Welch Allyn 4802D - Scale Operation and Configuration; Battery Replacement and Scale Setup

Scale operation
Power options
The scale can be used with battery power or with AC power.
Press the power button to turn on the scale. When connected to AC power, the green
AC power indicator illuminates.
Battery power
CAUTION Use only size D disposable alkaline batteries. The use of any
other battery will void the warranty.
Press the power button to turn on the scale.
The scale automatically turns off after 90 seconds of non-use when operating on battery
power.
The LOW BATTERY indicator illuminates when the battery power is low.
bAttrY displays when the batteries are unable to properly power the scale.
Replace the batteries when either of these messages are displayed.
AC power
When plugged in, the scale continuously runs on AC power automatically, depending on
your settings.
To disconnect the scale from AC power, either remove the power adaptor from the wall
or the back of the scale. Make sure to position the scale so that it can be easily
disconnected from AC power.
The scale switches to battery power when AC power is not present.
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