English
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 #202524A
Check 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 after 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 after 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 off and unplug it. Call 3M
Patient Warming technical support.
CONDITION
CAUSE
SOLUTION
Alert sounds but unit has been turned
off.
• 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 off and unplug it. Call 3M
Patient Warming technical support.
CONDITION
CAUSE
SOLUTION
Cannot remove cassette from unit.
• Cassette is too full, fluids
are still being infused, or
clamp is open proximal to
the cassette.
• Warming unit is below
patient level, creating
excessive back pressure.
• Make sure fluid is drained from
cassette before sliding out the
cassette, that fluids 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 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.
Alert should stop when temperature
rises above 33°C. If alert continues,
turn off 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.
