241434C
Ranger Blood/Fluid Warming
English 11
c
ondition
c
ause
s
olution
Unit alarms soon after
•
plugging it in (unit does not
have to be turned on for
this condition to occur)�
Heater temperature rises
•
to 44°C (warming units
Rev N and newer) or 46°C
(warming units Rev A to
M) and unit shuts down
soon after plugging it in
(unit does not have to be
turned on for this condition
to occur)�
Test screw on bottom of unit is
loose or missing�
Make sure test screw is
completely tightened� If it
is missing, turn unit off
and unplug it� Call Arizant
Healthcare Customer Service�
c
ondition
c
ause
s
olution
Alarm sounds but unit has
been turned off�
Independent backup safety
system has been activated�
Unplug unit� Call Arizant
Healthcare Customer Service�
c
ondition
c
ause
s
olution
Cannot remove warming
cassette from unit�
Warming cassette is too
•
full, fluids are still being
infused, or clamp is open
proximal to the warming
cassette�
Make sure fluid is drained
•
from warming cassette
before sliding out the
cassette, that fluids are no
longer infusing, and that
clamp is closed proximal to
the warming cassette�
Warming unit is below
•
patient level, creating
excessive back pressure
Raise unit above patient
•
level�
c
ondition
c
ause
s
olution
Alarm indicator light
illuminates and alarm
sounds, alphanumeric
display alternately flashes a
temperature of 33°C or below
and the word “LO�”
Under temperature condition
caused by very high flow using
very cold fluid, or defective
heater/relay�
Alarm should stop when
temperature rises above 33°C�
If alarm continues, unplug
unit and discontinue use� Call
Arizant Healthcare Customer
Service�
c
ondition
c
ause
s
olution
Alphanumeric display reads
“Er 4” or “Open�”
Open wire on temperature
sensor�
Do not use unit� Call Arizant
Healthcare Customer Service�
c
ondition
c
ause
s
olution
Alphanumeric display reads
“Er 5” or “Open�”
Electrical interference�
Remove the unit� Refer to
biomedical technician or call
Arizant Healthcare Customer
Service�
