Welch Allyn 300 Series Vital Signs Monitor - User Manual - Manual (Page 13)

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Setup
This chapter describes the set-up procedures for patient monitoring.
Connections
Use the procedures described below to connect components to the monitor.
Connecting AC power
The monitor operates on DC power, supplied by either the internal battery or the AC
power adapter. (For information on the battery, refer to
“Battery operation” on page 65
and “Electrical” on page 68.)
When the AC power adapter is connected, it simultaneously powers the monitor and
charges the internal battery. When the AC power adapter is not connected, the monitor
operates on the internal battery.
WARNING Use only accessories approved by Welch Allyn. Visit
www.welchallyn.com . The use of any other accessories can result in inaccurate
patient data, can damage the equipment, and can void your product warranty.
Caution Using an unqualified power adapter can violate isolation requirements.