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6132.200

Babytherm 8000

Repair Instructions

04.01

Page 1 of 115

Repair Instructions for Babytherm 8000

Table of contents:

Mechanical system ........................................................................................................... 3

Pneumatic system .......................................................................................................... 14

2.1 Extraction .................................................................................................................... 14

Heating panel with sensors ............................................................................................ 15

Mattress heating electronics........................................................................................... 22

Mattress heating software .............................................................................................. 68

5.1 Software versions ....................................................................................................... 68
5.2 Testing after replacement ........................................................................................... 68

Troubleshooting - mattress heating ................................................................................ 69

Содержание Babytherm 8000

Страница 1: ...al information 15 3 2 Heating panel assembly 16 3 3 Testing 18 3 4 Replacement in repair situation 18 3 5 Testing after replacement 19 3 6 Repair information and modification statuses 20 4 Mattress heating electronics 22 4 1 Removal and installation of electronics and components 22 4 2 Electronics complete 27 4 3 Controller PCB 34 4 4 Power PCB 39 4 5 Display PCB 52 4 6 Mains switch 55 4 7 Transfo...

Страница 2: ...s 107 8 1 Primarily for work on electrical components 107 8 2 Primarily for work on mechanical components 107 8 3 Equipment for functional tests 108 9 File for repair information and unit modification 108 9 1 New software version 1 02 07 94 108 9 2 Mounting the mechanics of the resting surface tilt mechanism 09 94 109 9 3 Alteration of class type B to BF 12 94 109 9 4 Additional height adjustment ...

Страница 3: ...iant heater Units with electrical height adjustment o Small trolley for heated cot o Large trolley for intensive care module or reanimation unit This version permits installation of a radiant heater 1 1 1 Trolley for units without height adjustment The trolley consists of a trolley plate small or large which is keyed to the metal casing of the column This trolley has the following castors 2 x cast...

Страница 4: ...rder Make sure that circlip is fitted on pin of castor part of scope of delivery of castors In the case the castor was secured by a hexagon socket head screw this screw must be affixed using Loctite 221 order no 79 01 966 Fit cap 1 1 2 Trolley for units with height adjustment There are two possibilities Large trolley 2M 21 036 Short trolley 2M 21 038 These trolleys have the following height adjust...

Страница 5: ...M 20 348 see Fig from drawing 2M 21 036 The castors can be pressed out of the tubular section using two screwdrivers Important Do not apply leverage to plastic parts of castors Should this not prove possible cut off orange cap 2M 20 348 at end of tubular section and press out castor pin from inside 1 1 3 Replacement in repair situation Replacement parts are available in line with the spare parts l...

Страница 6: ...e 2M 20 290 1 2 1 Height adjustment technical data Height adjustment 230V Dynamic force 750 N Stroke 295 mm Speed 12 15 mm s Voltage 220 240 V 50 60 Hz Current consumption 2 5A Leakage current 0 1 mA Fuses o Temperature switch self resetting o 2 x fuse DIN 41662 T3 15A 18 15 148 Height adjustment 115V Dynamic force 750 N Stroke 295 mm Speed 12 15 mm s Voltage 100 127 V 50 60 Hz Current consumption...

Страница 7: ...ing surface is attached to the base plate The Babytherm 8000 comes with various base plates Small base plate and small trolley for heated cot o Base plate small with handles 2M 20 860 2M 21 148 Large base plate and large trolley for intensive care module or reanimation unit This version permits installation of a radiant heater o Base plate large with handles 2M 20 862 2M 21 146 Caution Large base ...

Страница 8: ... 94 The future Standard for mattress heating IEC 601 2 35 as at 12 94 prescribes that the resting surface is no longer to be earthed and that class type BF Body Floating must be used The units are currently being supplied as type B Body i e with earthed resting surface Production of the Babytherm 8000 with mattress heating is to be switched as of the start of 1995 to class type Typ BF prior to thi...

Страница 9: ...ting surface comes with heated cot and without reanimation unit mattress heating With mattress heating Gel mattress 2M 20 827 The mattress heating panel is only intended for the gel mattress 2M 20 827 Danger The gel mattress 2M 20 827 may only be used in the Babytherm 8000 in conjunction with the resting surface heater The gel mattress 2M 20 827 is not to be used in the Babytherm 4200 and in other...

Страница 10: ... mechanism in the bottom section and the latch for the mechanical system of the resting surface tilt mechanism A B C D H H Pulling the lever A presses the latch B downwards out of the gear mechanism C and the resting surface D can be swivelled out of its basic position by 15 to 20 The lever is pulled back again in each case by two springs and the resting surface thus fixed in position 1 5 2 1 Chec...

Страница 11: ...mechanism C in resting surface section there must not be any signs of wear Visually inspect gear mechanism B of latch 2M 20 855 of mechanical system of resting surface tilt mechanism To do so un screw out bolts E and F There must not be any signs of wear Reattach latch Important The bolts E and F are secured with epoxy hardening glue UHU Plus Visually inspect tilt mechanism All moveable parts must...

Страница 12: ...arly Loosen the screw G a few turns Unscrew the bolts E and F and apply epoxy hardening glue UHU Plus order no 11 95 255 on their threads Screw in the bolts E and F and re tighten them Repeat the test o Resting surface is not released too late or is not released properly Remove the bolts E and F and screw in the screw G a few turns Apply epoxy hardening glue UHU Plus order no 11 95 255 on the thre...

Страница 13: ... panel hinges The hinges of the side panels can be renewed this requires use of the following spare parts S set for hinge left 2M 21 084 S set for hinge right 2M 21 082 A 2 mm bit and a drill are needed for assembly 1 5 4 Replacement in repair situation Replacement parts are available in line with the spare parts list 1 5 5 Testing after replacement Check reliable locking of panels Visually inspec...

Страница 14: ...nism must be mounted with 4 Spax screws order no 12 75 593 Devices already in service must be retrofitted with this type of screws see IDM no 1 and conversion instructions under U Chapter 2 1 The two cylinder head screws of the latch 2M 20 855 and the screw on the control lever must be secured with epoxy hardening glue UHU Plus order no 11 95 255 1 6 Accessories 1 6 1 Cabinet Cabinet mount complet...

Страница 15: ...ontrol unit Transformer Partition of prim sec voltage To distinguish between type B and BF the mattress heating control and heating panel have different plugs for the heating connection Type B old 3 pin connector for heating cable one cable for protective conductor Type BF new 2 pin connector for heating cable As not all parts of the mattress heating are interchangeable the modified components hav...

Страница 16: ... fitted with thermal conduction paste at the backing plate contact surfaces The heating panel is secured in position in the cot from underneath with four bolts The heating panels for types B and BF have different order numbers The following heating panel parts differ Heating panel 2M 20 877 for type B Heating panel 2M 21 510 for type BF Double temp sensor 2M 20 859 with shield connected to sensors...

Страница 17: ... use of ballpoint pen refills with metal tube with a tube ID of approx 2 6 mm 3 2 1 Heating and sensor connections Heating for type B Pin Color Significance 1 not yellow green Heating 2 not yellow green Heating 3 yellow green Protective conductor Heating for type BF 2 x Heating Twin temperature sensor 2 x 2 sensors Refer also to drawing wiring harness twin temperature sensor 2M 20 875 under S Pin ...

Страница 18: ...the plate Cover the plate with the gel mattress 2M 20 827 Cover the gel mattress with the foam mattress 2M 21 102 If possible cocer the resting surface with the hood 2M 21 030 Allow the unit to warm up at least 2 hours Important Do not use any additional radiant heater Test value of the reference temperature instrument Reading 36 0 1 0 C 3 4 Replacement in repair situation The following spare part...

Страница 19: ...anel 2M 21 510 will be available The new heating panel 2M 21 510 for type BF will then have to be converted to type B in the event of repair This will involve taking over the protective conductor cable connection and 3 pin heating connector from the defective heating panel 2M 20 877 In this case the protective conductor connection is to be laid separately from the heating cables To remove the conn...

Страница 20: ...uses 3 6 1 Alteration of class type B to BF 12 94 The future Standard for mattress heating IEC 601 2 35 as at 12 94 prescribes that the resting surface is no longer to be earthed and that class type BF Body Floating must be used The units are currently being supplied as type B Body i e with earthed resting surface Production of the Babytherm 8000 with mattress heating is to be switched as of the s...

Страница 21: ...w shrink down tubing This sensor can also be used in type B Alteration has already been made on some units of type B Foil heating 2M 20 876 with 3 pin connector 2 x heating Protective conductor Foil heating 2M 21 509 with 2 pin connector 2 x heating Important In future only the new heating panel 2M 21 510 will be available The new heating panel 2M 21 510 for type BF will then have to be converted ...

Страница 22: ...lling electronics assembly Important Components can be effected by static electricity 1 2x 5 3 4 2 Interrupt mains connection to Babytherm 1 Swing up the two side catches on the electronics assembly 2 Pull electronics assembly slightly out of Babytherm 3 Detach mains connection 4 Detach sensor and heating connecting cable 5 Pull out electronics assembly Install in reverse order ...

Страница 23: ...ity Loosen both screws in the cover of the electronics assembly do not screw out push cover forwards and remove upwards Detach cable connections from connectors in cover to printed circuit cards Bend housing apart on side 1 and tilt keypad with display PCB forwards 2 PCB Controller Transformer Keyboard PCB Display 1 1 2 PCB Power Install in reverse order ...

Страница 24: ...ormer Mains input with fuses Connection heating Fuses Relay Gold Cap Horn EPROM Connection Sensors RS232 4 Service LEDs Connection protective conductorr PCB Power PCB Controller R22 Test points F2 F1 V2 V11 Important 100 127 V units feature a voltage adapter from the accessory set voltage conversion 2M 21 176 between mains switch and transformer ...

Страница 25: ... effected by static electricity Remove electronics assembly see 4 1 1 Open electronics assembly see 4 1 2 Detach cable connections to keypad and display PCB see 4 1 3 wiring diagram Power PCB is attached with three snap fasteners and a screw connection at the heat sink whereas controller PCB is secured in position with four snap fasteners o Loosen screw connection for power PCB o Squeeze snap fast...

Страница 26: ...ts 2 x fuse DIN 41662 T800mA 18 15 075 o 100 127V units 2 x fuse DIN 41662 T1 6A 18 15 105 Slide fuse compartment back in again Re install electronics assembly 4 1 6 2 Removing and installing mains input Important Components can be effected by static electricity Remove electronics assembly see 4 1 1 Open electronics assembly see 4 1 2 Detach cable connections at mains input see 4 1 3 wiring diagra...

Страница 27: ... transformer Transformer is attached to housing with four screw connections Install in reverse order 4 2 Electronics complete 4 2 1 General information The electronics module contains the entire control system for the mattress heating The module is made up of the following components Controller PCB Power PCB Display PCB Mains switch Transformer Keypad Mains input Adapter for voltage conversion 100...

Страница 28: ...isplays and horn are actuated for 1 2 s Then o Setpoint display 37 0 C o Measured value and label SEt flash up alternately on actual value display Important measuring range 5 C 45 C o Pressing one of the keys or setpoint produces constant actual display Without prior pressing of range expansion key setpoint can be adjusted to between 35 0 C and 37 0 C After prior pressing of range expansion key se...

Страница 29: ...ect plug from sensor cable at assembly o Visual and acoustic sensor alarm Reconnect plug Testing in DS mode see 6 2 if actual value greater than 37 C o Read out all four temperature values in each case in DS mode 6 2 1 6 2 4 The permitted deviation between the minimum and maximum temperature value is 0 4 C Note The value displayed in DS mode is 1 0 C higher than the value normally displayed in ope...

Страница 30: ...trol system 2M 20 880 and the RAT repair replacement control system 2M 21 095 for type B will no longer be available in future Type BF controls are to be ordered as spare part for the old type B On installation merely the housing cover with the two wiring harnesses heating adapter and sensor adapter is to be taken over from the defective control system The marking on the housing of the new control...

Страница 31: ...6132 200 Babytherm 8000 Repair Instructions 04 01 Page 31 of 115 o Mains failure alarm o Data storage with mains failure alarm o Function of keys o Function of display elements o No error messages ...

Страница 32: ...stinguishing features 2 pin heating connection Order no printed on Marked BF RAT mattress heating control 2M 21 095 RAT mattress heating control 2M 21 506 Important The control system 2M 20 880 and the RAT repair replacement control system 2M 21 095 for type B will no longer be available in future Type BF controls are to be ordered as spare part for the old type B On installation merely the housin...

Страница 33: ...he type BF requires additional capacitors in the measurement input which cannot be retrofitted in the field Retrofitting has already been performed if the modification number after the order no is 1 1 i e the PCB is marked with 82 90 688 1 1 or a higher modification number Some units of type B already feature this modification Controller PCB 82 90 688 1 0 Controller PCB 82 90 688 1 1 Only for use ...

Страница 34: ...nts can be effected by static electricity Position in electronics system PCB Controller Mains input with fuses EPROM Connection Sensors 4 Service LEDs Connection protective ground PCB Power PCB Controller Transformer Switch Keyboard PCB Display PCB Power Connection heating Fuses Relay Gold Cap Horn R22 Test points F2 F1 V2 V11 ...

Страница 35: ...CB Controller D2 EPROM Connection Sensors RS232 4 Service LEDs D1 M1 M2 M3 M4 M5 M6 X2 X1 X3 X11 X12 1 T1 Components and jumpers Item Component function X1 Connection to display PCB X2 Connection to power PCB X3 Connection to sensors of heating panel refer to 3 2 1 for wiring diagram X11 RS232 not active ...

Страница 36: ...ing protective conductor D1 Microcontroller 68332 18 37 109 D2 EPROM see 5 Repair information software M1 M4 Temperature module 83 50 082 M5 M6 Not used Service LEDs V1 V2 V3 V4 Processor ok RAM defective PCB Display INOP EPROM defective during switch on test after swich on test Processor ok no key pressed V1 to V3 off 1 key pressed 1 LED flashes 2 keys pressed 2 LEDs flash 3 keys pressed 3 LEDs f...

Страница 37: ...n number Some units of type B already feature this modification Controller PCB 82 90 688 1 0 Controller PCB 82 90 688 1 1 Only for use in type B Use in type BF could result in destruction of measurement input caused by the influence of voltage peaks Can be used in types B and BF 4 3 5 Testing after replacement Refer to 4 2 3 Testing electronics complete 4 3 6 Repair information and modification st...

Страница 38: ...troller PCB 82 90 668 1 0 Controller PCB 82 90 668 1 1 Only for use in type B Use in type BF could result in destruction of measurement input caused by the influence of voltage peaks Can be used in types B and BF Important A summary of class alteration from type B to BF is given in Section 9 3 Consult this Section in the event of doubt 4 3 6 2 New EEPROM on Controller PCB 04 01 A new EEPROM on the...

Страница 39: ...s can be effected by static electricity Position in electronics system PCB Controller Mains input with fuses EPROM Connection Sensors 4 Service LEDs Connection protective ground PCB Power PCB Controller Transformer Switch Keyboard PCB Display PCB Power Connection heating Fuses Relay Gold Cap Horn R22 Test points F2 F1 V2 V11 ...

Страница 40: ...5 1 X1 X7 X2 X5 X6 X8 1 3 2 1 3 2 Components and jumpers Item Component function X1 Connection to controller PCB X2 Connection to transformer X5 Connection to auxiliary contacts in mains switch X6 Test points 1 GND digital 2 5 V digital 3 Voltage gold cap battery 4 not used 5 not used 6 not used X7 Connection heating 1 and 2 Heating 3 Protective conductor heating panel ...

Страница 41: ...t points 1 1 C25 1 X5 X6 X8 T1 Connection to housing protective conductor F1 Fuse T 800 mA DIN 41662 18 15 075 F2 Fuse T 6 3 A DIN 41662 18 15 172 K1 Relay 5V 8A 18 30 732 V2 Triac 600V 8A 18 13 951 V11 Voltage regulator 5V 18 09 245 1 In 2 GNDD 3 Out C25 Gold cap 3 3F 18 36 986 Horn Buzzer 18 24 880 Important There are no components on the power PCB which have to be replaced at service intervals ...

Страница 42: ...to Babytherm Remove electronics assembly or pull it out of Babytherm Remove cover from electronics assembly Heating and sensors do not have to be connected Establish mains connection Caution Parts under current e g mains switch may be touched by coincidance therefore use insulation transformer ...

Страница 43: ...and measurement points PCB Power Fuses R0 Test points 1 GND digital 5 V digital Batt Volt 24 V AC 9 V AC 1 F2 F1 F1 Fuse for 24 V AC Voltage F2 Fuse for 5 V Voltages PCB Controller EPROM 4 Service LEDs Transformer PCB Display PCB Power Fuses R22 Test points F2 F1 V2 V11 Testing ...

Страница 44: ... gold cap C25 defective Battery voltage Measure with multimeter between test points 3 and 1 GNDD without mains connection however with device switched on 3 5 VDC Gold cap C25 defective if previous test with voltage supply OK 4 4 3 2 Testing heating actuation safety relay and heating feedback Preparation for testing Interrupt mains connection to Babytherm Remove electronics assembly and heating pan...

Страница 45: ...est set up and measurement points IN OUT 2 1 40 39 Relay on Heating on V GNDD Feedback heating 5 VD 3 13 20 Dräger Testboard Uni 79 00 620 free 36 LP Controller EPROM 4 Service LEDs PCB Display PCB Power Connection heating Relay Horn R22 Test points F2 F1 V2 V11 1 3 2 ...

Страница 46: ...gh level heating on Remove one short circuit in each case Test voltage always V 1 V low level 4 4 3 3 Testing horn acoustic mains failure alarm and mains switch auxiliary contacts Preparation for testing as for 4 4 3 2 however heating and sensors do not have to be connected Interrupt mains connection to Babytherm Remove electronics assembly from Babytherm Remove cover from electronics assembly Int...

Страница 47: ...e 47 of 115 Test set up and measurement points IN OUT 2 1 40 39 R 37 Dräger Testboard Uni 79 00 620 free 38 PCB Controller EPROM 4 Service LEDs Switch Tastatur PCB Display PCBPower Connection heating Fuses Horn R22 Test points V2 V11 1 3 2 R V 27 1 Relay ...

Страница 48: ...GNDD and TP 38 Off R R 0 Ohms On R 0 Ohms R Testing mains switch auxiliary contacts on off switch Switch position Voltage measurement between TP 27 on test board and TP 3 on power PCB X6 Possible faults Off V 3 5 VDC Switch defective Gold cap C25 defective Gold cap C25 not charged because 5V defective Charging circuit for gold cap C25 defective On V 0 V Switch defective Testing horn and mains fail...

Страница 49: ... 49 of 115 Test set up and measurement points IN OUT 2 1 40 39 35 Dräger Testboard Uni 79 00 620 free 30 PCB Controller EPROM 4 Service LEDs Switch PCB Display PCB Power Connection heating Fuses Horn R22 Test points V2 V11 1 3 2 3 1 Horn on Horn off Relay ...

Страница 50: ...onally create short circuit on test board between TP 3 5 VD and TP 35 horn on Horn on 4 4 3 4 Testing visual mains failure alarm Prerequisite mains switch auxiliary contacts OK Assemble unit ready for operation Create mains connection Switch on unit Interrupt mains connection Visual and acoustic mains failure alarm 4 4 4 Replacement in repair situation The following spare parts are available for r...

Страница 51: ...er PCB Visual checks o Jumper fitted on X8 position 2 3 see 4 4 2 Layout o Correct connection of all cables for power PCB see 4 1 3 Wiring diagram o Heat sink attached to housing by way of screw connection Electrical safety check Functional check Test duration at least 20 minutes o Function of heating o Mains failure alarm o Data storage with mains failure alarm o Function of keys o Function of di...

Страница 52: ...n addition to reading in all keys 4 5 2 Display PCB Layout PCB Display D1 X1 X2 1 1 Components Item Component function X1 Connection to controller PCB X2 Connection to keypad D1 Keypad and display driver 18 20 877 4 5 3 Testing display PCB 4 5 3 1 Testing read in of keys Following successful switch on test every actuation of a key is displayed by the service LEDs on the controller PCB Important a ...

Страница 53: ...pressed V1 to V3 off 1 key pressed 1 LED flashes 2 keys pressed 2 LEDs flash 3 keys pressed 3 LEDs flash Refer also to testing of keypad under 4 8 3 2 4 5 3 2 Testing displays and LEDs in situ Prerequisite Check key OK see 4 5 3 1 Press Check key during operation All LEDs and horn are actuated for one second 88 8 appears on the 7 segment displays Possible faults Display Possible faults LEDs 40 C 1...

Страница 54: ...o testing of keypad LEDs 40 C 1 C 37 C 35 C under 4 8 3 3 4 5 4 Replacement in repair situation The following spare parts are available for repairs Display PCB 82 90 611 Keypad and display driver 18 20 877 4 5 5 Testing after replacement The following tests are to be performed after replacing the keypad Visual checks o Display PCB correctly installed Electrical safety check Functional check Test d...

Страница 55: ... Testing of mains contacts Testing is performed by measuring the mains voltage upstream and downstream of the mains contacts see 4 1 3 Wiring diagram 4 6 3 2 Testing of auxiliary contacts Refer to 4 4 3 3 Power PCB Testing mains switch auxiliary contacts 4 6 4 Replacement in repair situation The following spare parts are available for repairs Wiring harness mains 220 240V 82 01 795 o Mains switch ...

Страница 56: ... error messages 4 7 Transformer 4 7 1 General information The transformer uses the mains voltage to generate the AC voltages required for operation 9 V for electronics and 24 V for resting surface heating The transformer is provided with a thermal release 4 7 2 Technical data of transformer Input primary o 2 x 100 V o 2 x 120 V Output secondary o 24 V 6 7 A with centre tap 9 V Frequency o 50 60 Hz...

Страница 57: ...th positive voltage pass it must be ended with the negative voltage pass Testing is performed by taking measurements with an oscilloscope instead of a multimeter as described under 4 4 3 2 Testing triac and triac actuation the triac is only to be actuated for an extremely brief period of time The transformer cannot be repaired 4 7 4 Replacement in repair situation The following spare part is avail...

Страница 58: ...115 Functional check Test duration at least 20 minutes o Function of keys o Function of displays o Mains failure alarm o Data storage with mains failure alarm No error messages 4 8 Keypad 4 8 1 General information The keypad contains 5 touch sensitive keys 6 LEDs ...

Страница 59: ... 885 Layout S1 S2 S3 S4 S5 L5 L6 L1 L2 L3 L4 1 25 S1 S2 S3 S4 S5 L3 L1 L2 L5 L6 L4 1 2 3 4 5 9 11 12 14 15 16 17 18 22 23 Components and function Compone nt Function S1 Touch sensitive key 37 C 35 C read in by display PCB S2 Touch sensitive key negative setpoint read in by display PCB ...

Страница 60: ...isplay PCB S5 Touch sensitive key check read in by display PCB Component Function L1 LED 40 C red actuated by display PCB L2 LED 1 C red actuated by display PCB L3 LED Inop red actuated by controller PCB L4 LED power failure red actuated by power PCB L5 LED 37 C 35 C yellow actuated by display PCB L6 LED horn off yellow actuated by display PCB The keypad cannot be repaired ...

Страница 61: ... on the controller PCB X12 in position 1 2 call up of DS mode without keys is classed as pressing of a key see also 4 3 3 4 Service LEDs on Controller PCB V1 V2 V3 V4 Processor ok RAM defective PCB Display INOP EPROM defective PCB Controller EPROM 4 Service LEDs Keyboard PCB Display F2 F1 during switch on test after swich on test Processor ok no key pressed V1 to V3 off 1 key pressed 1 LED flashes...

Страница 62: ...ults Display Possible faults LEDs 40 C 1 C 37 C 35 C and horn off defective off or flash 7 segment displays not OK Display PCB defective LED 40 C 1 C 37 C 35 C and horn off off 7 segment displays OK Display PCB defective actuation of LEDs Keypad defective cable break in joint GND of these LEDs One three of LEDs 40 C 1 C 37 C 35 C or horn off off 7 segment displays OK Keypad defective LED s defecti...

Страница 63: ... see 4 8 2 Layout Caution Only current from these test points is permitted since the test point is safeguarded by a 14 Kohm resistor PCB Power Fuses R0 Test points 1 GND digital 5 V digital Batt Volt 24 V AC 9 V AC 1 F2 F1 F1 Fuse for 24 V AC Voltage F2 Fuse for 5 V Voltages PCB Controller EPROM 4Service LEDs PCBDisplay Fuses Testpoints F2 F1 Each LED is to be checked individually The LEDs only li...

Страница 64: ...cing the keypad Visual checks o Keypad and connecting cable correctly installed Electrical safety check Functional check Test duration at least 20 minutes o Function of keys o Function of display elements o Mains failure alarm o Data storage with mains failure alarm o No error messages 4 9 Mains input 4 9 1 General information The mains input assembly features the following functions Power cord co...

Страница 65: ...5 o 100 127V units 2 x fuse DIN 41662 T1 6A 18 15 105 Euro power cord 2M 21 220 4 9 3 Testing after replacement The following tests are to be performed after replacing the mains input Visual checks o Connecting cable correctly installed Electrical safety check Functional check Test duration at least 20 minutes o Function of keys o Function of display elements o Mains failure alarm o Data storage w...

Страница 66: ...onnection on housing cover and controller PCB This cable can also be used in type BF Wiring harness Sensor adapter 2M 21 508 Wiring harness without ferrite between sensor connection on housing cover and controller PCB 4 10 3 Replacement in the event of repair These components are not envisaged as S parts 4 10 4 Repair information and modification statuses 4 10 4 1 Alteration of class type B to BF ...

Страница 67: ...ousing of the new control system is to be changed to type B and the order no from 2M 21 500 to 2M 20 880 There is no change to the cable connections between the PCBs The only alteration is to the wiring harnesses sensor adapter and heating adapter i e the two cable connections from the cover to the PCBs Type B Type BF Wiring harness Heating adapter 2M 21 096 3 pin adapter cable without ferrite bet...

Страница 68: ...Connection Sensors 4 Service LEDs Connection protective ground PCB Power PCB Controller Transformer Switch Keyboard PCB Display PCB Power Connection heating Fuses Relay Gold Cap Horn R22 Test points F2 F1 V2 V11 The following software is envisaged Software 1 00 1 01 mattress heating not allowed Software 1 02 mattress heating no longer available Software 1 04 mattress heating 2M 22 467 5 2 Testing ...

Страница 69: ...rror list together with the error frequency max 15 The error list can be read out and deleted Diagnosis mode The following can be implemented in diagnosis mode o Readout and setting of elapsed time meter o Readout of all A D converter channels and mono times o Actuation of safety relay and heating 4 Service LEDs on Controller PCB o One LED indicates status of processor o Three LEDs are assigned va...

Страница 70: ...ck Press both Silence and negative temp keys for four seconds during operation Call up without keys Call up is effected via a short circuit produced for approximately 1 s for example by way of a jumper on the controller PCB after the self test Important Error message after 30 s with sustained short circuit Position in normal operation without jumper or jumper in park position 2 3 X1 X12 1 Call up ...

Страница 71: ...in the error list after calling up DS mode The key 35 C 37 C can be employed at any time to switch between error list and diagnosis mode 6 2 3 Exit from service mode It is possible to exit from service mode at any time by jointly pressing the keys horn off and negative temp for more than 2 s or by switching off the unit ...

Страница 72: ...n2 6 3 4 Mode 4 Readout of temperature channel 4 Vin3 6 3 5 Mode 5 Free temperature channel 5 Vin4 6 3 6 Mode 6 Free temperature channel 6 Vin5 6 3 7 Mode 7 Gold cap voltage Vin 6 6 3 8 Mode 8 AD test channel Vin 7 6 3 9 Mode 9 Output of watchdog 1 time 6 3 A Mode A Output of watchdog 2 time 6 3 b Mode b Switch on and switch off safety relay 6 3 C Mode C Switch on and switch off heating and readou...

Страница 73: ...ode 1 Readout of temperature channel 1 Vin0 Output of temperature channel 1 Vin0 in C testing of excess temperature ANASW1 and readout of switching status of excess temperature comparator UETEMPQ DE F A B C 37 C 35 C Horn off Check F Mode number 1 flashing A B C Temperature in C without 1 0 C offset subtracted during operation D Switching status excess temperature comparator 0 No excess temperatur...

Страница 74: ...lashing A B C Temperature in C without 1 0 C offset subtracted during operation The mode number can be switched with the keys positive temp or negative temp Back 6 3 3 Mode 3 Readout of temperature channel 3 Vin2 Output of temperature channel 3 Vin2 in C test for excess temperature ANASW2 and readout of switching status of excess temperature comparator UETEMPQ DE F A B C 37 C 35 C Horn off Check F...

Страница 75: ...1 6 0 2 C and D 1 The mode number can be switched with the keys positive temp or negative temp Back 6 3 4 Mode 4 Readout of temperature channel 4 Vin3 Output of temperature channel 4 Vin3 in C DE F A B C 37 C 35 C Horn off Check F Mode number 4 flashing A B C Temperature in C without 1 0 C offset subtracted during operation Mode number can be switched with the keys positive temp or negative temp B...

Страница 76: ...ore Mode number can be switched with the keys positive temp or negative temp Back 6 3 7 Mode 7 Gold cap voltage Vin 6 Output of gold cap voltage from power PCB measured by controller PCB Vin6 and deactivation of charging voltage DE F A B C 37 C 35 C Horn off Check F Mode number 7 flashing A B C Gold cap voltage in V D Charging voltage yes no 0 No charging voltage 1 Charging voltage present Gold ca...

Страница 77: ... test channel Vin 7 Output of voltage AD test channel Vin 7 DE F A B C 37 C 35 C Horn off Check F Mode number 8 flashing A B C Voltage in V test value 5 0 0 2 V This voltage is formed from 5 V digital 5 V analog and the reference voltage for the A D converter it corresponds to the voltage of 0 39 0 02 V at the input of the A D converter Mode number can be switched with the keys positive temp or ne...

Страница 78: ...ber 9 flashing A B C Mono time in ms set value 250 3 ms Mode number can be switched with the keys positive temp or negative temp Back 6 3 A Mode A Output of watchdog 2 time Output of watchdog 2 time in ms DE F A B C 37 C 35 C Horn off Check F Mode number A flashing A B C Mono time in ms set value 250 3 ms Mode number can be switched with the keys positive temp or negative temp Back ...

Страница 79: ...er b flashing A B C rEL as flag for relay D Check back signal of independent excess temperature deactivation path 41 6 C 1 Relay on no excess temperature 0 Relay off excess temperature The relay can be deactivated with the check key by setting excess temperature Mode number can be switched with the keys positive temp or negative temp Back 6 3 C Mode C Switch on and switch off of heating and readou...

Страница 80: ...uses the heating to be clocked 1 s on and 0 5 s off Heating test Switch on safety relay in mode b Switch on heating in mode C Alternating feedback E 1 and 0 in mode C Mode number can be switched with the keys positive temp or negative temp Back 6 3 d Mode d Position of mains switch Readout of position of mains switch auxiliary contacts for warm cold start recognition DE F A B C 37 C 35 C Horn off ...

Страница 81: ...egative temp Back 6 3 E Mode E Readout and setting of elapsed time meter Output of operating hours with possibility of adjustment DE F A B C 37 C 35 C Horn off Check F Mode number E flashing A B C D E Operating hours Operating hours can be adjusted with keys horn off and check Key horn off Selection of digit A B C D or E Key check Change digit Mode number can be switched with the keys positive tem...

Страница 82: ...rror INOP immediately after switch on INOP in self test INOP during operation Sensor warning Keypad error Others 6 4 1 1 INOP immediately after switch on Description Unit switches to INOP immediately after switch on Cause Operating voltage faulty Controller PCB defective Troubleshooting Test voltage supply see 4 4 3 1 Read out service LEDs on controller PCB see 6 3 3 Attempt to read out error list...

Страница 83: ...ing Read out and assess error list 6 4 1 5 Keypad error Description Pressed keys are not recognised Cause Keypad or keypad evaluation on display PCB defective Troubleshooting Test keypad and keypad evaluation Via service LEDs on controller PCB see 6 4 2 Test keypad see 4 7 3 2 6 4 1 6 Others Description Faults not covered by the above sections Cause Non monitored functions Displays defective o Mod...

Страница 84: ...6132 200 Babytherm 8000 Repair Instructions 04 01 Page 84 of 115 defective see 4 4 2 ...

Страница 85: ...tatus 4 Service LEDs on Controller PCB V1 V2 V3 V4 Processor ok RAM defective PCB Display INOP EPROM defective PCB Controller EPROM 4 Service LEDs Transformer Keyboard PCB Display PCB Power R22 F2 F1 V2 V11 during switch on test after swich on test Processor ok no key pressed V1 to V3 off 1 key pressed 1 LED flashes 2 keys pressed 2 LEDs flash 3 keys pressed 3 LEDs flash ...

Страница 86: ...roller PCB defective Remedy 1 Renew display PCB see 4 5 2 If 1 unsuccessful renew controller PCB see 4 3 LED V4 off Cause Voltage supply 5V defective Processor on controller PCB defective Remedy 1 Test voltage supply see 4 4 3 1 2 If 1 OK renew controller PCB see 4 3 During the course of operation Significance error Cause remedy LED V4 off Cause Voltage supply 5V defective Processor on controller ...

Страница 87: ...ent otherwise DE Error frequency max 15 displayed Error list can be read out in both directions with keys positive temp and negative temp Error list is deleted by pressing key horn off for more than 3 s Click on error number for viewing Acc Err10 Err11 Err12 Err13 Err14 Err15 Err16 Err17 Err18 Err20 Err21 Err22 Err23 Err24 Err25 Err30 Err31 Err32 Err50 Err51 Err53 Err57 Err58 Err59 Err60 Err61 Err...

Страница 88: ...dy 1 Renew EPROM D2 on controller PCB see 4 3 2 If 1 unsuccessful renew controller PCB Back 11 EPROM D2 on controller PCB defective Error recognition Check sum EPROM incorrect during operation Cause EPROM D2 on controller PCB defective Controller PCB defective Remedy 1 Renew EPROM D2 on controller PCB see 4 3 2 If 1 unsuccessful renew controller PCB see 4 3 Back 12 RAM on controller PCB defective ...

Страница 89: ...ck 14 Program run error on controller PCB Error recognition The program checks itself for correct program sequence Cause Interruption due to other error EPROM error Controller PCB defective Remedy In the event of no other hard errors as well 1 Renew EPROM see 4 3 2 If 1 unsuccessful renew controller PCB Back 15 EEPROM error on controller PCB Error recognition EEPROM test unsuccessful Cause EEPROM ...

Страница 90: ...ubleshooting See 6 2 9 Diagnosis mode A Remedy Renew controller PCB see 4 3 Back 18 Analog error Error recognition Short in several analog inputs at A D converter Troubleshooting Readout A D channels in service mode see 6 2 1 6 2 8 Remedy Renew controller PCB see 4 3 Back 20 Temperature measurement on controller PCB defective Error recognition Input of temperature channel 1 Vin0 is switched to tes...

Страница 91: ...roller PCB defective Error recognition Input of temperature channel 1 Vin0 is switched to test resistor 41 6 C during test however excess temperature comparator has not switched Troubleshooting See 6 2 1 Diagnosis mode 1 Cause Controller PCB defective Remedy Renew controller PCB see 4 3 Back 23 Excess temperature comparator on controller PCB defective Error recognition Input of temperature channel...

Страница 92: ...PCB see 4 3 Back 25 Gold cap voltage defective Error recognition The voltage of the gold cap capacitor on the power PCB is read in by the controller PCB with charging voltage off Troubleshooting See 6 2 7 Diagnosis mode 7 Cause Gold cap on power PCB defective Charging circuit on power PCB defective A D channel Vin 6 on controller PCB defective Activation deactivation of charging voltage on control...

Страница 93: ... A and b Check back signal heating on Switch off relay in mode A and read out heating check back signal in mode b Check back signal heating on relay defective Check back signal heating off relay OK Without diagnosis mode See 4 4 3 2 Cause Relay K1 on Power PCB defective Check back signal from Power PCB defective Read in of check back signal on Controller PCB defective Remedy 1 Renew Power PCB or R...

Страница 94: ...atus feedback on power PCB defective Actuation or read in of check back signal on controller PCB defective Troubleshooting In diagnosis mode see 6 2 A and 6 2 b Switch on relay and heating in modes A and b Check back signal heating on Switch off relay or triac in each case in modes A and b and read out heating check back signal in mode b Check back signal heating on Relay defective Check back sign...

Страница 95: ...ctive Troubleshooting Check Fuse F2 on power PCB In diagnosis mode see 6 2 A and 6 2 b Switch on relay and heating in modes A and b Check back signal heating on Without diagnosis mode See 4 4 3 2 Remedy 1 Renew power PCB see 4 4 2 If 1 unsuccessful renew controller PCB see 4 3 Back 50 Keypad and display driver on display PCB defective Error recognition The required display information from the RAM...

Страница 96: ... recognition Service jumper on controller PCB in position X12 1 2 recognised as being connected for more than 30 s Remedy 1 Move jumper to park position 2 3 2 If 1 unsuccessful renew controller PCB see 4 3 Back 57 Check key sticking Error recognition Key recognised as having been pressed for more than 30 s Cause Key on keypad defective Display PCB defective Remedy 1 If other keys function renew ke...

Страница 97: ... display PCB see 4 5 Back 59 Positive temp key sticking Error recognition Key recognised as pressed for more than 30 s Cause Key on keypad defective Display PCB defective Remedy 1 If other keys function renew keypad see 4 8 2 If 1 unsuccessful renew display PCB see 4 5 Back 60 Negative temp key sticking Error recognition Key recognised as pressed for more than 30 s Cause Key on keypad defective Di...

Страница 98: ...splay PCB defective Remedy 1 If other keys function renew keypad see 4 8 2 If 1 unsuccessful renew display PCB see 4 5 Back 70 Heating not connected or defective Error recognition Heating check back signal negative Cause Heating not connected Heating high impedance Power PCB defective Troubleshooting Heating connected Measure heating resistance approx R 4 8 ohms Remedy If heating OK renew power PC...

Страница 99: ...sembly defective Temperature measurement on controller PCB defective Vin 0 Troubleshooting Test sensors see 3 2 1 Test controller PCB see 4 3 Back 81 Temperature sensor defective high impedance Error recognition Temperature measured value too low Cause Sensor 2 first half high impedance on account of break in cable Cable connection between controller PCB and connector on cover of electronics assem...

Страница 100: ...sembly defective Temperature measurement on controller PCB defective Vin 2 Troubleshooting Test sensors see 3 2 1 Test controller PCB see 4 3 Back 83 Temperature sensor defective high impedance Error recognition Temperature measured value too low Cause Sensor 2 second half high impedance on account of break in cable Cable connection between controller PCB and connector on cover of electronics asse...

Страница 101: ...sembly defective Temperature measurement on controller PCB defective Vin 0 Troubleshooting Test sensors see 3 2 1 Test controller PCB see 4 3 Back 85 Temperature sensor defective short circuit Error recognition Temperature measured value too high Cause Sensor 2 first half high impedance on account of short circuit in cable Cable connection between controller PCB and connector on cover of electroni...

Страница 102: ...sembly defective Temperature measurement on controller PCB defective Vin 2 Troubleshooting Test sensors see 3 2 1 Test controller PCB see 4 3 Back 87 Temperature sensor defective short circuit Error recognition Temperature measured value too high Cause Sensor 2 second half high impedance on account of short circuit in cable Cable connection between controller PCB and connector on cover of electron...

Страница 103: ...Short circuit in temperature sensors Error recognition Temperature measured values at measurement location first half too high Cause Short circuit between sensors 1 and 2 second half Cable connection between controller PCB and connector on cover of electronics assembly defective Temperature measurement on controller PCB defective Remedy Test sensors see 3 2 1 Test controller PCB see 4 3 Back 90 Ex...

Страница 104: ...n controller PCB defective Sensors defective Troubleshooting See 4 2 Remedy Depending on cause Back 92 Excessive temperature difference Error recognition Temperature difference between the two measurement locations on the heating panel first and second half more than 5 0 C Cause If errors 90 and 91 not present Cold object on one half of heating panel Heating defective one half Troubleshooting Meas...

Страница 105: ...15 Error number Cause remedy 93 Excess temperature shutdown 41 6 C tripped Error recognition Temperature of more than 41 6 C mandatory shutdown of heating Cause External heat source Heating actuation defective Troubleshooting See 4 2 Remedy Depending on cause Back ...

Страница 106: ...ck key During the test run approx 3 seconds the F appears with a decimal point In the event of errors being detected the unit does not switch to INOP but rather merely stores the errors in the error list Readout errors with key and 7 Radiant heater 600W The radiant heater 600 W is not part of this documentation the radiant heater has its own service documentation ...

Страница 107: ...ent leads at least 6 x e g o Measurement lead red 1m 2 x 79 01 022 o Measurement lead black 1m 2 x 79 01 023 o Measurement lead red 0 25m 2 x 79 01 679 o Measurement lead black 0 25m 2 x 79 01 680 Test prods at least 6 x e g o Test prod red Kleps 30 4 x 79 01 026 o Test prod black Kleps 30 4 x 79 01 027 Test prods at least 2 x e g o Test prod red PP 130 79 01 024 o Test prod black PP 130 79 01 025...

Страница 108: ...79 01 966 8 3 Equipment for functional tests Temperature and moisture meter complete 79 01 148 From this set merely o Temperature and moisture meter 79 01 134 o Immersion type sensor 79 01 335 9 File for repair information and unit modification 9 1 New software version 1 02 07 94 The software 1 02 will be used as soon as the series production is started The software versions 1 00 and 1 01 used in ...

Страница 109: ... 9 3 2 Differentiation of units 9 3 3 Changes in TC or to testing following repair 9 3 4 Changes to components and assemblies 9 4 5 Conversion from type B to BF 9 3 6 Repairs and S parts 9 3 1 Future IEC Standard The future Standard for mattress heating IEC 601 2 35 as at 12 94 prescribes that the resting surface is no longer to be earthed and that class type BF Body Floating must be used The unit...

Страница 110: ...g repairs 9 3 3 Changes in TC or to testing following repair When performing protective conductor test a check must be made on the basis of the Babytherm rating plate as to whether the mattress heating class is type B or BF Type B There must still be a protective conductor connection to the aluminium panel of the resting surface there is no change to the test value of R 0 2 ohms Type BF There must...

Страница 111: ...pe B Alteration has already been made on some units of type B Foil heating 2M 20 876 with 3 pin connector 2 x heating Protective conductor Foil heating 2M 21 509 with 2 pin connector 2 x heating Important In future only the new heating panel 2M 21 510 will be available The new heating panel 2M 21 510 for type BF will then have to be converted to type B in the event of repair This will involve taki...

Страница 112: ...aken over from the defective control system The marking on the housing of the new control system is to be changed to type B and the order no from 2M 21 500 to 2M 20 880 Wiring diagram wiring harnesses There is no change to the cable connections between the PCBs The only alteration is to the wiring harnesses sensor adapter and heating adapter i e the two cable connections from the cover to the PCBs...

Страница 113: ...F 9 3 4 3 Power cord for mattress heating control This refers to the short internal mains lead 2M 21 220 between the triple socket in the Babytherm and the mattress heating control Type B Type BF Ferrite 18 34 967 required on cable No longer ferrite on cable If already fitted ferrite need not be removed 9 3 4 4 Operating instructions There are different operating instructions for types B and BF Ty...

Страница 114: ... 21 096 3 pin adapter cable without ferrite between heating connection on housing cover and power PCB Wiring harness Heating adapter 2M 21 507 2 pin adapter cable with ferrite between heating connection on housing cover 2 pin and power PCB 3 pin Wiring harness Sensor adapter 2M 21 094 Wiring harness with ferrite 18 31 577 between sensor connection on housing cover and controller PCB This cable can...

Страница 115: ... Important As regards the ordering of spares only parts for type BF will be available in future In the event of repair these parts can be converted to type B refer to Section 9 3 4 or to the appropriate component sections in 3 Heating panel with sensors and 4 Mattress heating electronics 9 4 Additional height adjustment extra high 02 95 On request the Babytherm 8000 OC Resuscitation Open Care Unit...

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