Arizant Healthcare Ranger 245 User manual

SERVICEManual
Blood/FluiBlood/Fluid Wd Warming Systemarming SystemBlood/Fluid Warming System
Ranger
Blood/Fluid Warming System
Initial Equipment Check
• Make sure the Ranger unit’s
power cord is plugged into the unit.
• When checking for grounding, clamp to the
screw threads on the unit’s IV pole clamp or the
equipotential stud on the rear of unit.
Clamp should be tightened securely.
• Sometime during shipping, this unit may
have been exposed to extreme temperatures.
The unit may need a period of 20 minutes or
more to return to normal operating temperature.
Store the Ranger unit at room temperature,
allowing it to equilibrate, before using
or testing the unit.
*
Check the Ranger system website to ensure you have the most recent version of this document. www.rangerfluidwarming.com reorder #200750C

Table of Contents
Technical Service and Order Placement
Introduction
Indications for Use
Warnings and Precautions
Before Servicing Equipment
Servicing Instructions
Cleaning the Ranger Warming Unit
Testing the Operating Temperature
Testing the Alarms
Testing the Over-Temperature Alarm
Testing the Under-Temperature Alarm
Replacing the Power Fuse
Troubleshooting
Specifications
Returning Warming Units for Service
Definition of Symbols
Ranger Blood/Fluid Warming System
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Technical Service and Order Placement
Technical service
TEL: [phone]
1-800-733-7775
Order placement
TEL: [phone]
1-800-733-7775
FAX: [phone]
1-800-775-0002
In-warranty repair and exchange
Replacement parts to correct a problem are delivered at no charge. To return a device to
Arizant Healthcare Inc. for service, first obtain a Return Authorization (RA) number from a
customer service representative. Please use the (RA) number on all correspondence when
returning a device for service. A shipping carton will be delivered to you at no charge, if
needed. We will service and ship your device within five (5) working days of our receipt.
Call your local supplier or sales representative to inquire about loaner devices while your
device is being serviced.
When you call for technical support
Remember, we will need to know the serial number of your unit when you call us. The serial
number label is located on the bottom of the warming unit.
Ranger Blood/Fluid Warming System
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Introduction
The Ranger blood/fluid warming system includes a warming unit that uses dry heat transfer
method, and disposable fluid warming and irrigation sets. The Ranger warming unit is
designed to warm blood, blood products, and liquids and deliver these at flow rates from
KVO to 500 mL/min. At these flow rates, the device maintains fluid output temperatures
ranging from 33°C to 41°C. It takes less than 2 minutes to warm up to the 41°C set point
temperature.
Disposable sets include IV blood/fluid sets for standard flow and high flow applications, and
an irrigation set with patient line for flow rates up to 30L/hr. Disposable sets are sterile (fluid
pathway unless otherwise indicated), latex-free, single-use only (unless otherwise indicated, ie:
24601, 24602).
The Ranger warming unit is designed to be mounted to an IV pole. A handle located on the
top of the unit makes transport easy. When mounted to the IV pole, the unit fits easily above a
Bair Hugger* warming unit.
Indications for use
The Ranger blood/fluid warming system is intended to warm blood, blood products and liquids.
Warnings and precautions
DANGER
Explosion hazard. Do not use in the presence of flammable anesthetics.
WARNING
•Electrical shock hazard. Do not open the warming unit case.
•Do not substitute other devices for the Ranger warming unit or Ranger disposable sets.
Thermal or electrical injury or device damage may occur.
•Never infuse fluids if air bubbles are present in the fluid line, as air embolism may result.
•Do not continue use of the unit if the over-temperature alarm continues to sound and the
temperature does not return to the set point temperature. Immediately stop fluid flow and
discard the disposable set. Have the warming unit tested by a biomedical technician or call
Arizant Healthcare* Customer Service.
CAUTION
•Do not immerse the blood/fluid warming unit. Wipe with a clean, slightly damp cloth.
•To prevent tipping, clamp the Ranger warming unit to an IV pole with a
minimum 14" (35.6 cm) radius wheelbase and at a height no higher than 44" (112 cm).
Failure to do so may result in damage to the product or catheter site trauma.
Before servicing equipment
All repair, calibration, and servicing of this equipment must be performed by Arizant
Healthcare Inc. or an authorized service technician. Arizant Healthcare Inc. assumes no
responsibility for the reliability, performance, or safety of the equipment if:
•Modifications or repairs are performed by unauthorized personnel.
•The equipment is used in a manner other than that described in the operator’s manual.
•The equipment is installed in an environment that does not meet the appropriate
electrical and grounding requirements.
Ranger Blood/Fluid Warming System
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Servicing Instructions
Cleaning the Ranger warming unit
Clean the Ranger unit on an as-needed basis.
CAUTION
• Do not immerse the warming unit in cleaning or sterilizing solutions. The unit is not liquid-
proof.
• Do not clean the warming unit with solvents. Damage to the case, label, and internal
components may result.
TO CLEAN THE EXTERIOR OF THE WARMING UNIT:
1. Disconnect the Ranger warming unit from the power source.
2. Wipe the outside of the unit with warm, soapy water, nonabrasive cleaning solutions, dilute
bleach, or cold sterilants. Do not use abrasive materials.
3. Wipe with a dry, soft cloth.
TO CLEAN THE HEATING PLATES:
The Ranger cleaning tool is intended to clean both heating plates of the warming unit. It is not
necessary to disassemble the warming unit to use the tool.
CAUTION
•Do not insert metallic instruments in the warming unit, as damage to the heating plates
may occur.
•Do not use abrasive material or solutions to clean the heater plates.
•Do not allow spills to dry inside the unit, as this may make it more difficult to clean the unit.
•The cleaning tool provides only superficial cleaning—it does not disinfect or sterilize the
interior of the unit.
METHOD
1. Unplug the warming unit.
2. Unfold the cleaning tool. Wet the foam pads with a nonabrasive solution, such as Alconox*
brand detergent.
3. Insert the tool from the back of the unit and pull the tool all the way out from the front.
4. Rinse the tool with water and repeat 3 times. Discard the tool according to
institutional protocol.
5. Wipe off the unit to remove excess fluid.
TO CLEAN RESISTANT, DRIED-ON FLUIDS:
1. Spray a nonabrasive solution inside the slot of the warming unit and let sit for 15-20 minutes.
2. Clean the unit by using the cleaning tool.
NOTE: You may use a nonmetal instrument, such as a cotton swab, to clean the upper channels.
If you are unable to adequately clean the unit, call Arizant Healthcare Customer Service.
*Alconox is a registered trademark of Alconox, Inc.
Ranger Blood/Fluid Warming System
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Testing the operating temperature
Testing of the operating temperature should be done at least every 6 months or according to
institutional protocol.
CAUTION
Temperature adjustments cannot be made to the Ranger warming unit. If the tested
temperature is out of specification, please call Arizant Healthcare Customer Service.
TOOLS AND EQUIPMENT
•Thermocouple: 0.005" leads or smaller
•Calibrated thermocouple temperature monitor
•Aluminum tape
•IV bag containing room temperature saline
METHOD
1. Tape a thermocouple to the exterior of one side of the Ranger warming cassette. See figure
above for correct position of the thermocouple.
2. Slide the warming cassette into the slot of the Ranger warming unit.
3. Using room temperature fluids, prime the cassette just until fluid flows through the patient
end. Clamp the white clamp to stop the flow.
NOTE: To achieve correct results, fluids must be administered into the inlet tube, NOT into
the outlet tube.
4. Turn the Ranger unit ON and allow it to warm up for 5 minutes. The Ranger unit display
should read 41˚±1˚C. Note the temperature on the thermocouple temperature monitor. If the
temperature reading is not 41˚±1˚C call Arizant Healthcare Customer Service.
NOTE: Most hand-held temperature meters have a ±1°C tolerance.
Ranger Blood/Fluid Warming System
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Inlet tube
0.75"1.80"Thermocouple

Testing the alarms
Testing of the alarms should be done at least every 6 months or according to institutional protocol.
TESTING THE OVER-TEMPERATURE ALARM (43˚ AND 46˚C ALARM POINTS)
TOOLS AND EQUIPMENT
• Phillips screwdriver
• IV solution at room temperature
• 1 Ranger standard flow warming cassette instrumented with a thermocouple
(see page 5 for instructions)
• Calibrated thermocouple temperature monitor
Read before testing: The over-temperature alarm test causes the Ranger unit to go into an
over-temperature test mode by manually overriding the primary control system and engaging
the heaters. The Ranger system is very responsive to heater input; therefore, the test proce-
dures are technique sensitive. Read instructions thoroughly before beginning these tests.
The first alarm point at 43˚C alerts you to the rise in temperature (see step 5). At the 46˚C
secondary alarm set point, the unit cuts power to the heaters (see steps 6-8). Please note that
due to tolerance stack-ups between the various systems and the heater's rapid response, you
may see secondary alarm set point readings from 45-49˚C.
TEST SET-UP
1. Turn on the Ranger warming unit and allow it to stabilize at normal operating temperature
(40-41˚C) for 30 minutes.
2. Insert the instrumented warming cassette into the Ranger unit.
3. Prime the warming cassette with room temperature IV solution. When primed, clamp the
outlet tube to stop flow.
4. Connect the thermocouple to the calibrated thermocouple temperature monitor to verify
that the warming unit’s temperature has stabilized at normal operating temperature.
5. Slowly loosen the over-temperature screw on the bottom of the Ranger unit (see illustration
below). When the heater reaches 43˚C, an audible alarm sounds, the alarm light
illuminates, and the display alternately flashes “HI” and the plate temperature.
Important note: Steps 6 through 8 are highly dependent upon each other; be sure to read all
steps before proceeding with the alarm test. Newer Ranger units or units fitted with a new
alarm board will test differently than older units. Steps 6a and 6b will help you determine the
unit type you are working on. It is important to note that neither the alarm function nor the
efficacy of the Ranger system has changed, only the mechanism for testing.
Ranger Blood/Fluid Warming System
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Screw must be
fully seated for
unit to function
properly.
Over-temperature screw

6. Remove the over-temperature screw on the bottom of the Ranger unit.
6a). If the temperature display climbs slowly to the alarm point (44-46˚C) and
stabilizes, replace the screw, turn off the Ranger unit, and unplug the unit to
silence the alarm. The unit is ready to return to service after it cools to normal
operating temperature (approximately 20-30 minutes). Note: At the alarm point,
the audible alarm sounds, the alarm light illuminates, and the alphanumeric dis-
play alternately reads “HI” and the plate temperature.
6b). If the temperature display climbs rapidly to 49˚C or higher, replace the screw,
turn off the Ranger unit, and unplug the unit to silence the alarm. Allow the unit
to cool to normal operating temperature (approximately 20-30 minutes), then
continue testing by following steps 7 and 8.
7. Slowly loosen the over-temperature screw on the bottom of the Ranger unit. Listen for a
slight click as the microswitch opens. Stop turning the over-temperature screw as soon as
you hear the click. The unit is now in over-temperature test mode.
8. Watch the alphanumeric display. When the unit reaches 44˚C, quickly tighten the over-
temperature screw. Listen for the power relay to click between 45-49˚C (you can feel the
click when holding the lower left corner of the unit as you face the front display). This
signals that power to the heaters has been shut off. The over-temperature alarm will sound,
the alarm light will illuminate, and the alphanumeric display will alternately read “HI” and
the plate temperature. Watch the thermocouple temperature monitor to determine when the
unit temperature has stabilized (about 1 minute). The temperature reading on the monitor
should peak between 45-49˚C.
• If you detected the power relay click, proceed to step 9.
• If you did not detect the power relay click, follow these instructions: When the tempera-
ture stabilizes (reaches a peak and begins to fall), slowly loosen the over-temperature
screw. Wait 1-2 seconds before quickly tightening the over-temperature screw. Repeat
until the relay click is confirmed.
Note: If the temperature displayed on the thermocouple monitor exceeds 49˚C during the
test, tighten the over-temperature test screw on the bottom of the Ranger unit, unplug
the unit, and run cold fluid through the warming cassette. This returns the unit to normal
operating temperature. When the temperature stabilizes below 41˚C, repeat the test
starting at step 7. If the second test still exceeds 49˚C, call Arizant Healthcare Technical
Support at 800-733-7775.
9. Securely tighten the over-temperature screw, turn off the Ranger unit, and unplug
the unit to silence the alarm. The unit is ready to return to service after it cools to normal
operating temperature (approximately 20-30 minutes).
TESTING THE UNDER-TEMPERATURE ALARM
You may perform this test procedure directly following the testing for the over-temperature
alarm. Only the visual alarm can be verified; the audible alarm will continue to sound
throughout the rest of the procedure.
TOOLS AND EQUIPMENT
•Thermocouple: 0.005" leads or smaller
•Calibrated thermocouple temperature monitor
•IV bag containing saline at <33˚C
Ranger Blood/Fluid Warming System
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METHOD
1. Verify that the 46˚C alarm is functioning properly. The over-temperature test turns off
the heaters. DO NOT UNPLUG THE UNIT AT THIS POINT. Do not reseat the over-
temperature test screw.
2. Flush the fluid warming cassette with cold water until the display temperature falls to or
below 33˚C. This drop in temperature will trigger the under-temperature alarm. The
alphanumeric display will alternately read "LO" and the measured temperature. You may
notice a slight stutter in the alarm as the temperature crosses the 43˚C alarm point and
again as it crosses the 33˚C alarm point.
3. To silence the alarm, unplug the unit for 5 minutes. Securely tighten the over-temperature
test screw before returning the unit to service.
Replacing the power fuse
The power fuses are located in the power entry module.
TOOLS AND EQUIPMENT
•Small slotted screwdriver
METHOD
1. Disconnect the warming unit from the power source.
2. Remove the power cord.
3. Locate the fuse carrier in the power entry module.
4. Use the small screwdriver to remove the fuse carrier from the power entry module.
5. Remove the blown fuse from the fuse carrier and replace with a new new fuse (as marked).
6. Place the fuse carrier back into the power entry module.
7. Reattach the power cord.
8. Reconnect the warming unit to the power source.
9. Turn the unit on to verify normal operation.
10. Record the maintenance action taken.
Ranger Blood/Fluid Warming System
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Ranger Blood/Fluid Warming System
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Condition
Nothing illuminates on the
warming unit display panel.
Condition
Alarm indicator light illumi-
nates and alarm sounds,
alphanumeric display alter-
nately flashes a temperature
of 43˚C or higher and the
word “HI.”
Condition
Alarm sounds, alphanumeric
display and alarm light go
dark.
Cause
•Unit is not turned on, plugged
in, or power cord is not plugged
into an appropriate outlet.
•Unit failure.
Cause
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 warming cassette
was inserted.
•Fluids were prewarmed to
above 42°C before being run
through the warming unit.
Cause
Primary controller failure.
Unit will no longer operate.
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.
•Call Arizant Healthcare
Customer Service.
Solution
•Open flow to reduce tem-
perature. Alarms will stop
when the display reads 41°C.
The unit is ready to use.
•Alarms will stop when the
display reads 41°C. The unit
is ready to use.
•Turn off unit. Discontinue
infusion of fluids. Do not
warm fluids before infusing
them through the Ranger unit.
Solution
Power to heating plates will
shut off if temperature rises
to 46˚C. Turn unit off and
unplug it. Discontinue use of
unit. Discard disposable set.
Alarm will continue to sound
if you do not unplug unit.
Call Arizant Healthcare
Customer Service.
Troubleshooting

Ranger Blood/Fluid Warming System
10
Condition
•Unit alarms soon after plug-
ging it in (unit does not have
to be turned on for this con-
dition to occur).
•Heater temperature rises to
46˚C and unit shuts down
soon after plugging it in (unit
does not have to be turned on
for this condition to occur).
Condition
Alarm sounds but unit has
been turned off.
Condition
Cannot remove warming
cassette from unit.
Condition
Alarm indicator light illumi-
nates and alarm sounds,
alphanumeric display alter-
nately flashes a temperature
of 33˚C or lower and the
word “LO.”
Condition
Alphanumeric display reads
"Er 4" or “Open.”
Condition
Alphanumeric display reads
"Er 5" or “Open.”
Cause
Test screw on bottom of unit
is loose or missing.
Cause
Independent backup safety
system has been activated.
Cause
•Warming cassette is too full,
fluids are still being infused,
or clamp is open proximal to
the warming cassette.
•Warming unit is below
patient level, creating
excessive back pressure.
Cause
Under-temperature condition,
or defective heater/relay.
Cause
Open wire on temperature sensor.
Cause
Electrical interference.
Solution
Make sure test screw is com-
pletely tightened. If it is missing,
turn unit off and unplug it.
Call Arizant Healthcare
Customer Service.
Solution
Unplug unit. Call Arizant
Healthcare Customer Service.
Solution
•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.
•Raise unit above patient level.
Solution
Alarm should stop when
temperature rises above 33°C.
If alarm continues, unplug unit
and discontinue use. Call Arizant
Healthcare Customer Service.
Solution
Do not use unit. Call Arizant
Healthcare Customer Service.
Solution
Remove the unit. Refer to
biomedical technician or
call Arizant Healthcare
Customer Service.

Specifications
Physical characteristics
WARMING UNIT
4.5 in. (11 cm) high x 7.5 in. (19 cm) wide x 10 in. (25 cm) long;
wt.: 7 lb. 7 oz. (3.4 kg)
CLASSIFICATION
Classified under IEC 601-1 Guidelines (and other national versions of the Guidelines) as
Class I, Type B, Ordinary Equipment. Not suitable for use in the presence of flammable
anesthetic mixtures with air or with oxygen or nitrous oxide. Classified by Underwriters
Laboratories Inc. with respect to electric shock, fire, and mechanical hazards only, in accordance
with UL 60601-1 and in accordance with Canadian/CSA C22.2 No. 601.1
Electrical characteristics
INPUT VOLTAGE
100-120 or 220-240 VAC
OPERATING FREQUENCY
100-120 VAC, 50/60 Hz
220-240 VAC, 50/60 Hz
MAXIMUM HEATING POWER
900 W
FUSE RATING
100-120 V unit: 250V, T10A
220-240 V unit: 250V T6.3A
Temperature characteristics
SET POINT TEMPERATURE
41°C
OVER-TEMPERATURE ALARM
43°C
UNDER-TEMPERATURE ALARM
33°C
OVER-TEMPERATURE CUTOFF
46°C
LEAKAGE CURRENT
Meets leakage current requirements in accordance with UL 60601-1 and IEC 601-1.
Environmental conditions
OPERATING TEMPERATURE RANGE
15° to 40°C (59° to 104°F)
STORAGE TEMPERATURE RANGE
-20° to 45°C (-4° to 113°F)
OPERATING HUMIDITY
10 to 85% RH, noncondensing
ATMOSPHERIC PRESSURE RANGE
50 kPa to 106 kPa
Ranger Blood/Fluid Warming System
11

Ranger Blood/Fluid Warming System
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Returning Warming Units for Service
Call Arizant Healthcare Customer Service to get a Return Authorization (RA) number and a
service carton. Arizant Healthcare Customer Service: 1-800-733-7775.
Definition of Symbols
ON
OFF
Fuse
Attention-read accompanying documents
Nonexplosion-Proof
Type B Applied Part
Voltage, Alternating Current (AC)

Blood/Flui
Blood/Flui
d W
d W
arming System
arming System
Blood/Fluid Warming System
SERVICEManual
Arizant Healthcare Inc.
10393 West 70th Street, Eden Prairie, MN 55344 USA
TEL [phone] •800-733-7775
FAX [phone] •800-775-0002
www.arizanthealthcare.com
Authorized Representative in the European Community (as defined in
Article 14 of the Medical Device Directive: 93/42/EEC): Actamed Limited,
Calder Island Way, Wakefield, WF2 7AW, United Kingdom
Tel [phone] • Fax [phone]
*Ranger, Bair Hugger, Arizant, Arizant Healthcare, bright ideas that work,
and the Bair Hugger and Arizant logos are trademarks of Arizant Healthcare
Inc., registered or pending in the U.S. Patent & Trademark Office and in
other countries.
©2003-2004 Arizant Healthcare Inc. All rights reserved.
200750C 12/04
U.S. patent 6,464,666. Other patents pending.
0470