause of the alarm. If the problem is a loss in blender output
pressure, the Warning or Safety Alarms will soon be activated. If the problem is a loss of oscillator
cooling air, the Oscillator Overheated alarm will soon activate. This alarm can occur due to plugging
of an Inlet Filter Cartridge with dirt. Refer to the Operator Maintenance Procedures section of
Chapter 7 for instructions on changing the Inlet Filter Cartridges.
The battery will be discussed further in the next section covering the operation and location of the
rear panel controls, indicators, and connections.
16. Oscillator
Overheated
Indicates that the oscillator coil is overheated and has reached approximately 150°C. Since this is a
Caution Alarm, a yellow LED is used, and there is no audible indicator. This alarm will reset only
after the condition has been corrected. The operator should determine if the problem is a loss of, or
767164–101 Rev. R