Spirolab II - Frank`s Hospital Workshop
Contents
1. To simplify component identification they are marked in the attached drawing of the components layout of the Printed Circuit Board PCB MIR 009 rev 3 The revision number of the PCB is indicated on the component side on the lower right next to the battery pack Comp ID Desertptiotm a eve er ara d Pure ca ba qund eed No in drawing BTI Lithium battery for data retentions siccesiiecssevissscacevaesesnvanesiageerscdercedevnaves 8 CNI RS232 serial communication poft earn bee tope oir Ih rente 23 CN2 Connector for the optoelectronic turbine head ssssse 1 CN3 Connector for backlight supply of the LCD ssssss 18 CN4 Connector for the display data cable 17 CN6 Connector for the thermistor of the battery pack 13 CN8 Flatcable for the Key boat ise eodera hoec ea eher 35 CN9 Flatcable for the keybOSE iua dio nao otio tione Ero vix res 34 CNA Connector for supply data transmission and printer ligad temper atllfe nao ococt k o Tov tto tea resa qur toa ede be E halal Cicada weed 5 CNB Connector for power supply of the printer motor sssse 3 CNC Connector for sensor that checks the papet c cccccsseeeseeeteeeteeeeees 7 FUSI 2 A battery charging controller fuse on the mainboard 15 FUS2 4 A tuattiboatd fusen an d potter peste Rhe ep a OR Aa ia 12 ICI lile ceroiiiiroll is rc 29 IC6 SRAM memory 4 MDit es2. 3 GENERAL 1 3 1 Technical Data 1 3 1 1 Battery charger 1 3 1 2 Spirolab unit 1 4 Standards Applied 2 HARDWARE DESCRIPTION BLOCK DIAGRAM 2 2 MAINBOARD MODULE 2 2 1 Jumpers 2 2 2 Charging controller for battery pack 2 2 3 Room temperature sensor 2 2 4 RS 232 communication port 2 3 Display module 2 4 Printer module 2 5 Keyboard module 2 6 Turbine flowmeter 3 MAINTENANCE 3 1 GENERAL 3 2 TEST EQUIPMENT 3 3 CHECKLIST 3 3 1 Functional test 3 3 1 1 Self Test 3 3 1 2 Software version 3 3 1 3 Hardware control NI A Oc OC A a fF A A A WO UC Ww oo o o OC Eo Emo m Eo m m N N N Rm E m om om om om uU a aaa OI 16 Page 31 of 33 MIR srl Spirolab Spirolab II Service Manual 3 4 REPLACEMENT PROCEDURES 3 4 1 General 3 42 Cover 3 4 3 Printer 3 4 4 PCBs and components 3 4 4 1 Keyboard 3 4 4 2 Complete PCB unit mainboard keyboard 3 4 4 3 Components 3 4 5 Membrane keyboard 3 4 6 Display 3 4 7 Battery pack 3 4 8 Optoelectronic head 3 4 9 Turbine 3 5 ADJUSTMENT PROCEDURES 3 5 1 Spirolab unit 3 5 2 Turbine flowmeter 4 SPARE PARTS 4 1 ORDERING 4 1 1 Ordering PCB s 4 1 2 Warranty claims 4 2 Return shipments 5 TROUBLESHOOTING 5 1 The device does not switch on 52 The LCD does not display 5 3 The battery charging is not working correctly 5 4 The lithium backup battery indicates discharged 5 5 The printer does not print 5
3. 6 The printer makes noises 5 7 The device does not measure at all 5 8 The device does not measure correctly 5 9 The data communication via RS232 does not function 5 10 Index of components APPENDIX A SPARE PARTS LIST APPENDIX B SERVICE INFO S Product Change Notes REVISION HISTORY COMPONENT LAYOUT 16 16 17 17 17 17 17 18 18 18 18 18 19 19 19 19 20 20 20 20 20 22 22 22 23 23 23 24 24 24 25 27 28 29 30 33 Page 32 of 33 16 17 18 i T1 CN C TA Hieoj cs4 B 1425 PCB MIR 009 Rev 3 Component Layout NAM E S Ez 93688568 Rss ES Tm CNB 1c10 OE x UB 3 2 s picie Ls Ee 4 e aA C 1Cc3 8 BT2 f pi re fee id Page 33 of 33 36 35 34 33 132 31 30 29 28
4. more the humidity differs the grater is the deviation of the calculated values M Check the accuracy with the calibration syringe Make several tests FVC at different in and expiration speeds Check the measured volume It may differ 3 or 50 ml depending on which value is bigger i e using a 3000 ml syringe the measured valued must be between 2910 and 3090 ml using a 1000 ml syringe between 950 and 1050 ml M Check the voltage on the ambient room temperature sensor IC 12 Open the spirolab refer to par 3 4 2 The voltage on pin 4 of C 13 must be 100 mv C i e 2 5 V for an ambient temperature of 25 C 1 1 1 1 1 1 1 5 9 THE DATA COMMUNICATION VIA RS232 DOES NOT FUNCTION MI Check the cable if there are any visible damages M Check the RTS function for line power supply Open the spirolab refer to par 3 4 2 During the RS232 transmission measure the voltage between pin 7 and pin 5 ground of the connected device of CN1 It must be high level between 3 and 12 V M Check data transfer while transmitting data from spirolab on the RS232 port this requires an oscilloscope with memory Note Make sure that you have connected the oscilloscope s ground of the IN connected device PC printer modem etc at pin 5 of CNI Press the key PC connection function to start a process that sends the whole SRAM data via the RS232 port This process endures about 10 minutes but can
5. next to the chassis 3 4 3 Printer The printer motor could be very hot Do not touch Removal See para 3 4 2 for removal of the cover Remove the paper out of the printer Remove the screws which fix the printer to the chassis Disconnect the wiring which connects the printer to the mainboard from connectors CNBI CNC and CNAI Remove the printer 3 4 4 PCBs and components 3 4 4 1 Keyboard Removal See para 3 4 2 for removal of the cover Remove the screws which attach the keyboard to the cover Disconnect the mainboard with a soldering iron and take off the keyboard 3 4 4 2 Complete PCB unit mainboard keyboard Removal See para 3 4 2 for removal of the cover See para 3 4 3 for removal of the printer Remove the screws which attach the PCB to the chassis Remove the screws which attach the keyboard to the cover Lift it up on the battery side and after having reached an almost nearby vertical position remove it Page 17 of 33 MIR srl Spirolab Spirolab II Service Manual 3 4 4 3 Components Caution If any solderings especially on SMD para ts are to be made make sure that your tools are suitable for such precision work Removal See para 3 4 2 for removal of the cover See para 3 4 3 for removal of the printer Remove the screws which attach the PCB to the chassis Remove the screws which attach the keyboard to the cover Lifting it on the battery s side and after having reached a nearby vertical
6. otio iacent ar e ere rr eiue 28 IC9 Driver for the paper s THOLO eerte sas ori aperti eel ame AR ndi tane 2 IC10 Driver for the paper s TOLOD uia eae aterert pacato erit p taies 4 IC11 Optocoupler for printer head and motor power supply enable 6 IC12 Ambient room temperature sensor 26 IC13 Operational amplifier for ambient temperature sensor IC12 25 IC14 Hex inverter with Schmitt tro S6r yo iom eto ree cre tune rk ad rr no epu 21 IC 22 Voltage regulator 3 3V output for display controller IC21 31 IC23 I O decoder for display controller 1C21 ssssssse 33 IC24 Dx pec ETT 19 IC29 Voltage regulator 5V output for device switch on 27 IC34 RESET and data retention controller eese 9 JP1 Jumper selector to program the EEPROM sseeee 20 JP2 Jumper for adjusting the battery charging termination mode 14 L1 Inductor for turbine signal filter seen 24 L2 Inductor for turbine signal filtet iieceee rt peciit nra rer egt 22 L6 Inductor for the DC AC converter of LCD backlight 16 NEG pole Negative pole of the NiMH battery pack 30 POS pole Positive pole of the NiMH battery pack sees 36 RI RSIBIOE eons cecidere cian E ED ode LM iE 32 SJI Jumper for connecting the battery pack with the unit 10
7. turbine Check the cable for any visible damage For information about maintenance cleaning and sterilization please refer to the relevant paragraph in the User s Manual THE DEVICE DOES NOT MEASURE CORRECTLY Check if any obstacle is disturbing the free rotation of the turbine For information about maintenance cleaning and sterilization please refer to the relevant paragraph in the User s Manual Check the turbine s power supply Open the spirolab refer to para 3 4 2 Remove the printer refer to para 3 4 3 Press FVC to activate the turbine s power supply Check the voltage on pin 7 of CN2 connector It must be 5 V This signal is 0 V when FVC measurement is terminated Check the turbine s signal This requires an oscilloscope Open the spirolab refer to para 3 4 2 Picking up the signal before L1 while z blowing into the turbine you see the original pulse signal at approx 4V see the picture on the right Behind L1 the signal must be more clearly at approx 4V On pin 12 of IC 14 you must see this signal inverted and squared at 5 V The same procedure is to be made at L2 and pin 10 of IC 14 Inspiration Exspiration Page 24 of 33 MIR srl Spirolab Spirolab II Service Manual M Check the conversion factors for BTPS 25 C 2 35 C I C 35C 1 043 4 C 25C 1 092 Note The indicated values are calculated for a humidity of 5096 The
8. 601 1 2 standards 1 3 1 Technical Data 1 3 1 1 Battery charger Battery charger supply 115 VAC 220 240 VAC Permissible mains voltage var 15 115 V 10 220 240 V Mains frequency 50 60 Hz Max current 1Aat12 V 1 3 1 2 Spirolab unit Max current inside the unit 3 2 A during printing Internal fuses T 2 A FUS1 SMD battery charge controller T4 A FUS2 SMD main fuse Internal batteries Ni MH for main power supply 6x1 2 V 4 Ah Lithium for data backup 1x3 6 V 370 mAh Approval CE 0476 EC mark for Medical Devices Dimensions 310x200x65mm Weight 1 9 kg including battery pack Volume range 10 L BTPS Flow range 16 L s BTPS Volume accuracy 3 or 50 mL Flow accuracy 596 or 200 mL s Dynamic resistance at 12 L s lt 0 8 cmH20 L s Type of electrical protection Class 2 appara atus Level of protection against direct or indirect contact Category BF appara atus Level of water ingress protection Common appara atus Level of assurance of use in the presence of an anaesthetic mix flammable with air or oxygen or protoxide of nitrogen Appara atus not suitable Conditions of use Appara atus for repeated use Storage conditions Temperature MIN 0 C MAX 40 C Humidity MIN 10 RH MAX 95 RH Operating conditions Temperature MIN 10 C MAX 40 C Humidity MIN 10 RH MAX 95 RH Page 6 of 33 MIR srl Spirolab Spirolab II Service Manual 1 4 STA
9. C 34 It must be 5 V MI Check the backup power supply lithium battery Measure the voltage on pin 32 of IC 6 When the unit is switched off it must be 3 6 V equal to the voltage of the lithium battery BT1 When the unit is switched on it must be 5 V Check the voltage on pin 3 of IC 22 It must be 3 3 V MI Check the voltage on pin 5 of CN 4 It must be 5 V 5 3 THE BATTERY CHARGING IS NOT WORKING CORRECTLY M Check the battery charger Make sure that the main power supply s jack is correctly attached to the plug Check the cable for visible damage The voltage between the inner and outer parts of the jack must be 12 V M Check the internal power supply Open the spirolab refer to para 3 4 2 Measure the voltage behind the fuse FUS1 on the point indicated on the attached drawing It must be approximately 12 V M Check the thermistor Open the spirolab refer to para 3 4 2 Remove the thermistor cable from connector CN6 The resistance of the thermistor must be about 10 kQ at room temperature 23 Replace the thermistor cable firmly to the connector CN 6 MI Check the red LED CHARGE LED Open the spirolab refer to para 3 4 2 Check the voltage on pin 4 of CN 9 Flexstrip It must be 1 8 V 5 4 THE LITHIUM BACKUP BATTERY INDICATES DISCHARGED M Check the voltage of the lithium battery Open the spirolab refer to para 3 4 2 Check the voltage of the battery BT1 at SJ1
10. NDARDS APPLIED According to rule 10 of the European directive 93 42 CEE the device is classified as Class IIa EN 60601 1 Electronic medical appara atus Para t 1 General safety standards EN 60601 1 1 Electronic Medical appara atus Para t 1 General safety standards 1 Collateral standard Safety requirements for medical electronic systems EN 60601 1 2 Electronic medical appara atus Para t 1 General safety standards 2 Collateral standard Electromagnetic compatibility Requirements and tests EN 60601 1 4 Electronic medical appara atus Para t 1 General safety standards 4 Collateral standards Programmable medical electronic systems ERS The European Respiratory Journal Standardised Lung Function Testing Volume 6 Supplement 16 March 1993 ATS Standardisation of Spirometry 1987 Update American Review of Respiratory Disease 136 pp 1285 1298 1987 ATS Standardisation of Spirometry 1994 Update American Review of Crit Care 152 pp 1107 1136 1995 Page 7 of 33 MIR srl Spirolab Spirolab II Service Manual 2 HARDWARE DESCRIPTION Because of the modular design of the spirolab the description is on a block diagram level The spirolab consists of six modules Mainboard module Keyboard module Display module Printer module External turbine flowmeter External battery charger BLOCK DIAGRAM DISPLAY MODULE MAINBOARD MODULE OWMETER Batteries IURBINE FL
11. OWMETER harging controller Optoelectronic head urbine PRINTER MODULE Mouthpiece adaptor 12 V BATTERY CHARGER 3 KEYBOARD MODULE Page 8 of 33 MIR srl Spirolab Spirolab II Service Manual 2 1 2 2 MAINBOARD MODULE The mainboard module translates the input signal from the turbine flowmeter into spirometry values and compara es them with the predicted values calculated with the para ameters age sex height weight and ethnic group Test results are displayed on a LCD and can be printed on paper Spirometry test data are stored into memory and are available for later use The mainboard module includes Battery pack 6x1 2V NiMH for device supply Lithium battery 3 6V for data backup SRAM and RTC Charging controller for battery pack DC power supply controlling circuit Microcontroller including EEPROM with boot program FLASH memory with boot and application software SRAM memory with device configuration and spirometry data RTC real time clock Thermal Printer driver Graphic LCD driver Measuring controller for flow volume and ambient temperature Ambient temperature sensor to enable conversion from ATP to BTPS conditions Serial RS 232 bidirectional communication port with optoisolation 4 KV for connection to a PC external printer modem etc 2 2 1 Jumpers On the mainboard are four jumpers the position of these jumpers is of crucial importance for the
12. Page 20 of 33 MIR srl Spirolab Spirolab II Service Manual A Note Any instrument of accessory returned must be accompanied by a clear and detailed explanation of the defect or problem found Page 21 of 33 MIR srl Spirolab Spirolab II Service Manual S TROUBLESHOOTING Note Where not indicated voltages are measured versus the ground i e the negative pole of the battery pack Note Where not indicated voltages are measured while the unit is switched on Note Where not indicated the values to be measured can vary by about 2 Be careful not to short circuit any contacts while measuring voltages Batteries may explode if defective or damaged or disposed of in fire Do not short circuit the batteries 5 1 THE DEVICE DOES NOT SWITCH ON MI Check the voltage of the internal battery pack Open the spirolab refer to para 3 4 2 Measure the voltage between the two poles of the battery pack it must be between 6 V low battery and 8 V full charged MI Check the internal power supply The voltage on pin 3 of IC 29 must be 5 V The voltage on pin 3 of CN 9 for the ON LED must be approx 1 8 V Mi Ifthe battery charger is connected Check the battery charger Make sure that the main power supply s jack is correctly attached to the plug Check the cable for visible damage The voltage between inner and outer part of the jack must be 12 V Check the internal power supply Open the spirolab r
13. SJ2 Jumper for connecting the Lithium battery with the unit 11 Page 27 of 33 MIR srl Spirolab Spirolab II Service Manual APPENDIX A SPARE PARTS LIST Product description Product Model Pack code Quantity Axis for paper roll 340832 SLI SLII Battery pack 6 x 1 2 V 4 Ah 972301 SLI SLII rechargeable internal Lithium battery 3 6 V 970232 SLI SL II Battery charger 220V 920665 SLI SL II 1 Battery charger 110V 920675 SLI SLII Buzzer BZ 1 560020 SLI SL II Carrying case soft 672685 SLI SL II Display black white complete 660591 with flat connecting cable Display colour FSTN complete 660056 SL II with flat connecting cable Flat cable to connect display to 450100 SLI SLII PCB Fuse F1 2 A SMD 0805 270464 SLI SL II 1 Lee E DSC eae REMISE 36 Fuse F2 4 A SMD 0805 270468 SLI SLII LED orange for PCB keyboard 251900 SLI SLII LED green for PCB keyboard 251906 SLI SLII Membrane keyboard 221540 SL Il Optoelectronic turbine holder with 910012 SL Il cable without turbine flow meter Paper roll for printer 910350 SL II PCB keyboard without mainboard 450055 SLI SLII PCB mainboard without LCD 001040 SLI SLII display and without printer Plastic case ABS blue complete 301040 SLI SLII including screws RS232 cable spirolab to PC 671492 SLI SL II RS232 port CN 1 124556 SLI SL II Rubber feet set of 4 301301 SL II Serial Parallel printer converter 910110 SLI SLII Thermal printer 660075 SLI SL II Tran
14. Spirolab Il Service Manual Service Manual Rev O Prepared by Arne Langenkamp Date 06 04 01 Approved by Paolo Sacco Boschetti Date 06 04 01 ATI S P M e X un gt MIR O a u O ve T MIR srl Spirolab Spirolab II Service Manual 1 INTRODUCTION 1 1 INTRODUCTORY REMARKS 1 1 1 General Aspects The spirometers from the product group MIR 010 are marketed under the labels spirolab and spirolab IT The main difference between the 2 models spirolab and spirolab II is principally an LCD display in colour in the model spirolab II while the model spirolab has a black and white LCD display From here onwards for the sake of brevity where not indicated differently with the wording spirolab we refer to all models of the product group This manual has been written for the technicians involved in the service of the spiro lab Service can be carried out by the service organization of the manufacturer or by any other technician authorized by MIR srl The manufacturer will not be held responsible for the results of maintenance or repairs by unauthorized persons 1 1 2 Safety Aspects Safe execution of the procedures in this manual requires technical experience and general knowledge of safety precautions Before you start any operation on the unit you must have first read both the User s and this Service manual Warnings Cautions and Notes are used throughout this manual to bring special matters to the immediate attent
15. a 3 cables a4 pin flat cable for driving the motor for paper advance a4 pin flat cable for the sensor that checks that paper is inserted 28 pin flat cable for supply data transmission and checking the temperature of the printer head to avoid overheating 2 5 KEYBOARD MODULE The keyboard module constitutes the interface between user and unit It is connected to the mainboard via two 15 pin flat cables CN 8 CN 9 When the unit is switched off the only active key is the red ON OFF key which allows the unit to be switched ON or OFF manually 2 6 TURBINE FLOWMETER The sensor for measuring flow and volume is the same one already used in other spirometers produced by MIR Series MIR 001 Mod spirobank and spirobank G The turbine flowmeter consists of three mechanical and two electrical para ts Mechanical parts optoelectronic head with IR sensor turbine mouthpiece adaptor Electrical parts Two pairs of infrared transmitters receivers positioned as shown below A signal conditioning circuit to rectify the output signal from the two infrared light receivers The rotation of the rotor causes the interruption of the infrared beam thus creating a pulse signal which has a frequency directly proportional to the flow The measurement of the air flow which passes through the tube is therefore propor tional to the number of interruptions of the infrared beam Page 12 of 33 MIR srl Spirolab Spirolab II S
16. al Ready DTR 5 Signal Ground GND 6 NC 7 Request To Send RTS 8 NC 9 NC NC Not connected The voltage of the signals according to this standard is in the range of 3 to 12 V for High Level true value and 3 to 12 V for Low Level false value Note Because spirolab is isolated from the connected device by optocouplers there are two electrical grounds For internal measurements before the signal reaches the optocouplers there is an internal ground i e the negative pole of the battery pack For measurements between the optocouplers and the connected device you must use the external ground which is different i e pin 5 of CNI 2 3 DISPLAY MODULE Page 11 of 33 MIR srl Spirolab Spirolab II Service Manual The display module displays patient data user set para ameters and test results It is attached to the body with a hinge and allows an adjustment in angle in a range up to 160 with respect to the chassis The display version depends on the purchased model Graphic B W type FSTN LCD 320x240 pixel spirolab Graphic 16 colour type FSTN LCD 320x240 pixel spirolab II It is connected to the mainboard with a 16 pin flat cable while the backlight supply is provided by a 2 wire cable 2 4 PRINTER MODULE The printer module carries out a printout of the patient data and spirometric results The printer is a thermal printer and requires thermal printing paper The printer is connected to the mainboard vi
17. al safety precautions for handling tools and the use of electricity incorrect or unreasonable use 1 1 4 Environmental Aspects Please dispose properly of any items replaced following all the local regulations All components housing PCBs batteries printer electronic and disposable para ts etc must be disposed of according to the relevant local regulations 1 2 DATA REGISTRATION 1 2 1 Equipment and customer registration Service file From the point of view of safety and product liability the following data must be re gistered for each unit Equipment data model and serial number Customer data date of purchase name and full address of the customer Service data log of all service activities Configuration data the actual configuration of the equipment hardware and software versions The distributor through their dealer and or service organization if any is responsible for maintaining these record and they must be able to provide these data when reques ted 1 2 2 Configuration register A configuration file gives the serial numbers and or batch numbers of main sub assemblies and or important para ts of each unit The para ts listed in a configuration file are defined as registered para ts For example para ts as mainboards keyboards battery packs and internal software Note MIR srl has the original configuration file of each unit sold Any possible changes in the original configuration o
18. be interrupted at any time by pressing E3 Pick up the data stream at pin 2 of CN1 You must see pulses at 9600 baud 9600 bit sec at a voltage in the range of RS232 standard refer to 2 1 1 4 Page 25 of 33 MIR srl Spirolab Spirolab II Service Manual MI Start the application to update the internal software The process must begin with the signal flow shown below The voltage of the signals must be between High and Low level following the RS232 standard refer to 2 1 1 4 Tx PC i i Pe E Et STRE Hoa Pot CSI S Hosp act ai Rx PC A PC drives TX and DTR signals to a default state A B PC transmit 500 bytes continously and spirolab switches automatically on C PC drives the DTR signal Low D spirolab responds transmitting a byte E PC drives the DTR signal High F PC drives the DTR signal Low G spirolab responds transmitting a second byte H PC transmits a command byte to start the flash erasing process The same signals can be picked up behind the optocoupler TX of the PC on pin 4 of IC 14 DTR ofthe PC on pin 2 of IC 14 TX of the spirolab RX of the PC on Pin 6 of IC 14 Note For this measurement you must connect the oscilloscope s ground to the spirolab s ground i e the negative pole of the battery pack In this case the signals are at logic level 0 5 V Page 26 of 33 MIR srl Spirolab Spirolab II Service Manual S 10 INDEX OF COMPONENTS
19. correct functioning of the spirolab SJ1 connects the Lithium backup battery with the mainboard Removal will cause a loss of all data both configuration and test data SJ2 connects the NiMH battery with the mainboard If this jumper is removed the unit is disconnected from the battery power supply JP1 enables you by setting a jumper to program the EEPROM inside the microprocessor via the serial RS232 port JP2 enables you to switch between three modes to terminate the charging process These are further explained in the next para agraph Only in the case of a replacement procedure then removal of all jumpers is recommended to avoid unforeseen damage to the mainboard and or to components 2 2 2 Charging controller for battery pack The charging controlling circuit used in the the spirolab ensures a fast charge and optimum condition of the battery pack providing that the battery temperature and voltage are within the preset limits Temperature voltage and time are all monitored throughout the fast charge process Page 9 of 33 MIR srl Spirolab Spirolab II Service Manual The charging process itself is automatically initiated in two situations l After connecting the battery charger to the unit 2 When the unit is switched on the battery charger is connected and the voltage level of the battery is below a preset limit In this situation the LCD indicates the low battery status with two red lines The fast charging proce
20. d 2 If everything is in order battery temperature temperature rising battery voltage etc then the fast charging process starts the red LED lights continuously In the following 10 minutes the battery is charged at a lower rate to initialize slowly the chemical reaction inside the battery pack After about 10 minutes high frequent pulses at the full current rate of 1A charge the battery 3 At the end of the regular charging process the green LED DONE LED lights continuously Now it can be assumed that the battery 1s full charged 4 If after completing the charging process the battery charger is still connected a so called Pulse Trickle Function is activated that gives a very low charge to com pensate the self discharging of the battery while it is idle connected to the charger 2 2 3 Room temperature sensor Transducer of temperature voltage IC 12 NATIONAL LM 35 to measure the ambi ent room temperature to enable the calculation of the BTPS conversion factor The output signal amplified through an operational amplifier IC 13 100 mV C is connected to one of the A D channels of the microprocessor IC1 line ROOM T pin 35 2 244 RS 232 communication port Bidirectional serial port controlled by the microprocessor via its serial port Towards the PC the port has 9 lines configured according to the EIA RS232 Standard Pin Description Received Line Detector 2 Receive Data RX 3 Transmit Data TX 4 Data Termin
21. efer to para 3 4 2 Measure the voltage behind the fuse FUS1 on the point indicated on the attached drawing It must be approximately 12 V MI Check the voltage on R1 It must be 5 V MI Check the voltage on pins 2 and 3 of IC 24 They must be 0 V MI Check the voltage on L6 It must be 5 V 52 THE LCD DOES NOT DISPLAY In order to prevent unforeseen incidents keep away from sensitive electronical devices Feeding the display high voltage is present max 450 V but at very low current max 6 mA so that this represents no danger for healthy persons with experience and general knowledge of safety precautions In exceptional cases these high voltage may interfere with sensitive electronical devices MI Check the data connection Open the spirolab refer to para 3 4 2 Check the flat cable CN 4 Check if the connector CN 4 is closed Check if the adhesive protection on CN 4 is attached M Check the mainboard s function Open the spirolab refer to para 3 4 2 Switch on the device Page 22 of 33 gt gt MIR srl Spirolab Spirolab II Service Manual Check the voltage between pin 1 and 4 of CN 3 This requires an oscilloscope The amplitude peak to peak must be approximately 400 V at a frequency of approx 60 kHz M Check the voltage on pin 7 of CN 4 This must be between 20 and 24 V depending on the regulation of the display contrast MI Check the voltage on pin 7 RESET signal of I
22. ervice Manual SEY LI L RX1 TX2 TURBINE RX2 TX1 The phase difference Aq positive or negative between the signals from each of the two infrared receivers IR 1 and IR 2 depends upon the direction of rotation of the moving rotor and therefore supply the information of the direction of the air flow expiration or inspiration In detail Ag gt 0 for expiratory flow Ag 0 for inspiratory flow Page 13 of 33 MIR srl Spirolab Spirolab II Service Manual 1 PULSE 2 PULSE Ag lt 0 gt Inspiratory flow 1 PULSE 2 PULSE Ag gt 0 gt Expiratory flow K FLOW AT The two pulse trains are squared by a Schmitt trigger IC 14 and then sent to two input ports of the microprocessor IC1 pins 83 and 84 The microprocessor has the possibility to switch the turbine on or off IC1 pin 78 and Q1 Page 14 of 33 MIR srl Spirolab Spirolab II Service Manual 3 MAINTENANCE 3 1 GENERAL We recommend checking the spirolab on an annual basis For cleaning of the spirolab and the accessories please see the User s Manual 3 2 TEST EQUIPMENT For the repair and maintenance procedures of the spirolab the following test equipment and accessoires are required Complete set of precision engineering tools including 2 5 mm allen key and cross screwdriver Calibration syringe 3L is recommended Digital multimeter at least 31 2 digits accuracy better than 1 Oscil
23. f the supplied units must be filed and the distributor must be able to provide this data These changes can simply be stored in Page 3 of 33 MIR srl Spirolab Spirolab II Service Manual the service file of the specific unit Para t serial or batch number s of the new para t must be documented 1 2 3 Product documentation The documentation set for the spirolab includes a User s Manual The User s Manual is a recommended item for all service engineers Ordering data 980060 User s Manual 980070 Service manual 1 2 4 Installation Warning The mains connection must comply with the national requirements regarding medical facilities Before connecting this appara atus to the mains supply check that the mains voltage and frequency stated on the type plate of the battery charger correspond to that of the local mains supply The 220 240V model is intended for nominal mains voltages of 220 230 or 240 volt The 115V model is intended for nominal mains voltages of 110 or 120 volt 1 2 5 Technical modifications This publication could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be published as Service Info in appendix B of this Service Manual Note Some functions described in this manual may not be activated in the present software or hardware version For detailed information please refer to the User s Manual 1 2 6 Product eva
24. ion of the reader The Warning concerns danger to the safety of the technician or user The Caution draws attention to an action which may damage the equipment The Note points out a statement deserving more emphasis than the general text but which does not deserve a Warning or Caution In order to prevent unforeseen incidents keep away from sensitive electronical devices Inside the spirolab there are high voltages but at very low currents so these represent no danger for persons with experience and with a general knowledge of safety precautions In exceptional cases these high voltage may cause interference with other electronic devices The sequence of steps in a procedure may also be important from the point of view of personal safety and prevention of damage therefore never change the sequence of steps or alter any procedure Page 2 of 33 MIR srl Spirolab Spirolab II Service Manual Batteries may explode if defective or damaged or disposed of in fire Do not short circuit the batteries 1 1 3 Legal Aspects This manual and the information herein are property of MIR srl Rome Italy Copying this manual in whole or in part is strictly forbidden MIR srl disclaims any responsibility for personal injury and or damage to equipment caused by negligence or disregard of a Warning or Caution deviation from any of the prescribed procedures execution of activities which are not prescribed ignorance of the gener
25. jumper it must be 3 6 V Batteries may explode if defective or damaged or disposed of in fire Do not short circuit the batteries Caution Removing the jumper at SJ 1 or the battery will cause a loss of ALL data in memory Note Batteries must be disposed off properly according to the local regulations 5 5 THE PRINTER DOES NOT PRINT MI Make sure that suitable convenient thermal paper is inserted 112 mm width M Check the printer connections Open the spirolab refer to para 3 4 2 Remove the 4 screws that attach the printer to the housing All 3 flat cables must be firmly attached to CNA CNB CNC Page 23 of 33 MIR srl Spirolab Spirolab II Service Manual iral M 5 6 mi 5 7 Check the voltage on R 77 Open the spirolab refer to para 3 4 2 Remove the printer refer to para 3 4 3 Check the voltage on R 77 during printing It must be 5 V Check the voltage on the paper drive motor Open the spirolab refer to para 3 4 2 Remove the printer refer to para 3 4 3 Check the voltages on pins 2 and 9 of IC 9 and IC 10 while the printer is printing They must be approx 7 V depending on the battery level THE PRINTER MAKES NOISES The printer is not firmly screwed to the body Open the spirolab refer to para 3 4 2 Tighten the 4 screws using moderate force THE DEVICE DOES NOT MEASURE AT ALL Check if any obstacle is blocking the free rotation of the
26. loscope Digital Thermometer PC If a problem cannot be solved with the present equipment and suitable instruments are not available please send the spirolab to the manufacturer to carry out the service 3 3 CHECKLIST The following procedures must be carried out during an inspection and or after every repair e Modifications if any must be noted on the the Service Info sheets See appendix B of this manual for further information e Visual inspection Check the electrical connection for safety and check that all components are properly fastened e Check that all accessories do not present any visible damage e Functional test see Chapter 4 3 e File a copy of all service activities 3 3 1 Functional test 3 3 1 1 Self Test Switch on the equipment The spirolab will carry out the so called self test for approx 3 seconds It is assumed that when the self test is passed all functions of the spirolab are okay Any severe malfunction if any will be reported on the display or the printer Switch off the spirolab Page 15 of 33 MIR srl Spirolab Spirolab II Service Manual 3 3 1 2 Software version The software version is indicated in the upper line of the main data screen and on every printout 3 3 1 3 Hardware control All these points must be controlled before doing any measuring test or replacement on the unit 1 The housing does not show any severe damages like scratches splits or breakages
27. luation In order continuously to improve the quality of our products MIR srl requests that the service organizations should report any device problem which may be discovered When the same problem regularly occurs or when a safety problems occur MIR srl would like you to send us a product complaint report The report must contain the name the type of the product a detailed description of the problem the frequency of the same problems quantity of sold equipment and your solution to the problem if any Page 4 of 33 MIR srl Spirolab Spirolab II Service Manual 1 2 7 Additional Information Please do not hesitate to contact us if you require additional information MIR srl Via del Maggiolino 125 00155 Rome Italy Tel 39 06 2275 4777 Fax 39 06 2275 4785 Email mir spirometry com Page 5 of 33 MIR srl Spirolab Spirolab II Service Manual 1 3 GENERAL The spirolab is an open circuit system for the measurement of inspiratory and expiratory lung function para ameters It is suitable for basic lung function analysis of the mechanical respiratory tract para ameters Three different respiratory manoeuvres can be performed the forced vital capacity test FVC the slow Vital Capacity test VC IVC and the Maximum Volontary Ventilation test MVV The spirolab has been designed and manufactured to ensure the highest level of safety and the unit fully complies with the stringent international IEC 601 1 and IEC
28. ndard parts such as screws nuts cleaning agents and so on are not supplied by MIR these parts must be purchased locally Send your order to your contact person at the sales department of MIR After receipt of an order you will receive a confirmation Our minimum order value is 250 Euro Always check the ordering data 4 1 1 Ordering PCB s Printed circuit boards are only obtainable as spare part in their latest version Consult the technical documentation for instructions of how to modify the latest version of the PCB for use in older versions of the equipment 4 1 2 Warranty claims Warranty claims must be provided with the MIR invoice number the type of products and serial number of the equipment in question The defective item must be returned back to MIR The customer is responsible for the transportation and for all transport and customs charges for the delivery of the goods both to and from the service centre 4 2 RETURN SHIPMENTS Any instrument or accessory returned must be accompanied by a clear and detailed explanation of the defect or problem found If units are to be returned to MIR then a written or verbal permission RAN Return Authorization Number must be received before any instrument is returned to MIR The unit must be returned in its original packaging MIR reserves the right to modify the instrument if required and a description of any modification made will be sent along with the returned goods
29. position remove it 3 4 5 Membrane keyboard Removal See para 3 4 2 for removal of the cover Remove the screws which attach the keyboard to the cover Lift the keyboard and remove the membrane keyboard 3 4 6 Display Warning In order to prevent unforeseen incidents keep away from sensitive electronical devices Feeding the display high voltages are present max 450 V but at very low currents max 6 mA so these represent no danger for healthy persons with experience and general knowledge of safety precautions In exceptional cases these high voltage may interfere with sensitive electronical devices Removal See para 3 4 2 for removal of the cover Lift with moderate force the display first on the side where the supplementary cables leave the display s housing then at the other side 3 4 7 Battery pack The instrument is powered by rechargeable batteries 6 elements Ni MH 1 2 V 4000 mAh A 3 7 V lithium battery maintains the backup of the SRAM and RTC The batteries may explode if defective or damaged or disposed of in fire Do not short circuit the batteries Removal See para 3 4 2 for removal of the cover See para 3 4 4 2 for removal of the PCB Disconnect the wiring which connects the battery to the mainboard from connectors CN6 Turn the mainboard over detach the battery and remove it Note Always replace the battery with the same type of battery The internal batteries must be disposed off according to
30. se Voltage Detection AV no JP2 jumper This mode is correspondent to the PVD mode but at higher sensibility because the charging process ends at a voltage decrease of 18mV 2mV in 34 seconds Caution In case of needing high power while charging i e when printing the battery s voltage decreases In this case using the modes Peak voltage Detection or AV the charging process will be terminated although the battery is not fully charged The factory setting is designed for the AT At Termination mode and is not to be changed to avoid the above mentioned problems Charging phases l After connecting the battery charger to the unit the red LED CHARGE LED starts flashing for few seconds In this period the battery is charged in pulses at a low frequency and the battery s response is monitored If the red LED continues to flash this shows that the battery s temperature is out of range or the battery voltage is too low In this case the controller enters the charge pending state and waits for both conditions to fall temperature or rise voltage within their al lowed limits There is no time limit on the charge pending state the charger re mains in this state for as long as the voltage or temperature conditions are outside Page 10 of 33 MIR srl Spirolab Spirolab II Service Manual of the allowed limits If the voltage is too high the controller goes to the battery absent state and waits until a new charge cycle is starte
31. sformer T1 350001 SLI SL II Turbine flow meter 910000 SLI SL II Page 28 of 33 MIR srl Spirolab Spirolab II Service Manual APPENDIX B SERVICE INFO S Product Change Notes General The technical information in the service manuals of MIR srl is up to date at the date of issue Necessary additional information of any kind will be provided in the following way as supplements to the manual or asrevised editions chapters of the manual or as Service Info product change notes When a supplement or a revision is made to the manual a document history file is added to this chapter This file will give information about the date of issue of supplements or revisions Page 29 of 33 MIR srl Spirolab Spirolab II Service Manual REVISION HISTORY First edition Rev 1 June 2001 Revisions Chapter Revision Date of issue page Page 30 of 33 MIR srl Spirolab Spirolab II Service Manual Index 1 INTRODUCTION 1 1 INTRODUCTORY REMARKS EIAN General ASpects eR Re EE T T 2 Safety Aspects 5s e eec ee eda L13 Legal Aspects 5o ERR ERR IUS ee Se 1 1 4 Environmental Aspects ccccccccccesscessesseeseceeeeseceeeeseceeeeseseeeeseeeeeeeenseeeees 1 2 DATA REGISTRATION 1 2 1 Equipment and customer registration Service file 1 2 2 Configuration register 1 2 3 Product documentation 1 2 4 Installation 1 2 5 Technical modifications 1 2 6 Product evaluation 1 2 7 Additional Information 1
32. ss is terminated by any of the following Battery voltage out of range Maximum Minimum Battery temperature out of range Maximum Minimum Maximum charging time timeout 5h 30min Termination according to the charging mode chosen by jumper JP2 Charging termination modes l Temperature Arise Detection AT At JP2 jumper in the default position as in dicated on the attached drawing The battery temperature increases more quickly when the battery is fully charged If the speed of temperature increase inside the battery pack exceeds a certain value then the charging process is terminated The charging controller IC15 samples the thermistor voltage NTC every 34 sec and compare it to the value measured two samples earlier If the voltage has fallen 16mV 4mV or more the fast charge is terminated Peak Voltage Detection PVD JP2 jumper in the other possible position The battery s voltage decreases slightly when it is fully charged In this charging modes the microcontroller checks the battery voltage and terminates the charging process in the event that the voltage on the battery pack decreases by more than the preset limit that limit is configured by the position of the jumper In this mode the battery s voltage is the criteria for terminating the charging process If the voltage decreases by 36mV 4mV in 34 seconds this means that the battery is fully charged and the controller then terminates the charging process Decrea
33. tched off the internal batteries are active and are supplying current so there are still voltages available that can be easily short circuited To avoid unforeseen damaging through voltage removal of all jumpers is recommended Before removing the jumpers remember that removing the SJ1 jumper will cause a loss of all test data in memory Also make sure that you do have left any tools inside and all screws including their washers are again fixed in the original place Page 16 of 33 MIR srl Spirolab Spirolab II Service Manual Note Where not otherwise indicated the reinstallation of a part is in reverse order of the removal procedure After every repair a functional test must be performed 3 4 2 Cover Remove Switch off the unit and close the display Disconnect the battery charger cable from the device Disconnect the turbine flowmeter Turn the spirolab upside down Remove the screws with a 2 5mm Allen key Turn the spirolab to its original position Caution Be careful not to damage the cables while opening the spirolab Carefully lift the cover on the backside about 50 mm from the chassis Then pull the cover about 50 mm towards you In this way you create just enough space between the chassis and the cover to remove the cables Disconnect the display backlight supply CN 3 and the display cable CN 4 Note The keyboard cables CN 8 CN 9 are not disconnectable Turn the cover over the front edge so that cover is lying
34. that could endanger a secure use All 5 rubber feet on the chassis are present and not damaged All pixels on the display are visible and there are no scratches on the display Time and date are correct Pressing any key except the ON OFF Key and the keys to adjust the display causes a short beep The PCB is firmly attached to the chassis by 8 screws The printer is firmly attached to the chassis by 4 screws The keyboard is firmly attached to the case by 10 screws 9 metal 1 Nylon The battery pack is firmly attached to the PCB 0 The two fuses FUS1 and FUS2 are not blown 1 The soldered points of the battery pack are without any damages and provide a safe connection 12 The 3 LEDs are firmly soldered to the keyboard PCB 13 The room temperature sensor is near the housing 14 The JP2 jumper battery charging mode is in the default position 15 The protection plastic angle for IC12 in the angle is present and not damaged Sab oe bo SS Ne oso 3 4 REPLACEMENT PROCEDURES 3 4 1 General When handling sensitive static devices such as the mainboard of the spirolab the following precautions should be observed Persons should be earthed by means of a wrist strap Ground all electrical equipment workbench etc Caution Removing SJ1 jumper will cause a loss of all data After having removed one or more of the jumpers make sure to replace them properly when the repair is finished Caution Even if the unit is swi
35. the local regulations 3 4 8 Optoelectronic head The optoelectronic head is a complete assembly Inside are no serviceable items When defective the complete head must be replaced Page 18 of 33 MIR srl Spirolab Spirolab II Service Manual 3 4 9 Turbine Removal Pull the turbine mouthpiece adaptor out of the turbine flowmeter Pull the turbine out of the mouthpiece adaptor 3 5 ADJUSTMENT PROCEDURES 3 5 1 Spirolab unit Note The spirolab turbine measurement system is calibrated in the factory and does not require any adjustments or calibrations 3 5 2 Turbine flowmeter For proper working the flowmeter must be kept clean For information about cleaning the flowmeter see the User s Manual Calibrating the flowmeter is only possible by the turbine calibration function of the spirolab Please refer to the User s Manual Page 19 of 33 MIR srl Spirolab Spirolab II Service Manual 4 SPARE PARTS This chapter deals with placing orders for spare parts see para 6 1 as well as the listing of actual spare parts appendix A spare parts list 4 1 ORDERING Spare parts can only be ordered if the following data is supplied Part number Description Quantity Shipping details Incoterms The required data is mentioned in appendix A For the current parts programme please refer to the spare parts price list which is published every year MIR only supplies parts mentioned in appendix A Sta
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