Service Manual - Hot Dog Patient Warming
Contents
1. esessessessseeseeseesseesreseesseeseserssressessrssressessrssresseese 17 Cleaning of the Warming Blankets snenneesensseeseeseosseessesessseeseserssressessrssressessessresseese 17 Tro bleshootihg sroniirneren isins an e ERE EAE A E E AR EA 18 Technical Support amp Customer Service ssssssssesessseessessssressesstssresseestesresseeseseessresseserss 21 SpecificatonsSeoimesi n a a a a a a a a aS 22 Emissions and Titty saved sducgs doaeceassesaects cdeawepdeadsdanesticwesssadactessdeuseotasdacaranaeaaieenieucaien 24 Hot Dog Patient Warming System Service Manual Page 3 DEFINITION OF SYMBOLS Attention consult Reference Number accompanying documents BF Patient Applied Part Serial Number Lot Number Manufacture Date Temperature in Range Storage Temperatures Temperature Adjustment Alarm Main s Power On Indicator Fuse Return to Authorized Equipotential Representative 14G l i e e x i gt SE ER Hot Dog Patient Warming System Service Manual Page 4 INTRODUCTION The Hot Dog Patient Warming System consists of two components the Hot Dog Controller and the Hot Dog Warming Blanket The Controller is pre set to deliver a constant efficacious temperature to help maintain normothermia in patients before during and after surgical procedures and to help prevent unintended hypothermia This manual includes maintenance instructions and specifications for the Hot Dog Patient Warming System For addi2. Veterinary Patient Warming System Service Manual For information on operating the Hot Dog Patient Warming System refer to the Instructions for Use Hot Dog Patient Warming System Service Manual Page 2 Contents Definition of SVMDOMSs scv cr4icaaicastetesze peveisessaneneksasesdcesxtontaabtesteaatandeiaseaieh iaiay ERTES SAES 3 TtroduictiO iiss fae seee festa ite IETT E SIER EESE A Ne tis erences tase leat Be LS 4 Description of the Hot Dog Patient Warming SystemError Bookmark not defined PHEGAUCLONIS 25 2 ced aaaea e a ied sadednvahte sung Ea e OaE Eiane 5 Proper Us and Maintenance so aun a an a A R RT EEE AA EETA 6 Read Before Servicing Equipment s ssssssessesessseesseserssressessrssressesressesseestssresseeseeseessre 6 Initial Setup amp ASSEMBLY wscmimiestsviacaatape ta iA E OTR EE E 7 CONTENDS i i pen ees ea aao eaea Eea E ahaha cael EEEE SAAE EAA EDANE TAE EEan 7 Assembly Proced rE siori aisin na e E A EAER A Np EA NEO KARE RRETA 7 Mounting the Hot Dog Controller to an IV Pole ccc ceccceecceeseeeeeceeeeeeeeeeeecsaeenteeeses 8 Overview of Control Panel amp Operating Modes 00 cccecccecsecsseceteceseeeeeeeeseecnaeeneeeeeeensaes 9 Maintenance sd Testing irisi menene aa a E iaaa 11 Verification of Start up Sequence ui 1 3 39c5 sucscahsasssegsbieetaadeyeldcagbaaddvedsarnemtinnnanasiacm dines 11 Preventive Maintenance ssori iiini iarsira aiiin iaieiiea 13 Cleaning of the Controller Housing
3. registered in the U S Patent amp Trademark Office Patents pending 2013 Augustine Biomedical Design All rights reserved 2087 Rev C 6 18 13
4. 98 6 1 8 F High Alarm sounds at 44 C 1 C Independent electronic circuit shuts the heater off if the Warming Blanket temperature reaches 46 C 1 C 12 amps max 1 7 amps max Dual input fused lines Meets UL 2601 1 and IEC 60601 1 requirements for Class I Type BF equipment Peak 580 W 4 6 m 15 ft Input 100 240 VAC 50 60 Hz 600VA Output A 48 VDC 500 VA Max Output B 48 VDC 80 VA Max T6 3AL250V 2 x 5x20mm Hot Dog Patient Warming System Service Manual Page 23 SPECIFICATIONS Certifications Classification Diagnostics Transport Storage Important Information IEC 60601 1 EN 60601 1 2 UL 60601 1 CAN CSA C22 2 No 601 1 EN 55011 ATER Tey lb Classified under IEC 60601 1 Guidelines and other national versions of the Guidelines as Class I Type BF Ordinary equipment Continuous operation Not suitable for use in presence of flammable anesthetic mixtures with air or with oxygen or nitrous oxide Classified by Intertek Testing Services NA Inc with respect to electric shock fire and mechanical hazards only in accordance with UL 60601 1 Classified under the Medical Device Directive 93 42 EEC as a Class IIb device Classified under Canadian Medical Device Regulation as Class II A qualified technician can perform general system testing The Controller has no user serviceable parts Temperature 20 C to 60 C Humidity 20 to 80 Keep Dry This device compl
5. or hospital environment NOTE Uris the a c mains voltage prior to application of the test level Hot Dog Patient Warming System Service Manual Page 26 Table 3 cont d Guidance and manufacturer s declaration electromagnetic immunity The Hot Dog Patient Warming System is intended for use in the electromagnetic environment specified below The customer or the user of the Hot Dog Patient Warming System should assure that it is used in such an environment TEC 60601 i i Immunity test Compliance level Plectromagnene enyironment test level guidance Portable and mobile RF communications equipment should be used no closer to any part of the Hot Dog Patient Warming System including cables than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter Recommended separation distance Conducted RF 3 Vrms 3V d 1 2VP IEC 61000 4 6 150 kHz to 80 MHz d 0 35VP 80 MHz to 800 MHz Radiated RF 10 V m 10 V m IEC 61000 4 3 80 MHz to 2 5 GHz d 0 7VP 800 MHz to 2 5 GHz 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 metres m Field strengths from fixed RF transmitters as determined by an electromagnetic site survey should be less than the compliance level in each frequency range Interference may occur in the vicin
6. the patient condition and procedure for maximum effectiveness Place blanket directly on the patient with the sensor in contact with the patient When using the Hot Dog Blanket under patient or wrapped around patient Do no use the highest heat setting unless you have a towel placed between the patient and the warming blanket The sensor should be in contact with the patient A towel between the sensor and patient is acceptable Ensure that adequate steps are taken to mitigate pressure Hot Dog Patient Warming System Service Manual Page 6 Proper Use and Maintenance Augustine Biomedical Design assumes no responsibility for the reliability performance or safety of the Hot Dog Patient Warming System if the following events occur e The Controller is disassembled or serviced by unauthorized personnel e The patient warming system components are used in a manner other than described in the Instructions for Use manuals e The Controller is installed in an environment that does not meet the appropriate electrical and grounding requirements Read Before Servicing Equipment Repair preventive maintenance and servicing of the patient warming system requires the skill of qualified medical equipment service technicians who are familiar with good practice for medical device repair Do not open the Hot Dog Controller There are no user serviceable parts If service is required contact Technical Support see page 21 Perform all ma
7. Ifa second cable is available swap cables If the alarm resolves the original cable is malfunctioning c Ifa second blanket is available swap blankets If the alarm resolves the original blanket is malfunctioning Select the highest temperature setpoint a Ifthe controller alarms immediately upon selecting a temperature setpoint the blanket or the cable may be malfunctioning b Ifa second cable is available swap cables If the alarm resolves the original cable is malfunctioning c Ifa second blanket is available swap blankets If the alarm resolves the original blanket is malfunctioning 6 Place the blanket black heated side down on a thermally insulated surface such as several layers of blankets or towels or another warming blanket of similar or larger size and let it run a Observe the Temperature In Range indicator If the controller alarms approximately 10 minutes after warming was initiated but the temperature in range indicator did not indicate that set point temperature had been achieved the blanket may be malfunctioning b Ifthe Temperature In Range indicator indicates that set point has been achieved and the controller then alarms the controller or the blanket may be malfunctioning Hot Dog Patient Warming System Service Manual Page 20 Note The controller has a 6 hour shut down alarm indicated by 3 audible beeps after which the alarm LED will flash continuously This alarm condition occurs if a bl
8. System should assure that it is used in such an environment Emissions test Compliance Electromagnetic environment guidance RF emissions The Hot Dog Patient Warming System uses RF energy only for its internal CISPR 11 Group 1 function Therefore its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment RF emissions i Class A CISPR 11 The Hot Dog Patient Warming System is suitable for use in all Harmonic emissions Cl A establishments other than domestic and those directly IEC 61000 3 2 ass connected to the public low voltage power supply Voltage fluctuations network that supplies buildings used for domestic purposes flicker emissions Complies IEC 61000 3 3 Hot Dog Patient Warming System Service Manual Page 25 Table 3 Guidance and manufacturer s declaration electromagnetic immunity The Hot Dog Patient Warming System is intended for use in the electromagnetic environment specified below The customer or the user of the Hot Dog Patient Warming System should assure that it is used in such an environment Immunity test TEC 60601 test level Compliance level Electromagnetic environment guidance Electrostatic discharge ESD IEC 61000 4 2 6 kV contact 8 kV air 6 kV contact 8 kV air Floors should be wood concrete or ceramic tile If floors are covered with synthetic material the relative humidity should be at le
9. able connecting Warming Blanket to Controller is disconnected e Power is removed at mains Sensor failure When either sensor is opened or shorted audible and visual alarms are initiated and power is removed from output If both sensors are opened or shorted no alarms are initiated power is removed from output and the temperature selector switch becomes inactive e Replace the Warming Blanket Basic Troubleshooting Steps If a system alarm occurs the following steps will help identify which system component is malfunctioning Once a malfunctioning device has been identified or for additional troubleshooting support contact Customer Service at 866 484 3505 Hot Dog Patient Warming System Service Manual Page 19 l Turn off the controller and unplug all blankets and cables Let the blanket cool to room temperature Complete the following steps IN ORDER Turn the mains power switch on the controller to ON and ensure that the controller successfully completes the brief diagnostic check all lights illuminate sequentially followed by a short audible beep a Ifthe startup sequence varies or is incomplete the controller is malfunctioning Plug one end of the cable into the temperature controller a Ifthe controller alarms the cable is malfunctioning Plug the other end of the cable into a blanket a Ifthe controller alarms immediately upon attaching a blanket the blanket or the cable may be malfunctioning b
10. anket is left on for 6 hours with no user intervention Selecting a temperature set point will clear this alarm condition Hot Dog Patient Warming System Service Manual Page 21 TECHNICAL SUPPORT amp CUSTOMER SERVICE Please have the serial number of your Hot Dog Controller when you call for technical support The serial number is located on the back of the Controller If it is necessary to return the Controller for service or repair contact your local supplier or sales representative USA and Worldwide Augustine Biomedical Design 6581 City West Parkway Eden Prairie MN 55344 USA TEL 952 465 3500 FAX 952 465 3501 www augbiomed com Hot Dog Patient Warming System Service Manual Page 22 SPECIFICATIONS Physical Characteristics Dimensions Weight Mounting Temperature Characteristics Recommended Operating Environment Temperature Control Operating Temperatures Safety System Primary Over temp Alarm Secondary Over temp Alarm Over current Monitoring PortA PortB Over current Protection Electrical Characteristics Leakage Current Power Consumption Power Cord Device Ratings Fuses 29 21 cm high x 13 97 cm deep x 19 69 cm wide 11 5 high x 5 5 deep x 7 75 wide 3 6 kg 8 0 Ib Can be clamped to an IV pole 15 C to 25 C Micro processor Average temperature at the Warming Blanket High 43 1 0 C 109 4 1 8 F Medium 40 1 0 C 104 1 8 F Low 37 1 0 C
11. ast 30 Electrical fast 2 kV for power supply lines 2 kV for power supply lines Mains power quality should be that of a transient burst AKV tornon sinit ETEV Tor noutout typical commercial or hospital IEC 61000 4 4 kA TOF INPUUOUPRUE KAOT INPUVOHIPUE environment lines lines Mai lity should be that of Surge 1 kV line s to line s 1 kV line s to line s e a ave IEC 61000 4 5 2 kV line s to earth 2 kV line s to earth 9P P environment Voltage dips short interruptions and voltage variations on power supply input lines IEC 61000 4 11 lt 5 Ut gt 95 dip in Ut for 0 5 cycle 40 Ur 60 dip in Ur for 5 cycles 70 Ut 30 dip in Ur for 25 cycles lt 5 Ut gt 95 dip in Ut for 0 5 cycle 40 Ur 60 dip in Ur for 5 cycles 70 Ut 30 dip in Ur for 25 cycles Mains power quality should be that of a typical commercial or hospital environment If the user of the Hot Dog Patient Warming System requires continued operation during power mains interruptions it is recommended that the Hot Dog Patient Warming System be powered from an uninterruptible power So eUT SSAU supply or a batte gt 95 dip in Ur gt 95 dip in Uz PEY y for 5 sec for 5 sec Power frequency Power frequency magnetic fields 50 60 Hz l 3 A m 3 A m aroud be a levels characteristic ora magnetic field typical location in a typical commercial IEC 61000 4 8
12. d amount of time ischemia can occur at points of elevated pressure which can lead to tissue necrosis Warming Hot Dog Patient Warming System Service Manual Page 5 ischemic tissue is contraindicated therefore precautions should be taken when using the Hot Dog blankets under a patient The Hot Dog warming blanket IS NOT a pressure reduction device When using blankets under a patient ensure that adequate steps are taken to mitigate pressure Hard objects should not be placed between the patient and the blanket If a rigid cautery ground plate is used ensure that adequate steps are taken to mitigate pressure Do not place the cautery plate on the sensor area of the blanket The cautery plate must not be larger than the patient i e the patient must completely cover the cautery plate PRECAUTIONS Monitor the patient s vital signs regularly during warming according to institutional protocol If vital sign instability occurs notify the clinician Do not use the highest heat setting on or under patients with poor perfusion Use over body warming instead of under body warming on patients with multiple risk factors such as short hair poor circulation severe illness that may impact circulation or long duration procedures gt 2 hours Do not expose the warming blanket to a continuous exchange of cold irrigation fluids INSTRUCTIONS FOR USE When using the Hot Dog Blanket over the patient Use on warmest setting appropriate to
13. ed The customer or the user of the Hot Dog Patient Warming System can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment transmitters and the Hot Dog Patient Warming System as recommended below according to the maximum output power of the communications equipment Separation distance according to frequency of transmitter Rated maximum output m power of transmitter 150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2 5 GHz WwW d 1 2VP d 0 35VP d 0 74P 0 01 0 12 0 04 0 07 0 1 0 37 0 11 0 22 1 1 2 0 35 0 70 10 3 7 1 1 2 2 100 12 3 5 7 0 For transmitters rated at a maximum output power not listed above the recommended separation distance d in metres 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 Manufactured by Augustine Biomedical Design 6581 City West Parkway Eden Prairie MN 55344 USA TEL 952 465 3500 FAX 952 465 3501 www augbiomed com Hot Dog is a trademark of Augustine Biomedical Design
14. ence a All lights illuminate briefly b The Mains Power ON light remains illuminated while the other lights illuminate one by one in the following order 1 Temperature in Range Alarm A 43 2 3 Alarm B 4 5 40 Hot Dog Patient Warming System Service Manual Page 12 6 37 c All ofthe lights will illuminate simultaneously and then the unit will emit an audible tone d After the sequence completes only the Mains Power ON light remains illuminated If this sequence varies or is incomplete contact Technical Support see page 21 Hot Dog Patient Warming System Service Manual Preventive Maintenance Frequency These checks should be completed once every 12 months or more frequently if required by hospital guidelines Tools Equipment Test fixture REF A104 or A115 Warming Blanket Cable REF HDPC1 A101 or A102 Ground continuity tester l 2 Perform the following tests on the Controller per standard institutional protocol note the equipotential stud on the back of the Hot Dog Controller may be used as a 3 Perform Functional Testing using either Method A or Method B described on the Leakage current tester Calibrated fast reacting thermocouple and meter Hot Dog Warming Blanket optional Method Perform Verification of Start up Sequence testing see page 11 grounding point for these tests A Ground continuity B Connect a Blanket to the Controller and test
15. he A alarm light should be illuminated and an audible alarm should sound Release the button and the alarm state should be latched Unplug test fixture cord to clear the alarm Hot Dog Patient Warming System Service Manual Page 15 Functional Testing Method B Alternate Use a Hot Dog Warming Blanket to perform the steps outlined below If a failure is observed during any of these steps contact Technical Support see page 21 1 Tape a calibrated fast reacting thermocouple to the patient facing black surface of the Warming Blanket directly on the sensor area of the Warming Blanket The sensor area on the blankets is marked by a series of circles and the word Sensor 2 Turn the Mains Power Switch to the ON position Supply power to the Warming Blanket by connecting the Warming Blanket power cable to the Controller The Controller will emit an audible tone and the Mains Power ON light will illuminate No other lights should be illuminated 3 Place the blanket with the black side up on a table or other flat surface Select the temperature to be verified by pressing the temperature select button on the controller until the desire temperature setpoint light is illuminated If checking all set points start with the low temperature setting Wait for the blanket to reach the setpoint as indicated by the Temperature In Range light on the controller This should take 3 to 7 minutes at normal room temperature of 20 24 C 4 Fold
16. ies with the EMC requirements according to IEC 60601 1 2 Radio transmitting equipment cellular phones etc shall not be used in the close proximity of the device since this could influence the performances of the device Particular precaution must be considered during use of strong emission sources such as High Frequency surgical equipment and similar so that e g the HF cables are not routed on or near the device If in doubt contact a qualified technician or your local representative Hot Dog Patient Warming System Service Manual Page 24 EMISSIONS AND IMMUNITY The Hot Dog Patient Warming System needs special precautions regarding EMC and needs to be installed and put into service according to the EMC information provided in Table 2 through Table 4 below Warning e Accessories and cables other than those specified may result in increased emissions or decreased immunity of the Hot Dog Patient Warming system e The Hot Dog Patient Warming System should not be used adjacent to or stacked with other equipment If adjacent or stacked use is necessary the Hot Dog Patient Warming System should be observed to verify normal operation in the configuration in which it will be used Table 2 Guidance and manufacturer s declaration electromagnetic emissions The Hot Dog Patient Warming System is intended for use in the electromagnetic environment specified below The customer or user of the Hot Dog Patient Warming
17. intenance activities in accordance with the instructions in this service manual Hot Dog Patient Warming System Service Manual Page 7 INITIAL SETUP amp ASSEMBLY Contents The following components are included in the Hot Dog Patient Warming System box Hot Dog Controller Mains power cord Warming Blanket power cord IFU Service Manual Reusable Hot Dog Warming Blankets are sold separately Assembly Procedure 1 Remove all items from the box and discard packaging per institutional protocol 2 Loosen and remove the two cord retainer screws and the cord retainer see Figure 1 the cord retainer is located on the back of the Controller 3 Firmly insert the mains power cord into the receptacle on the back of the Controller 4 Place the cord retainer over the strain relief of the mains power cord replace both screws and tighten to secure the cord retainer see Figure 1 Figure 1 Cord Retainer Assembly Hot Dog Patient Warming System Service Manual Page 8 Mounting the Hot Dog Controller to an IV Pole To mount the Hot Dog Controller to an IV pole place the Controller IV pole adapter around the IV pole and turn the clamp handle clockwise until securely tightened To remove the Controller from the IV pole turn the clamp handle counterclockwise until the unit releases See Figure 3 Caution To prevent the IV pole from tipping the Controller must be attached at a height that provides stabilit
18. ity of equipment marked with the following symbol C NOTE 1 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 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 Hot Dog Patient Warming System is used exceeds the applicable RF compliance level above the Hot Dog Patient Warming System should be observed to verify normal operation If abnormal performance is observed additional measures may be necessary such as reorienting or relocating the Hot Dog Patient Warming System gt Over the frequency range 150 kHz to 80 MHz field strengths should be less than 3 V m Hot Dog Patient Warming System Service Manual Page 27 Table 4 Recommended separation distances between portable and mobile RF communications equipment and the Hot Dog Patient Warming System The Hot Dog Patient Warming System is intended for use in an electromagnetic environment in which radiated RF disturbances are controll
19. leakage current to ensure the maximum leakage current does not exceed the requirements in Table 1 Table 1 Maximum Allowable Leakage Current Current Polarity Condition mA Normal Normal 0 1 Reversed Open Ground 0 5 Open Neutral 0 5 Open Ground amp Open Neutral 0 5 following page Hot Dog Patient Warming System Service Manual Page 14 Functional Testing Method A Preferred Use a Temperature Test Fixture REF A104 or A115 to perform the steps outlined below The Test Fixture simulates a Warming Blanket that is operating at 43 C Ifa failure is observed during any of these steps call customer service 1 Using a standard blanket cable REF HDPC1 A101 or A102 connect the test fixture to the Controller The Controller will emit an audible tone and the Mains Power ON light will illuminate No other lights should be illuminated on the Controller Press the Temperature Adjust button on the Controller to select 43 C The 43 C and the Temperature in Range lights should both illuminate The heater indicator light may flash intermittently or not at all which is normal Press the Temperature Low button on the test fixture to simulate a cold warming blanket The Temperature in Range light should go off and the light at the top of the test fixture should illuminate to indicate that power is being applied to the test fixture the alternating on off shows the duty cycle applied by the Control
20. ler Release the button and the Controller should return to in range as described in step 2 Press the Temperature High button on the test fixture to trigger the primary over temperature alarm The A alarm light should be illuminated and an audible alarm should sound Release the button and the Controller should return to in range as described in step 2 Press the Primary Short button on the test fixture to simulate a shorted primary sensor The A alarm light should be illuminated and an audible alarm should sound Release the button and the Controller should return to in range as described in step 2 Press the Primary Open button on the test fixture to simulate an open primary sensor The A alarm light should be illuminated and an audible alarm should sound Release the button and the alarm state should be latched Unplug test fixture cord to clear the alarm Plug the test fixture cord back in to prepare for the next step Press the Secondary Open button on the test fixture to simulate an open secondary sensor The A alarm light should be illuminated and an audible alarm should sound Release the button and the alarm state should be latched Unplug test fixture cord to clear the alarm Plug the test fixture cord back in to prepare for the next step Press the Secondary Short button on the test fixture to simulate a shorted primary sensor or secondary over temperature T
21. ng a Warming Blanket to the Controller disconnect the Warming Blanket and replace it with another Warming Blanket Port B Applies to Model V004 Controllers only Port B is a 48V output for Hot Dog accessories Alarm Port B Applies to Model V004 controllers only Hot Dog Patient Warming System Service Manual Page 11 If the accessory attached to Port B exceeds the pre set current threshold an audible alarm sounds and the Alarm Port B light illuminates red Power is removed from the port Disconnect the accessory from Port B to reset alarm e If Alarm Port B occurs when connecting an accessory to the Controller disconnect the accessory and replace it with another accessory e If Alarm Port B occurs during use and the Alarm Port B light illuminates steadily disconnect the accessory from the Controller and replace with another accessory MAINTENANCE amp TESTING Verification of Start up Sequence Frequency These checks should be completed upon initial equipment check in and once every 12 months or more frequently if required by hospital guidelines Tools Equipment e Standard IV pole or vertical pole Method 1 Mount the Controller on a standard IV pole or vertical pole 2 Do NOT attach a Warming Blanket to the Controller 3 Insert the Hot Dog Controller power plug into a properly grounded hospital grade electrical outlet 4 Turn the Mains Power Switch to ON and carefully observe for the following proper start up sequ
22. nts e g MEK acetone etc to clean Hot Dog components Solvents may damage plastic parts labeling and product finish Method 1 Disconnect the patient warming controller from the power source before cleaning 2 Wipe unit with moistened sponge or soft cloth avoid pushing fluids into any openings 3 Dry with a separate soft cloth Cleaning of the Warming Blankets Refer to separate cleaning instructions provide with the Warming Blankets Hot Dog Patient Warming System Service Manual Page 18 Troubleshooting Alarm Mode Description Primary over temp When the temperature exceeds one degree above nominal including tolerances audible and visual alarms are initiated and power is removed from the output The alarm will reset when e Temperature is within acceptable limits 1 C e Cable connecting Warming Blanket to Controller is disconnected e Power is removed at mains Secondary over temp When the temperature exceeds 46 C audible and visual alarms are initiated The alarm will reset when e Cable connecting Warming Blanket to Controller is disconnected e Power is removed at mains Over current When current draw exceeds a predetermined level audible and visual alarms are initiated The alarm will reset when e Power is removed at mains Failure to reach temp When the system does not achieve 43 C within 10 minutes audible and visual alarms are initiated The alarm will reset when e C
23. the Warming Blanket back on itself black face to black face so that the thermocouple is between the two layers of the heated Blanket Ensure that the Blanket layers are pressed together in the location of the thermocouple Place a 750 to 1000gm weight such as a small book or notebook over the sensor location to ensure that the pad remains folded and that there is good contact between the sensor and the folded blanket See figure 6 THERMOCOUPLE READER Hot Dog Patient Warming System Service Manual Page 16 Figure 6 Warming Blanket Testing configuration 5 Allow the temperature to stabilize for 3 minutes NOTE a slight temperature overshoot may be noted during this time which is normal After 3 minutes have elapsed check the reading of the thermocouple The temperature should be within 1 C of the set point temperature including the additional tolerance of the thermocouple meter which is usually 1 C 6 Repeat steps 3 6 for the next temperature setting if required Hot Dog Patient Warming System Service Manual Page 17 Cleaning of the Controller Housing Frequency As needed Tools Equipment e Sponge or soft cloth e Mild detergent or anti microbial spray e Dry soft cloth Warning Do not use a dripping wet cloth and do not immerse Hot Dog components in liquid Moisture will damage the components and thermal injury may result Precautions Do not use pure alcohol or other caustic chloro or flouro solve
24. tional information about the Hot Dog Controller and Warming Blankets refer to the Instructions for Use provided with each of these components VETERINARY INSTRUCTIONS FOR USE INDICATIONS FOR USE The Hot Dog Patient Warming System is intended to prevent or treat hypothermia and to provide warmth to patients The Hot Dog Patient Warming System should be used in circumstances in which patients may not maintain a state of normothermia CONTRAINDICATIONS Do not warm patients with ischemic or non perfused limbs thermal injury may result WARNINGS Do not layer multiple warming methods i e a hot dog blanket should not be used under a patient in combination with a heated surgical table or a hot water mattress EXPLOSION HAZARD Do not use the Controller or Warming Blanket in the presence of flammable anesthetics or highly oxygen enriched environments such as hyperbaric chambers oxygen tents etc Inspect the Warming Blanket prior to use and cleaning for signs of damage or excessive wear such as cuts holes or loose electrical connections If signs of wear are evident do not use the Warming Blanket until it is inspected by technical staff Do not expose the inner heating element to fluids Do not continue to use the Hot Dog Patient Warming System if the over temperature indicator and or alarm continue to sound after reset See alarm section of this manual Pressure reduction When a patient remains in a single position for an extende
25. unit is ON and idle i e no Temperature Setting lights are illuminated no power is applied to the Warming Blanket and no alarm conditions are indicated Temp Adjust Button Temp Setting Lights Press the Temperature Adjust Button until the desired high 43 C medium 40 C or low 37 C temperature is selected as indicated by the illuminated Temperature Setting light The designated warming temperature will be reached within 5 minutes Temp in Range Light The green Temperature in Range light will illuminate when the temperature of the Warming Blanket is 1 C of the selected temperature setting PortA Port A is only to be used for Hot Dog Warming Blanket connection When plugging a Warming Blanket into the Controller an audible beep indicates that the control and over temperature sensors safety device are present and functioning properly Alarm Port A If the Warming Blanket exceeds one degree above nominal including tolerances or other fault conditions exist an audible alarm sounds and the Alarm Port A light illuminates red The Controller will automatically discontinue power to the Warming Blanket When the operating temperature is regained the alarm will shut off and normal function will be restored If the Alarm Port A light illuminates steadily and the alarm continues to sound turn the Mains Power Switch to the OFF position and disconnect the Warming Blanket from the Controller e If Alarm Port A occurs when connecti
26. y It is recommended to use an IV pole with a minimum wheelbase radius of 35 6 cm 14 in and to mount the Controller no higher than 112 cm 44 in from the floor Failure to properly mount the Controller may result in IV pole tipping catheter site trauma and patient injury Figure 3 Hot Dog Controller Mounted on an IV Pole Hot Dog Patient Warming System Service Manual Page 9 OVERVIEW OF CONTROL PANEL amp OPERATING MODES Figure 4 Hot Dog Control Panel ON OFF Power LED Temperature In Range LED Temperature Adjust Button Temperature Setting Indicator 3 Alarm Port A LED Alarm Port B LED Port A Outlet Warming Blanket Port B Outlet Accessory Option Serial Label IV Pole Clamp Mains Power Switch Power Plug and Inlet fuses inside Cord Retainer optional Cord Strap A B C D E F G H I J K L M N Hot Dog Patient Warming System Service Manual Page 10 Mains Power Switch ON Power Light When the Hot Dog Controller is plugged into an electrical outlet and the Mains Power Switch on the back of the Controller is turned ON the Controller will beep and all lights will illuminate briefly The Mains Power ON light will illuminate and the Controller will remain idle until a temperature is selected with the Temperature Adjust Button If there is a loss of power to the Controller the unit will return to ON when power is returned When the
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