- Frank`s Hospital Workshop
Contents
1. Fuse sec Fuse prim BW685_V7 9 A 2 El HIG lak m L6 MD i _ VREG g 3 MET L N ES UJ si W 9 Ou LED43 LED14 600 O Y 9 LIT I M i A E a a zZ S 1425 Vi 8 L4 lt F o LED41 LED13 LED42 ft g S 5 e OO oni S t LED39 LED12 LED40 h ias OT xl 5 Ra LED37 LEDH LED38 Ic2 cr L c17 mm 4 2 VA gt K 10 te 5 7 LED35 LED10 LED36 LI 8 J A s LL _ T1 p N LED33 LED9 LED34 E l SB LE Ri GD OO oo S Z e 5 o la i LED8 es 39 5 L 2 mo ai 19 Vv DA ea 9 LS oO G 39 ee Uj a LED27 LED6 LED28 LI ET less 11 p s 8 pp i U7 U6 LED25 LEDS LED26 aaas R a HU Los CH LED23 LED LED NY LI 375 LLI CON2 Far I 8 g LED21 LED3 Lo CONS n I 0 Y L 37 1 i S NI H MUS os oe ae je los 36 5 en TP4 LED17 LED1 LED18 CU s Fig2. 8 Maintenance Testing Instructions IMPORTANT Voltage They are performed using the safety tester GERB GM 100 and the test programme BLUTW 1 The protocol is stored in the PC INSPECTION OF THE FUSES IN PLACE Necessary only after repair carried out The fuse inserts must be especially tested during maintenance work For this device either of the following may be used primary BW685 230V 1 6 AT secondary all BW 685 500 m AT Page 17 BW 685 Service Instructions July 2007 BICGLCf MCEDIZINGLCHCrOnin MAINTENANCE AND INSPECTION PROTOCOL FOR BW 685 Device no aaa aa nana enen enen en vesess Date aaa nane na e suscsss 230V Print number 0cceceeee These tests require a precise knowledge of the associated maintenance testing instructions EVALUATION TARGET FUNCTION OK not OK Value 4 m U 1 Long term test 2 Operational readiness at room temp 3 Overtemperature cut off 4 Low temperature l A Internal to BIEGLER Cut off Target lt 36 5 C only 5 High voltage Target 1 5 kV 1 minute Urs to BIEGLER 6 Electrical fuse resistance 6 2 Replacement current 6 3 Replacement current 7 Fuse insert Only after repair carried out 8 Mechanical condition Dirt A Target lt 42 5 C 10 Verification of labels Signature of the inspecting personnel Page 18 BW 685 Service Instructions July 2007 BICGLCf MCHDIZING
3. 7 Assembly diagram for conductor board Page 26 BW 685 Service Instructions July 2007 BICGLCf MCHDIZINGLCHtrOonin MANUFACTURER S DECLARATION The blood and infusion warmer BW 685 BW 685 S is a medical product as defined by Directive 93 42 EEC This is documented by attaching the CE mark Notified Body TUV Product Service Approval Number CE0123 MANUFACTURER D IGG LGT M DHDIZINCLCHtronikK Biegler GmbH Allhangstrasse 18a 3001 Mauerbach Austria Tel 43 1979 21 05 Fax 43 1979 21 05 16 Email office biegler com www biegler com Page 27 BW 685 Service Instructions July 2007
4. inc set temp step 0 1 C low temperature test overtemperature test LED test testmode 2 no alarms testmode 1 heater 42 5 C back to normal operation after testmodes TubeFlow on TubeFlow off relais test service remote service remote service remote service remote service remote service remote service remote service remote service remote service remote service remote debugging calibration calibration calibration calibration calibration service info service info debugging debugging debugging service service service service service service service remote service remote service BW 685 Service Instructions BICGLCf MCEDIZINGLCHCrOnin Output headline description usage target setting temperature service ISL V meas temp front service ist h meas temp rear service reg temp value used for regulation debugging mean mean temperature used for display service eN diff settingjmeas temp debugging I gt S diff meas setting temp debugging P heat output debugging temp slew rate debugging error counter debugging low temp Inhibit alarm timer debugging correction value front service correction value rear service Page 12 BW 685 Service Instructions July 2007 example of BVV685 ASCII output 38 5 38 5 38 5 38 6 38 5 38 6 38 5 38 6 soll ist_v 38 5 38 6 38 5 38 6 38 5 38 6 38 5 38 6 38 5 38 6 38 5 38 6 38 5 38 6 Standby 38 5 38 6 38 5 38 6 38 5 38 6
5. 00 Rel tol 0 00 Measurement unit VOLT Target 230 Threshold 0 00 Interval tol 0 00 Rel tol 0 00 BW 685 Service Instructions July 2007 BICGLCf MCEDIZINCLCHCrOnik REPLACEMENT PARTS LIST BW 685 Biegler ID Three cornered grip M5 complete Fuse T 500 mA CE 1200500 Page 22 BW 685 Service Instructions July 2007 BICGLCf MCHDIZINGLCHtrOnin GA6004546 GZ5200201 Disconnect device from mains before opening Fig 2 Opening of the BW 685 BW 685 S Page 23 BW 685 Service Instructions July 2007 BICGLCf MCEDIZINGLCHCrOnin U IR1000685 h ve U I IPOOO685 gt A Pressing fixture Silicone tube Fig 4 Bimetal safety temperature limiter 45 3 C Self resetting at room temperature Page 24 BW 685 Service Instructions July 2007 BICGLCf meDIZINGLGHUONIH O O O LZ
6. July 2007 BICGLCf MEDIZINGCLEGCHEFOCNIH 2 Symbols Used Certifies compliance with the Directive 93 42 EEC 0123 Observe the instructions for use Do not dispose of this product as unsorted municipal waste Control for increasing the temperature setting Control for decreasing the temperature setting Humidity Classes v X iN Degree of protection B Control for switching On Standby for optional tube warmer Tubeflow Operation L Malfunction PS Do not cover PS Do not wrap up Se Do not expose to direct X suniight Do not cut Page 4 BW 685 Service Instructions July 2007 BICGLCf MCHDIZINGLCHtrOnin 3 Safety Instructions The manufacturer assembler installer or importer is considered responsible for the device s effect on safety reliability and performance only if the device is used in compliance with the instructions for use the electrical installations in the affected rooms comply with the existing special technical regulations modifications repairs or new adjustments have been or are only performed by Biegler or authorized personnel only original replacement parts from Biegler are used for repairs applies also for the mains power cord After the buzzing tone sounds or the red alarm light lights up the infusion or transfusion tube must be removed immediately from the warming cylinder The infusion or transfusion solution may no longer be used on the patient In
7. be issued by BIEGLER in the form of supplementary sheets and must be added immediately A maintenance test must be conducted after a repair of the BW 685 This is identical to the PERIODIC INSPECTION PERIODIC INSPECTION The periodic technical safety inspections according to the local standards in force e g in Austria OVE ONORM E 8751 1 must be carried out on the BW 685 BW 685 S at least every 12 months by persons able to carry out such technical safety inspections based on their training knowledge and experience gained by practical activities The results of the periodic inspection are to be documented together with the date and the inspecting agency in the inspection protocol provided Important Should a malfunction be evident during the periodic inspection suitable warning signs should be attached to the device to ensure that it cannot be used before necessary service and repair work has been carried out CHECKING THE WARM UP PERIOD This is the time taken by the BW 685 BW 685 S to heat up to 38 5 C from room temperature The device is malfunctioning if it takes much longer than one minute CHECKING THE CONTROL TEMPERATURE The control temperature is checked on the groove bed of the heat exchanger The sensor of a Suitable contact thermometer tolerance 0 15 C is fixed to this position e g by using a piece of infusion tubing The examination is performed at a temperature setting of 38 5 C The measured value is
8. the event of any suspected malfunction while in operation the device should be immediately removed from service and not used for infusions or transfusions until appropriate investigations have demonstrated that there has been no impairment If the high temperature alarm is triggered the supply of liquid to the patient must be immediately stopped by disconnecting the connection tube to the patient The medium being used in the device must no longer be administered to the patient The device may only be fastened to infusion stands tripods or equipment rails which are suitable due to their stability and load capacity Only sterile consumables prescribed by BIEGLER may be used in conjunction with the BW 685 BW 685 S The device must only be used in areas in which the electrical installations are in accordance with the standards and regulations in force Safe disconnection from the mains power supply can only be achieved by unplugging the mains plug The device may not be used in rooms subject to explosion hazard Repairs and modifications to the device may only be carried out by persons or service centres authorised by BIEGLER Page 5 BW 685 Service Instructions July 2007 BICGLCf MCnIZINCLehtroniA e The device must not be immersed in liquids or sterilised with steam or by thermochemical methods e All extraneous influences such as electromagnetic waves or high temperatures are to be kept to a minimum e The system may malf
9. tol 0 00 Rel tol 0 00 Housing leakage current S F C PE open The testing tip is held on conductive housing parts of the device to be tested Do not create any additional bond to the device to be tested No testing tip is necessary Mains switch ON Measurement unit JA Target 0 00 Threshold lt 500 Interval tol 0 00 Rel tol 0 00 Measurement unit JA Target 0 00 Threshold lt 500 Interval tol 0 00 Rel tol 0 00 BW 685 Service Instructions July 2007 GERBO19 be tested GERBO20 GERBO21 GERB001 Page 21 BICGLCf MCDIZINGLCHtrOonin BLUTW1 Test Procedure Electrical Safety Replacement leakage current according to Figure 9 according to VDE 0751 The network voltage is used as the test voltage on the network connection of the device to The current that flows from the housing to the earth is measured The replacement leakage current cannot be greater than 1 5 times the first measured value and at the same time greater than the threshold value of 750 LA Mains switch ON Measurement unit JA Target 0 00 Threshold lt 750 Interval tol 0 00 Rel Tol 0 00 Measurement unit JA Target 0 00 Threshold lt 750 Interval tol 0 00 Rel Tol 0 00 Replacement device leakage current in the earth conductor according to VDE 751 An internally generated test voltage in the amount of the network voltage is applied to the connected network connections of the object to be tested The current that flows from the
10. 0 00 00 w w W W U UUU L gt 5 00 1 00 1 00 1 00 1 00 1 00 1 00 0 I gt S 00 00 00 00 e RF O O BICGLCf MCEDIZINGCLCHErOnin 008 000 000 085 000 020 006 001 000 084 0 0 20 0 004 001 000 083 40 0 0 0 004 000 000 082 40 0 0 0 S err t kor v kor h 004 000 000 081 40 0 40 0 004 000 000 080 40 0 40 0 7 004 000 000 079 0 0 0 0 004 000 000 078 0 0 0 0 004 000 000 077 0 0 0 0 004 000 000 076 0 0 0 0 004 000 000 O75 0 0 40 0 000 000 000 074 0 0 0 0 000 001 000 073 40 0 40 0 000 000 000 072 40 0 40 0 000 000 000 071 0 0 40 0 000 000 000 070 40 0 40 0 000 000 000 069 40 0 40 0 000 000 000 068 40 0 40 0 000 000 000 067 40 0 40 0 PS S err E kor_v kor b 010 000 000 090 40 0 40 0 010 000 000 089 40 0 40 0 010 000 000 088 0 0 40 0 010 000 000 087 40 0 0 0 010 000 000 086 0 0 40 0 010 000 000 085 40 0 40 0 010 OOO 000 084 40 0 40 0 J S err t kor v kor h 010 000 000 083 40 0 0 0 010 000 000 082 40 0 40 0 1 008 001 000 081 0 0 0 0 008 000 000 080 0 0 40 0 Data start Data Stop Heater on Message Message Message BW 685 Service Instructions used with PS BW685 is in operation mode BW685 is in standby mode Heater starts with 10 power July 2007 BICGLCf MCEDIZINGLCHCrOnin 8 Maintenance Testing Instructions These instructions serve as a reference Any changes that occur will
11. 10B0685 IA1000685 CJ8256700 Fig 5 Connection of the service interface with cable LZ10B0685 CJ4014006 BN1012004 CC1000003 CJ5592072 KN1003001 gt 7 S i p I i f T fi 7 i i U D 7 i i i r Ji 1 Y 1 j i y 1 t L i y i i i H po 1 Ji i 1 J i i i i Hi i H i j i N j J N j i i i 1 j i i i d d l i 1 i i i i d i 1 j i d d f L po i fg i EN IB9000003 Page 25 BVV 685 Service Instructions July 2007 BICGGLCf MCnIZINCLehtroniA Fig 6 BW 685 S
12. 38 5 38 6 38 5 38 6 38 5 38 5 38 5 38 5 38 5 38 5 Operation soll ist_v 38 5 38 5 38 5 38 5 38 5 38 4 38 5 38 4 38 5 38 4 38 5 38 4 38 5 38 4 soll ist_v 38 5 38 4 38 5 38 4 38 5 38 4 38 5 38 4 Description x Betrieb Standby 38 6 38 7 38 8 38 8 ist h 38 8 38 8 38 8 38 8 38 8 38 8 38 8 38 7 38 8 38 7 Bul 3947 38 6 38 6 38 6 38 38 38 38 reg 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 6 J 8 8 CO 0 o 00 00 oO CO Q WD SN N JJ N OO NI 38 38 38 38 es ES Ns 6 mean 38 290 38 38 38 38 38 38 e cj 38 38 38 90 38 38 Y sq 3 SQ OA OAOD YU SQ SQ RQ QY NN JJ 00 00 00 00 S gt I 00 00 00 00 00 00 00 O O O O O O O O O O O 00 00 00 00 00 00 00 00 O oO O O O O O O Heating starts with 010 ist h 38 6 38 6 38 6 38 6 38 6 38 6 38 3 LST H 38 5 38 5 38 6 38 6 reg 38 38 38 38 38 38 38 reg 38 38 38 38 A Ov UO M Heizung start mit 010 Page 13 mean 38 38 38 38 38 38 38 6 6 6 6 6 6 a mean 38 38 38 38 5 5 s s for debugging S gt I 00 00 00 00 00 00 00 S gt I 00 00 00 00 O O O O O O O O O O O 00 00 00 00 I gt S 00 00 00 00 00 00 00 w w N LA CO 40 W W U W WW 00 00 00 00 00 0
13. BICGGLCf MCEDIZINCLCHCrOnik Service Instructions Blood and Infusion Warmer BW 685 BW 685 S Print version BW 685 V 7 Software V 1 5 BW 685 Service Instructions July 2007 BICGLCf MCEDIZINGLCHCrOnin Table of contents Mii AAA 3 Za VIMO OIS US CO rre ns nena naa asc peoaci 4 Dale MSU e pto po 5 c H ASE A A o E E NE E oa T 0 valely SMULGOWN TTT 8 6 Setting the temperature ina aaa ee e e ae e ake eke e eee e eee eren e pe eke eee pene eee eee eee ere 10 eee o e e o A 11 8 Maintenance 1 Testing Instructions eee e e ee ee ee e ee 14 Page 2 BVV 685 Service Instructions July 2007 1 Technical Data BICGLCf MCHDIZINGLCHtrOnin Technical data for BW 685 BW 685 S Device Type designation Voltage Power consumption Protection class Degree of protection Humidity protection Fuses Control temperature Overtemperature shutdown Max system pressure Classification Operational mode Dimensions BW 685 Weight BW 685 Dimensions BW 685 S Weight BW 685 S Tube warmer Tubeflow for BW 685 S Page 3 BW 685 Service Instructions Blood and Infusion Warmer BW 685 1 BW 685 S 230 V 50 Hz 1 5A B IPX4 primary 2 x 1 6 AT secondary 500 mAT 37 C 41 C adjustable in 0 5 C steps 42 C 42 5 C 45 C 3 C 300 mm Hg lib according to Rule 9 Continuous operation WxHxD 228 x 228 x 132 mm 1 9 kg WxHxD 228 x 278 x 132 mm 2 0 kg Length 1340 mm
14. LCHtrOnin The function controls indicated in the operating instructions must be conducted The replacement leakage current cannot be greater than 1 5 times the first measured value and at the same time not greater than the threshold indicated above If the devices are not functionally and or operationally safe they must be repaired or the operator must be informed of the hazard from the device The proper conducting of the tasks listed above and the correctness of the information must be confirmed Comments Technician Operator Date Signature Date Signature Page 19 BW 685 Service Instructions July 2007 BICGGLCf MCnIZINCLehtroniA GERB Elektronik GmbH Page 1 GERBO24 GERBOO3 GERBOOS5 GERBOOS5 GERBOO06 GM 100 GERB009 Page 20 BLUTW1 Test Procedure Electrical Safety Power measurement The effective power use of the device being tested is measured The measurement is limited by time Any time exceeded is indicated Maximum power use 3 5 kVA Care must be taken that the blood warmer is in the warming up phase when this measurement is taken Measurement unit Watt Target 0 00 Threshold 0 00 Interval tol 0 00 tol 0 00 Measurement unit Watt Target 0 00 Threshold 0 00 Interval tol 0 00 tol 0 00 Insulation resistance network protective earth conductor Test voltage 500V over 5 Mohm applied to both phases of the device to be tested The resistance between the phases and the earth co
15. art the warmer s heater and wait until the temperature has stabilised This measurement must only be conducted in draft free rooms to avoid false measurements e Conduct the temperature control The measured temperature should be the same 0 1 C as the temperatures displayed on the monitor actual f and actual r Deviations up to 0 5 C can be compensated for with the commands 15 5 5 and Page 10 BW 685 Service Instructions July 2007 BICGLCf MCHDIZINGLCHtrOnin 7 Service Interface The BW 685 is equipped with a service interface This serial interface provides different measured values that can be very useful during calibration and trouble shooting The BW 685 can be connected directly to a PC or terminal with an appropriate connecting power cable The data can be displayed using an available terminal programme hyperterminal Data format 19 200 n 8 1 Control codes code O ONDOARWNH HOD 5 b e r IO N A O 5 Page 11 description run stop set temp 37 C set temp 37 5 C set temp 38 C set temp 38 5 C set temp 39 C set temp 39 5 C set temp 40 C set temp 40 5 C set temp 41 C set temp 41 5 C heating correction front 0 1 heating correction front 0 1 heating correction rear 0 1 heating correction rear 0 1 all heating corrections 0 reset hour meter display hour meter set temp 42 C dec set temp step 0 1 C
16. beep has ceased release the control dh Press the switch The device now slowly heats up to a target temperature of 42 5 C Observe the temperature display carefully The high temperature alarm should be triggered at a temperature of 42 C For reasons of safety short beeping sounds are given at intervals of a second in this operational mode and the STANDBY indicator Diag 1 4 flashes There is a malfunction if the high temperature alarm is not triggered To reset the alarm either disconnect the mains plug and allow the device to cool and then start up again or reset the alarm using the service interface VISUAL CHECK OF GENERAL CONDITION The device should be checked for mechanical damage general mechanical condition and for the completeness of the front film layer sticker information particularly the device label on the reverse There is a malfunction if mechanical damage to the device is evident which could be harmful or impair the functional operation of the device Also the device must not have any dirt on it that might impair safety ELECTRICAL SAFETY All relevant electrical safety data should be checked particularly the earth conductor resistance Target lt 0 3 Ohm and leakage current Target lt 0 75 mA There is a malfunction if there is a measured value outside the tolerances These tests must be conducted at the operating temperature Page 16 BW 685 Service Instructions July 2007 BICGLCf MCHDIZINGLCHtrOnin
17. connected female part of the object to be tested to the earth is measured as well as the current that flows from the earth connector to the ground The replacement leakage current cannot be greater than 1 5 times the first measured value and at the same time not greater than the threshold of 750 LA Mains switch ON Measurement unit JA Target 0 00 Threshold lt 750 Interval tol 0 00 Rel tol 0 00 Measurement unit JA Target 0 00 Threshold lt 750 Interval tol 0 00 Rel tol 0 00 Replacement device leakage current according to VDE 751 An internally generated test voltage in the amount of the network voltage is applied to the connected network connections of the object to be tested The current that flows from the connected female part of the object to be tested to the earth is measured as well as the current that flows from the housing to the ground The testing tip of the safety tester is held to the fastening clamp on the device to be tested The replacement leakage current cannot be greater than 1 5 times the first measured value and at the same time not greater than the threshold of 750 pA Mains switch ON Measurement unit JA Target 0 00 Threshold lt 750 Interval tol 0 00 Rel tol 0 00 Measurement unit JA Target 0 00 Threshold lt 750 Interval tol 0 00 Rel tol 0 00 Network voltage test The effective value of the network voltage is measured Measurement unit VOLT Target 230 Threshold 0 00 Interval tol 0
18. e put back into operation after cooling This type of shutdown may also activate if the device is stored in the vicinity of strong heat sources or exposed to direct sunlight BW 685 Service Instructions July 2007 BICGLCf MCHDIZINGLCHtrOnin 5 Safety Shutdown 37 C low temperature alarm This alarm cannot active until 60 seconds after switching on the device If the temperature of the heat exchanger is less than 36 5 C the user will be notified by the low temperature alarm both optically and acoustically The alarm is signalled by the blinking of the STANDBY display and an intermittent beep This alarm resets automatically if the temperature rises again to 37 C the alarm stops If a type of shutdown is activated the device must be tested immediately and repaired if necessary Page 9 BW 685 Service Instructions July 2007 BICGLCf MCEDIZINGLCHCrOnin 6 Setting the temperature e Start the terminal software e Connect the BW 685 with the computer or terminal RS 232 using the connecting power cable LZ 10B0685 Biegler ID e The monitor must now display data output as described in section 7 Service Interface e Attach a suitable temperature probe 0 5 mm in the middle of the heating ring on the upper side with a piece of infusion tubing in such a way that the temperature can be measured on the groove bed e Send the command to the BW685 to set the correction factors of both sensors to 0 e St
19. film layers becomes detached Page 6 BW 685 Service Instructions July 2007 BICGLCf MCHDIZINGLCHtrOonin e the device has been exposed to a hard physical shock e g dropped hit or shaken e the device has been immersed in water e the device has triggered a high temperature alarm that was not caused by external factors e the mains power cord or plug is damaged e the device has given somebody an electric shock the fixing clamps are damaged and no longer assure safe clamping to the infusion stand Should a malfunction be evident suitable warning signs should be attached to the device to ensure that it cannot be used before necessary service and repair work has been carried out 4 Warranty Biegler Medizinelektronik provides a warranty for this device for a period of two years from the purchase date This warranty applies for defects in materials and workmanship and includes both replacement parts and labour The activated warranty requires that an invoice or proper receipt be presented and that the warranty claim be made within the warranty period The warranty expires if the device has been damaged not used or maintained properly according to the instructions for use or unauthorized repairs or alterations have been made Page 7 BW 685 Service Instructions July 2007 BICGLCf MCEDIZINGLCHCrOnin 5 Safety Shutdown 42 C software alarm Switch device on Preheat the BW to 41 C and wait for the tempera
20. nductor is measured Mains switch ON Measurement unit MOhm Target 0 00 Threshold gt 2 00 Interval tol 0 00 tol 0 00 Measurement unit MOhm Target 0 00 Threshold 2 00 Interval tol 0 00 tol 0 00 Earth conductor resistance Test voltage 6V max 25A at the connection of the testing tip The testing tip must be held on the warming ring The test is limited by time If the time is exceeded this will be displayed on the monitor Measurement unit MOhm Target 0 00 Threshold lt 0 30 Interval tol 0 00 Rel tol 0 00 Measurement unit Ohm Target 0 00 Threshold lt 0 30 Interval tol 0 00 Rel tol 0 00 Earth conductor resistance Test voltage 6V max 25A at the connection test peak The testing tip must be held on the fastening clamp The test is limited by time If the time is exceeded this will be displayed on the monitor Measurement unit Ohm Target 0 00 Threshold lt 0 30 Interval tol 0 00 Rel tol 0 00 Measurement unit Ohm Target 0 00 Threshold lt 0 30 Interval tol 0 00 Rel tol 0 00 Earth leakage current N C The earth leakage current is measured under operating conditions No additional grounding connection is allowed to be established between the safety testing device and the device to be tested No testing tip is necessary Mains switch ON Measurement unit JA Target 0 00 Threshold lt 500 Interval tol 0 00 Rel tol 0 00 Measurement unit JA Target 0 00 Threshold lt 500 Interval
21. read after it has stabilized The difference must not exceed 0 5 C There is a malfunction if a difference from the control temperature of greater than 0 5 C is obtained Page 14 BW 685 Service Instructions July 2007 BICGLCf MCHDIZINGLCHtrOonin 8 Maintenance Testing Instructions LONG TERM TEST e Start up at 38 5 C e Measure the temperature on the heat exchanger after about 15 min e Measure the temperature again after 24 hours The initial value after 15 minutes and the end value after 24 hours must not lie outside of tolerance range the measurements must always be made under the same environmental conditions The end value may deviate from the initial value by 0 5 C 38 Ne y Contact thermometer Fig 1 Measurement Set up e Attach a suitable temperature probe 0 5 mm in the middle of the heating ring on the upper side with a piece of infusion tubing in such a way that the temperature can be measured on the groove bed Measuring device used TESTO Contact Thermometer 935 Precision 1 digit Type K 210 7 C 20 5 from the measured value Page 15 BW 685 Service Instructions July 2007 BICGGLCf MChnIZINCLehtroniA INSPECTION OF THE OVERTEMPERATURE ALARM Software Preheat the device to 41 C and wait for the temperature to stabilise then disconnect the mains plug Hold down the control and reconnect the mains power plug After the
22. ture to stabilise Disconnect the mains plug Hold down the control T and reconnect the mains power cable Press the control Operation Standby the device now slowly heats up to a target temperature of 42 5 C Observe the temperature display carefully The high temperature alarm should be triggered at 42 C for reasons of safety short beeping sounds are given at intervals of a second in this operational mode the LEDs of the STANDBY indicator also flash alternating with each other 42 5 C hardware alarm Important Testing of the hardware alarm can only be conducted with the service cable LZ10B0685 e Connect the blood warmer to the computer and start a terminal programme e Switch the blood warmer on and preselect 41 C on the device e Allow the BW to warm up about 1 minute e Press the e key on the computer The blood warmer is now in set mode This is signalled by the blinking of the STANDBY indicator and a beep With the software alarm deactivated the device now heats up to a temperature of 45 C The hardware temperature shutdown must be active at 42 5 C 0 5 C 45 C overtemperature cut out Page 8 If for any reason the first and second electronic safety shutdowns do not activate then the heat exchanger will be shut off by an automatic resetable thermal cut off at a temperature of 45 C After the heat exchanger cools the electronic shutdown must be tested If this test is positive the device can b
23. unction due to the effect of strong electromagnetic fields e g by HF therapy or surgical devices The warmer works perfectly within the limit values of the Standard EN 60601 1 2 The system can be affected by limit values that do not comply with the Standard EN 60601 1 2 e Avoid exerting force on the device or its accessories e If the device is dropped damaged by force or if it shows a function deviating from the instructions for use stop using the device immediately and return it to the service centre e The periodic technical safety inspections must be carried out see the section Periodic inspections Supplementary safety instructions for the accessory tube warmer Biegler Tubeflow BW 685 S e The Biegler Tubeflow may only be clamped to the Biegler blood warmer BW 685 S with the fixing clamp according to the diagram in the chapter of the instructions for use Initial operation e Do not kink cover warm or cool the Biegler Tubeflow Do not cover the Tubeflow with cloths or dressing material Do not lead under blankets warm air blankets etc Do not expose to direct sunlight or heat radiation Lead the Tubeflow through the air unencumbered Do not lead into or through incubators Overwarming of the warmed liquid or burns to the patient cannot to be excluded in the case of non compliance e Do not shorten or damage the Biegler Tubeflow The BW 685 BW 685 S may not be used if e the housing is damaged or one of the front
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