User's Manual

Root Chapter 11- Service and Maintenance
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Masimo
Replacing the Fuses
If a power-related problem causes one or both of the fuses to fail, the fuse(s) will
need to be replaced. Replace fuse(s) with UL Listed fuses rated fast-acting, 250V, 2
amp, metric, 5x20 mm and with a breaking capacity of minimum 1500A.
WARNING: To ensure safety, only replace with appropriately rated fuses.
The fuses can be removed by hand or with a 5-millimeter or 3/16-inch screwdriver.
To replace the fuse(s)
1. Power Off Root completely. Do not put in Standby Mode. See Standby
and Power Off.
2. Remove the AC power cord from the Power Entry Module in the back
panel.
3. Remove the fuse holder by pulling it forward from the Power Entry
Module.
4. Remove a fuse by gently pulling the top of the fuse away from the center
and then pulling up. The fuse should easily be removed. Do not force.
5. Place a new fuse in the fuse holder.
6. If replacing both fuses, repeat steps 4 and 5 for the second fuse.
7. Slide the fuse holder back into the Power Entry Module and press firmly
to make sure it is secure.
Root is ready to be reconnected to AC power. If the fuses fail shortly after
replacement, Root requires service. See Repair Policy.
Power-On Self Test
To conduct a Power-On Self Test
1. Connect Root to AC power, and verify that the AC Power Indicator is
illuminated.
2. Power On Root. Within five (5) seconds, all available indicators will
illuminate, the device will emit a tone, and the Masimo logo will display.
Nurse Call Setting Connections
For maximum flexibility, either normally open or normally closed signals are
available. During an alarm condition or a low Signal IQ event, depending on the
configuration of the device output, the normally open pin will be connected to the
common pin and the normally closed pin will be disconnected. In addition, the