Service Manual - Hoffrichter GmbH
Contents
1. Actuator 240 V AC SDcard lt Switched mode power supply Control loop a a cea a a NS dA DU CC Power supply l I 12V DC jack 3 m 24V DC I 12 SEN Controller circuit board Fig 8 Block Diagram 5 2 HEATING OPTIONAL WHEN HUMIDIFIER IS CONNECTED The humidifier heating consists of the heating controller and heating plate The effectiveness of the respiratory air humidifier is adjusted via the heating power and the heating temperature This has the advantage that the thermal resistances which need to be overcome have no influence on the humidification result The adjustment range of the heating is between 65 C and 80 C In addition there is a thermal release next to the heating element which trips at a temperature of 98 C in the event of a fault 5 9 POWER SUPPLY The power supply is provided by an external switched mode power supply unit with a long range voltage input of 100 240 V 50 Hz 60 Hz 5 4 MOTOR CONTROL The pressure sensor is temperature compensated and is located directly on the controller circuit board It is a piezoelectric sensor measuring range 0 3500 Pa which continuously measures the actual pressure of the mask The setpoint pressure value is issued by the microcontroller The dif ference between these two values is corrected by the PI controller and the motor control Switching controllers are used to minimize power losses2. 5 5 MOTOR Contactless DC motor operating voltage 4 30 V electronically commutated 5 6 MICROCONTROLLER ATmega 2561 An ATmega 2561 microcontroller is used in the VECTOR et The key technical data are as follows e 256 Kbyte flash memory e Akte EEPROM memory e 8Kbyte RAM e programmable interfaces e an integrated A D converter 10 bit e 54 programmable pins 5 7 CLOCK The VECTOR et has a real time clock The real time clock is supplied by an internal battery CR2430 which offers an operating time of 8 to 10 years This battery supplies the IC with power when the device is disconnected from the mains With mains operation the clock is supplied with power by the power supply unit 6 SERVICING 6 1 PRELIMINARY STEPS 6 1 1 PROTECTIVE AGENTS AND DISINFECTANTS e Hand sanitizers e g Sterillium Bode e Disinfectant sprays e g Mikrozid AF Liquid e Surface disinfectants e g Mikrozid AF e Inthe case of medical devices exposed to hazardous contamination MRSA additional protec tive clothing such as disposable gloves a mask and a disposable apron and goggles should be worn IMPORTANT Where possible wipe disinfection is preferable to spray disinfection 6 1 2 TOOLS MEASURING EQUIPMENT AND AIDS The following equipment items are required for servicing e Service manual user s manual and servicing documents e PH1x200 Phillips screwdriver SMD adjusting screwdriver e Compressed air spray or sta
3. Unplug the mains plug Remove the humidifier where present Fixate the unlocking button of the humidifier by means of detachable adhesive tape Remove the filter cassette Place the device top down on a soft base and release the four screws on the housing using a Phillips screwdriver Stand the device upright again Hold the connector receptacle see Fig 5 on page 6 and remove the upper casing Put the upper casing to a safe place and secure it against falling and mechanical damages CALIBRATION 1 ADJUST DISPLAY CONTRAST Adjust display contrast as necessary using P1 6 5 2 MOTOR VOLTAGE gt O 0 Jm gQ FON Use the PC cable to connect the device to the PC Start the TRENDset PC software and click on the device at Found devices Go to Settings gt Service gt Log in in the menu bar Enter service as the User Name Enter user140372 as the Password Select the view Times and Counters Click on the button Calibration Follow the instructions in the window and click on the button OK Click on the button Start The calibration is performed automatically at 6 hPa Wait until the calibration is finished Either successful or Failed appears next to the Button Start If the calibration failed repeat the calibration by pressing the button Restart During the calibration make sure to close the flow resistor 6 mm properly If the calibration still fails co
4. 2 Checking display and contrast nenn nennen E E E nennen rrr de dra EEN 19 Opening Me re anheben rennen 13 AID ALI OAs P M LP 13 Adjust display COMMAS Tats nennen ee nehm hehe he 13 MOTOR VONAGE eM RN NE nee en hehe 13 SIT pnis tM E 14 Checking heating Cables eene nnne nen nnn nennen nenne nn 14 Assembling the nennen nennen nne nnne nennen nnn nnne nnn nnns 14 Checking Dutton TUMCTIONS u a sea an ab AFF ek 14 Resetting counters setting date and me 15 Restoring device eene nee n nnne nns 15 Checking electrical safety of power supply unt 15 SEET E 15 Disposal Mp 16 Device and e ell RT IT 16 mite scien ELIT 16 Batteries near VERE IR FRA FRE br VENT EL XM EYE REPE ERE 16 Accessories and wear Darts 16 Dispatch instructions for devices following maintenance or repair 16 Packaging tege Ee E NEE 16 EE 16 Spare TEE TELS 17 1 SYMBOLS IN SERVICE MANUAL Important information is denoted by symbols in this service manual Be sure to follow these instruc tions in order to avoid accidents personal injury and material damage In addition the local accident prevention regulations and general safety regulations in force in the area of use must be observed This symbol den
5. HOFFRICHTER Quality makes the Difference m m A E 2 U 2 O w um lt m nm w IE ITI lt m Ka Q ED Service Manual wo A 4 2 4 2 1 4 2 2 5 1 5 2 5 3 5 4 5 5 5 6 5 7 6 1 6 1 1 6 1 2 6 1 3 6 1 4 6 1 5 6 2 6 3 6 4 6 5 6 5 1 6 5 2 6 6 6 7 6 8 6 9 6 10 6 11 6 12 8 1 8 2 8 3 8 4 9 1 9 2 10 Symbols in service manual staia ee ee 3 General ito MME een eege 4 Safety ee ee 4 Description a edges ead a a aa Peron 5 Housing display and control elements oi en aa 5 Controller circuit Board P ETE 7 CPAP AUTO BIE VEL STE as nee D SIS SR E 8 Technical explanations 9 Block 9 9 Heating optional when humidifier is 9 ao eee MS 9 MOTOR COMTI m EAR EU 10 Msi c IT 10 Microcontroller Almega 2561 10 seq LE 10 SEINEN eect uua n se en ese nee dU eM 11 Preliminary steps RR 11 Protective agents and demtectamts een 11 Tools measuring equipment and aide 11 UMPACKINGPANG GISINTE CHING 12 Checking for external damage 12 12 ABUktest en nennen F r ee rent erinnere 1
6. The entire pressure range is now checked for pressure deviations The maximum deviation must not exceed 0 5 hPa If the maximum deviation is exceeded you should perform automatic zero point calibration of the pressure sensor To do so operate the device for min 2 hours in standby During this period the device continuously measures the ambient temperature and determines a correc tion factor that is used as a basis for the pressure sensor s zero point calibration system This also takes into consideration the ageing effect on the pressure sensor and other electronic components Perform zero point calibration at the same location as for performance of the ADU Test This will offer better results Then perform the ADU Test once again If the measured pressure devia tion still exceeds the maximum deviation limit contact the manufacturer 10 Close the ADU Test window 6 3 oO om D 6 5 5 5 CHECKING DISPLAY AND CONTRAST Press any key The display lights up with a brightness of 10096 Check the display to see whether all characters are shown correctly and complete The background of the display is illuminated and the display should be clearly legible in day light After 15 seconds the display fades to the basic brightness level selected in the device menu 0 100 The display should still be clearly legible If required the display contrast can be re adjusted via P1 with the device open OPENING THE DEVICE
7. a communal collection point 8 4 ACCESSORIES AND WEAR PARTS Disposal of accessories such as tubing masks filter cassettes and wear parts e g sealing gaskets and other replaced components must be carried out according to the statutory provisions in force at the area of use This also applies to contaminated accessories 9 DISPATCH INSTRUCTIONS FOR DEVICES FOLLOWING MAINTENANCE OR REPAIR The dispatch instructions apply to medical devices returned by the Service department to the cus tomer or distributor following maintenance or repair 9 1 PACKAGING FOR DISPATCH The device is packaged in PVC or PE bags tear proof The bag must be closed securely e g tape or cable ties The packaging should be sturdy and of the correct type and must not be contami nated Cardboard boxes must be carefully sealed with packing tape 9 2 DISPATCH The accompanying documents must state the following and be visible to the recipient Zu Ihrer Information Dieses Ger t wurde nur oberflachendesinfiziert Es erfolgte keine hygienische Aufbereitung For your information This device was disinfected only on the surface There was no hygienic preparation Shipment is effected via logistics companies 10 SPARE PARTS LIST Device Blower box 0000 2544 Controller circuit board for VECTOR et CPAP UNI III 0000 2251 Controller circuit board for VECTOR et AUTO UNI III 0000 2252 Controller circuit board for VECTOR et BILEVEL UNI III 0000 2253 Contr
8. able Power connection RS232 inerface 24V DC Fig 5 Opened Device back view 4 2 CONTROLLER CIRCUIT BOARD 4 2 1 CPAP AUTO BILEVEL BILEVEL ST20 RS232 circuit board ATmega 2561 SD card connection processor plug connection AUTO module Motor P1 Display Excess pressure Board Pressure Backup battery commutation contrast switch operation key sensor for internal clock Fig 6 Controller circuit board AUTO depends on the hardware version the device can have another circuit board layout or mounting 4 2 2 BILEVEL ST30 ST30 module RS232 circuit board ATmega 2561 SD card connection processor plug connection Pressure sensor ai d et FEES ney 1 OOO 8X8 Motor commutation P1 Display Excess pressure Board Backup battery contrast switch operation key for internal clock Fig 7 Controller circuit board BILEVEL ST30 depends on the hardware version the device can have another circuit board layout or mounting 5 TECHNICAL EXPLANATIONS 5 1 BLOCK DIAGRAM Patient E Le Humidifier Respiratory Gett lt Blower box 34 mask Keyboard gt Heating hae Ed control I 24V ooo Display Safety device Serial uC 7 interface gt 27 E analog 100 V AC Alarm 2 PI controller
9. ct against germs the surface of the device and where present the humidifier must be treated with a disinfectant immediately after unpacking 6 1 4 CHECKING FOR EXTERNAL DAMAGE Before starting the service check the device and where present the humidifier for external damage 6 1 5 DATA BACKUP Before starting the service perform a data backup 1 Connect the device to the mains power using power cable or power supply unit Use the PC cable to connect the device to the PC Start the TRENDset analysis software For security reasons make sure you save the device settings File gt Save as gi e ON Print out the device settings File gt Print and keep the printout for data recovery IMPORTANT Remove the SD card from the device as the device settings and the device memory of the SD card are not affected during the ADU test and calibration 6 2 ADU TEST Insert the flow resistor 6 mm in the air outlet opening 2 Connect the measuring tube of the flow resistor to the pressure measuring tube connection of the device 3 Disable the soft start function and the mask test on the device 4 Goto Settings gt Service gt Log in in the menu bar 5 Enter Service as the User Name 6 Enter user140372 as the Password Select the view Times and Counters 8 Click on the button ADU Test to open the ADU Test window 9 Start measurement by clicking on the button Start in the top right
10. lick on Send to store the settings in the device Select the view Device Settings necessary enter the patient data using the data backup printout Click on Send to store the settings in the device 6 12 CHECKING ELECTRICAL SAFETY OF POWER SUPPLY UNIT The device is equipped with protective insulation and only the power supply unit has to be checked for electrical safety In the course of automatic checking by a device safety tester the power supply unit is tested according to VDE 0751 1 DIN EN 62353 2008 as a power supply unit belonging to protection class Il The probe used to measure the device leakage current is connected to the GND of the DC input This is electrically connected to the secondary side of the power supply unit 7 FINAL STEPS After finishing servicing draw up a final report and affix a test seal showing the date and tester s ini tials to a suitable position on the device 8 DISPOSAL Proper disposal saves natural resources and prevents harmful substances being released into the environment 8 1 DEVICE AND COMPONENTS The device and its electronic components must not be disposed of with household waste They must be disposed of at a communal collection point or public waste disposal authority 8 2 PACKAGING The packaging can be disposed of with normal household waste 8 3 BATTERIES Batteries must not be disposed of with household waste They must be returned to the distributor or disposed of at
11. nd filter frame cover 0000 2028 Filter cassette 0000 2029 Filter frame cover 0000 2030 Therapy tube with integrated measuring tube 0000 7116 Stoppers for the measuring tube 4400 0012 Carrying bag 0000 2080 SD memory card 2GB 11200010 VECTOR et user s manual English 5000 0448 VECTOR et clinic brief instructions English 5000 0462 VECTOR et patient brief instructions English 5000 0455 Table 1 Spare part list device Humidifier AquaDROP et water container with heating plate 0000 2366 AquaDROP et closing cap 42100815 AquaDROP et air guide 0000 2314 AquaDROP et user s manual English 5000 0329 Table 2 Spare part list humidifier HOFFRICHTER GmbH C Mettenheimer StraBe 12 14 0123 19061 Schwerin Germany Telefon 49 385 39925 0 Telefax 49 385 39925 25 E Mail info hoffrichter de www hoffrichter de VECTOR et 2 140 service eng 220512 03
12. ntact the manufacturer 6 6 CLEANING Clean the inside of the device carefully using a brush and the vacuum cleaning device Use compressed air to clean areas which are not readily accessible Then remove loose parti cles with the vacuum cleaning device Remove stubborn dirt inside and outside the top section of the housing and in the opened device not circuit boards using a damp cloth and a solution of soapy water in a standard concentration Optional If a humidifier is present wash out the water container with water and apply 5 96 solution of vinegar to stubborn limescale 6 7 CHECKING HEATING CABLE Check that the heating cable is still intact and that the contact springs are not bent On assembly the heating cable must be protected from tension compression and clamping 6 8 ASSEMBLING THE DEVICE Only start assembly once all cleaning agents and disinfectants have dried completely 1 Check whether the RS232 circuit board is correctly in the guide rails and whether the connec tor receptacles are in the final position Check all tubing plug connectors and cable insulation inside the device for correct secure positioning as well as for any damage Rectify any defects Carefully fit the upper casing making sure that no cables or tubes are compressed or crushed and that the connector receptacles is properly inserted in the guide rails of the upper casing Check that the heating LED is correctly aligned Move the uppe
13. oller circuit board for VECTOR et BILEVEL ST20 UNI III 0000 2254 Controller circuit board for VECTOR BILEVEL ST30 UNI III 0000 2258 Display blind CPAP FLEXLINE 2200 0040 Display blind AUTO 2200 0041 Display blind BILEVEL 2200 0042 Display blind BILEVEL ST20 2200 0043 Display blind BILEVEL ST30 2200 0104 Display changing kit CPAP 0000 2395 Display changing kit AUTO 0000 2396 Display changing kit BILEVEL 0000 2397 Display changing kit BILEVEL ST20 0000 2398 Display changing kit BILEVEL ST30 0000 2337 Pressure switch 29 mbar for CPAP until SN ACBO80091 9 0000 2113 AutoCPAP until SN AGF0800288 Pressure switch 39 mbar for Bilevel until SN AJBO800105 00002114 Bilevel ST20 until SN AMCO800139 Board operation key with pressure switch 29 mbar CPAP from SN ADBO900920 0000 2118 AutoCPAP from SN AGI0800289 Board operation key with pressure switch 39 mbar BILEVEL from SN AIB0800073 0000 2119 BILEVEL ST20 from SN AMC08001 40 BILEVEL ST30 Battery CR2430 1600 0010 Power supply unit 0000 2020 Power supply cable 31100015 Air outlet 0000 2541 Sealing for air outlet 4210 0222 Unlocking button for humidifier 4220 0804 Disconnection mechanic 0000 2542 Connector air outlet 4210 0223 on off key 4220 0826 Device foot 4210 0826 Upper casing 0000 2244 Lower casing 0000 2246 RS232 socket DC connector 0000 2241 Memory card module 25200115 Connecting cable memory card module 3220 0093 Filter cassette complete filter cassette a
14. ons for use When new goods are received by the Service department the documents sup plied with the device must be checked Devices contaminated with MRSA must subjected to hygienic preparation according to the validated KR1000 edusy preparation procedure All other devices are prepared according to the VECTOR et hygiene concept Special hygiene measures are advisable when performing maintenance or repairs on devices contaminated with MRSA methicillin resistant Staphylococcus aureus In this case protective clothing such as disposable gloves mask and disposable apron should be worn without fail Hygienic preparation according to the validated KR1000 Keredusy preparation procedure must be carried out before performing maintenance or repair 4 DESCRIPTION OF DEVICE 4 1 HOUSING DISPLAY AND CONTROL ELEMENTS Heater LED Programing key Info key Enter key Programing ke Heater key 9 27 Unlocking button on off key for humidifer Fig 1 Top view Connection for Contact socket Air outlet with measuring tube for humidifier inside sealing Fig 2 Opened device front view Ba Circuit board SD card SD card slot Fig 3 Opened Device side view from right Motor cable Heater cable plug connection plug connection Heater LED 5W4 70J CGS 10 03 Fig 4 Opened Device side view from left Circuit board RS232 Piezo signal transmitter Connector receptacle RS232 data c
15. otes general safety instructions Follow these instructions to avoid accidents personal injury or material damage ACAUTION This symbol denotes hazardous situations that may lead to moderately severe injuries NOTICE This symbol denotes situations that may lead to material damage or damage to the device IMPORTANT This symbol denotes information tips and instructions for the efficient error free use of the device 2 GENERAL INFORMATION Before starting maintenance read this service manual through carefully Observe the user s manual as well as the warning and safety instructions it contains There is a risk of short circuiting due to the capacitors present in the device including when de energized Repair and maintenance may only be carried out by qualified authorized and competent specialist personnel When servicing is performed at the patient s home the patient should be warned of the risk This manual refers solely to VECTOR et devices It does not deal with therapy tubing and masks If an accessory is suspected of being defective it should be visually inspected by the service technician and the result recorded in the servic ing report 3 SAFETY INFORMATION For hygiene reasons we recommend wearing disposable gloves whenever work ing on the device Before further work the surface of the device must be treated with a disinfectant When doing so observe the manufacturer s safety instruc tions and instructi
16. r casing into its final position and turn over the device while pressing the two sections together Set down on the soft assembly base Use a Phillips screwdriver to screw the two casing parts of the device together Insert the filter cassette Insert the SD card 6 9 CHECKING BUTTON FUNCTIONS Check that the turbine switches on and off properly when the on off button is pressed Check that all buttons function properly They must not jam and should return to their original position after being pressed Insert the humidifier until it perceptibly clicks into place Release the mechanism by pressing the unlocking button and then detach the humidifier again It should be possible to attach and detach the humidifier with little effort When the humidifier is attached press the heating button on the display to check that the selected heating level is indicated and that the LED lights up 6 10 RESETTING COUNTERS SETTING DATE AND TIME 6 oa fF ob NO af ON gt Use the PC cable to connect the device to the PC Start the TRENDset analysis software and open the connected device under Found devices Select the view Times and Counters Reset the filter counter if the filter was changed Reset the blower runtime if the blower box was changed Reset the date and time if necessary Click on Send 11 RESTORING DEVICE SETTINGS Select the view Patient Data If necessary enter the patient data using the data backup printout C
17. tionary compressed air connection e Soft brush and vacuum cleaning device e Soft base e Disposable gloves e Therapy tube 1 80 m long with 22 mm therapy tube connection as per ISO 5356 1 e Flow resistor 6 mm with measuring tube art 00007302 e Voltmeter multimeter e Pressure measuring device e g HOFFRICHTER APM art no 00004832 e Power supply unit or similar min 24 V 2 1 A DC or external power supply unit e Device for testing electrical safety e g SECUTEST SIII DIN EN 62353 2008 e PC with following system requirements MS Windows 98 2000 NT4 0 ME XP Server 2003 Vista or 7 AMD Athlon Pentium class x86 clock frequency 700 MHz min 192 MB system memory for MS Windows 98 NT4 0 ME min 400 MB system memory for MS Windows 2000 XP Server 2003 Vista or 7 min 400 MB free hard drive space Microsoft NET Framework 2 0 Redistributable x86 2 MB graphics card min High Color 16 bit Mouse 1 free COM interface per device 1 free SD interface only when using DATAbox e PC cable RS232 adapter cable art no 00005232 e HOFFRICHTER TRENDset analysis software e Cleaning agent for cleaning surfaces e g solution of soapy water in a standard concentration ACAUTION All tools measuring equipment and aids possibly exposed to contamination must cleaned after they have been used and treated with disinfectant 6 1 3 UNPACKING AND DISINFECTING ACAUTION To prote
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