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2.6 USER MAINTENANCE
2.6.1 General Maintenance Information
This section contains information for ordinary
upkeep of the Excalibur Plus PC™.
While the
unit has been designed and manufactured to high
industry standards, it is recommended that peri-
odic inspection and performance testing be per-
formed by a qualified biomedical technician to
ensure continued safe and effective operation.
2.6.2 Cleaning
The exterior of the unit may be cleaned by wiping
it with a cloth that has been dampened (not drip-
ping) with a mild detergent such as Windex®
or
Formula 409® . Windex®
is the registered
trademark of the Drackett Products Company.
Formula 409®
is the registered trademark of the
Clorox Company.
2.6.3 Periodic Inspection
The Excalibur Plus PC™ should be visually
inspected at least every year. This inspection
should include checks for:
* Damage to the power cord.
* Damage to the power plug.
* Tightness of the power plug.
* Tightness of the volume control knob.
*Ргорег mating, cleanliness and absence of
damage to the patient connectors.
* Obvious external or internal damage to the unit.
* Accumulation of lint or debris within the unit
or heatsink.
2.6.4 Periodic Performance Testing
The Excalibur Plus PC™ should be performance
tested at least every year.
Each unit is supplied
with a serialized Product Test Data Sheet which
tabulates the results of the factory tests that were
performed on the unit. This data may be used as
a reference for subsequent tests and should be
made available to the biomedical technician con-
ducting the tests.
2.7 IN CASE
OF DIFFICULTY
2.7.1 Return Monitor Alarm
Trouble with the Return Pad is signalled by illu-
mination of the Return Fault Indicator.
Activation attempts will result in an audible fault
alarm.
Replace Pad if any patient contact has
been lost, and press the Monitor Set key to store
the new resistance for Dual Pad mode.
2.7.1.1 Single Pad Alarm
If a Single Pad Alarm condition exists, confirm
that a single pad is attached to the unit. Check all
Return Pad cable connections and replace pad or
cable if necessary.
2.7.1.2 Dual Pad Alarm
If a Dual Pad alarm exists, check the ASSIST bar
graph for clues to the problem.
A. All of the bars are flashing, the resistance is
too high. This can be caused by inappropriate
pad site, a broken cable, or poor connections to
the unit.
B. More bars are flashing than originally were
when Monitor Set was pressed.
Check to see if
the pad has peeled from the patient or if the unit
has a poor connection.
C. No bars are on.
Check to see if a single pad
has been connected instead of a dual pad.
Confirm a dual pad is not connected to some-
thing highly conductive or folded over on itself.
2-10
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