Welch Allyn 206EL Propaq Encore Vital Signs Monitor - User Manual - Manual (Page 94)

90 Power sources Welch Allyn Propaq Encore Vital Signs Monitor
Power-adapter configurations
Power-adapter part numbers are listed with their rated input, fuse, output, and applicable
usage. Check to be sure you are using the correct power adapter for your mains power
source by comparing the part number on the power adapter to the table below. Always
replace fuses with the fuses rated for the power adapter.
Replacing the power-adapter fuses
The Power Adapter contains two fuses that can easily be replaced by service personnel if
necessary. The adapter can contain spare fuses.
Procedure
1. Unplug the power adapter’s removable cord from the ac mains outlet and the power
adapter.
2. Turn the power adapter so you can see the window that indicates the voltage setting.
3. Using a small, flat-blade screwdriver, carefully pry the fuse module from the power
adapter.
4. Replace both fuses with the specified type.
Part number/connector style Rated input
voltage
Rated serviceable
fuses
Rated
output
Application
With power switch 503-0054-00
Without power switch: 503-0093-XX
100V-120V ac,
500 mA,
50/60 Hz T800 mA/250V
Time-Delay
5 x 20 mm 16-24V dc
25 VA
25 Watt requirement
in countries with
100V-120V power
systems.
With power switch 503-0054-01
Without power switch: 503-0092-XX
200V-240V ac
250 mA,
50/60 Hz T400 mA/250V
Time-Delay
5 x 20 mm 16-24V dc
25 VA
25 Watt requirement
in countries with
200V-240V power
systems.
Caution Replace each fuse only with the specified type.
Note Both fuses should be replaced at the same time, even if only one fuse has
opened due to an overcurrent situation. The unopened fuse may have been
stressed and could become unreliable.
Caution Spare fuses are contained in housings next to the fuses in the fuse
module as shown in the following picture. Between the fuses is a small printed-
circuit board (PCB) that sets the power adapter to the desired ac mains voltage.
When handling the fuse module, the PCB may slide out.
Caution If the small PCB between the fuses has slipped out of place, slide it
back into place in the fuse module, and verify that the voltage setting indicated in
the window on the fuse module is correct. If the voltage setting is incorrect,
simply slide the PCB out of the fuse module, rotate it 180° and slide it back into
place.