Dolphin CPAP. User manual
Maintenance (Pulse Oximeter)
Under normal operation, no internal adjustment or recalibration is required to
operate the pulse oximeter of the Dolphin CPAP. If you think maintenance is required,
contact your MTTS representative.
Do not allow liquids to enter the interior of the instrument.
device and cause damage to internal components.
Do not touch, press, or rub the display with abrasive cleaning compounds,
instruments, brushes, rough-surface materials, or bring them into contact
with anything that could scratch the display’s surface.
Do not use alcohol, petroleum-based or acetone solutions, or other harsh
solvents, to clean the device. These substances attack the device’s materials
and device failure can result.
Before cleaning the pulse oximeter display, always turn it off and make sure
the AC power cord is disconnected.
To clean the display panel or outer surface of the Dolphin CPAP housing, use a clean
cloth moistened with a mild detergent solution to gently wipe the target surfaces.
Cleaning
Refer to the previous section
Sensors & Patient Cables (Pulse Oximeter)
for
cleaning instructions for sensors and patient cables.
Maintenance (Pulse Oximeter)
Do not use the Dolphin CPAP if the pulse oximetry monitoring features are
malfunctioning. Have the unit repaired. In order to have the unit repaired, contact your
MTTS representative.
Service and repair
To test the performance of the pulse oximeter following repairs or during routine
maintenance, follow the procedure outlined in this section. If the pulse oximeter fails
any of the described tests, discontinue its use and correct the problem before
reconnecting the device to the patient.
Before performing the following tests, verify the device is connected to AC power and
disconnect any patient cables or pulse oximetry probes from the device.
Power-On Self-Test:
1. Turn the monitor on by pressing and holding the power button for 2 seconds.
All available LEDs will illuminate and a brief alarm tone will sound.
2. The pulse oximeter will begin normal operation.
Key Press Button Test:
1. Press the alarm silence button and the pulse sound silence button each once.
Verify that the light adjacent to each button toggles on or off at the press of the
button.
Alarm Limit Test:
1. Initiate a change in saturation alarm limits by pressing the “percent sign”
button. Change the high saturation alarm parameter to a value two points below
the currently selected value. Press OK. Change the low saturation alarm
parameter to a value two points below the currently selected value. Press OK.
2. Initiate a change in pulse rate alarm limits by pressing the “heart” button.
currently selected value. Press OK. Change the low pulse rate alarm parameter to
Performance Verication
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