A-4
OPRHT50NA B0908
QUICK CHECK PROCEDURE
3. Paw Monitor / Pressure Meter Check
• The purpose of this check is to compare the pressure reading
of the Paw meter to the airway pressure displayed in the
Message Display Window.
• Press the
▲
Up control until “Paw/P/M/B” is displayed. Wait for
two or three breaths for pressures to display. Verify that both
the Paw meter and the Message Display Window peak
pressure are within 10% or ± 2 cmH
2
O/mbar of each other,
whichever is greater.
• Adjust PEEP/CPAP to 5 cmH
2
O/mbar. Verify that both the Paw
meter and the Message Display Window show the baseline
pressure within ± 2 cmH
2
O/mbar. Reduce PEEP/CPAP to zero.
• Select Pressure Control and set pressure at 20 cmH
2
O/mbar.
Verify that both the Paw meter and the Message Display
Window read a peak pressure that is within ± 3 cmH
2
O/mbar
of each other.
• Place the ventilator in Volume Control by pressing the Volume
Control button twice.
4. Volume/Frequency Monitor Check
• Press the
▲
Up control until “VT/ V
•
i/f” is displayed. Verify that
VT= 450-550, V
•
i = 6-9 and ƒ = 13-17 is displayed.
5. Internal Battery Check
• Unplug the HT50 from AC power, clear the alarm with the
Alarm/Silence button and then press and hold the Int. Battery
(Push to Test) button while powered on internal battery. Verify
that the Int. Battery charge level needle on the Paw (airway
pressure) meter is in the blue zone. This indicates the dual
internal battery is charged.
T
HIS
C
ONCLUDES
T
HE
Q
UICK
C
HECK
P
ROCEDURE