Personal Ambulatory Oxygen System
Provider Technical Manual
20771733 D 9
Power Supplies
The eQuinox may operate from either the AC Power Supply, DC Power
Cable or Battery Pack. When power is available from an external supply,
the eQuinox will draw from the external source rather than depleting
the Battery Pack. Connection to external power is indicated when
the External Power Present Indicator located on the Control Panel is
illuminated.
AC Power Supply
The AC Power Supply is a universal input type, capable of accepting
100-240VAC, 50/60 Hz. It is capable of delivering up to 150W of 28VDC
output. The input cord requires a grounded receptacle. Country
specific cords or universal power adapter PN 5591-SEQ may be used
with the AC Power Supply, as the power supply is equipped with
a universal input receptacle. When used in a medical care facility,
international safety standards require the use of hospital grade AC
power cord with the eQuinox.
Figure 3: eQuinox AC Power Supply
The eQuinox AC Power Supply does not contain a fan. When in use, the
AC Power Supply should be located in a well-ventilated area.
Located near the output cord, there is a green LED that is illuminated
when the AC Power Supply is supplying 28VDC power. If the LED is not
illuminated, there is no input power available. In addition, the Power
Supply contains protection circuits for output over-current, input
over-voltage, and internal over-temperature conditions. If any of these
conditions exist, output power will be interrupted and the LED turns
off. However, these three conditions are self-resetting, such that output
power will resume when protection circuits fall back into acceptable
operating ranges.
DC Power Cable
The DC Power Cable is intended for use with DC accessory outlets,
such as those found in motor vehicles. Input voltage required to power
the eQuinox from via the DC Power Cable is 11.5 - 16VDC. The 12 Volt
DC Power Cable is sized to compatible with most passenger vehicle
electrical systems.
Figure 4: eQuinox DC Power Cable
The eQuinox will run at all flow settings when being operated with
the DC Power Cable in a vehicle including 3.0LPM on continuous flow
and all pulse settings 1-9. The eQuinox will charge the Battery Pack
while being operated with the DC Power Cable, including 3.0LPM
continuous flow and 192mL in pulse mode. Some vehicles may not be
able to supply enough power to sustain these settings. In the event
the vehicle cannot provide enough power to operate at the current
setting, the eQuinox will first stop charging the battery. If the vehicle
still cannot provide enough power the eQuinox will lower the flow.
If the lower flow causes the patient discomfort or is causing patient
saturation levels to decrease, removing the Battery Pack may increase
the flow.
Battery Pack
The Battery Pack allows operation away from AC or DC power. The
Battery Pack used with the eQuinox contains Lithium ion battery
cells, similar to those used in laptop computers and cell phones. The
standard 12-cell eQuinox Battery Pack contains a single 89 Watt hour
battery pack which contains 7.38 grams of equivalent lithium content.
The optional 24-cell eQuinox Battery Pack contains a quantity of two
95 Watt hour battery packs. Each battery pack contains 7.92 grams of
equivalent lithium content, or 15.82 grams total.
Figure 5: eQuinox Battery Pack
