Respironics Millennium - 5.2 Battery Test and Replacement

Chapter 5: Verification Procedures
RESPIRONICS”
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5.2 Battery Test and Replacement
Procedure: 9-Volt
Battery
Step 1 Test the condition of the 9-volt battery as follows.
a. With the unit disconnected from the power source,
move the power switch to the ON (I) position and
verify that the red LED alarm illuminates and the
audible alarm sounds.
b. Ifthe red LED does not illuminate or the audible
alarm does not sound, install a new 9-volt battery.
Be sure to move the power switch to the OFF (0)
position, then proceed as follows.
1). Remove the rear access door.
2). Remove the inlet pre-filter and the inlet filter.
Figure 5-1
3). Locate the 9-volt battery and the battery Location of the 9-volt Alarm Battery
holder clips. Remove the battery from its
holder.
4).. Remove the battery connector from the
battery and check the no-load voltage with a
digital multi-meter. If the voltage is less than
5 volts, install a new battery.
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