Respironics REMstar Choice Service Manual page 9

Battery Specifications for DC Power
Operation:
WARNING: The unit must be connected to a system that has a negative ground.
Polarity:
Using the Respironics DC cord to a 12 V
battery, (for Pressures less than 11 cm
H O):
2
Power Consumption:
Current Requirements:
Battery Size Recommended:
Using the Respironics DC Interface
Module, (for Pressures over 11 cm H
Power Consumption:
Current Requirements:
Battery Size Recommended:
REMstar Service Manual
The REMstar family of products can be used in a motor vehicle
that has a working cigarette lighter and a fully charged Deep-
Cycle Battery (see below). For pressures less than 11 cm H
connect the unit to the cigarette lighter using a Respironics DC
Cord. For pressures greater than 11 cm H
the cigarette lighter using a DC Interface module.
On the unit end of the cord, the outside of the barrel is
ground, and the inside is positive. On the cigarette lighter
adapter end, the center pin is positive and the outside tab is
ground.
40 Watts maximum
2.5 Amps DC maximum.
12 VDC Deep-cycle marine-type battery with a 24 Amp-hour
rating (minimum) for 8 hours of use.
NOTE:
O):
2
80 Watts maximum. Typical requirements are less than 50
Watts.
6.2 Amps DC maximum. Typical current requirements are 3.5
Amps DC.
12 VDC Deep-cycle marine-type battery with a 90 Amp-hour
rating (minimum) for 8 hours of use.
NOTE:
Specifications and Wiring Diagram
For proper operation, the battery voltage must
remain greater than 11.5 Volts for the duration
of unit use. As the voltage drops below this
point the unit emits a buzzing sound.
For proper operation, the battery voltage must
remain greater than 11.5 Volts for the duration
of unit use. As the voltage drops below this
point the unit emits a buzzing sound.
O,
2
O, connect the unit to
2
1-3