Section 4: Troubleshooting; Section 5: General Maintenance And Storage; Cleaning Instructions; To Clean The Exterior Of The Warming Unit - 3M Ranger 245 Bedienungsanleitung

Section 4: Troubleshooting

Condition
Nothing illuminates on the warming unit panel.
Alert indicator illuminates and alert sounds,
alpha-numeric display alternately flashes a
temperature of 43°C or higher and the word
"HI."
Alert sounds, alphanumeric display and alert
indicator light go dark.
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 (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).
Alert sounds but unit has been turned off.
Cannot remove cassette from unit.
Alert indicator light illuminates and alert
sounds, alphanumeric display alternately
flashes a temperature of 33°C or below and
the word "LO."
Alphanumeric display reads "Er 4" or "Open."
Alphanumeric display reads "Er 5" or "Open."

Section 5: General Maintenance and Storage

Cleaning Instructions

To clean the exterior of the warming unit:

1. Disconnect the warming unit from the power source before cleaning.
2. Cleaning should be performed in accordance with hospital practices for cleaning OR equipment. After every use; wipe the warming unit and any
other surfaces that may have been touched. Use a damp, soft cloth and a hospital approved mild detergent, germicidal disposable wipes, disinfecting
towelettes, or antimicrobial spray. The following active ingredients are acceptable for use in cleaning the warming unit:
• Oxidizers (e.g. 10% Bleach)
• Quaternary Ammonium Compounds (e.g. 3M
• Phenolics (e.g. 3M™ Phenolic Disinfectant Cleaner)
• Alcohols (e.g. 70% Isopropyl Alcohol)
3. Let air dry.
CAUTION
To reduce the risks associated with cross-contamination:
• The cleaning tool provides only superficial cleaning, it does not disinfect or sterilize the interior of the unit.
Cause
Unit is not turned on, plugged in, or power cord is
not plugged into an appropriate outlet.
Unit failure.
Temporary over-temperature condition because:
An extreme change in flow rates occurred
(e.g., from 500 mL/min to stop flow).
Unit was turned on and reached set point
temperature before cassette was inserted.
Fluids were prewarmed to above 42°C before
being run through the warming unit.
Primary controller failure. Unit will no longer
operate.
Test screw on bottom of unit is loose or missing.
Independent backup safety system has been
activated.
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.
Under temperature condition caused by very
high flow using very cold fluid, or defective
heater/relay.
Open wire on temperature sensor.
Electrical interference.
Quat Disinfectant Cleaner)
TM
5
Solution
Turn unit on. Make sure the power cord is plugged into the
power entry module of the warming unit. Make sure the
warming unit is plugged into a properly grounded outlet.
Check panel fuses.
Call 3M.
Open flow to reduce temperature. Alerts will stop when
the display reads 41°C. The unit is ready to use.
Alerts will stop when the display reads 41°C. The unit is
ready to use.
Turn off unit and unplug it. Discontinue infusion of fluids.
Do not warm fluids before infusing them through the
Ranger warming unit.
Power to heating plates will shut off if temperature
rises to 44°C (warming unit Rev N and newer) or 46°C
(warming units Rev A to M). Turn unit off and unplug it.
Discontinue use of unit. Discard disposable set. Alert will
continue to sound if you do not unplug unit. Call 3M.
Make sure test screw is completely tightened. If it is
missing, turn unit off and unplug it. Call 3M.
Unplug unit. Call 3M.
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.
Alert should stop when temperature rises above 33°C. If
alert continues, turn unit off, unplug unit and discontinue
use. Call 3M.
Do not use unit. Call 3M.
Remove the unit. Refer to biomedical technician or call 3M