Emergency Warmer ESH 04 Service Manual
Contents
1. LIGOGLCI MCHDIZINCLCHErOnikK Emergency Warmer ESH 04 Service Manual Table of Contents Technical Information safety Information Warranty Alarms Safety Shut Off Circuit Schematics and Layouts Block Diagram Parts Lists Test Sheet and Test Log Procedure Safety Checks Spare Parts Pee uo eM AYA July 2004 ESH 04 Service Documentation 5 6 7 12 13 14 18 19 24 25 26 Page 2 1 Technical Information Technical Information ESH 04 Type designation Rated voltage Line frequency Power consumption Operating temperature Emergency shut off Moisture protection Protection against electrical shock Degree of protection against electrical shock Dimensions Weight Class Operating mode ESH 04 12 VDC 100V 240VAC power supply 50 60 Hz power supply max 20W 37 C double IPX 4 splash protection built in rechargeable battery pack B WxDxH 190x120x320 mm 1 3 kg IIa as defined in Rule 9 continuous July 2004 ESH 04 Service Documentation Page 3 2 Safety Information Warranty e The Emergency Warmer may only be used or connected in vehicles if the on board equipment meets applicable standards and regulations The Emergency Warmer must always be hanging when it is in use It may not be used for pressure infusion while it is lying on its side or while it is in an inverted upright position Otherwise there is a risk that air bubbles may form The doctor who is performing tre2. 1lg ONS n OWED MURIS HUWA CL LOL ZRA OLL 2003 yey TI r eei n E iH D E RC ge Biel i kS 11 qun OND pawarec ILI wie fa L L ac HAOL EE izo IDA ci pe ZEN v 3 quo nro rat OMIZ AS op AS z T MA ei S zrs SIS Pe mm a a TAL NATY sy lj ses aoe amr 8d du au 99 ri VET IMS ETE Cem LA UI FIRE Tre 929 NNS 4135 109 sm MURIS ETE CH ONA ans ana ano DOHA ons i Den P FI NONE IVA ona ABLEMO LIVE MO Hui ca E gi JHHd HOSN3S JOVJHIJINI DOMA 918 ESH 04 Service Documentation Page 11 July 2004 Sensor PCB Component Layout Page 12 ESH 04 Service Documentation July 2004 E G be G L a x Q m T ec Jesus 0 85 20 FO0C S0 90 2160 MON P Ada JAQLUNN Ju tunooq TIA OLON IL Mluonmy l ulzIp W 4119714 DER HIWANS 7 E E Nd HOSN3S ABLSINO Odd 90 idd lt 4d sans l zad sneg onnziaH lt ogd siga onnziaH d n lt ggg smua uang Mid snivisziaN IYBMO1 vouga tod tod 00d SNIVISMIXV 9d ODA AS ZL3NQHVOS VEIAPL 6 pg 9 2 gt gt TO I 1vs od 4 001 AS d je SC 4 od H 3dAl 21438 M ejmsepe1 9L HELA VSL L XEN ACL XEW KC 138340 WEI ON
3. Service Documentation Page 14 C1 Cap 10pF SMDO6OS 00 C2 Cap 10pF SMDO6O3 II C3 jCap 100phF SMD0603 II C4 Cap 10uF SMD1210 o S J y O C5 Cap 22yF 16V SMD 1812 J J Y C6 Cap 1001F SMD 0603 J 0 Cr Cap 100nF SMDO6OS J O C8 Cap 100nF SMD 0603 Z J C9 jCap 100pF SMD0603 J O Cio Cap 4 7uF 50V SMD1210 C11 Cap 100nF SMD 0603 C12 Cap 221F 16V SMD 1812 C13 Cap 100nF SMD 0603 C14 Cap 100nF SMD 0603 C15 Cap 17 SMD 0603 C16 Cap 100nF SMD 0603 II C17 Cap 100nF SMD 0603 II C18 Cap 100nF SMD 0603 II C19 Cap dur SMD 1210 J 0 C20 Cap 14F SMD 0603 O C2 Cap 14F SMD 0603 J JP5 PINHDIXZ JPG _ PINHD 1x2 1 o O S HC49U70 LION rechargeable battery 10 8V 2 3Ah SU1 Buzzer thru hole TMB 05 STI Connecior 1x2 PANCON ST2 Connecior 1x3 PANCON ST3 Connector 1x3 PANCON STA Connecior PF 50x6 ST5 Connecior 1x2 PANCON ST6 Connecior Pinhead2x5N July 2004 ESH 04 Service Documentation Page 15 D1 Duodiode BAV 70 SMD SOT23 D2 Diode 1N4148 SMD SOD80 D3 Duodiode BAV 70 SMD SOT23 j D4 Diode 1N4148 SMD SOD80 o T D5 DiodeMBRA140T3 J j D6 Diode 1N4148 SMD SOD80 D7 LEDDiodered 3mm o o D8 LED Diode yellow 3mm DY LEDDiodegreen3mm D
4. milliseconds If a fault is detected during this test the ESH 04 shuts off and generates a visual and acoustic alarm July 2004 ESH 04 Service Documentation Page 5 If the controller develops a fault a hardware based safety shut off overrides the first level safety shut off The second level over temperature shut off is activated at a fixed temperature of 45 C Temperature Voltage monitor The shut off test is performed every 1000ms during operation Temperatur monitor gt 50 C July 2004 ESH 04 Service Documentation Page 6 4 Circuit Schematics and Layouts BOTTOM S LEE d CH UL EN 2224 a 1001 E O O a Sie z SE rip p G THE VO 6 G Je titi NOTC V1 2 o TA MY sele JENNA E COR S td eM Jugen x uo0 2 Op A 2N700 mal JE bi 330k 0 o 3 221F 16 July 2004 ESH 04 Service Documentation Page 7 BOTTOM 5 AA LI A CT o o 131813 S jii Qc 1 NOTC V1 2 Td E T 19 A3 3 je 15 2614 ssp Hei er Li a July 2004 ESH 04 Service Documentation Page 8 ACT Z LA OLON Page 9 Service Documentation ESH 04 July 2004 Z LA OLON 13 6314 ESH 04 Service Documentation Page 10 July 2004 zil Oc uS 20 KOUE SO 90 SIETI MEJE PET AJA JSBWIN iueunooc aun DMS Z LA LON ZL KEE GEET 1 119
5. plug it in again check the Charge LED Shut off the ESHOA disconnect the power adapter and connect it again Timer set Charging starts it should be finished after 4 15 hrs Charge LED must not be illuminated July 2004 ESH 04 Service Documentation Page 20 Temperature test Place 2 infusion flasks 500 ml into the ESHOA Attach a temperature probe half way up the left flask along side of the right flask The temperature meter should have an accuracy of 0 1 C Take the measurement at room temperature flasks and device with the communications cable attached and without the power adapter Pump the pressure bag up to 300mmHg Turn on the ESH04 The unit should still be heating after about 90 minutes the rechargeable battery is then OK Connect the device to the power adapter and after another 30 minutes check the regulated temperature 37 1 5 C Watch the temperature control 0 and 1 on the monitor Check to ensure that the pressure cuffs for leaks When the temperature test has run for more than 120 minutes a minimum pressure of 200mmHg should still be present Continuous test e Startup at room temperature with two 500ml flasks e After about 2 hours measure the temperature at the flask e After 24h measure the temperature again at the flask The initial and final values must remain within the tolerances Be sure that ambient conditions are always the same when you take the measurements The final v
6. 10 Zener diode 4V7 SMD D11 Duodiode BAV 70 SMD SOT23 Es c a RB 051L 40 SMD SMB e een O RB 051L 40 SMD SMB D14 Diode 1N4148 SMD SOD80 00 EI ST723224 L IC2 MAXIM IC8 TC4SUG9F C MOS inverter LT1513 D Pack chargingIC VAT jVaristor 18V DC thru hole RM5 j VAZ Varistor5v SMD 0603 VA3 Varistor 14V SMD0603 j VA4 Varistor 5V SMDO6O3 j VAS Varistor 5V SMD0603 Ir VA6 Varistor 5V SMD0603 Ir VA7 Varistor5v SMD0603 Ir VA8 Varistor5V SMD0603 j VA9 Varistor 14V SMD0603 j Sl1 SI2 Fuse25AT SMD TA1 TA3 Pushbutton RAFI 3 AC402 j plunger l 7mm D 8mm 90 base JP1 JP4 Jumper ll JP5 _ PINHD 1x2 j HAT HA3 Ledholder EL LRBIR July 2004 ESH 04 Service Documentation Page 16 T1 IPSO21L BSP75 SMDSOT222 T2 JIPSO21L BSP75 SMD SOT223 0 T3 JFET N 2N7002 SMD SOT23 T10 IPS 021L BSP75 SOT223 not populated EE L C Rod MEE E q Sa Eo L p 3 Je ET SES RE 1 dd 15pH choke RM3D7 p NRI 101H choke RM5 WE PD4 1 000 77777 7507 720 101H choke RM5 WE PD4 i San 15pH choke RM3D7 0000000 eens 15pH choke RM3D7 AJ 1 5UH choke 1206 pc c 1 5UH choke 1206 ww 1 I j gu a ne L I 7q A PoE LO ko amp LL y o x EE LP Ro di inductor 0 4uH SM NE45 not populated L13 inducto
7. O 9 B il d GunueMm EK uve z uo MDP Page 13 Documentation ice Serv ESH 04 July 2004 6 Parts Lists RI Res 100k SMD0603 J J y oO R2 Res 100k SMDO603 J Z o J R3 Res k SMD0603 II R4 Res k SMDO603 II R5 Res 10k SMD0603 II R6 Res 390E SMD 0603 J lt R7 Res 390E SMD 0603 J Z J R8 Res 390E SMD 0603 R9 Res 2k2 SMD 0603 II RIO JRes 10k SMD 0603 J o J R11 JRes 100k SMD 0603 LI R12 JRes 270E SMD 0603 J 0 R13 JRes 10k SMD 0603 Z o J R14 JRes 10k SMD 0603 O R15 Res 0 56E thru hole 0 33W R16 Res 0 56E not populated 10000000 R17 Res 330k SMD 0603 R18 Res 33k SMD 0603 II R19 Res 470k SMD 0603 II R20 Res 3k9 SMD 0603 II R21 Res 10k SMD 0603 II R22 JRes 4k7 SMD 0602 J o R23 Res 100k SMD 0603 J o J R24 JRes IM SMD0603 II R25 JRes 15k SMD0603 II R26 J Res 100k SMD0603 J Z y R27 Res 100k SMD 0603 J Z o O R28 jRes33kK SMD0603 J R29 Res 1E thru hole 033W R30 Res 10k SMDO603 Z o J O R31 JRes 2k2k SMD 0603 Z 0 R32 Res 100k SMD 0603 II EA 100k SMD 0603 not populated kovo Res 0 56 RL73 3A not populated ET te OD populated July 2004 ESH 04
8. al condition of all components must be suitable for continued safe use housing zipper cord window stitching cable tubing manometer and hand pump e There must be no contamination on the Emergency Warmer which could impair safety e Electrical testing of the power adapter equivalent device leakage current power consumption July 2004 ESH 04 Service Documentation Page 24 EMERG WARMER ESHO4 Test Procedure Electrical Safety GERBO023 Calibrate test lead GERBO001 GERBO024 GERB019 July 2004 Measure resistance to the protective conductor Units Ohms spec value 0 00 limit 0 00 abs tol 0 00 rel tol 0 00 Units Ohms spec value 0 00 limit 0 00 abs tol 0 00 rel tol 0 00 Line voltage test Measure the line voltage RMS Units VOLTS spec value 230 limit 0 00 abs tol 0 00 rel tol 0 00 Units VOLT spec value 230 limit 0 00 abs tol 0 00 rel tol 0 00 Power consumption test Measure the RMS power consumption of the device under test The test has a time limit A message is issued if the time is exceeded Maximum power 3 5 kVA Be sure that the blood heater is in the heating phase when you take this measurement Units Watts spec value 0 00 limit 0 00 abs tol 0 00 rel tol 0 00 Units Watts spec value 0 00 limit 0 00 abs tol 0 00 rel tol 0 00 Derived leakage current as show in Fig 9 and defined in VDE 0751 The line voltage is the test voltage which is applied to the devi
9. alue may deviate by 0 5 C from the initial value DETAIL VIEWS July 2004 ESH 04 Service Documentation Page 21 Complete pressure cuff heating foil ESH04 populated PCB with battery and lower housing Complete housing with cable connection serial communications connector July 2004 ESH 04 Service Documentation Page 22 BICGLCE MEDIZINELEKLEFONIK Emergency Warmer ESH04 Test Log INITIAL TEST MAINTENANCE TEST Device No Date T dee A detailed knowledge of the applicable procedure is required to perform these tests TEST NOMINAL FUNCTION RESULT 1 Data communications 2 Check charge cycle simulated charging time 1 min shut off L Charge LED turns off 3 Operating temp 37 C 1 5 C after about 2 hrs Battery operation power 4 Pressure sleeve initial min 300 mmHg leakage final min 200 mmHg 7 Mech condition 9 Markings 5 Battery charging about 4 5 hr Charge LED turns off 10 Visual inspection device power adapter Signature of test engineer July 2004 ESH 04 Service Documentation Page 23 8 Safety Checks Periodic checks must be carried out on the ESH 04 Emergency Warmer at least every 12 months Persons performing the checks must have sufficient training knowledge and practical experience to conduct safety checks e The safety information on the unit and its accessories must be clearly legible e The mechanic
10. an invoice or receipt is supplied and if the warranty claim is made within the warranty period The warranty is void if the device is damaged or is not used or maintained properly as described in the Operating Manual or if unauthorized work has been carried out July 2004 ESH 04 Service Documentation Page 4 3 Alarms Safety Shut Off The Emergency Warmer has separate Self Test and Over Temperature Alarm functions SELF TEST The software performs periodic self tests If a fault is detected during one of these tests the unit shuts off automatically OVER TEMPERATURE ALARM As the first level of over temperature protection the software generates an alarm when the temperature rises above 41 C and all functions are shut off The red Alarm LED is illuminated and an alarm buzzer sounds to alert the user The second level safety shut off is triggered by the hardware when the temperature exceeds 45 C SAFETY SHUT OFF The temperature on the ESH 04 is factory set to 37 C A digital sensor is used to monitor the temperature This sensor together with the second level safety shut off mechanism is mounted on a small PCB which is attached to the heating mat A microcontroller on the ESH 04 provides temperature control scans the keys acts as the service interface and runs the output stage self test Two power MOSFETs connected in series control the heating The controller tests the function of the output transistors every 1 000
11. atment must check the patient s condition at regular intervals Failure to do so could pose a serious risk to the patient s health If the device is attached to an infusion pole or stand the pole or stand must have sufficient stability and load bearing capacity to support the device e Force must not be applied to the device or its accessories The only way to ensure that the device is disconnected from the line voltage is to unplug the power adapter The system may only be used in conjunction with electrical systems which comply with applicable standards and regulations The device must not be used in potentially explosive atmospheres Only persons or service centers that have been authorized by Biegler may carry out repairs or modifications to the Emergency Warmer Fluid steam or thermochemical methods must not be used to sterilize the device The effects of external fields such as electromagnetic radiation and high temperature must be minimized e Periodic safety checks must be conducted as defined in the Periodic Checks section of the Operating Manual If the device falls is damaged or does not function as described in the Operating Manual it must be shut off immediately and sent for service WARRANTY Biegler Medizinelektronik provides a device warranty for a period of one year following the date of sale The warranty covers defects in materials or workmanship and includes both parts and labor The guarantee is valid only if
12. ce under test Measure the current which flows from the housing to ground The derived leakage current must not be more that 1 5 times the initial value and it also must not exceed the limit value of 750 pA Line power switch ON Units JA spec value 0 00 limit 750 abs tol 0 00 rel tol 0 00 Units JA spec value 0 00 limit 750 abs tol 0 00 rel tol 0 00 ESH 04 Service Documentation Page 25 PARTS LIST 9 Spare Parts DESCRIPTION PART NO July 2004 ESH 04 Service Documentation Page 26
13. r 0 4uH SM NE45 not populated Rx L July 2004 ESH 04 Service Documentation Page 17 Sensor PCB IC2 Temperature sensor DS18B20 SO 08 V CE NOTE 1 2 I pH July 2004 ESH 04 Service Documentation Page 18 7T Test Sheet and Test Log Procedure Test Sheet Procedure ESH 04 Emergency Warmer July 2004 ESH 04 Service Documentation Page 19 ESH 04 Test Persons performing this procedure must have a very good understanding of the various test steps The procedure should be used as a reference in conjunction with the ESH 04 test sheet If applicable BIEGLER will provide updates as supplemental sheets which must be immediately inserted into the procedure Test sequence Start the communications program at the computer Connect the communications cable to the ESHOA Connect the ESHOA to the power adapter Use a stop watch to check the whether the time counts down from 255 at one minute intervals Observe for at least two minutes Monitor display S Standby N power 0 no heating Check the charge function on the ESH04 the Charge LED must be illuminated Check charge shut off press the L key on the computer simulates one minute charging time The Charge LED on the ESH04 must turn off after one minute Turn on theESHOA Check whether the On LED is illuminated and the ESHOA is heating Monitor displav B operating N power 1 heating Unplug the power adapter and
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