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Heyer Modular+, Service Manual

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Repair Information 

17 

2.9  Power supply module 

The  power  supply  module  is  located  in  the  frame  behind  the  drawers.  This  module  serves  for  the 
voltage supply of the ventilator modules 1  and 2, the  flow meter block illumination, the patient circuit 
heating blanket and the charging / discharging control for the battery. The power supply board allows 
the  supply  with  either  230VAC or 115VAC, the supply voltage can be selected with a switch on the 
power supply board. 
 

 

 
Fig.  3 Power supply module 
 

Summary of Contents for Modular+

Page 1: ...HEYER Modular Anesthesia System Service Manual Rev 2 1 0 Software version Service software 1 8...

Page 2: ...Table of Contents 2 HEYER MEDICAL AG Carl Heyer Strasse 1 3 56130 Bad Ems Germany Tel 49 2603 791 3 Fax 49 2603 791 209 E mail info heyermedical de...

Page 3: ...nectors on module 1 22 2 11 Ventilator Module 2 AVM 3 1 and AVM 3 2 23 2 11 1 Parts list module 2 24 2 11 2 Connectors on module 2 24 2 11 2 1 Plug connectors on board AVM 3 1 24 2 11 2 2 Plug connect...

Page 4: ...Patient Module 51 3 6 4 Removing the CO2 Absorber Canister 51 3 6 5 Removing the Bellows and Dome System 51 3 6 6 Removing the Airway Pressure Limiting Valve APL 51 3 6 7 Inspecting replacing the Dec...

Page 5: ...1 6 Month Service Interval 99 5 2 12 Month Service Interval 100 5 3 36 Month Service Interval 100 5 4 Cleaning 101 5 4 1 Cleaning and disinfecting the apparatus 101 5 4 2 Cleaning and sterilizing the...

Page 6: ...g 20 Alarm screen 63 Fig 21 O2 Whistle adjustment appearance may differ due to different configuration options 64 Fig 22 Initialization screen 66 Fig 23 Key code entry screen 67 Fig 24 Main menu scree...

Page 7: ...stem HEYER Modular at the time of issue HEYER is not obliged to retrofit former models subject to improvements and modifications An exception to be examined will be made when improvements or modificat...

Page 8: ...ication Product HEYER MODULAR Manufacturer Heyer Medical AG Carl Heyer Strasse 1 3 56130 Bad Ems Germany Tel 49 2603 791 3 Fax 49 2603 791 209 E mail info heyermedical de 1 5 Updating status State of...

Page 9: ...th grounding contact Warning Possible explosion hazard Do not operate near flammable substances Warning The use of anti static or electrically conductive breathing tubes when utilizing high frequency...

Page 10: ...tructor Caution If the machine does not function as described the machine must be examined and possibly repaired by qualified service personnel before being returned to use Caution Handle the machine...

Page 11: ...If soiled the patient dome should be cleaned with water and liquid cleaning agent The unit can be disinfected with a standard surface disinfecting agent Do not use alcohol Caution Do not clean the mac...

Page 12: ...Theory of Operation 12 This page intentionally left blank...

Page 13: ...id the formation of water vapor In additional it includes a controlled emergency valve a reservoir in form of a manual respiratory bag and an expiratory flow sensor The patient module is automatically...

Page 14: ...VT and minute volume M Vol The respirator responses to pressure limitation through displaying the Pmax alarm constantly 2 6 Fresh Gas Decoupling The tidal volume VT is adjusted independently of the a...

Page 15: ...reaker The switched line supply is connected to the AC IN connector on power supply board AVM 2 1 Another third pole of the main switch is connected via the terminal to the board AVM 2 1 X5 5 6 enabli...

Page 16: ...e block proportional valve transformer RS 232 interface I C interface PT 100 motor fan module 1 Communication module 2 AVM 3 1 module 2 AVM 3 2 module 1 module 1 Display Display Controller RS 232 inte...

Page 17: ...oltage supply of the ventilator modules 1 and 2 the flow meter block illumination the patient circuit heating blanket and the charging discharging control for the battery The power supply board allows...

Page 18: ...TT brown Fuse for Battery X5 2 BATT black Main switch X5 3 Cir break bat black 6 X5 4 Cir break bat black 5 X5 5 Main switch black 4 X5 6 Main switch black 3 Connector connected to Pin def Func Signal...

Page 19: ...X15 4 Control Sign white Connector connected to Pin def Func Signal Color No X16 Module 2 X16 1 GND blue AVM 3 2 X16 2 31V red Connector connected to Pin def Func Signal Color No X17 solid state relay...

Page 20: ...oard AVM 2 1 Status indicators as red green and yellow LEDs are located on the board to show functions like check or charging of the battery 2 9 4 Status Indicators Of Battery Control LED LED light Ba...

Page 21: ...layed on the display All safety functions e g the complete ventilator control are located on ventilator module 2 Module 1 is connected to module 2 by means of an RS 232C interface Module 1 serves to g...

Page 22: ...en 32 pole communication with touch screen Connector connected to Plug conf Func Signal X8 Module 2 14 pole communication with module 2 Connector connected to Plug conf Func Signal X9 Module 2 28 pole...

Page 23: ...ter a validation of these signals by P1 AVM3 2 is enabled to operate the different active elements like the solenoid vales and proportional valve P2 P1 P1 P2 1 X3 1 X5 1 X11 X8 1 1 X7 P9 P6 P5 P8 P1 P...

Page 24: ...1 Connector connected to Pin def Func Signal Color No X7 PT 100 sensor X7 1 temperature dep blue X7 2 resistance red Connector connected to Pin def Func Signal Color No X9 Fan ventilator X9 1 12V red...

Page 25: ...No X3 proportional X3 1 12V blue PV valve X3 2 n c X3 3 control volt 0 5V gray X3 4 n c X3 5 GND green Connector connected to Pin def Func Signal Color No X11 solenoid X11 1 GND MV4 brown 1 valve X11...

Page 26: ...Repair Information 26 2 14Ventilator pneumatic Fig 6 Ventilator pneumatic...

Page 27: ...ply pressure for the proportional valve The flow generated by the proportional valve thus becomes independent of pressure variations The setting of the HP pressure reducer 200 kPa 2 bar 29 PSI at the...

Page 28: ...ule The flow metering module attached to the proportional valve consists of a flow sensor with a measuring range of 0 1 l min and a flow divider The flow divider splits the total flow in a ratio of 79...

Page 29: ...valve passive 4 Room air valve emergency air valve 5 Connector of expiratory flow sensor 6 Connectors of power supply heating blanket 7 Bores for guiding pins of connecting block 8 Expiratory valve a...

Page 30: ...ocking bolt 2 Exhaust for driving gas 3 Driving gas in and outlet to bellows dome 4 Thread for CO2 absorber canister fixing outlet from patient module to absorber 5 Inlet for re breathing gas from abs...

Page 31: ...tor 3 Inspiratory bacterial filter 4 Expiratory bacterial filter 5 Airway pressure monitor connection 6 Inspiratory valve passive 7 Expiratory valve passive 8 Spirometry sensor 9 Airway pressure limit...

Page 32: ...32 2 15 3 1 CMV mode inspiration V gas monitoring P expiratory valve decoupling valve bellows valve when reservoir pressure is 2 mbar MV3 1 MV2 1 MV4 1 MV1 1 V Fig 10 Survey of the patient module CMV...

Page 33: ...n 33 2 15 3 2 CMV mode expiration V gas monitoring expiratory valve decoupling valve bellows valve when reservoir pressure is 2 mbar MV3 0 MV2 0 MV4 0 MV1 0 V P Fig 11 Survey of the patient module CMV...

Page 34: ...3 3 Manual mode inspiration V gas monitoring expiratory valve decoupling valve bellows valve when the set respiratory pressure is attained MV3 0 MV2 0 MV4 0 MV1 0 V P Fig 12 Survey of the patient modu...

Page 35: ...epair Information 35 2 15 3 4 Manual mode expiration V gas monitoring expiratory valve decoupling valve bellows valve MV3 0 MV2 0 MV4 0 MV1 0 Fig 13 Survey of the patient module Manual mode expiration...

Page 36: ...de inspiration gas monitoring expiratory valve decoupling valve bellows valve when reservoir pressure is 2 mbar MV3 0 MV2 0 MV4 0 MV1 0 V P emergency air valve opens at p 3 mbar V Fig 14 Survey of the...

Page 37: ...ation 37 2 15 3 6 Spontaneous mode expiration gas monitoring expiratory valve decoupling valve bellows valve MV3 0 MV2 0 MV4 0 MV1 0 V P V waste gas Fig 15 Survey of the patient module Spontaneous mod...

Page 38: ...de the absorber retains the carbon dioxide from the re breathing gas The flow orientation is upstream 2 15 4 4 Inspiratory and expiratory valves To ensure the gas flow direction the two one way valves...

Page 39: ...2 7 2 Machine OFF or Ventilator In Standby Valve MV 1 MV 2 MV 3 MV 4 Activity OFF OFF OFF OFF Pressure on port 5 No 1 No 6 No no sup of MV2 2 15 2 7 3 Manual Spontaneous Mode INSPIRATION and EXPIRATIO...

Page 40: ...no sup of MV2 Phase 2 Pressure increase up to test pressure 40 cmH2O calculation of system compliance Valve MV 1 MV2 MV3 MV4 Activity ON ON ON ON Pressure on port 5 Yes 1 Yes 6 Yes supply of MV2 Phase...

Page 41: ...gas tanks always open tank valves slowly watching the cylinder gauge indicate the tank pressure When disconnecting the tanks always close the valves slowly Use the Modular flow meters to bleed down t...

Page 42: ...with manual ventilation Take the machine out of use Call Service Exchange either the module 2 the module 1 or the communication cable connecting the two modules Set APL valve to CMV SP position AVM3 2...

Page 43: ...he correct function of the circle system Breathing Circuit Disconnect AVM3 1 CMV S CMV PCV The peak pressure PPEAK is lower than 0 5 mbar and lower then the set pressure limit Pmin Create a pressure i...

Page 44: ...n the minimum and the maximum pressure is smaller than 5 mbar the error message is issued Increase the pressure difference Battery running low Use Manual Ventilation AVM3 1 Battery mode The valid disc...

Page 45: ...ressure Adjust flow or I E ratio AVM3 2 PCV The peak pressure PPEAK is lower than the set volume Increase driving gas flow or lower the plateau Check the system for leakages PCV Setting not valid AVM3...

Page 46: ...ce Test when convenient If the pressure sensors measure a difference greater than 3 mbar during the offset comparison even though the system is pressure relieved Take the machine out of use Call Servi...

Page 47: ...Compliance Test Leak Test O2 calibration OK Compliance Test Passed Leak rate 300 ml min Press Enter to continue Test Passed Leak Test Passed Set APL Valve to VENT CMV position OK with a leak of 300ml...

Page 48: ...Start Up Compliance Test Leak Test O2 calibration OK O2Sensor calibration successful O2 too high O2 concentration too high Expose Sensor to room air Press Enter to Start O2 Sensor too old O2 Sensor i...

Page 49: ...Solenoid Valves faulty Fan faulty and Ambient Air Intake real time curve shows a zero line after booting the message Selected mode is not Standby is shown module 2 does not boot fan does not work F8...

Page 50: ...0 2 5 bar 0 38 PSI 15 Low pressure gauge 0 250 Pa x 100 0 250 mbar 0 3 8 PSI 17 Hand tools calibration tool flat screw driver socket and Allen wrench set Metric standard 3 6 Disassembly instructions 3...

Page 51: ...coloration returns Dry soda lime becomes malsorbant 3 6 5 Removing the Bellows and Dome System 1 Turn the unit counter clockwise and unscrew the unit turn 2 Once released remove the silicon bellows by...

Page 52: ...om air valve can be carefully removed from the valve body after removing the coupling ring and the valve cover Assemble in reverse order 4 The O rings of the valve bodies have only to be exchanged if...

Page 53: ...e 4 Remove the Module 2 circuit as a module 5 Reinstall in the reverse order 3 6 13 Removing Module1 Circuit Board Set 1 Remove the Module 2 circuit board set 2 Remove the cables connecting the Module...

Page 54: ...ear access panel 5 Disconnect each gas hose and electric cable running through each section 6 Disconnect the top section from the middle section by disconnecting fasteners 7 Remove the top section exp...

Page 55: ...ly be preformed by qualified personnel who follow proper servicing techniques Warnings are given in appropriate location WARNING Possible fire hazard Fuses i e additional sockets must only be replaced...

Page 56: ...there is no external damage to machine and accessories by visual inspection 3 Ensure all accessories are complete and functional by visual inspection 4 3 2 Inspecting replacing consumable parts 1 Remo...

Page 57: ...Preventive Maintenance 57 1 2 3 4 5 6 7 8 9 exp port insp port reservoir bag port 40 turned drawn valve inlet Fig 16 Patient module front view...

Page 58: ...23 0095 2 Emergency air valve cpl 323 0098 3 Inspiratory valve cpl 323 0096 4 Expiratory valve cpl 323 0097 5 Heat blanket cpl 323 0314 6 Flow sensor cpl 323 0220 7 Ventilation Bellow 323 0158 8 Absor...

Page 59: ...necessary 8 Ensure the inspiratory valve 610 3156 is intact replace if necessary 9 Ensure the expiratory valve 610 3156 is intact replace if necessary 10 Ensure the APL valve 323 0310 is intact replac...

Page 60: ...the supply outlet c Verify the check valves prevent gas from escaping through the open supply outlets d Verify there is no external damage to the gas connecting coupling 18 Verify O2 N2O and AIR supp...

Page 61: ...lastic shield Warning AC voltage is present 3 Adjust P1 on the power supply board for 5 2 VDC Use the ground pin located to the right as meter ground V 54 P 2 Ground P 1 Fig 19 Power Supply Board 4 Ad...

Page 62: ...e the reservoir bag normally is connected d Turn off the fresh gas flow or set it to minimal flow in case of basil flow configuration e Set the APL valve to max fully closed f Select OK to start the t...

Page 63: ...e settings Deviations from pressure indication and setting must not exceed 20 of the set value or 10 Pa x 100 10 mbar 10 cmH2O whichever is greater 4 3 4 2 Alarm Tests 1 Turn on the Modular and ensure...

Page 64: ...ll be available regardless of the position of the AIR N2O switch position Air flow can be increased by rotating the Air flow spindle g If necessary adjust the time and loudness level of the O2 deficie...

Page 65: ...Test of electric safety according to IEC 601 1 a Test the protective conductor resistance b For the measurement use a test set according to IEC 601 1 c The maximum protective conductor resistance mus...

Page 66: ...service software 1 Turn off the Mains switch Set the Switch to standby Turn on the mains switch 2 Select the keys a SET b OPT c d OK One at a time and in sequence while waiting for the indicator to ad...

Page 67: ...ns to return to the Initialization screen menu 2 Shut down the Modular after each diagnose software session by turning off the mains switch 4 5 Key code Access 1 Enter a key code provided during servi...

Page 68: ...in the main menu screen select individual keys to calibrate the O2 sensor Temperature sensor P1 pressure sensor P2 pressure sensor Internal flow sensor External flow sensor or proportional valve 2 Sel...

Page 69: ...u screen Pressure O2 and Temperature sensors Proportional valve output Solenoid valve continuity Power indicators and Heating blanket thermal cutoff Fig 25 Test menu screen Note The motor button has n...

Page 70: ...you have a unit without the patient module motor a Select the Select the keys i SET ii OPT iii iv OK b Select KEYCODE to enter the diagnostic screens c Enter a valid key code to invoke the service sof...

Page 71: ...the inside surface of the docking station i Select the Stop button located on the inside of the docking station and verify that its screen indicator illuminates j Reinstall the Patient module and sel...

Page 72: ...he diagnostic screens c Enter a valid key code to invoke the service software d Advance from this window to the main menu by pressing ENTER e Select TEST MENU f Select the P O2 C key g Attach the all...

Page 73: ...3 1 reads approximately 40 m P1 and P2 values for both AVM 3 1 and 3 2 rows display 2 digits after stabilization Release system pressure n Verify the correct reading of the temperature sensor It shou...

Page 74: ...ove the O2 cell cable from the O2 cell d Remove the scavenger hose e Remove the breathing circuit f Turn the locking handle 180 counterclockwise g Pull out the patient module h Select the Select the k...

Page 75: ...ove specified limits and will result in permanent damage to internal sensors o Use the UP DOWN arrow keys to move the arrow to the desired flow p Select ENTER to start the flow of gas q Verify the AVM...

Page 76: ...rom the O2 cell d Remove the scavenger hose e Remove the breathing circuit f Turn the locking handle 180 counterclockwise g Pull out the patient module h Select the Select the keys i SET ii OPT iii iv...

Page 77: ...o Activate the MV3 valve Verify gas flow at the docking station s decoupling Valve connection p Activate the MV2 and MV4 valves at the same time Verify gas flow at the docking station s expiratory va...

Page 78: ...agnostic screens c Enter a valid key code to invoke the service software d Advance from this window to the main menu by pressing ENTER Select TEST MENU e Select MISC f Unplug the AC mains cable and ve...

Page 79: ...nd of the startup routine a SET b OPT c d OK 2 Select KEYCODE to enter the diagnostic screens 3 Enter a valid key code to invoke the service software Advance from this window to the main menu by press...

Page 80: ...l to stabilize c Turn O2 GAIN potentiometer P6 AVM 3 2 counter clockwise until the values shows close to or 80 d Select MAX on the touch screen e Remove the source of 100 O2 and vent the O2 cell to ro...

Page 81: ...e by pressing the following keys prior to the end of the startup routine a SET b OPT c d OK 2 Select KEYCODE to enter the diagnostic screens 3 Enter a valid key code to invoke the service software Adv...

Page 82: ...Apply a pressure of 80 cmH2O to the Pressure sensor P1 c Turn the P1 GAIN potentiometer P10 AVM 3 2 until the screen bar shows 80 d Select MAX on the touch screen e Remove the calibration pump and re...

Page 83: ...e by pressing the following keys prior to the end of the startup routine a SET b OPT c d OK 2 Select KEYCODE to enter the diagnostic screens 3 Enter a valid key code to invoke the service software Adv...

Page 84: ...Apply a pressure of 80 cmH2O to the Pressure sensor P2 c Turn the P2 GAIN potentiometer P7 AVM 3 2 until the screen bar shows 80 d Select MAX on the touch screen e Remove the calibration pump and rec...

Page 85: ...ressing the following keys prior to the end of the startup routine a SET b OPT c d OK 2 Select KEYCODE to enter the diagnostic screens 3 Enter a valid key code to invoke the service software Advance f...

Page 86: ...d temperature of 60 C Max b Turn the TEMP GAIN potentiometer P2 AVM 3 1 until the screen pointer shows 80 c Select MAX on the touch screen 7 Check both of the valves alternately for correctness and re...

Page 87: ...ready in the Main menu a Remove the CO2 absorber dome b Remove the bag in bottle system c Remove the O2 cell cable from the O2 cell d Remove the scavenger hose e Remove the breathing circuit f Turn th...

Page 88: ...minimum range calibration a Attach an external flow meter to the drive gas outlet of the docking station Verify zero flow Fig 39 Docking Station drive gas outlet b Select MIN to close the proportional...

Page 89: ...If the flow rate was out of specification go to step 14 6 High pressure regulator adjustment a Remove the Driving gas pressure source AIR or O2 b Disconnect the red plug of the test port on top of the...

Page 90: ...Preventive Maintenance 90...

Page 91: ...ent screw on top of the flow divider until you have a voltage of 4 6 0 1 V at the measuring points mentioned above Fig 41 Adjustment Screw on top of the Flow Divider d Select MIN to close the proporti...

Page 92: ...vidually 1 Select FLOW INT to enter the Internal flow sensor screen sensor screen Fig 42 Internal Flow Sensor Calibration Screen 2 Adjust minimum range calibration a Select MIN to apply a zero flow b...

Page 93: ...Preventive Maintenance 93 Caution Pressing QUIT at any time during the procedure will cancel the session s settings and reload the previously stored calibration coefficients...

Page 94: ...he proportional valve select the increment keys along the bottom edge of the screen until the flow meter displays the number that the on screen arrow is pointing to Fig 43 Characteristic of the Propor...

Page 95: ...1 10 l min 0 0 2 12 l min 0 0 2 15 l min 0 0 2 20 l min 0 0 4 25 l min 0 0 4 30 l min 0 0 4 35 l min 0 0 4 40 l min 0 0 4 45 l min 0 1 50 l min 0 1 55 l min 0 1 60 l min 0 1 65l min 0 1 70 l min 0 1 7...

Page 96: ...Enter a valid key code to invoke the service software 4 Advance from this window to the main menu by pressing ENTER 5 Select TEST MENU 6 Select MISC 7 Activate the patient module heater by pressing th...

Page 97: ...tion of R35 and R19 on the Module 2 AVM 3 2 board and the boards ground pin 13 Record the voltage at the junction of R35 and R19 as U1 14 Measure the DC voltage between V13 Pin 8 and ground 15 Record...

Page 98: ...Preventive Maintenance 98 Fig 45 How to measure the voltages U1 and U2...

Page 99: ...the flow meters knobs Check the function and correct flow of the O2 flush Check that all flow meters work throughout their range Check the function of the Hypoxic Guard Check the function of the back...

Page 100: ...alve plates 2 x 610 3156 Replace the O rings of the in and expiratory valve seat 2 x 610 3157 Replace the diaphragm valves 3 x 323 0100 Replace the diaphragm valve O rings 3x 323 0292 Replace the flat...

Page 101: ...e autoclaved It does not come in contact with patient gas If soiled they can be cleaned with water and liquid cleaning agent Do not use alcohol The silicon bellows and the CO2 absorber canister can al...

Page 102: ...Preventive Maintenance 102 This page intentionally left blank...

Page 103: ...12 month service kit 900 4731 36 month service kit 323 0031 Patient module complete 323 0351 Base absorber 323 0095 APL valve 323 0310 APL valve membrane 323 0096 Inspiration valve cpl 323 0097 Expir...

Page 104: ...Spacer ring for diaphragm valve 323 0130 Diaphragm valve seating 750 0065 Spring for insert thread 049 3352 O ring 30x2 323 0115 Insert thread 323 0034 Valve connection plate 323 0100 Diaphragm valve...

Page 105: ...anister 323 0277 Fixing knob absorber canister 323 0045 Patient dome 323 0147 O ring 113mm for patient dome and CO2 absorber canister 323 0138 Foam pad for patient dome 323 0158 Ventilation bellow 048...

Page 106: ...cover for O2 cell CR 1 450 1001 Touch screen 450 1002 Module 1 1 board 450 1005 Display Frame 460 1005 Display LCD 460 1006 Module 1 2 Controller for LCD display 460 1007 Display EL 460 1008 Module 1...

Page 107: ...screwing N2O including tube connector 410 0038 NIST screwing AIR including tube connector 370 0017 Pipeline inlet filter 410 0034 NIST o ring 7 6 x 2 4 800 5580 Fan filter 340 0344 Water Trap 450 0370...

Page 108: ...mm per meter 800 4376 Pa tube black 6 mm per meter 800 4356 Pa tube green 6 mm per meter 800 4107 Pa tube yellow 6 mm per meter 340 0186 Pa tube green 8 mm per meter 340 0185 Pa tube yellow 8 mm per...

Page 109: ...6240 Flow tube N2O 0 1 1 l 370 6210 Flow tube N2O 1 5 10 l 340 0226 Illumination foil 340 2020 Backup battery 800 6300 Wheel with break 800 6310 Wheel without break 450 0251 Vaporizer mount 450 0350...

Page 110: ...one 1 2 m Respiratory tube silicone 1 1 m 323 0093 323 0089 Respiratory tube silicone 0 9 m Respiratory tube silicone 0 6 m 800 5191 Connector for breathing bag 603 3241 Breathing bag 2 3 l Silicone 3...

Page 111: ...7070 Vaporizer type Vapor for anesthetic agents key filler selectatec compatible with Interlock System for Halothane Enflurane Isoflurane Sevoflurane 605 1750 Filling tube Halothane 605 1749 Filling...

Page 112: ...Order Information 112 034 2950 Silicone tube 6 x 2 for suction 323 0362 Tube cable holder for holding device...

Page 113: ...Order Information 113 This page intentionally left blank...

Page 114: ...tion 114 In case of queries or faults please contact our customer service department HEYER MEDICAL AG Carl HEYER Strasse 1 3 56130 Bad Ems Germany Tel 49 2603 791 3 Fax 49 2603 791 209 E mail info hey...

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