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21
202524A
3M
TM
Ranger
TM
Blood/Fluid and Irrigation Warming Systems
Check the 3M
TM
Ranger
TM
system website to ensure you have the most recent version of this document. www.rangerfluidwarming.com reorder #202524ACheck the 3M
TM
Ranger
TM
system website to ensure you have the most recent version of this document. www.rangerfluidwarming.com reorder #202524A
CONDITION
CAUSE
SOLUTION
•Unitalerts soon aer plugging it in
(unit does not have to be turned on
for this condition to occur).
•Heatertemperaturerisesto44°Cfor
Model 245 (50°C for Model 247) and
unit shuts down soon aer plugging
it in (unit does not have to be turned
on for this condition to occur).
Over-temperature screw on
bottom of unit is loose or
missing.
Make sure over-temperature screw is
completely tightened. If it is missing,
turn unit o and unplug it. Call 3M
Patient Warming technical support.
CONDITION CAUSE SOLUTION
Alert sounds but unit has been turned
o.
•Independentbackupsafety
system has been activated.
•Over-temperaturescrew
loose.
•Unplugunit.Call3MPatient
Warming technical support.
•Makesureover-temperaturescrewis
completely tightened. If it is missing,
turn unit o and unplug it. Call 3M
Patient Warming technical support.
CONDITION CAUSE SOLUTION
Cannot remove cassette from unit. •Cassetteistoofull,uids
are still being infused, or
clamp is open proximal to
the cassette.
•Warmingunitisbelow
patient level, creating
excessive back pressure.
•Makesureuidisdrainedfrom
cassette before sliding out the
cassette, that uids are no longer
infusing, and that clamp is closed
proximal to the warming cassette.
•Raiseunitabovepatientlevel.
CONDITION CAUSE SOLUTION
Alert indicator light illuminates and
alert sounds, alphanumeric display
alternately ashes a temperature of
33°C or below and the word “LO.”
Under-temperature
condition caused by very
high ow using very cold
uid, or defective heater/
relay.
Alert should stop when temperature
rises above 33°C. If alert continues,
turn o unit, unplug unit and
discontinue use. Call 3M Patient
Warming technical support.
CONDITION CAUSE SOLUTION
Alphanumeric display reads “Er 4” or
“Open.”
Open wire on temperature
sensor.
Do not use unit. Call 3M Patient
Warming technical support.
CONDITION CAUSE SOLUTION
Alphanumeric display reads “Er 5” or
“Open.”
Electrical interference. Remove the unit. Refer to biomedical
technician or call 3M Patient
Warming technical support.