3M Blood Fluid Warming System Model 245 and 247 Service Manual

1 Ranger™ Blood/Fluid Warming System Model 245 ‑ For I.V. Use Ranger™ Irrigation Fluid Warming System Model 247 ‑ Not for I.V. Use SERVICE MANUAL

Technical Support and Order Placement USA TEL: 1-800-733-7775

OUTSIDE OF THE USA Contact your local 3M representative.

In‑warranty Repair and Exchange To return a device to 3M 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. Call your local supplier or sales representative to inquire about a loaner device while your device is being serviced.

When You Call for Technical Support

The Ranger irrigation disposable fluid warming set is sterile, latex-free, and is designed to be used with the Ranger irrigation fluid warming unit. Do not use other warming sets with the Model 247, including those designed for the Model 245 blood/fluid warming unit.

Indications for Use BLOOD/FLUID WARMING SYSTEM The Ranger blood/fluid warming system is intended to warm blood, blood products, and liquids.

IRRIGATION FLUID WARMING SYSTEM The Ranger irrigation fluid warming system is intended to warm irrigation fluids.

Definition of Symbols ON

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.

Initial Equipment Check •

Make sure the 3M™ Ranger™ warming unit’s power cord is plugged into the unit.

•

When checking for grounding, clamp to the screw threads on the unit’s I.V. pole clamp or the equipotential stud on the rear of the 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 warming unit at room temperature, allowing it to equilibrate, before using or testing the unit.

Introduction The Ranger warming system includes a warming unit and a disposable warming set. The Ranger warming unit is designed to be mounted to an I.V. pole. A handle located on the top of the unit makes transport easy. When mounted to the I.V. pole, the unit fits easily above the 3M™ Bair Hugger™ 500 or 700 series warming unit. For additional information on Ranger warming sets visit us online at rangerfluidwarming.com.

Model 245 Blood/Fluid Warming System The Ranger blood/fluid warming system 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 (Note: This is for room temperature fluids only). It takes less than two minutes to warm up to the 41°C [±1°C] set point temperature. The alert points on the Model 245 are 43°C [±1°C] and 46°C [+3, -2°C]. Disposable warming sets are available for standard flow, high flow, and pediatric applications. Warming sets are sterile, latex-free, single-use-only items and are designed to be used with the reusable warming unit. Do not use other warming sets with the Model 245, including those designed for the Model 247 irrigation fluid warming system.

Model 247 Irrigation Fluid Warming System The Ranger irrigation fluid warming system is designed to warm irrigation fluids and deliver these at flow rates from 0 to 870 mL/min when the bag is hung 100 cm above the scope. At these flow rates, the device maintains fluid output temperatures ranging from 33°C to 41°C (Note: This is for room temperature fluids only). It takes less than two minutes to warm up to the 41°C [±1] set point temperature. The alert points on the Model 247 are 48°C [±2] and 50°C [±2].

OFF

Fuse

CAUTION

Type BF Applied Part

Voltage, Alternating Current (AC)

An equipotentiality plug (grounded) conductor other than a protective earth conductor or a neutral conductor, providing a direct connection between electrical equipment and the potential equalization busbar of the electrical installation. Please consult IEC 60601-1; 2005 for requirements.

This system is subject to European WEEE Directive 2002/96/EC. This product contains electrical and electronic components and must not be disposed of using standard refuse collection. Please consult local directives for disposal of electrical and electronic equipment.

Protective earth ground

Consult instructions for use

GB / 34-8719-2503-7

PDF Scaled at 75.0%

3

1 Ranger™ Blood/Fluid Warming System Model 245 ‑ For I.V. Use Ranger™ Irrigation Fluid Warming System Model 247 ‑ Not for I.V. Use SERVICE MANUAL

Technical Support and Order Placement USA TEL: 1-800-733-7775

OUTSIDE OF THE USA Contact your local 3M representative.

In‑warranty Repair and Exchange To return a device to 3M 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. Call your local supplier or sales representative to inquire about a loaner device while your device is being serviced.

When You Call for Technical Support

The Ranger irrigation disposable fluid warming set is sterile, latex-free, and is designed to be used with the Ranger irrigation fluid warming unit. Do not use other warming sets with the Model 247, including those designed for the Model 245 blood/fluid warming unit.

Indications for Use BLOOD/FLUID WARMING SYSTEM The Ranger blood/fluid warming system is intended to warm blood, blood products, and liquids.

IRRIGATION FLUID WARMING SYSTEM The Ranger irrigation fluid warming system is intended to warm irrigation fluids.

Definition of Symbols ON

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.

Initial Equipment Check •

Make sure the 3M™ Ranger™ warming unit’s power cord is plugged into the unit.

•

When checking for grounding, clamp to the screw threads on the unit’s I.V. pole clamp or the equipotential stud on the rear of the 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 warming unit at room temperature, allowing it to equilibrate, before using or testing the unit.

Introduction The Ranger warming system includes a warming unit and a disposable warming set. The Ranger warming unit is designed to be mounted to an I.V. pole. A handle located on the top of the unit makes transport easy. When mounted to the I.V. pole, the unit fits easily above the 3M™ Bair Hugger™ 500 or 700 series warming unit. For additional information on Ranger warming sets visit us online at rangerfluidwarming.com.

Model 245 Blood/Fluid Warming System The Ranger blood/fluid warming system 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 (Note: This is for room temperature fluids only). It takes less than two minutes to warm up to the 41°C [±1°C] set point temperature. The alert points on the Model 245 are 43°C [±1°C] and 46°C [+3, -2°C]. Disposable warming sets are available for standard flow, high flow, and pediatric applications. Warming sets are sterile, latex-free, single-use-only items and are designed to be used with the reusable warming unit. Do not use other warming sets with the Model 245, including those designed for the Model 247 irrigation fluid warming system.

Model 247 Irrigation Fluid Warming System The Ranger irrigation fluid warming system is designed to warm irrigation fluids and deliver these at flow rates from 0 to 870 mL/min when the bag is hung 100 cm above the scope. At these flow rates, the device maintains fluid output temperatures ranging from 33°C to 41°C (Note: This is for room temperature fluids only). It takes less than two minutes to warm up to the 41°C [±1] set point temperature. The alert points on the Model 247 are 48°C [±2] and 50°C [±2].

OFF

Fuse

CAUTION

Type BF Applied Part

Voltage, Alternating Current (AC)

An equipotentiality plug (grounded) conductor other than a protective earth conductor or a neutral conductor, providing a direct connection between electrical equipment and the potential equalization busbar of the electrical installation. Please consult IEC 60601-1; 2005 for requirements.

This system is subject to European WEEE Directive 2002/96/EC. This product contains electrical and electronic components and must not be disposed of using standard refuse collection. Please consult local directives for disposal of electrical and electronic equipment.

Protective earth ground

Consult instructions for use

GB / 34-8719-2503-7

PDF Scaled at 75.0%

3

Warnings and Cautions

Follow instructions for use

4.

! WARNINGS:

1. Recycle to avoid environmental contamination. This product contains recyclable parts. For information on recycling - please contact 3M technical support for advice.

To reduce the risks associated with hazardous voltage and fire and thermal energy hazards: •

Do not substitute other devices (i.e. Model 245) for the Ranger irrigation fluid warming unit or Ranger irrigation warming sets.

•

Do not substitute other devices (i.e. Model 247) for the Ranger blood/fluid warming unit or Ranger blood/fluid warming sets.

•

Do not continue use of the unit if the over-temperature alert continues to sound and the temperature does not return to the set point temperature. Have the warming unit tested by a biomedical technician or call 3M technical support.

Date of manufacture 2. Manufacturer

Do not modify this device.

•

Connect power cord to receptacles marked “Hospital Only,” “Hospital Grade,” or a reliably grounded outlet.

•

Sterile, ethylene oxide

Store at room temperature

Do not allow the power cord to get wet.

•

Do not use the warming unit when it appears the Ranger warming unit, power cord, or warming set is damaged. Use only 3M specified replacement parts.

Container quantity

Keep dry

Temperature limits

Keep power cord visible and accessible at all times. The plug on the power cord serves as the disconnect device. The wall socket outlet shall be as close as practical and shall be easily accessible.

•

Do not use with a multiple socket outlet or extension cord.

•

Do not use this equipment adjacent to, stacked with or in combination with other equipment without verifying that the total leakage current from the combined equipment does not exceed the safety limits for Type BF equipment and to assure normal operation in the configuration in which it will be used.

Do not reuse

3.

To reduce the risks associated with air embolism and incorrect routing of fluids: •

Never infuse fluids if air bubbles are present in fluid line.

•

Ensure all luer connections are tightened.

4.

Do not mount the Ranger blood/fluid warming system higher than patient level during infusion, as air embolism may result.

5.

To reduce the risks associated with potential blood loss, do not use in combination with an extracorporeal circuit.

! CAUTION: Explanation of Signal Word Consequences

1.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

To reduce the risks associated with cross-contamination: •

! WARNING:

2.

! CAUTION:

•

3.

NOTICE:

6.

The 3M Ranger blood/fluid warming system has been tested to be resistant to both electromagnetic fields (EMI) and electrostatic discharge (ESD). To reduce the risk associated with EMI due to portable and mobile RF communications equipment: •

•

Install and put into service the 3M Ranger blood/fluid warming system according to the EMC information provided In the Guidance and Manufacturer’s Declaration. Should interference occur move away from the portable or mobile RF communications equipment.

NOTICE: 1.

Federal law (USA) restricts this device to sale by or on the order of a licensed healthcare professional.

2.

To avoid device damage: •

Do not clean the warming unit with solvents. Damage to the case, label, and internal components may result.

3.

•

Do not immerse the warming unit in cleaning or sterilizing solutions. The unit is not liquid proof.

•

Do not insert metallic instruments in the warming unit.

•

Do not use abrasive materials 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 Ranger blood/fluid warming unit and irrigation fluid warming unit meet medical electronic interference requirements. If radio frequency interference with other equipment should occur, connect the unit to a different power source.

Before Servicing Equipment All repair, calibration, and servicing of this equipment must be performed by 3M or an authorized service technician. 3M 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.

•

Do not modify this equipment without authorization of the manufacturer.

! WARNING: •

To reduce the risk associated with exposure to biohazards always perform the Cleaning the Ranger warming unit procedure on page 10 prior to beginning service procedures, returning the warming unit for service, and prior to disposal.

Product Description The Ranger blood/fluid, and irrigation fluid warming systems consist of a warming unit and a sterile disposable fluid warming set.

SLOT FOR WARMING CASSETTE

ALERT INDICATOR LIGHT

MODEL 247 I.V. POLE CLAMP

ALERT INDICATOR LIGHT

MODEL 245

SLOT FOR WARMING CASSETTE I.V. POLE CLAMP

ALPHANUMERIC DISPLAY

The cleaning tool provides only superficial cleaning, it does not disinfect or sterilize the interior of the unit.

POWER SWITCH

BUBBLE TRAP HOLDER ALPHANUMERIC DISPLAY

POWER SWITCH

FIGURE 1: RANGER MODELS 247 AND 245 FLUID WARMING UNITS

To reduce the risks associated with impact and facility medical device damage:

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

Indicates a situation which, if not avoided, could result in property damage only.

Follow the AABB Guidelines for the use of blood warming device which caution against warming when administering platelets, cryoprecipitates, or granulocyte suspensions.

Use only the power cord specified for the product and certified for the country of use.

•

•

Not made with natural rubber latex

5.

To reduce the risks associated with hazardous voltage and fire: •

Do not use the Ranger blood/fluid warming system Model 245 for direct cardiac application. When using the Model 245 with a central venous catheter (CVC), ensure that the catheter tip does not have direct contact with the heart and ensure that all electrical devices connected to or near the patient have an appropriate leakage current rating for the application. If a CVC tip is found to be in direct contact with a patient’s heart, the Model 245 should be immediately disconnected from the CVC until the CVC is safely repositioned. Failure to follow these precautions may cause cardiac disturbance and/or patient injury.

Clamp the Ranger warming unit to an I.V. pole with a minimum 14” (35.6 cm) radius wheelbase and at a height no higher than 44” (112 cm).

To reduce the risks associated with environmental contamination: •

Follow applicable regulations when disposing of this device or any of its electronic components.

CONTRAINDICATIONS: None

4

PDF Scaled at 75.0%

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

GB / 34-8719-2503-7

5

Warnings and Cautions

Follow instructions for use

4.

! WARNINGS:

1. Recycle to avoid environmental contamination. This product contains recyclable parts. For information on recycling - please contact 3M technical support for advice.

To reduce the risks associated with hazardous voltage and fire and thermal energy hazards: •

Do not substitute other devices (i.e. Model 245) for the Ranger irrigation fluid warming unit or Ranger irrigation warming sets.

•

Do not substitute other devices (i.e. Model 247) for the Ranger blood/fluid warming unit or Ranger blood/fluid warming sets.

•

Do not continue use of the unit if the over-temperature alert continues to sound and the temperature does not return to the set point temperature. Have the warming unit tested by a biomedical technician or call 3M technical support.

Date of manufacture 2. Manufacturer

Do not modify this device.

•

Connect power cord to receptacles marked “Hospital Only,” “Hospital Grade,” or a reliably grounded outlet.

•

Sterile, ethylene oxide

Store at room temperature

Do not allow the power cord to get wet.

•

Do not use the warming unit when it appears the Ranger warming unit, power cord, or warming set is damaged. Use only 3M specified replacement parts.

Container quantity

Keep dry

Temperature limits

Keep power cord visible and accessible at all times. The plug on the power cord serves as the disconnect device. The wall socket outlet shall be as close as practical and shall be easily accessible.

•

Do not use with a multiple socket outlet or extension cord.

•

Do not use this equipment adjacent to, stacked with or in combination with other equipment without verifying that the total leakage current from the combined equipment does not exceed the safety limits for Type BF equipment and to assure normal operation in the configuration in which it will be used.

Do not reuse

3.

To reduce the risks associated with air embolism and incorrect routing of fluids: •

Never infuse fluids if air bubbles are present in fluid line.

•

Ensure all luer connections are tightened.

4.

Do not mount the Ranger blood/fluid warming system higher than patient level during infusion, as air embolism may result.

5.

To reduce the risks associated with potential blood loss, do not use in combination with an extracorporeal circuit.

! CAUTION: Explanation of Signal Word Consequences

1.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

To reduce the risks associated with cross-contamination: •

! WARNING:

2.

! CAUTION:

•

3.

NOTICE:

6.

The 3M Ranger blood/fluid warming system has been tested to be resistant to both electromagnetic fields (EMI) and electrostatic discharge (ESD). To reduce the risk associated with EMI due to portable and mobile RF communications equipment: •

•

Install and put into service the 3M Ranger blood/fluid warming system according to the EMC information provided In the Guidance and Manufacturer’s Declaration. Should interference occur move away from the portable or mobile RF communications equipment.

NOTICE: 1.

Federal law (USA) restricts this device to sale by or on the order of a licensed healthcare professional.

2.

To avoid device damage: •

Do not clean the warming unit with solvents. Damage to the case, label, and internal components may result.

3.

•

Do not immerse the warming unit in cleaning or sterilizing solutions. The unit is not liquid proof.

•

Do not insert metallic instruments in the warming unit.

•

Do not use abrasive materials 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 Ranger blood/fluid warming unit and irrigation fluid warming unit meet medical electronic interference requirements. If radio frequency interference with other equipment should occur, connect the unit to a different power source.

Before Servicing Equipment All repair, calibration, and servicing of this equipment must be performed by 3M or an authorized service technician. 3M 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.

•

Do not modify this equipment without authorization of the manufacturer.

! WARNING: •

To reduce the risk associated with exposure to biohazards always perform the Cleaning the Ranger warming unit procedure on page 10 prior to beginning service procedures, returning the warming unit for service, and prior to disposal.

Product Description The Ranger blood/fluid, and irrigation fluid warming systems consist of a warming unit and a sterile disposable fluid warming set.

SLOT FOR WARMING CASSETTE

ALERT INDICATOR LIGHT

MODEL 247 I.V. POLE CLAMP

ALERT INDICATOR LIGHT

MODEL 245

SLOT FOR WARMING CASSETTE I.V. POLE CLAMP

ALPHANUMERIC DISPLAY

The cleaning tool provides only superficial cleaning, it does not disinfect or sterilize the interior of the unit.

POWER SWITCH

BUBBLE TRAP HOLDER ALPHANUMERIC DISPLAY

POWER SWITCH

FIGURE 1: RANGER MODELS 247 AND 245 FLUID WARMING UNITS

To reduce the risks associated with impact and facility medical device damage:

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

Indicates a situation which, if not avoided, could result in property damage only.

Follow the AABB Guidelines for the use of blood warming device which caution against warming when administering platelets, cryoprecipitates, or granulocyte suspensions.

Use only the power cord specified for the product and certified for the country of use.

•

•

Not made with natural rubber latex

5.

To reduce the risks associated with hazardous voltage and fire: •

Do not use the Ranger blood/fluid warming system Model 245 for direct cardiac application. When using the Model 245 with a central venous catheter (CVC), ensure that the catheter tip does not have direct contact with the heart and ensure that all electrical devices connected to or near the patient have an appropriate leakage current rating for the application. If a CVC tip is found to be in direct contact with a patient’s heart, the Model 245 should be immediately disconnected from the CVC until the CVC is safely repositioned. Failure to follow these precautions may cause cardiac disturbance and/or patient injury.

Clamp the Ranger warming unit to an I.V. pole with a minimum 14” (35.6 cm) radius wheelbase and at a height no higher than 44” (112 cm).

To reduce the risks associated with environmental contamination: •

Follow applicable regulations when disposing of this device or any of its electronic components.

CONTRAINDICATIONS: None

4

PDF Scaled at 75.0%

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

GB / 34-8719-2503-7

5

Ranger Warming Unit

Maintenance and Storage

METHOD

The warming unit is a compact, lightweight, liquid-resistant device with a clamp located on the side for attachment to an I.V. pole. A carrying handle on the top of the unit makes it easy to transport (see Figure 1).

CLEANING THE RANGER WARMING UNIT

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 (See Figure 3.).

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.

Located on the front panel you will find: •

Alphanumeric display that indicates the heater temperature during normal operation. In an over-temperature condition, the display alternately flashes a temperature of 43°C for the Model 245 (48°C for the Model 247) or higher and the word “HI.” An audible alert also sounds. In an under-temperature condition, the display alternately flashes a temperature of 33°C or lower and the word “LO.”

•

Clean the Ranger warming unit on an as-needed basis.

! CAUTION 1.

To reduce the risks associated with cross-contamination: •

Alert indicator light that comes on when either an over- or under-temperature condition occurs.

The cleaning tool provides only superficial cleaning, it does not disinfect or sterilize the interior of the unit.

NOTICE

Ranger Models 245 and 247

2.

18.

To avoid device damage: •

Do not immerse the warming unit in cleaning or sterilizing solutions. The unit is not liquid proof.

1.

•

Do not clean the warming unit with solvents. Damage to the case, label, and internal components may result.

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.

•

Do not insert metallic instruments in the warming unit.

•

Do not use abrasive materials 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.

1.

3.

17.

7.

5.

TO CLEAN THE EXTERIOR OF THE WARMING UNIT:

11.

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.

8. 6.

TO CLEAN RESISTANT, DRIED‑ON FLUIDS:

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 3M technical support.

STORAGE Store all components in a cool, dry place when not in use. Call 3M technical support at 800‑228‑3957 for service information. * Alconox is a trademark of Alconox, Inc.

Blood/Fluid Warming System Preventative Maintenance Checklist CAUTION

13.

TO CLEAN THE HEATING PLATES:

Temperature adjustments cannot be made to the Ranger warming unit. If the test shows the temperature is out of specification, please contact 3M technical support.

9.

The Ranger warming unit 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.

•

Thermocouple: 0.005” lead or smaller (part #90020)

•

Calibrated thermocouple temperature monitor

•

Aluminum tape

•

Ranger standard flow blood/fluid warming set

•

Phillips screwdriver

•

Saline/water

19.

4. 10.

20.

TOOLS AND EQUIPMENT

INLET TUBE

12.

14.

16. 21.

15. Insert cassette before priming. Drain 2mL or more from cassette to remove.

1. Upper Enclosure

8.

Thermistor Sensor

15.

Microswitch

2. Lower Enclosure

9.

Pole Clamp

16.

Alarm Board

3.

Upper Heater

10.

Pole Clamp Knob

17. Controller

4.

Lower Heater

11.

Bubble Trap Holder (Model 245)

18.

Handle

5.

Upper Heater Plate

12.

Power Entry Module

19.

Cable Clamp

6.

Lower Heater Plate

13.

Cord Retainer

20.

Ground Plane

14.

Solid State Relay

21.

Heat Sink

7. RTD Sensor

6

PDF Scaled at 75.0%

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

Blood/Fluid Warming System

2.

FIGURE 2: RANGER FLUID WARMING UNIT ASSEMBLY DIAGRAM

FIGURE 3: RANGER FLUID WARMING UNIT CLEANING ALUMINUM TAPE 0.75"

1.80"

THERMOCOUPLE

FIGURE 4: RANGER STANDARD FLOW BLOOD/FLUID WARMING CASSETTE

GB / 34-8719-2503-7

1.

Use aluminum tape to affix a thermocouple to the top surface of the Ranger blood/fluid warming cassette as shown in Figure 4.

2.

Slide the cassette into the slot of the Ranger warming unit.

7

Ranger Warming Unit

Maintenance and Storage

METHOD

The warming unit is a compact, lightweight, liquid-resistant device with a clamp located on the side for attachment to an I.V. pole. A carrying handle on the top of the unit makes it easy to transport (see Figure 1).

CLEANING THE RANGER WARMING UNIT

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 (See Figure 3.).

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.

Located on the front panel you will find: •

Alphanumeric display that indicates the heater temperature during normal operation. In an over-temperature condition, the display alternately flashes a temperature of 43°C for the Model 245 (48°C for the Model 247) or higher and the word “HI.” An audible alert also sounds. In an under-temperature condition, the display alternately flashes a temperature of 33°C or lower and the word “LO.”

•

Clean the Ranger warming unit on an as-needed basis.

! CAUTION 1.

To reduce the risks associated with cross-contamination: •

Alert indicator light that comes on when either an over- or under-temperature condition occurs.

The cleaning tool provides only superficial cleaning, it does not disinfect or sterilize the interior of the unit.

NOTICE

Ranger Models 245 and 247

2.

18.

To avoid device damage: •

Do not immerse the warming unit in cleaning or sterilizing solutions. The unit is not liquid proof.

1.

•

Do not clean the warming unit with solvents. Damage to the case, label, and internal components may result.

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.

•

Do not insert metallic instruments in the warming unit.

•

Do not use abrasive materials 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.

1.

3.

17.

7.

5.

TO CLEAN THE EXTERIOR OF THE WARMING UNIT:

11.

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.

8. 6.

TO CLEAN RESISTANT, DRIED‑ON FLUIDS:

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 3M technical support.

STORAGE Store all components in a cool, dry place when not in use. Call 3M technical support at 800‑228‑3957 for service information. * Alconox is a trademark of Alconox, Inc.

Blood/Fluid Warming System Preventative Maintenance Checklist CAUTION

13.

TO CLEAN THE HEATING PLATES:

Temperature adjustments cannot be made to the Ranger warming unit. If the test shows the temperature is out of specification, please contact 3M technical support.

9.

The Ranger warming unit 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.

•

Thermocouple: 0.005” lead or smaller (part #90020)

•

Calibrated thermocouple temperature monitor

•

Aluminum tape

•

Ranger standard flow blood/fluid warming set

•

Phillips screwdriver

•

Saline/water

19.

4. 10.

20.

TOOLS AND EQUIPMENT

INLET TUBE

12.

14.

16. 21.

15. Insert cassette before priming. Drain 2mL or more from cassette to remove.

1. Upper Enclosure

8.

Thermistor Sensor

15.

Microswitch

2. Lower Enclosure

9.

Pole Clamp

16.

Alarm Board

3.

Upper Heater

10.

Pole Clamp Knob

17. Controller

4.

Lower Heater

11.

Bubble Trap Holder (Model 245)

18.

Handle

5.

Upper Heater Plate

12.

Power Entry Module

19.

Cable Clamp

6.

Lower Heater Plate

13.

Cord Retainer

20.

Ground Plane

14.

Solid State Relay

21.

Heat Sink

7. RTD Sensor

6

PDF Scaled at 75.0%

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

Blood/Fluid Warming System

2.

FIGURE 2: RANGER FLUID WARMING UNIT ASSEMBLY DIAGRAM

FIGURE 3: RANGER FLUID WARMING UNIT CLEANING ALUMINUM TAPE 0.75"

1.80"

THERMOCOUPLE

FIGURE 4: RANGER STANDARD FLOW BLOOD/FLUID WARMING CASSETTE

GB / 34-8719-2503-7

1.

Use aluminum tape to affix a thermocouple to the top surface of the Ranger blood/fluid warming cassette as shown in Figure 4.

2.

Slide the cassette into the slot of the Ranger warming unit.

7

3.

Using room temperature saline/water, prime the cassette per instructions included with it.

NOTE: To achieve correct results, fluids must be administered into the inlet tube, NOT into the outlet tube. 4.

Close patient line with white clamp to stop flow (See Figure 5.).

5.

Turn the Ranger warming unit ON and allow it to warm up for 5 minutes.

6.

The Ranger warming unit display should read 41°C [±1°C]. Note the temperature on the thermocouple temperature monitor. If the temperature reading is not 41°C [±1°C], contact 3M technical support.

NOTE: Most handheld temperature meters have a ±1°C tolerance.

TESTING THE OVER‑TEMPERATURE ALERT POINTS (43°C [±1°C] AND 46°C [+3, ‑2°C]) The over-temperature alert test causes the Ranger warming unit to go into an over-temperature test mode by manually overriding the primary control system and engaging the heaters. The Ranger warming system is very responsive to heater input; therefore the test procedures are technique sensitive. Read instructions thoroughly before beginning these tests. The first alert point at 43°C [±1°C] notifies user to the rise in temperature (see step 7). At the 46°C [+3, -2°C] secondary alert set point, the unit cuts power to the heaters (see step 8). Please note that due to the heaters’ rapid response, you may see temperature readings drift within the range of 44-49°C.

Ranger Blood/Fluid Warming Unit, Model 245 Maintenance Log The operating temperature and alerts should be tested at least every 6 months or according to institutional protocol.

MAINTENANCE ACTION PERFORMED MODEL ____________ SN____________ Date ____________

Date ____________

CASSETTE OVER‑TEMPERATURE SCREW

BLUE CLAMP

FIGURE 6: RANGER WARMING UNIT OVER‑TEMPERATURE SCREW OUTLET TUBE

INLET TUBE FLUID SOURCE

7.

EXIT BUBBLE TRAP WHITE CLAMP

8.

ROLLER CLAMP

FIGURE 5: RANGER STANDARD FLOW BLOOD/FLUID WARMING SET

8

PDF Scaled at 75.0%

Loosen the over-temperature screw on the bottom of the Ranger warming unit (see Figure 6.). Listen for a slight click as the microswitch opens. Loosen 1/2 turn more. This unit is now in over-temperature test mode, and the temperature output of the unit should begin to rise. When the Ranger display reads 43°C, verify that an audible alert sounds, the alert light illuminates, and the display alternately flashes “HI” and the plate temperature. Listen for the power relay to click at 46°C [+3, -2°C] (you can feel the click when holding the lower left corner of the unit as you face the front display). The click signifies the secondary alert trip point and signals that power to the heaters has been shut off. The over-temperature alert sounds, the alarm light illuminates, and the alphanumeric display alternately reads “HI” and the plate temperature. Watch the thermocouple temperature monitor to determine the unit’s peak temperature output (less than 1 minute). The temperature reading on the monitor should peak at 46°C [+3, -2°C].

Date ____________

Date ____________

Date ____________

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 warming unit, unplug it, and run cold fluids through the cassette. This returns the unit to normal operating temperature. Contact 3M technical support. 9.

The secondary alert is designed to latch. Verify this feature by momentarily turning off the power switch, then turning it on again. The Ranger warming unit should continue alerting throughout this sequence.

10.

Securely tighten the over-temperature screw, turn off the Ranger warming unit, and unplug the unit. Once power is cut to the Ranger warming unit, the alert will cease. The unit is ready to return to service after it cools to normal operating temperature (approximately 20-30 minutes).

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

Date ____________

Date ____________

GB / 34-8719-2503-7

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

9

3.

Using room temperature saline/water, prime the cassette per instructions included with it.

NOTE: To achieve correct results, fluids must be administered into the inlet tube, NOT into the outlet tube. 4.

Close patient line with white clamp to stop flow (See Figure 5.).

5.

Turn the Ranger warming unit ON and allow it to warm up for 5 minutes.

6.

The Ranger warming unit display should read 41°C [±1°C]. Note the temperature on the thermocouple temperature monitor. If the temperature reading is not 41°C [±1°C], contact 3M technical support.

NOTE: Most handheld temperature meters have a ±1°C tolerance.

TESTING THE OVER‑TEMPERATURE ALERT POINTS (43°C [±1°C] AND 46°C [+3, ‑2°C]) The over-temperature alert test causes the Ranger warming unit to go into an over-temperature test mode by manually overriding the primary control system and engaging the heaters. The Ranger warming system is very responsive to heater input; therefore the test procedures are technique sensitive. Read instructions thoroughly before beginning these tests. The first alert point at 43°C [±1°C] notifies user to the rise in temperature (see step 7). At the 46°C [+3, -2°C] secondary alert set point, the unit cuts power to the heaters (see step 8). Please note that due to the heaters’ rapid response, you may see temperature readings drift within the range of 44-49°C.

Ranger Blood/Fluid Warming Unit, Model 245 Maintenance Log The operating temperature and alerts should be tested at least every 6 months or according to institutional protocol.

MAINTENANCE ACTION PERFORMED MODEL ____________ SN____________ Date ____________

Date ____________

CASSETTE OVER‑TEMPERATURE SCREW

BLUE CLAMP

FIGURE 6: RANGER WARMING UNIT OVER‑TEMPERATURE SCREW OUTLET TUBE

INLET TUBE FLUID SOURCE

7.

EXIT BUBBLE TRAP WHITE CLAMP

8.

ROLLER CLAMP

FIGURE 5: RANGER STANDARD FLOW BLOOD/FLUID WARMING SET

8

PDF Scaled at 75.0%

Loosen the over-temperature screw on the bottom of the Ranger warming unit (see Figure 6.). Listen for a slight click as the microswitch opens. Loosen 1/2 turn more. This unit is now in over-temperature test mode, and the temperature output of the unit should begin to rise. When the Ranger display reads 43°C, verify that an audible alert sounds, the alert light illuminates, and the display alternately flashes “HI” and the plate temperature. Listen for the power relay to click at 46°C [+3, -2°C] (you can feel the click when holding the lower left corner of the unit as you face the front display). The click signifies the secondary alert trip point and signals that power to the heaters has been shut off. The over-temperature alert sounds, the alarm light illuminates, and the alphanumeric display alternately reads “HI” and the plate temperature. Watch the thermocouple temperature monitor to determine the unit’s peak temperature output (less than 1 minute). The temperature reading on the monitor should peak at 46°C [+3, -2°C].

Date ____________

Date ____________

Date ____________

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 warming unit, unplug it, and run cold fluids through the cassette. This returns the unit to normal operating temperature. Contact 3M technical support. 9.

The secondary alert is designed to latch. Verify this feature by momentarily turning off the power switch, then turning it on again. The Ranger warming unit should continue alerting throughout this sequence.

10.

Securely tighten the over-temperature screw, turn off the Ranger warming unit, and unplug the unit. Once power is cut to the Ranger warming unit, the alert will cease. The unit is ready to return to service after it cools to normal operating temperature (approximately 20-30 minutes).

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

Date ____________

Date ____________

GB / 34-8719-2503-7

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C] Over‑temperature alert points: Audible (43°C [±1°C] on Ranger unit display) Secondary (46°C [+3, -2°C])

______°C

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

9

RANGER IRRIGATION FLUID WARMING SYSTEM, MODEL 247 PREVENTATIVE MAINTENANCE CHECKLIST CAUTION Temperature adjustments cannot be made to the Ranger irrigation fluid warming unit. If the test shows the temperature is out of specification, please contact 3M technical support. INLET TUBE

4.

Close patient line with white clamp to stop flow (See Figure 8.).

Ranger Irrigation Fluid Warming, Model 247 Maintenance Log

5.

Turn the Ranger irrigation warming unit ON and allow it to warm up for 5 minutes.

THE OPERATING TEMPERATURE AND ALERTS SHOULD BE TESTED AT LEAST EVERY 6 MONTHS OR ACCORDING TO INSTITUTIONAL PROTOCOL.

6.

The Ranger irrigation warming unit display should read 41°C [±1°C]. Note the temperature on the thermocouple temperature monitor. If the temperature reading is not 41°C [±1°C], contact 3M technical support.

NOTE: Most handheld temperature meters have a ±1°C tolerance.

MAINTENANCE ACTION PERFORMED MODEL ____________ SN____________ Date ____________

TESTING THE OVER‑TEMPERATURE ALERT POINTS (48°C [±2°C] AND 50°C [±2°C]) Insert cassette before priming.

The over-temperature alert test causes the Ranger irrigation warming unit to go into an over-temperature test mode by manually overriding the primary control system and engaging the heaters. The Ranger irrigation warming system is very responsive to heater input; therefore the test procedures are technique sensitive. Read instructions thoroughly before beginning these tests.

Drain 2mL or more from cassette to remove.

Blood/Fluid Warming System

The first alert point at 48°C [±2°C] notifies user to the rise in temperature (see step 7). At the 50°C [±2°C] secondary alert set point, the unit cuts power to the heaters (see step 8).

ALUMINUM TAPE THERMOCOUPLE 0.75"

Date ____________

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

OVER‑TEMPERATURE SCREW

Date ____________

CASSETTE

Date ____________ FIG. 9: RANGER IRRIGATION FLUID WARMING UNIT OVER‑TEMPERATURE SCREW

OVER‑TEMPERATURE SCREW

FLUID SOURCE

7. WHITE CLAMP

INLET TUBE

OUTLET TUBE BLUE CLAMP

8. EXIT

FIGURE 8: RANGER IRRIGATION FLUID WARMING CASSETTE

TOOLS AND EQUIPMENT •

Thermocouple: 0.005” lead or smaller (part #90020)

•

Calibrated thermocouple temperature monitor

•

Aluminum tape

•

Ranger irrigation fluid warming set

•

Loosen the over-temperature screw on the bottom of the Ranger irrigation unit (see Figure 9). Listen for a slight click as the microswitch opens. Loosen 1/2 turn more. This unit is now in over-temperature test mode, and the temperature output of the unit should begin to rise. When the display reads 48°C, verify that an audible alert sounds, the alert light illuminates, and the display alternately flashes “HI” and the plate temperature. Listen for the power relay to click at 50°C [±2°C] (you can feel the click when holding the lower left corner of the unit as you face the front display). The click signifies the secondary alert trip point and signals that power to the heaters has been shut off. The over-temperature alert sounds, the alert light illuminates, and the alphanumeric display alternately reads “HI” and the plate temperature. Watch the thermocouple temperature monitor to determine the unit’s peak temperature output (less than 1 minute). The temperature reading on the monitor should peak at 50°C [±2°C].

Date ____________

Date ____________

Phillips screwdriver

NOTE: If the temperature displayed on the thermocouple monitor exceeds 52°C during the test, tighten the over-temperature test screw on the bottom of the Ranger irrigation warming unit, unplug it, and run cold fluids through the cassette. This returns the unit to normal operating temperature. Call 3M technical support.

The power fuses are located in the power entry module.

•

Saline/water

9.

TOOLS AND EQUIPMENT

1.

Use aluminum tape to affix a thermocouple to the top surface of the Ranger irrigation fluid warming cassette as shown in Figure 7. Slide the warming cassette into the slot of the Ranger irrigation fluid warming unit.

3.

Using room temperature saline/water, prime the cassette per instructions included with it.

NOTE: To achieve correct results, fluids must be administered into the inlet tube, NOT into the outlet tube.

10

PDF Scaled at 75.0%

______°C ______°C

8.50"

FIGURE 7: RANGER IRRIGATION FLUID WARMING CASSETTE

2.

______°C ______°C

10.

The secondary alert is designed to latch. Verify this feature by momentarily turning off the power switch, then turning it on again. The Ranger irrigation warming unit should continue alerting throughout this sequence. Securely tighten the over-temperature screw, turn off the Ranger irrigation warming unit, and unplug the unit. Once power is cut to the Ranger irrigation warming unit, the alert will cease. The unit is ready to return to service after it cools to normal operating temperature (approximately 20-30 minutes).

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

REPLACING THE POWER FUSE 5.

Remove the blown fuse from the fuse carrier and replace with a new fuse (as marked).

Small slotted screwdriver

6.

Place the fuse carrier back into the power entry module.

METHOD

7.

Reattach the power cord.

1.

Disconnect the warming unit from the power source.

8.

Reconnect the warming unit to the power source.

2.

Remove the power cord.

9.

Turn the unit on to verify normal operation.

3.

Locate the fuse carrier in the power entry module.

10.

Record the maintenance action taken.

4.

Use the small screwdriver to remove the fuse carrier from the power entry module.

GB / 34-8719-2503-7

11

RANGER IRRIGATION FLUID WARMING SYSTEM, MODEL 247 PREVENTATIVE MAINTENANCE CHECKLIST CAUTION Temperature adjustments cannot be made to the Ranger irrigation fluid warming unit. If the test shows the temperature is out of specification, please contact 3M technical support. INLET TUBE

4.

Close patient line with white clamp to stop flow (See Figure 8.).

Ranger Irrigation Fluid Warming, Model 247 Maintenance Log

5.

Turn the Ranger irrigation warming unit ON and allow it to warm up for 5 minutes.

THE OPERATING TEMPERATURE AND ALERTS SHOULD BE TESTED AT LEAST EVERY 6 MONTHS OR ACCORDING TO INSTITUTIONAL PROTOCOL.

6.

The Ranger irrigation warming unit display should read 41°C [±1°C]. Note the temperature on the thermocouple temperature monitor. If the temperature reading is not 41°C [±1°C], contact 3M technical support.

NOTE: Most handheld temperature meters have a ±1°C tolerance.

MAINTENANCE ACTION PERFORMED MODEL ____________ SN____________ Date ____________

TESTING THE OVER‑TEMPERATURE ALERT POINTS (48°C [±2°C] AND 50°C [±2°C]) Insert cassette before priming.

The over-temperature alert test causes the Ranger irrigation warming unit to go into an over-temperature test mode by manually overriding the primary control system and engaging the heaters. The Ranger irrigation warming system is very responsive to heater input; therefore the test procedures are technique sensitive. Read instructions thoroughly before beginning these tests.

Drain 2mL or more from cassette to remove.

Blood/Fluid Warming System

The first alert point at 48°C [±2°C] notifies user to the rise in temperature (see step 7). At the 50°C [±2°C] secondary alert set point, the unit cuts power to the heaters (see step 8).

ALUMINUM TAPE THERMOCOUPLE 0.75"

Date ____________

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

Operating temperature: (Specification = 41°C [±1°C]) Over‑temperature alert points: Audible (48°C [±2°C] on Ranger unit display) Secondary (50°C [±2°C])

______°C

OVER‑TEMPERATURE SCREW

Date ____________

CASSETTE

Date ____________ FIG. 9: RANGER IRRIGATION FLUID WARMING UNIT OVER‑TEMPERATURE SCREW

OVER‑TEMPERATURE SCREW

FLUID SOURCE

7. WHITE CLAMP

INLET TUBE

OUTLET TUBE BLUE CLAMP

8. EXIT

FIGURE 8: RANGER IRRIGATION FLUID WARMING CASSETTE

TOOLS AND EQUIPMENT •

Thermocouple: 0.005” lead or smaller (part #90020)

•

Calibrated thermocouple temperature monitor

•

Aluminum tape

•

Ranger irrigation fluid warming set

•

Loosen the over-temperature screw on the bottom of the Ranger irrigation unit (see Figure 9). Listen for a slight click as the microswitch opens. Loosen 1/2 turn more. This unit is now in over-temperature test mode, and the temperature output of the unit should begin to rise. When the display reads 48°C, verify that an audible alert sounds, the alert light illuminates, and the display alternately flashes “HI” and the plate temperature. Listen for the power relay to click at 50°C [±2°C] (you can feel the click when holding the lower left corner of the unit as you face the front display). The click signifies the secondary alert trip point and signals that power to the heaters has been shut off. The over-temperature alert sounds, the alert light illuminates, and the alphanumeric display alternately reads “HI” and the plate temperature. Watch the thermocouple temperature monitor to determine the unit’s peak temperature output (less than 1 minute). The temperature reading on the monitor should peak at 50°C [±2°C].

Date ____________

Date ____________

Phillips screwdriver

NOTE: If the temperature displayed on the thermocouple monitor exceeds 52°C during the test, tighten the over-temperature test screw on the bottom of the Ranger irrigation warming unit, unplug it, and run cold fluids through the cassette. This returns the unit to normal operating temperature. Call 3M technical support.

The power fuses are located in the power entry module.

•

Saline/water

9.

TOOLS AND EQUIPMENT

1.

Use aluminum tape to affix a thermocouple to the top surface of the Ranger irrigation fluid warming cassette as shown in Figure 7. Slide the warming cassette into the slot of the Ranger irrigation fluid warming unit.

3.

Using room temperature saline/water, prime the cassette per instructions included with it.

NOTE: To achieve correct results, fluids must be administered into the inlet tube, NOT into the outlet tube.

10

PDF Scaled at 75.0%

______°C ______°C

8.50"

FIGURE 7: RANGER IRRIGATION FLUID WARMING CASSETTE

2.

______°C ______°C

10.

The secondary alert is designed to latch. Verify this feature by momentarily turning off the power switch, then turning it on again. The Ranger irrigation warming unit should continue alerting throughout this sequence. Securely tighten the over-temperature screw, turn off the Ranger irrigation warming unit, and unplug the unit. Once power is cut to the Ranger irrigation warming unit, the alert will cease. The unit is ready to return to service after it cools to normal operating temperature (approximately 20-30 minutes).

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

______°C ______°C

______°C ______°C

______°C ______°C

______°C ______°C

REPLACING THE POWER FUSE 5.

Remove the blown fuse from the fuse carrier and replace with a new fuse (as marked).

Small slotted screwdriver

6.

Place the fuse carrier back into the power entry module.

METHOD

7.

Reattach the power cord.

1.

Disconnect the warming unit from the power source.

8.

Reconnect the warming unit to the power source.

2.

Remove the power cord.

9.

Turn the unit on to verify normal operation.

3.

Locate the fuse carrier in the power entry module.

10.

Record the maintenance action taken.

4.

Use the small screwdriver to remove the fuse carrier from the power entry module.

GB / 34-8719-2503-7

11

Troubleshooting

Specifications

CONDITION Nothing illuminates on the warming unit panel.

CAUSE

SOLUTION

• Unit is not turned on, plugged in, or power cord is not plugged into an appropriate outlet.

• 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.

• Unit failure. CONDITION

CAUSE Temporary over-temperature condition because:

Alert indicator illuminates and alert sounds, alphanumeric display alternately flashes a temperature of 43˚C for the Model 245 (48°C for the Model 247) or higher and the word “HI.”

CONDITION

• Check fuses.

RF emissions CISPR 11

SOLUTION • 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.

• Fluids were prewarmed to above 42°C before being run through the warming unit.

• Turn off unit. Discontinue infusion of fluids. Do not warm fluids before infusing them through the Ranger warming unit.

CAUSE

SOLUTION

Primary controller failure. Unit will no longer operate.

Power to heating plates will shut off if temperature rises to 44°C for the Model 245 (50°C for the Model 247). Turn unit off and unplug it. Discontinue use of unit. Discard warming set. Alert will continue to sound if you do not unplug unit. Contact 3M technical support.

CAUSE

• Unit alerts 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.

SOLUTION Make sure over-temperature screw is completely tightened. If it is missing, turn unit off and unplug it. Contact 3M technical support.

• 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). CONDITION Alert sounds but unit has been turned off.

CONDITION Cannot remove cassette from unit.

CONDITION Alert indicator light illuminates and alert sounds, alphanumeric display alternately flashes a temperature of 33°C or below and the word “LO.” CONDITION Alphanumeric display reads “Er 4” or “Open.” CONDITION Alphanumeric display reads “Er 5” or “Open.”

12

PDF Scaled at 75.0%

CAUSE

SOLUTION

• Independent backup safety system has been activated.

• Unplug unit. Contact 3M technical support.

• Over-temperature screw loose.

• Make sure over-temperature screw is completely tightened. If it is missing, turn unit off and unplug it. Contact 3M technical support.

CAUSE

RF emissions

Compliance Group 1

The model 245 uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.

Class B

The model 245 is suitable for use in all establishments, including domestic establishments and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

CISPR 11 Harmonic emissions

Electromagnetic environment ‑ guidance

Class A

IEC 61000-3-2

• Unit was turned on and reached set point temperature before cassette was inserted.

CONDITION

Emissions test

• Contact 3M technical support.

• An extreme change in flow rates occurred (e.g., from 500 mL/min to stop flow).

Alert sounds, alphanumeric display and alert indicator light go dark.

Guidance and manufacturer’s declaration – electromagnetic emissions The model 245 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 245 should assure that it is used in such an environment.

Voltage fluctuations/ Flicker emissions

Complies

IEC 61000-3-3 Guidance and manufacturer’s declaration – electromagnetic immunity The model 245 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 245 should assure that it is used in such an environment. Immunity Test

IEC 60601 test level

Compliance level

Electrostatic discharge (ESD)

±6 kV contact

±6 kV contact

IEC 61000-4-2

±8 kV air

±8 kV air

Electrical fast transient/burst

±2 kV power lines

±2 kV power lines

Mains power quality should be that of a typical commercial or hospital environment.

Surge

±1 kV line to line

±1 kV line to line

IEC 61000-4-5

±2 kV line to gnd

±2 kV line to gnd

Mains power quality should be that of a typical commercial or hospital environment.

Voltage dips, short interruptions and voltage variations on power supply input lines

<5% UT (>95% dip in UT) for 0,5 cycle

<5% UT (>95% dip in UT) for 0,5 cycle

40% UT (60% dip in UT) for 6 cycles

40% UT (60% dip in UT) for 6 cycles

70% UT (30% dip in UT) for 30 cycles

70% UT (30% dip in UT) for 30 cycles

<5% UT (>95% dip in UT) for 5 sec

<5% UT (>95% dip in UT) for 5 sec

3 A/m

3 A/m

IEC 61000-4-4

IEC 61000-4-11

SOLUTION

• Cassette is too full, fluids are still being infused, or clamp is open proximal to the cassette.

• 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.

Power frequency (50/60 Hz) magnetic field

• Warming unit is below patient level, creating excessive back pressure.

• Raise unit above patient level.

NOTE UT is the a.c. mains voltage prior to application of the test level.

CAUSE

Electromagnetic environment ‑ guidance Floors should be wood, concrete or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30%.

Mains power quality should be that of a typical commercial or hospital environment. If the user of the model 245 requires continued operation during power mains interruptions, it is recommended that the model 245 be powered from an uninterruptible power supply or a battery.

Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment.

IEC 61000-4-8

SOLUTION

Under-temperature condition caused Alert should stop when temperature rises above 33°C. If by very high flow using very cold alert continues, turn off unit, unplug unit and discontinue fluid, or defective heater/relay. use. Contact 3M technical support. CAUSE Open wire on temperature sensor. CAUSE Electrical interference.

SOLUTION Do not use unit. Contact 3M technical support. SOLUTION Remove the unit. Refer to biomedical technician or contact 3M technical support.

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

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13

Troubleshooting

Specifications

CONDITION Nothing illuminates on the warming unit panel.

CAUSE

SOLUTION

• Unit is not turned on, plugged in, or power cord is not plugged into an appropriate outlet.

• 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.

• Unit failure. CONDITION

CAUSE Temporary over-temperature condition because:

Alert indicator illuminates and alert sounds, alphanumeric display alternately flashes a temperature of 43˚C for the Model 245 (48°C for the Model 247) or higher and the word “HI.”

CONDITION

• Check fuses.

RF emissions CISPR 11

SOLUTION • 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.

• Fluids were prewarmed to above 42°C before being run through the warming unit.

• Turn off unit. Discontinue infusion of fluids. Do not warm fluids before infusing them through the Ranger warming unit.

CAUSE

SOLUTION

Primary controller failure. Unit will no longer operate.

Power to heating plates will shut off if temperature rises to 44°C for the Model 245 (50°C for the Model 247). Turn unit off and unplug it. Discontinue use of unit. Discard warming set. Alert will continue to sound if you do not unplug unit. Contact 3M technical support.

CAUSE

• Unit alerts 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.

SOLUTION Make sure over-temperature screw is completely tightened. If it is missing, turn unit off and unplug it. Contact 3M technical support.

• 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). CONDITION Alert sounds but unit has been turned off.

CONDITION Cannot remove cassette from unit.

CONDITION Alert indicator light illuminates and alert sounds, alphanumeric display alternately flashes a temperature of 33°C or below and the word “LO.” CONDITION Alphanumeric display reads “Er 4” or “Open.” CONDITION Alphanumeric display reads “Er 5” or “Open.”

12

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CAUSE

SOLUTION

• Independent backup safety system has been activated.

• Unplug unit. Contact 3M technical support.

• Over-temperature screw loose.

• Make sure over-temperature screw is completely tightened. If it is missing, turn unit off and unplug it. Contact 3M technical support.

CAUSE

RF emissions

Compliance Group 1

The model 245 uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.

Class B

The model 245 is suitable for use in all establishments, including domestic establishments and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

CISPR 11 Harmonic emissions

Electromagnetic environment ‑ guidance

Class A

IEC 61000-3-2

• Unit was turned on and reached set point temperature before cassette was inserted.

CONDITION

Emissions test

• Contact 3M technical support.

• An extreme change in flow rates occurred (e.g., from 500 mL/min to stop flow).

Alert sounds, alphanumeric display and alert indicator light go dark.

Guidance and manufacturer’s declaration – electromagnetic emissions The model 245 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 245 should assure that it is used in such an environment.

Voltage fluctuations/ Flicker emissions

Complies

IEC 61000-3-3 Guidance and manufacturer’s declaration – electromagnetic immunity The model 245 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 245 should assure that it is used in such an environment. Immunity Test

IEC 60601 test level

Compliance level

Electrostatic discharge (ESD)

±6 kV contact

±6 kV contact

IEC 61000-4-2

±8 kV air

±8 kV air

Electrical fast transient/burst

±2 kV power lines

±2 kV power lines

Mains power quality should be that of a typical commercial or hospital environment.

Surge

±1 kV line to line

±1 kV line to line

IEC 61000-4-5

±2 kV line to gnd

±2 kV line to gnd

Mains power quality should be that of a typical commercial or hospital environment.

Voltage dips, short interruptions and voltage variations on power supply input lines

<5% UT (>95% dip in UT) for 0,5 cycle

<5% UT (>95% dip in UT) for 0,5 cycle

40% UT (60% dip in UT) for 6 cycles

40% UT (60% dip in UT) for 6 cycles

70% UT (30% dip in UT) for 30 cycles

70% UT (30% dip in UT) for 30 cycles

<5% UT (>95% dip in UT) for 5 sec

<5% UT (>95% dip in UT) for 5 sec

3 A/m

3 A/m

IEC 61000-4-4

IEC 61000-4-11

SOLUTION

• Cassette is too full, fluids are still being infused, or clamp is open proximal to the cassette.

• 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.

Power frequency (50/60 Hz) magnetic field

• Warming unit is below patient level, creating excessive back pressure.

• Raise unit above patient level.

NOTE UT is the a.c. mains voltage prior to application of the test level.

CAUSE

Electromagnetic environment ‑ guidance Floors should be wood, concrete or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30%.

Mains power quality should be that of a typical commercial or hospital environment. If the user of the model 245 requires continued operation during power mains interruptions, it is recommended that the model 245 be powered from an uninterruptible power supply or a battery.

Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment.

IEC 61000-4-8

SOLUTION

Under-temperature condition caused Alert should stop when temperature rises above 33°C. If by very high flow using very cold alert continues, turn off unit, unplug unit and discontinue fluid, or defective heater/relay. use. Contact 3M technical support. CAUSE Open wire on temperature sensor. CAUSE Electrical interference.

SOLUTION Do not use unit. Contact 3M technical support. SOLUTION Remove the unit. Refer to biomedical technician or contact 3M technical support.

3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

GB / 34-8719-2503-7

13

Guidance and manufacturer’s declaration – electromagnetic immunity

Guidance and manufacturer’s declaration – electromagnetic emissions

The model 245 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 245 should assure that it is used in such an environment.

The model 247 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 247 should assure that it is used in such an environment.

Immunity test

Iec 60601 test level

Compliance level

Electromagnetic environment ‑ guidance

Emissions test

Portable and mobile RF communications equipment should be used no closer to any part of the model 245, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter. Recommended separation distance

3 Vrms 150 kHz to 80 MHz

Radiated RF IEC 61000-4-3

3 V/m 80 MHz to 2,5 GHz

The model 247 uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.

Class B

The model 247 is suitable for use in all establishments, including domestic establishments and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

CISPR 11 Class A

IEC 61000-3-2

d = 1.2

80 MHz to 800 MHz

Voltage fluctuations/Flicker emissions

3 Vrms

d = 2.3

800 MHz to 2,5 GHz

IEC 61000-3-3

3 V/m

where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in meters (m). Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey,a should be less than the compliance level in each frequency range.b Interference may occur in the vicinity of equipment marked with the following symbol:

NOTE 1

RF emissions

Electromagnetic environment ‑ guidance

Group 1

CISPR 11

Harmonic emissions

d = 1.2 Conducted RF IEC 61000-4-6

Compliance

RF emissions

Complies

Guidance and manufacturer’s declaration – electromagnetic immunity The model 247 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 247 should assure that it is used in such an environment. Immunity Test

IEC 60601 test level

Compliance level

Electrostatic discharge (ESD)

±6 kV contact

±6 kV contact

IEC 61000-4-2

±8 kV air

±8 kV air

Electrical fast transient/burst

±2 kV power lines

±2 kV power lines

Mains power quality should be that of a typical commercial or hospital environment. Mains power quality should be that of a typical commercial or hospital environment.

IEC 61000-4-4

At 80 MHz and 800 MHz, the higher frequency range applies.

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

Surge

±1 kV line to line

±1 kV line to line

IEC 61000-4-5

±2 kV line to gnd

±2 kV line to gnd

a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the model 245 is used exceeds the applicable RF compliance level above, the model 245 should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the model 245.

Voltage dips, short interruptions and voltage variations on power supply input lines

<5% UT (>95% dip in UT) for 0,5 cycle

<5% UT (>95% dip in UT) for 0,5 cycle

40% UT (60% dip in UT) for 6 cycles

40% UT (60% dip in UT) for 6 cycles

70% UT (30% dip in UT) for 30 cycles

70% UT (30% dip in UT) for 30 cycles

<5% UT (>95% dip in UT) for 5 sec

<5% UT (>95% dip in UT) for 5 sec

3 A/m

3 A/m

b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

IEC 61000-4-11

Recommended separation distances between portable and mobile RF communications equipment and the model 245 The model 245 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the model 245 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the model 245 as recommended below, according to the maximum output power of the communications equipment. Rated maximum output power of transmitter W

Separation distance according to frequency of transmitter m 150 kHz to 80 MHz d = 1.2

80 MHz to 800MHz d = 1.2

800 MHz to 2,5 GHz d = 2.3

0,01

0.12

0.12

0.23

0,1

0.37

0.37

0.74 2.30

1

1.17

1.17

10

3.69

3.69

7.37

100

11.67

11.67

23.30

Electromagnetic environment ‑ guidance

Power frequency (50/60 Hz) magnetic field IEC 61000-4-8

Floors should be wood, concrete or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30%.

Mains power quality should be that of a typical commercial or hospital environment. If the user of the model 247 requires continued operation during power mains interruptions, it is recommended that the model 247 be powered from an uninterruptible power supply or a battery.

Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment.

NOTE UT is the a.c. mains voltage prior to application of the test level.

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. NOTE 1

At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

14

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3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

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15

Guidance and manufacturer’s declaration – electromagnetic immunity

Guidance and manufacturer’s declaration – electromagnetic emissions

The model 245 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 245 should assure that it is used in such an environment.

The model 247 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 247 should assure that it is used in such an environment.

Immunity test

Iec 60601 test level

Compliance level

Electromagnetic environment ‑ guidance

Emissions test

Portable and mobile RF communications equipment should be used no closer to any part of the model 245, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter. Recommended separation distance

3 Vrms 150 kHz to 80 MHz

Radiated RF IEC 61000-4-3

3 V/m 80 MHz to 2,5 GHz

The model 247 uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.

Class B

The model 247 is suitable for use in all establishments, including domestic establishments and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

CISPR 11 Class A

IEC 61000-3-2

d = 1.2

80 MHz to 800 MHz

Voltage fluctuations/Flicker emissions

3 Vrms

d = 2.3

800 MHz to 2,5 GHz

IEC 61000-3-3

3 V/m

where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in meters (m). Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey,a should be less than the compliance level in each frequency range.b Interference may occur in the vicinity of equipment marked with the following symbol:

NOTE 1

RF emissions

Electromagnetic environment ‑ guidance

Group 1

CISPR 11

Harmonic emissions

d = 1.2 Conducted RF IEC 61000-4-6

Compliance

RF emissions

Complies

Guidance and manufacturer’s declaration – electromagnetic immunity The model 247 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 247 should assure that it is used in such an environment. Immunity Test

IEC 60601 test level

Compliance level

Electrostatic discharge (ESD)

±6 kV contact

±6 kV contact

IEC 61000-4-2

±8 kV air

±8 kV air

Electrical fast transient/burst

±2 kV power lines

±2 kV power lines

Mains power quality should be that of a typical commercial or hospital environment. Mains power quality should be that of a typical commercial or hospital environment.

IEC 61000-4-4

At 80 MHz and 800 MHz, the higher frequency range applies.

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

Surge

±1 kV line to line

±1 kV line to line

IEC 61000-4-5

±2 kV line to gnd

±2 kV line to gnd

a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the model 245 is used exceeds the applicable RF compliance level above, the model 245 should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the model 245.

Voltage dips, short interruptions and voltage variations on power supply input lines

<5% UT (>95% dip in UT) for 0,5 cycle

<5% UT (>95% dip in UT) for 0,5 cycle

40% UT (60% dip in UT) for 6 cycles

40% UT (60% dip in UT) for 6 cycles

70% UT (30% dip in UT) for 30 cycles

70% UT (30% dip in UT) for 30 cycles

<5% UT (>95% dip in UT) for 5 sec

<5% UT (>95% dip in UT) for 5 sec

3 A/m

3 A/m

b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

IEC 61000-4-11

Recommended separation distances between portable and mobile RF communications equipment and the model 245 The model 245 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the model 245 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the model 245 as recommended below, according to the maximum output power of the communications equipment. Rated maximum output power of transmitter W

Separation distance according to frequency of transmitter m 150 kHz to 80 MHz d = 1.2

80 MHz to 800MHz d = 1.2

800 MHz to 2,5 GHz d = 2.3

0,01

0.12

0.12

0.23

0,1

0.37

0.37

0.74 2.30

1

1.17

1.17

10

3.69

3.69

7.37

100

11.67

11.67

23.30

Electromagnetic environment ‑ guidance

Power frequency (50/60 Hz) magnetic field IEC 61000-4-8

Floors should be wood, concrete or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30%.

Mains power quality should be that of a typical commercial or hospital environment. If the user of the model 247 requires continued operation during power mains interruptions, it is recommended that the model 247 be powered from an uninterruptible power supply or a battery.

Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment.

NOTE UT is the a.c. mains voltage prior to application of the test level.

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. NOTE 1

At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

14

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3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

GB / 34-8719-2503-7

15

Guidance and manufacturer’s declaration – electromagnetic immunity The model 247 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 247 should assure that it is used in such an environment. Immunity Test

IEC 60601 test level

Compliance level

Electromagnetic environment ‑ guidance

Recommended separation distance d = 1.2 Conducted RF IEC 61000-4-6 Radiated RF IEC 61000-4-3

80 MHz to 800 MHz 800 MHz to 2,5 GHz

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)

CERTIFICATIONS

Portable and mobile RF communications equipment should be used no closer to any part of the model 247, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

d = 1.2

PHYSICAL CHARACTERISTICS WARMING UNIT

3 Vrms 150 kHz to 80 MHz

3 Vrms

d = 2.3

3 V/m 80 MHz to 2,5 GHz

3 V/m

where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in meters (m). Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey,a should be less than the compliance level in each frequency range.b Interference may occur in the vicinity of equipment marked with the following symbol:

IEC/EN 60601-1; CAN/CSA-C22.2, No. 601.1

CLASSIFICATION MEDICAL - GENERAL MEDICAL EQUIPMENT AS TO ELECTRICAL SHOCK, FIRE AND MECHANICAL HAZARDS ONLY IN ACCORDANCE WITH UL 60601‑1; CAN/ CSA‑C22.2, No. 601.1; ANSI/AAMI ES60601‑1:2005 CSA‑C22.2 No. 60601‑1:08; Control No. 4HZ8 The product fulfills the requirements of: EN60601-1: 2006 + CORR: 2010 (Medical electrical equipment Part 1: General requirements for basic safety and essential performance) CAN/CSA-C22.2 No. 60601-1 (2008) (Medical Electrical Equipment - Part 1: General Requirements for Basic Safety and Essential Performance) (includes National Differences for Canada) ANSI/AAMI ES60601-1 (2005 + C1:09 + A2:10) (Medical Electrical Equipment - Part 1: General Requirements for Basic Safety and Essential Performance) (includes Deviations for Unites States)

ELECTRICAL CHARACTERISTICS

TEMPERATURE AND ACCURACY CHARACTERISTICS

DEVICE RATING

SET POINT TEMPERATURE

100-120 VAC, 50/60 Hz

41°C [±1°C]

220-240 VAC, 50/60 Hz MAXIMUM HEATING POWER

OVER‑TEMPERATURE ALERT

900 W

Model 245: 43°C [+3/-2°C] Model 247: 48°C [±2°C]

FUSE 2 x T10A-H (250V) for 100-120 VAC 2 x T6.3A-H (250V) for 220-240 VAC

UNDER‑TEMPERATURE ALERT 33°C [±2°C]

FUSE TYPE

OVER‑TEMPERATURE CUTOFF

Time delay, high breaking

Model 245: 44°C [±2°C] (warming units Rev N and newer)

Model 245 is classified under the Medical Device Directive as a Class IIb device).

46°C [±2°C] (warming units Rev A to M) Model 247:

NOTE 1

At 80 MHz and 800 MHz, the higher frequency range applies.

50°C [±2°C]

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people. a

b

LEAKAGE CURRENT Meets leakage current requirements in accordance with UL/IEC 60601-1.

Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the model 247 is used exceeds the applicable RF compliance level above, the model 247 should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the model 247.

ENVIRONMENTAL CONDITIONS OPERATING TEMPERATURE RANGE 15° to 40°C (59° to 104°F)

STORAGE TEMPERATURE RANGE

Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

-20° to 45°C (-4° to 113°F)

Recommended separation distances between portable and mobile RF communications equipment and the model 247

OPERATING HUMIDITY 10 to 85% RH, noncondensing

The model 247 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the model 247 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the model 247 as recommended below, according to the maximum output power of the communications equipment. Rated maximum output power of transmitter W

ATMOSPHERIC PRESSURE RANGE 50 kPa to 106 kPa

Separation distance according to frequency of transmitter m 150 kHz to 80 MHz d = 1.2

80 MHz to 800MHz d = 1.2

800 MHz to 2,5 GHz d = 2.3 0.23

0,01

0.12

0.12

0,1

0.37

0.37

0.74

1

1.17

1.17

2.30

10

3.69

3.69

7.37

100

11.67

11.67

23.30

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. NOTE 1

At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

16

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3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

GB / 34-8719-2503-7

17

Guidance and manufacturer’s declaration – electromagnetic immunity The model 247 is intended for use in the electromagnetic environment specified below. The customer or the user of the model 247 should assure that it is used in such an environment. Immunity Test

IEC 60601 test level

Compliance level

Electromagnetic environment ‑ guidance

Recommended separation distance d = 1.2 Conducted RF IEC 61000-4-6 Radiated RF IEC 61000-4-3

80 MHz to 800 MHz 800 MHz to 2,5 GHz

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)

CERTIFICATIONS

Portable and mobile RF communications equipment should be used no closer to any part of the model 247, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

d = 1.2

PHYSICAL CHARACTERISTICS WARMING UNIT

3 Vrms 150 kHz to 80 MHz

3 Vrms

d = 2.3

3 V/m 80 MHz to 2,5 GHz

3 V/m

where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in meters (m). Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey,a should be less than the compliance level in each frequency range.b Interference may occur in the vicinity of equipment marked with the following symbol:

IEC/EN 60601-1; CAN/CSA-C22.2, No. 601.1

CLASSIFICATION MEDICAL - GENERAL MEDICAL EQUIPMENT AS TO ELECTRICAL SHOCK, FIRE AND MECHANICAL HAZARDS ONLY IN ACCORDANCE WITH UL 60601‑1; CAN/ CSA‑C22.2, No. 601.1; ANSI/AAMI ES60601‑1:2005 CSA‑C22.2 No. 60601‑1:08; Control No. 4HZ8 The product fulfills the requirements of: EN60601-1: 2006 + CORR: 2010 (Medical electrical equipment Part 1: General requirements for basic safety and essential performance) CAN/CSA-C22.2 No. 60601-1 (2008) (Medical Electrical Equipment - Part 1: General Requirements for Basic Safety and Essential Performance) (includes National Differences for Canada) ANSI/AAMI ES60601-1 (2005 + C1:09 + A2:10) (Medical Electrical Equipment - Part 1: General Requirements for Basic Safety and Essential Performance) (includes Deviations for Unites States)

ELECTRICAL CHARACTERISTICS

TEMPERATURE AND ACCURACY CHARACTERISTICS

DEVICE RATING

SET POINT TEMPERATURE

100-120 VAC, 50/60 Hz

41°C [±1°C]

220-240 VAC, 50/60 Hz MAXIMUM HEATING POWER

OVER‑TEMPERATURE ALERT

900 W

Model 245: 43°C [+3/-2°C] Model 247: 48°C [±2°C]

FUSE 2 x T10A-H (250V) for 100-120 VAC 2 x T6.3A-H (250V) for 220-240 VAC

UNDER‑TEMPERATURE ALERT 33°C [±2°C]

FUSE TYPE

OVER‑TEMPERATURE CUTOFF

Time delay, high breaking

Model 245: 44°C [±2°C] (warming units Rev N and newer)

Model 245 is classified under the Medical Device Directive as a Class IIb device).

46°C [±2°C] (warming units Rev A to M) Model 247:

NOTE 1

At 80 MHz and 800 MHz, the higher frequency range applies.

50°C [±2°C]

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people. a

b

LEAKAGE CURRENT Meets leakage current requirements in accordance with UL/IEC 60601-1.

Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the model 247 is used exceeds the applicable RF compliance level above, the model 247 should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the model 247.

ENVIRONMENTAL CONDITIONS OPERATING TEMPERATURE RANGE 15° to 40°C (59° to 104°F)

STORAGE TEMPERATURE RANGE

Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

-20° to 45°C (-4° to 113°F)

Recommended separation distances between portable and mobile RF communications equipment and the model 247

OPERATING HUMIDITY 10 to 85% RH, noncondensing

The model 247 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the model 247 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the model 247 as recommended below, according to the maximum output power of the communications equipment. Rated maximum output power of transmitter W

ATMOSPHERIC PRESSURE RANGE 50 kPa to 106 kPa

Separation distance according to frequency of transmitter m 150 kHz to 80 MHz d = 1.2

80 MHz to 800MHz d = 1.2

800 MHz to 2,5 GHz d = 2.3 0.23

0,01

0.12

0.12

0,1

0.37

0.37

0.74

1

1.17

1.17

2.30

10

3.69

3.69

7.37

100

11.67

11.67

23.30

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. NOTE 1

At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

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3M™ Ranger™ Blood/Fluid Warming System - Model 245/ 3M™ Ranger™ Irrigation Fluid Warming System - Model 247 – Service Manual

GB / 34-8719-2503-7

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