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WEINMANN Medumat Easy Ventilator Service Manual

1. 27 Clip for elbow connector WM 28052 28 O ting elbow connector WM 1145 14 29 Torque plate WM 22509 30 Nut for pressure connection WM 22586 31 O ring pressure relief valv WM 1145 3 32 Cap WM 2294 33 Short knob WM 489 Patient valve comprising WM 3280 34 bottom part of control unit for spontaneous breathing WM 328 35 Membrane for Spontaneous breathing tube WM 3284 36 insert for spontaneous breathing tube WM 3282 37 top part of control unit WM 318 38 tube connection for patient valve WM 3213 39 Lip membrane WM 32 40 Disc membrane Exhalation tube WM 3212 41 Oring 15 1 5 WM 1145 118 42 O ring for battery compartment lid WM 1145 145 43 Fillister head screw 30 x 40 mm for housing WM 58347 44 Fillister head screw M3 x 16mm for pneumatic block WM 53033 45 Spring washer for fastening pneumatic block and battery WM 50350 contacts 46 Fillister head screw KB 35 x 8 for battery contacts WM 58350 47 Cheesehead screw M3 x 6 for earth connection WM 50594 48 Serrated washer for earth connection WM 51850 49 Fillister head screw KB 30 x 6 for board WM 23159 50 i lister head screw KB 25 x 6 for interface cable lower part of WM 58320 ousing 51 Cable harness WM 28088 52 Grommet WM 4112 53 Sensor tube length 65 mm WM 22966 Set tubes MEDUMAT WM 15058 comprising 54 3x tube silicone length 52 mm WM 28097 55 Y connector WM 28053 56 Oxygen inlet tube length 40 mm W
2. nstructions and in the Operating Instructions Item No Description Order No 10 Pressurised gas connection threaded preassembled WM 22685 12 Speaker WM 28077 Seal WM 28066 16 Ventilation hose WM 22647 17 Button cell CR 2430 WM 22652 18 Battery 3 6 volt WM 28045 19 Fascia film WM 28009 Upper part of housing with film up to device no 2279 WM 28078 comprising Upper part of housing with film label for languages 20 Label for patient connection Upper part of housing with film from device no 2280 WM 28078 comprising Upper part of housing with film Rating plate Label for patient connection 21 PCB MEDUMAT Easy exchange WM 28079 22 Pneumatic block complete new WM 28025 23 3 2 way magnetic valve WM 28035 Lower part of housing up to device no 2279 WM 28137 comprising Lower part of housing Rating plate Label for O input label for excess pressure valve 24 Label for battery position Lower part of housing from device no 2280 WM 28137 comprising Lower part of housing Label for O input Label for languages label for excess pressure valve Label for battery position 25 Elbow connector 4 6 WM 22552 26 Elbow connector ventilation hose complete WM 28057 Hose connection for patient valve WM 3213 Spare parts 35
3. 3 13 Functional check on pressure limit Connect ventilation hose to test bag Run device with settings Freq 10 min and MV 11 min Switch device to mask ventilation Requirement The pressure limit must respond at 20 5 mbar Switch device to tube ventilation Requirement The pressure limit must respond at 45 5 mbar 3 14 Functional check on relief valve without patient valve Run device with settings Freq 1 1min and MV 7 min Switch ventilation hose to test bag Requirement The test bag is fully inflated during the inspiration stroke The ventilator is then heard to release pressure 3 15 Checking the type plate data Check type plate data against drawing Requirement The type plate data must be correctly entered in accordance with the drawing Final check 13 3 16 Check on external condition Check external condition Requirements The outside of the device is not scratched and there are no flaws The connection thread is undamaged and screws easily The adjuster knob is secured by self locking against inadvertent changes Elbow outlet turns easily 3 17 Documentation Document items 3 3 to 3 16 and also test date and tester number in the test record 14 Final check A Servicing Note Remember to perform a final check after every repair We recommend that maintenance work such as inspections and repairs be performed only by the manufacturer i
4. 2 Use tweezers to remove filter set 57 D 3 Carefully insert a new filter set 57 in the pressurised gas connection 4 Screw the slothead screw firmly into the 57 pressurised gas connection 20 Repair information and instructions 6 3 Opening the device Tools and equipment required e ESD protected workplace e Phillips screwdriver size 1 e Tubular hexagon box spanner 10 mm e Special tool WM 22829 from special tool set WM 15349 e Flatnose pliers 1 Open the battery compartment with a coin and remove the battery Lift off the lid 32 Hold the adjuster knob 33 still with the special tool and loosen the nut with a tubular hexagon socket spanner 10 mm Do not unscrew the nut completely only loosen it Otherwise the knob will split into its separate parts Pull off the adjuster knob 33 5 Place the device on a nonsslip surface and unscrew the 4 screws 43 from the rear of the device 6 Place the device on its side and carefully pull the two parts of the housing apart until the locating pin of the adjuster knob is pulled completely out of the upper part of the housing 20 7 Remove the speaker 12 from the lower part of the housing 24 and disconnect it Repair information and instructions 21 8 Disconnect the plug of wiring harness 51 from the board Note This is best done with flatnose pliers Be very careful not to damage the boar
5. A fresh electrical impulse closes V2 The relief valve V4 opens and vents the ventilation hose The patient breathes out through the patient valve Demandflow An inspiration impulse trigger at V2 opens valves V3 and VA Electronic system The microprocessor controlled electronic system sets the ventilation parameters and monitors ventilation and also O supply and power supply If necessary a visual and acoustic alarm is given The ventilator has an audio response facility that can be switched on for user guidance Patient valve During inspiration the respiratory gas flows to the patient During expiration the expiration pressure switches the valve so Inspiration that the patient can breathe out Expiration Technical data 41 10 Technical Changes Technical Changes From Device No Date New position of device information plates 2280 27 04 07 42 Technical Changes 11 Repair and service records ainjouBis aloq Aupdwos ainjouBbig joq Aupdwoy ainjouBis along Aupdwos ainjoubis apq Aupdwoy SUONONSUI sales LYWWAGIW YIM syuowwo seinspaw SDUDPIOSID ul peunoned BIIAIOS supa QL 42242 Ayajog s na g Pay Ayajog supak 9 42942 Ayajog supa y 42942 Ayajog supak 7 42942 Ayajog OINJOBJNU OW JO speq ON 189P snJ Jvwnaaw ec as neq BinquoH SZSTZ a HA
6. e Phillips screwdriver size 2 e Tubular hexagon box spanner 8 mm e Tubular hexagon box spanner 10 mm e Torque spanner 50 5 Nem e Torque spanner 200 10 Nem e Special tool WM 22829 from special tool set WM 15349 e Flatnose pliers 1 Open the device see 6 3 Opening the device on page 21 2 Remove the board see 6 7 Changing the board on page 26 steps 2 and 3 3 Remove the grommet 52 from the upper part of the housing 20 4 From inside the housing insert the tubular box spanner through the hole for the grommet 52 and press the fascia film 19 outwards until you can grasp it on one side Then completely remove the fascia film from the upper part of the housing 5 Use 70 isopropanol to remove all traces of adhesive from the upper part of the housing Then wait until the isopropanol has completely evaporated from the housing surface You have now removed all the parts You can start reassembling 6 Stick the new fascia film 19 to the upper part of the housing First position the fascia film on the upper part of the housing on the side where the ribbon cable is attached Run the ribbon cable through the slit in the upper part of the housing Then affix the entire fascia film taking care to avoid bubbles Ribbon cable 32 _ Repair information and instructions 7 8 Q Refit the grommet 52
7. Speaker defective Replace speaker 6 6 page 25 Alarm lt 2 7 bar although pressure present Pressure sensor defective Change board 6 7 page 26 Hose connections in device not in order Check hoses rep 6 8 page 27 ace if necessary alarm Battery failing Change main battery 18 4 2 page 16 check button cell 17 3 8 1 page 10 and replace if necessary 4 2 page 16 Pressure inlet leaking Angled connector in device is loose or defective Check 6 8 page 27 Hose system in device is leaking Ch 6 ck hoses replace if necessary 8 page 27 Pressure sensor on board is leaking Change board 6 7 page 26 Mask tube switch 1 defective Change fascia film 6 12 page 32 Pneumatic block leaking Replace pneumatic block 6 8 page 27 Potentiometer wrongly adjusted Adjust potentiometer 6 10 page 30 Frequencies not in order Potentiometer defectiv Replace pneumatic block 6 8 page 27 Test bag is not filled sufficiently during functional check Disconnection alarm Ventilation parameters incorrectly set Correct ventilation parameters Patient valve not working properly Check lip membrane Pressure measurement tube not fitted Fit pressure measurement tube 18 _ Troubleshooting Fault Cause Remedy No Stenosis alarm when patient valve closed during functional chec
8. Room temp 20 C 18 C to 60 C continuously adjustable rom 3 to 16 l min or 3 l min 20 or gt 3 min 15 or 3 l min 35 or gt 3 I min 20 Patient valve dead space 12 8 m Components with critical flow direction Patient valve Max ventilation pressure 20 or 45 mbar Ox concentration 100 Pressurized gas connection External thread G 3 8 Ventilation hose connection External diameter 13 mm Patient valve Inspiration tube 15 mm socket 22 mm plug ISO 53561 Components po None containing latex Subject to technical change without notice 40 Technical data 9 1 Pneumatic electronic systems Function 3 2 way valve Relief valve WE Pressure regulator a L Pneumatic system 2 7 6bar Booster valve with metering facility AS 7 u Coupling element Respiratory frequency Electronic Position Stenosis Disconnection lt 2 7 Abar 100mbar 10mbar Batterie LED bar graph MPU speech module source The input pressure at p is max bar This is dynamically reduced by V1 to 2 5 bar This is the input pressure at V2 V3 and VA Inspiration An electrical impulse to V2 opens V3 and closes VA Oxygen flows through the ventilation hose to the patient valve If the ventilation pressure in the patient valve reaches gt 100 mbar the relief valve V5 will open Expiration
9. be lt 2 mbar min Respiration pressure indicator 3 5 Self test when device is switched on If audio response is enabled you will hear the sentence Open oxygen cylinder before the selftest starts 1 Apply 4 5 bar to the input 2 Switch on MEDUMAT Easy at button 9 Requirement The self test starts the ventilation mode LEDs light up once each one after the other the alarm LEDs flash the pressure indicator LEDs are run through 3 times a signal tone sounds and an audio response sentence is spoken 3 6 Functional check on controls button check Open the pressure supply Switch on the device Switch from mask ventilation to tube ventilation RON gt Press the alarm acknowledgement button Final check 9 3 7 Functional test and alarms 3 7 1 Test Stenosis alarm e Switch to tube ventilation and close patient valve outlet e Operate device at Freq setting 30 min and MV 3 min Requirement The Stenosis alarm must be triggered after two ventilation cycles If audio response is enabled the ventilator announces Check airways and minute volume 3 7 2 Checking alarm confirmation e Immediately after the first alarm tone sounds press Alarm confirmation button 4 Requirement The alarm tone must be suppressed immediately 3 7 3 Test Disconnection alarm e Open patient valve outlet Requirement The Disconnection alarm must be triggered after two ventilat
10. min Oy It has a builtin power supply lt uses high pressure medicinal grade oxygen An external pressure reducer brings this down to the required operating pressure The oxygen supply is fed in at input valve 10 The ventilation settings are continuously variable These settings frequency and volume per minute are coupled and the inspiration expiration ratio of 1 1 67 are regulated by internal electronic control mechanisms The gas for inspiration flows along the hose and through the patient valve and either the mask or tube into the patient s airways The patient valve is fitted with a lip membrane that enables expired gas to be conducted away through the expiration tube e in emergencies e when transport over considerable distances is planned MEDUMAT Easy e is designed to provide controlled ventilation to persons of 10 kg body weight or more e is used to treat respiratory arrest e can be preset to parameters that ensure evenly balanced ventilation provided that the selected maximum ventilation pressure Pmax is not exceeded e permits breathing controlled oxygen inhalation in Demand mode 6 Description You can check the course of ventilation on the respiration pressure indicator 2 2 3 Demandflow function The Demandflow setting switches the MEDUMAT Easy to breathing controlled O3 inhalation Such inhalation must be carried out with the respiration mask A small ins
11. the pneumatic block including potentiometer is changed the potentiometer must be recalibrated for the board 1 Make sure the device is switched off 2 Press the On Off switch 9 and immediately hold down the alarm confirmation button 4 and the mask tube ventilation switch 1 Then release the button After a brief interval the 30 mbar LED on the bar graph indicator lights up 3 To set the first calibration value turn the adjuster knob 6 fully to the left to the value MV 3 Freq 30 4 Press the mask tube switch 1 The device now makes a plausibility check Ifthe value is not correct all alarm LEDs light up until the correct value is present at th adjuster knob 6 and has been confirmed with the mask tube ventilation switch 1 Or you can cancel the potentiometer re in MV l min calibration process by pressing the On Off switch 9 IF the value is correct this is indicated by the O mbar LED on the bar graph lighting up You can now set the next value 5 Turn the adjuster knob 6 fully to the right to the white Demandflow zone 6 Press the mask tube switch 1 The device accepts this value The LED on the bar graph lights up and you can move on to setting th next value 7 Turn the adjuster knob 6 back beyond the index point 7 to the ventilation mode zone then to the right again until it reaches the index poi
12. EDUMAT Easy WEINMANN 2 7 6 bar Oo Typ Medumat Easy sx J N XXXXX M 2004 3 6V 5 2Ah Li 3 6 V CR 2430 C 0197 t x IPX4 Weinmann GmbH Co KG D 22525 Hamburg Medumat Easy DE GB FR IT NL ES PT DK SE NO FI IS 2 Inlet 2 7 6 bar Os 2 7 6 bar Op MEDUMAT Easy device information plate SN Serial number of device Year of manufacture x Do not dispose of device in domestic waste Safety check and servicing label Servicing label indicates when the next service is due LTE ER Safety check label in Germany only marks when the next safety check as per 86 of the German SI law relating to users of medical devices is required Overview 2 Description 2 1 Uses MEDUMAT Easy is an automatic oxygen respiration device shorHerm ventilator with additional inhalation facility You can use MEDUMAT Easy e to revive patients at the site of the emergency e for longer periods in more protracted emergencies e g fires e for shortterm Og inhalation using a respiration mask You can use MEDUMAT Easy while transporting patients e between the various rooms and departments of a hospital e between the hospital and other premises 2 2 Ventilation function MEDUMAT Easy operates within a pressure range of 2 7 to 6 bar and at a flow rate of not less than 70
13. LO NNYWNIJM veunjonynupyy SUONPNYSU 31A1OS YHM B2UDP1OI2D UI JNO PAID 440M JIDdad pud ad1A1ag DDP Jajspuu a21A0q 43 Repair and service records Test record Safety check in accordance with Test Instructions WM 28001 Device MEDUMAT Easy WM No 28000 Device No Date of manufacture 1 Testing equipment e Pressure gauge O 6 3 bar class 1 6 test pressure 6 0 15 bar operating pressure 4 5 0 15 bar e concentration meter Volume flow meter e g RT 200 ViP PF 300 adjustable orifice 10 mbar test set WM 15323 e Digital multimeter 2 Preparations for test e Connect MEDUMAT to test equipment Set language English e Set MEDUMAT to f 10 min MV 11 l min and tube Prax 45 mbar 3 Enter device data Entry of above device data Measurement OK not OK 4 Leak test at 6 bar e Pressure drop inlet side lt 0 2 bar min e Pressure drop pressure measurement zone lt 2 0 mbar min O 5 Self test when device is switched on e 4redand green LED i e one each for Tube and Mask light up l alternately alarm tone and audio response sound 6 Functional check control elements Key check 7 Functional check display elements e Check on alarm LEDs Check on Demand mode LED Check on Ventilation pressure indicator LEDs Check on audio response 8 Chec
14. M 28095 Set filter 57 comprising WM 15284 Filter Sealing washer 3 5 x 6 x 0 5 Service labe 58 for servicing in 2 years time WM 75340 for servicing in 4 years time WM 75341 for servicing in 6 years time WM 75339 59 Blanking plug for interface connection lower part of housing WM 1504 Operating instructions GB ES PT WM 16862 When placing an order please make sure to include type unit serial no and year built 36 Spare parts 7 2 Service sets Overview Years 2 4 6 8 10 12 14 16 Service set WM 15463 WM 15462 WM 15463 WM 15464 WM 15463 WM 15465 WM 15463 WM 15464 Service set 2 6 10 and 14 years Set WM 15463 comprising e Battery e e Lip membrane e Membrane for test connector e Membrane for spontaneous breathing tube Service set 4 years Set WM 15462 comprising e Set WM 15463 Service 8 and 16 years Set WM 15464 comprising e Set WM 15463 e Button cell e Seal for speaker Service 12 years Set WM 15465 comprising e Set WM 15463 e Printed circuit board PCB MEDUMAT Easy Membrane for exhalation tube Sealing washer 3 5 x 6 x 0 5 Filter O ring 15 x 1 5 Button cell Set tubes Pneumatic block 2x O ring 11 x 1 5 for elbow outlet O ring 26 x 2 for battery compartment lid Spare parts 37 8 Tools and Test Equipment This section lists all the t
15. ar hexagon box spanner 10 mm e Torque spanner 50 5 Nem e Torque spanner 200 10 Nem e Special tool WM 22829 from special tool set WM 15349 e Flatnose pliers 1 Open the device see 6 3 Opening the device on page 21 2 Release the ribbon cable from its clamp X100 To do so lift up the top part of the clamp Then you can pull out the cable 3 Unscrew the two screws 49 and remove the board 21 from the upper part of the housing 4 To remove the button cell 17 use a match or similar to ease it slightly out of the holder and pull the button cell out sideways with the other hand Caution Do not use sharp or pointed objects for this purpose as this could damage the board Push here 5 Insert a new button cell 17 Make sure it is installed the right way round 24 Repair information and instructions 10 Please remember Insert the board 21 in the upper part of the housing Make sure that the ribbon cable is not under the board or jammed between it and the housing Attach the board 21 with the two screws 49 Place the ribbon cable in the clamp X100 on the board and then press down the top part of the clamp Close the device see 6 4 Closing the device on page 22 Use a new main battery 18 Perform a final check see 3 Final check on page 8 to a local collection point 6 6 Changing the speaker that old batteries must n
16. ation and instructions 20 Generals ss see 20 6 2 Changing the filter in the pressurised gas connection 0 20 6 3 Opening the device 21 6 4 Closing the device 22 6 5 Replacing button cell 24 6 6 Changing the speaker 25 6 7 Changing the board 26 6 8 Replacing the pneumatic block 27 6 9 Replacing the 3 2 way magnetic valve 29 6 10 Calibrating the potentiometer after changing pneumatic block including potentiometer 30 6 11 Changing upper part of housing 31 6 12 Changing the fascia film 32 6 13 Changing lower part of housing 33 7 Spare parts 0 ee eee ee ee ee eee 35 7 1 Spare parts list ee 35 7 2 Service sets 2 2 0 0 000 000 37 8 Tools and Test Equipment 38 8 1 General tools 2 2222 222 2 38 8 2 Specialtools 2 222 2 2 2220 38 8 3 Testing equipment 2 2 2222 220 39 9 Technical data 04u 50000 0520 owas ers 40 9 1 Pneumatic electronic systems 4 10 Technical Changes 05 42 11 Repair and service records 43 The content and presentation are copyright protected and may only be used by authorised WEINMANN Service Partners in the course of their service operations The content must not be reproduced or passed on to third parties The complete documents must be returned on termination of the cooperation w
17. ched on A battery is exhausted Change main battery 18 4 2 page 16 check button cell 17 3 8 1 page 10 and replace if necessary 4 2 page 16 Fuse defective Change board 6 7 page 26 Ribbon cable X100 of fascia film is faulty or not connected Check plug in connection and cable 6 7 page 26 If necessary replace upper part of housing 6 11 page 31 On Off button 9 defective Change fascia film 6 12 page 32 Board defective Change board 6 7 page 26 Magnetic valve defective Change magnetic valve 6 9 page 29 MEDUMAT Easy will not switch off Operating error Keep On Off button 9 pressed for at least 2 seconds On Off button 9 defective Change fascia film 6 12 page 32 MEDUMAT Easy is functioning but without any displays Pressure gauge hose on MEDUMAT Easy or on patient valve has slipped off Kink in pressure gauge hos Pressure gauge hose within device is kinked or has slipped off Check pressure gauge hose MV too high Measured without 10 mbar back pressure Set to 10 mbar back pressure MV not correct Measuring device not calibrated Calibrate measuring device nput pressure gt 6 bar Reduce system setting to less than 6 bar Patient valve not in order Check membranes and O ring replace if necessary Chapter 6 7 of operating instructions Potentiometer wrongly adj
18. d with the pliers 9 Unscrew the blue sensor tube 53 from the pneumatic block Note Do NOT pull sensor tube 53 off the pressure sensor on the board as this will damage the sensor 10 Pull the ends of the Y shaped sensor tube 54 off the sensors on the board 11 Flap the two parts of the housing apart and place them with the outside downwards 12 Unscrew screw 47 with the serrated washer 48 rom the earth connection to the pneumatic block 13 Unscrew the two screws 46 with the spring washers 45 and remove the battery contacts rom the battery compartment The two halves of the housing are now separated 6 4 Closing the device Tools and equipment required e ESD protected workplace e Torque spanner 50 5 Nem e Torque spanner 200 10 Nem e Tubular hexagon box spanner 10 mm e Special tool WM 22829 from special tool set WM 15349 e Allen key SW 2 5 1 Place the two parts of the housing side by side with the outside facing downwards 2 Place the battery contacts in the battery compartment and screw them in place with the two screws 46 and the spring washers 45 Earth connection 22 _ Repair information and instructions 3 Push the ends of the Y shaped sensor tube 54 onto the sensors on the board 4 Screw the blue sensor tube 53 onto the pneumatic block 5 Connect the plug of wiring harness 51
19. e WEINMANN or by qualified technicians expressly authorized by WEINMANN 4 1 Intervals and scope Every 2 years Every 2 years the device incl patient valve and hose system must undergo servicing and be subjected to a safety check as specified below You can also have servicing and the safety check performed by WEINMANN Be sure to check the following items e Check equipment for completeness e Check system components carrying platforms Vsjaliehack oxygen fittings secretion suction system hose connections etc e Check test bag Mechanical damage Labelling of controls Damage to all external hoses e Final check in accordance with Test Instructions Test Record STK WM 28001 see 3 Final check on page 8 and see 11 Repair and service records on page 43 e Renew parts subject to wear parts requiring compulsory replacement see 7 2 Service sets on page 37 Every 4 years e Servicing of the fittings in the oxygen supply system e g pressure reducer either by the manufacturer or by a specialist expressly authorized by the manufacturer Every 10 years e Repeat testing of conventional steel or aluminium oxygen cylinders by the responsible testing organisation The repeat testing date is stamped on the shoulder of the cylinder Servicing 15 4 2 Batteries MEDUMAT Easy is equipped with two batteries The main battery 18 must always be changed The button cell 17 CR2430 o
20. e patient e membrane for exhalation tube valve to the device MEDUMAT Easy must not be used if the final check reveals defects or deviations from the specified parameters e Oring 1145 118 3 1 Testing equipment required Volume flow meter Type RT 200 Timeter Type EKU VIP ventilator PF 300 Imtmedical or comparable test device Adjustable orifice e g ball valve internal diameter 10 mm Test set for functional checks WM 15323 Oxygen concentration meter O 100 1 e g Type Oxycontrol WM 13550 Set hose with syringe WM 15359 Pressure gauge O 6 3 bar class 1 6 Pressure gauge 0 100 mbar class 1 6 Set supply test Medumat Modules WM 15440 3 2 Preparing for final check RON gt Connect MEDUMAT Easy to the 4 5 6 bar pressure supply Connect ventilation hose and pressure measurement tube to MEDUMAT Easy Device setting Freq 30 min MV 3 min Language setting English 3 3 Entering the device data Enter the device number and the tester number in the test record 8 Final check 3 4 Testing for leaks and pressure reading 3 4 1 Checking input side for leaks e With the device switched off apply 6 bar pressure to input side and and shut off output pressure Requirement The pressure drop must be less than 0 2 bar min 3 4 2 Checking pressure measurement zone for leaks e Apply 55 mbar 2 mbar to MEDUMAT pressure measurem nt zone Requirement The pressure drop must
21. emergency WEINM ANN mbar MEDUMAT Easy Ventilator WM 28000 Servicing and repair instructions WEINM ANN medical Mtechnology Contents 1 Overview cece cece eee cece eees 1 1 Special symbols on the ventilator 2 5 Audio response 25 3 Final check sce faves abt EEEE Seas ARNE 3 1 sting equipment required 3 2 Preparing for final check 3 3 Entering the device data 3 4 Testing for leaks and pressure reading 3 5 SelHest when device is switched on 3 6 Functional check on controls button check 2 222 222 2222 22 3 7 Functional test and alarms 3 8 Battery power 2222222 3 9 Test pressure sensors 222222222 3 10 Functional check on frequency setting Functional check breath volume at 4 5 bar input pressure and 10 mbar back pressure 2 2 2 3 12 Checking O2 concentration 3 13 Functional check on pressure limit 3 14 Functional check on relief valve without patient valve 3 15 Checking the type plate data 3 16 Check on external condition 3 17 Documentation 222222222222 Copyright WEINMANN GmbH amp Co KG i SEIMIEINga 2 2 15 4 1 Intervals and scope 15 4 2 Batteries 0 2 0 00000 000 16 4 3 St ldge nc4 nneen send ireo tini 16 Troubleshooting ee2eeeee 17 Repair inform
22. he lower part o the housing over hold it ock tight and unscrew her with the spring Press the catch towards the elbow connector and pull the pneuma tube 56 When you remove th the lower part of the tic block 22 off the e pneumatic block from housing the O ring 28 will fall out of the connection Make sure that the O ring 31 does n outlet valve ot fall out of the relief Potentiometer cable control cable Magnetic valve the housing over again Repair information and instructions 27 9 When inserting the new or replacement pneumatic block 22 insert the tube 56 in the elbow connector Make sure that the cables are routed below the pneumatic block to the righthand side 10 Tum the lower part of the housing over hold it and the pneumatic block tight and screw up both screws 44 with their spring washers 45 11 Lubricate the O rings of the elbow connector 26 with a little O gt lubricant WM 14298 Make sure that the compensating hole remains ree 12 Insert the Oring 28 in the groove in the outle rom the pneumotic block 13 Insert the elbow connector 26 in the pneumati block 22 iC 14 Insert the clip 27 in the pneumatic block 22 15 Plug in the potentiometer cable 16 Plug in the magnetic valve control cable 17 Close the device see 6 4 Closing the device on page 22 Poten
23. in the upper part of the housing 20 Refit the board see 6 7 Changing the board on page 26 steps 4 to 6 Close the device see 6 4 Closing the device on page 22 10 Perform a final check see 3 Final check on 6 13 Changing lower part of housing page 8 Tools and equipment required ESD protected workplace Phillips screwdriver size 2 Open ended spanner 13 mm Open ended spanner 22 mm Torque spanner 50 5 Nem Torque spanner 200 10 Nem Special counter tool G 3 8 WM 22827 and special spanner 17 mm WM 22828 from special tool set WM 15349 Vice with jaw protectors Flatnose pliers Open the device see 6 3 Opening the device on page 21 Remove the pneumatic block see 6 8 Replacing the pneumatic block on page 27 steps 2 to 8 Undo the screws 50 and remove the wiring harness 51 Use a pointed object to push the blanking plug 59 of the interface connection out of the lower part of the housing 24 from inside Remove the O ring 31 from the lower part of the housing 24 Repair information and instructions 33 6 Screw the special counter tool onto the pressurised gas connection 10 7 Clamp the special counter tool in a vice 8 Use a 22 mm open ended spanner to screw the nut of the special counter tool firmly again the pressurised gas connection 9 Screw the elbow connector 25 off
24. ion cycles If audio response is enabled the ventilator announces Check ventilation system and settings 3 7 4 Test Pressure alarm e Shut off pressurised gas connection of MEDUMAT 2 7 6 0 bar Requirement The Pressure alarm must be triggered If audio response is enabled the ventilator announces Check pressure hose system and gas supply 3 7 5 Checking Demand mode LED e Open the pressure supply Requirement Demand mode LED must come on flickering 3 7 6 Check voice output 3 8 Battery power 3 8 1 3 0 V battery on board Since the 3 0 V lithium cell is difficult to access its charge status can be checked both via the ea eel interface and in a relevant menu 99 de 33 3 19 To do so hold down the alarm confirmation button 50 317 while switching the device on The device is then 25 315 in battery check mode for 3 seconds before a EEE switching to normal operating mode me S i During this 3 second period the Power supply 30 309 alarm in the alarm panel lights up and the voltage 75 3 07 measured for the lithium cell is shown on the 50 3 05 pressure bar graph m 03 The adjacent table shows how the voltage 10 3 01 readings correspond to the bar graph values 5 799 O 2 97 10 Final check Requirement Voltage measured for 3 0 V battery is in the range 3 0 to 3 2 V the alarm for this cell is triggered at 2 7 V 3 8 2 3 6 V batter
25. ith WEINMANN Introduction For decades WEINMANN has been developing manufacturing and marketing devices for emergen cy medical care oxygen therapy and inhalation therapy In 1972 WEINMANN put the first MEDUMAT emergency respirator on the market MEDUMAT emergency respirators are automatic respirators They are used for controlled respiration in emergency medical care e g in cases of acute respiratory disorders and also secondary obstruc tions The new generation of devices developed specif ically to meet users requirements and put on the market in 1997 offers users and patients in creased security An intelligent alarm system moni tors the patient s breathing and informs the user about any problems that occur These devices thus offer even greater security and reliability during respiration The aim of these servicing and repair instructions is to familiarise you as an expert in the field with the function technology servicing and repair of the Note MEDUMAT respirator Thanks to training which you have already received from WEINMANN you now count as trained expert personnel and can there fore give your customers appropriate instructions remedy problems on your own and perform the functional checks prescribed in the operating instruc tions and any repairs required in accordance with these Service and Repair Instructions In the event of a warranty claim send the MEDUMAT
26. k see Patient valve not working properly Check lip membran Checking the breath volume in the operating instructions Troubleshooting 19 6 Repair information and instructions 6 1 General Always perform repairs to MEDUMAT Easy at an ESD protected workplace Observe the safety information in the Operating Instructions for MEDUMAT Easy All operations on this device require detailed knowledge and observation of the Operating nstructions and the Service and Repair nstructions Do not carry out any repairs that are not described in these Service and Repair nstructions This is the only way to guarantee troublefree functioning of MEDUMAT Easy Make sure that your hands and workplace are clean during the repair work Be sure to carry out a final check after every repair see 3 Final check on page 8 If you replace components or individual parts use only genuine WEINMANN parts When ordering the lower part of the housing 24 please specify device type year of manufacture and device number Note The item numbers quoted in the following text are identical to the item numbers in the spare parts list on Page 35 and the overview on Page 4 6 2 Changing the filter in the pressurised gas connection Tools and equipment required Flathead screwdriver Tweezers Unscrew the slothead screw from the pressurised gas connection 10 RO
27. k batteries e 3 1V 40 1V 35V402 0 1V O 9 Check pressure sensors e Input pressure sensor e Ventilation pressure sensor Demandflow sensor 10 Check frequency setting e Frequency 14 2 min e Frequency 10 2 min e Frequency 30 2 min D 11 Check breath volume at 4 5 bar supply pressure and 10 mbar back pressure e f 4min MV 16 l min BV 1140 170 ml e f 10min MV 11 l min BV 1100 170 ml e f 30 min MV 3 min BV 100 20 ml 12 Check O concentration at f 10 min and MV 11 l min e O concentration gt 98 vol l 13 Functional check on pressure limit at f 10 min and MV 11 l min e Pressure limit Mask responds at 20 5 mbar l e Pressure limit Tube responds at 45 5 mbar l 14 Functional check on relief valve Test bag is fully inflated then ventilator vents audibly l 15 Check on equipment and accessories Present yes no e Ventilation hose and patient valve undamaged and operational Test set for functional check operational Pressure reducer operational cylinder within test deadline valve operational Carrying platform complete and operational Medical products book Operating instructions 16 Check on external condition e Connection thread undamaged adj
28. nly has to be replaced every 4 years The button cell 17 supplies auxiliary power to the electronic system if the main battery 18 fails This makes it possible to set off an alarm even if the main battery suddenly fails The device then switches to exhalation In principle the battery capacity is designed so that under normal conditions of use it will not need changing in the 2 years between services The main battery 18 is to be renewed during the 2 yearly service the button cell 17 only every 4 years When changing batteries special precautions must be taken to protect the electronic circuits see 6 5 Replacing button cell on page 24 When changing the main battery 18 you must change the O ring 42 on the battery compartment cover as well 4 3 Storage 17 Button cell for back up power 18 Lithium battery 3 6 V for main power supply MEDUMAT Easy If you do not intend to use MEDUMAT Easy for a long period we recommend the following storage precautions 1 Clean and disinfect the device see 5 Hygienic Preparation in the operating instructions 2 Store MEDUMAT Easy in a dry place Important Remember that devices still require servicing at the specified intervals even when in storage otherwise they are not allowed to be used when removed from storage 16 Servicing 5 Troubleshooting Fault Cause Remedy MEDUMAT Easy does not start up when swit
29. nt zone MV 16 Freq 14 8 Press the mask tube switch 1 again The calibration values are stored and the device exits the calibration mode Note Until the last step the calibration mode can be cancelled at any time by pressing the On Off switch 9 without storing the new values If an invalid value is detected during calibration all alarm LEDs light up no value is stored either 30 Repair information and instructions 6 11 Changing upper part of housing Tools and equipment required ESD protected workplace Phillips screwdriver size 2 Tubular hexagon box spanner 10 mm Torque spanner 50 5 Nem Torque spanner 200 10 Nem Special tool WWM 22829 from special tool set WM 15349 Flatnose pliers Open the device see 6 3 Opening the device on page 21 Remove the board see 6 7 Changing the board on page 26 steps 2 and 3 Remove the grommet 52 from the upper part of the housing 20 You have now removed all the parts You can start reassembling 4 Insert the grommet 52 in the new upper part of the housing 20 Refit the board see 6 7 Changing the board on page 26 steps 4 to 6 Close the device see 6 4 Closing the device on page 22 Perform a final check see 3 Final check on page 8 Repair information and instructions 31 6 12 Changing the fascia film Tools and equipment required e ESD protected workplace
30. ools and test equipment mentioned in these Service and Repair Instructions The specific tools and test equipment required in each case are listed in the individual chapter You can obtain special tools from WEINMANN 8 1 General tools Flat head screwdriver size 0 5 x 3 x 100 Phillips screwdriver size O Phillips screwdriver size 1 Phillips screwdriver size 2 Open ended spanner 13 mm for elbow connector at O inlet Open ended spanner 22 mm for special counter tool Vice with jaw protectors countering threaded connection 8 2 Special tools The following tools can be ob Special tool set Spec ia comprisin counter tool G for countering threaded at O inlet ia Spec spanner 17 m tained from WEINMANN g 3 8 connection m for counter nut at O in Spec ia tool et for holding securing adjuster knob Set hose wi Spec a th syringe pliers Tubular hexagon box spanner 10 mm for adjuster knob Tubular hexagon box spanner 8 mm for fascia film Tweezers for filter set Diagonal cutter Flatnose pliers Allen Torque spanner 50 5 Nem Torque spanner 200 10 Nem WM 15349 WM 22827 WM 22828 WM 22829 WM 15359 WM 22928 38 Tools and Test Equipment key 2 5 mm 8 3 Testing equipment Oxygen concentration meter type Oxycontrol WM 13550 Volume flow meter Type RT 200 Timeter or obtainable f
31. ot be disposed of in household waste Always take old batteries Tools and equipment required ESD protected workplace Phillios screwdriver size 1 Tubular hexagon box spanner 10 mm Torque spanner 50 5 Nem Torque spanner 200 10 Nem Special tool WWM 22829 from special tool set WM 15349 Open the device see 6 3 Opening the device on page 21 steps 1 to 6 Remove the speaker 12 from the lower part of the housing 24 and disconnect the speaker cable plugs Put the old speaker on one side Take the new speaker 12 and connect the speaker cable plugs Insert the speaker 12 in the recess in the lower part of the housing 24 The centering lug of the speaker must be located in the corresponding groove in the lower part of the housing Close the device see 6 4 Closing the device on page 22 steps 8 to 13 Perform the final check see 3 Final check on page 8 N Centering lug Repair information and instructions 25 6 7 Changing the board Tools and equipment required e ESD protected workplace e Phillips screwdriver size 1 e Tubular hexagon box spanner 10 mm e Torque spanner 50 5 Nem e Torque spanner 200 10 Nem e Special tool WM 22829 from special tool set WM 15349 e Flatnose pliers 1 Open the device see 6 3 Opening the device on page 21 2 Release the ribbon cable from its clamp X100 To do so lift up the
32. piration trigger pulse causes oxygen to continue flowing until slight overpressure interrupts the flow Expiration then takes place via the patient valve as in ventilation 2 4 Patient valve The gas for inspiration is channelled into the patient s airways through the patient valve The valve is designed to enable spontaneous breathing in the event of failure of the MEDUMAT Easy 2 5 Audio response The device has an audio response facility that can be switched on for user guidance especially for users who have little practice f audio guidance is not wanted it can be switched off by pressing a combination of keys see 4 10 Audio response for user guidance in the operating instructions 40 2 20 10 0 9 Demandflow setting nn 11 12 Ry o 9 MMO 214 10 Ns U 1 14 416 16 5 emand 0 30 flow 3 req min A MV l min 34 35 36 41 Description 3 Final check Alter every repair and every service the device We recommend that you always hold reserve must be subjected to the following final check in stocks of the following items accordance with Test Instructions WM 28001 and the test record replacement washers for the connections e lip membrane for the patient valve Note For the final check on the MEDUMAT Easy you e membrane for spontaneous breathing tube must connect the ventilation hose and th
33. rom Type Flow Analyser PF 300 Allied Healthcare Products Inc 1720 Sublette Avenue St Louis Missouri MO 63110 obtainable from Skspecial instruments GmbH Strelgasse 2 USA D 86720 N rdlingen Tel 001 800 444 3954 Germany Fax 001 314 771 5183 Tel 00 49 90 81 2 20 61 or 2 20 62 or Fax 00 49 90 81 2 20 63 Type EKU VIP ventilator tester www specialinstruments com obtainable from EKU Elektronik GmbH Feldstrasse 9a D 56291 Leiningen Germany Tel 00 49 6746 1018 Fax OO 49 6746 8484 www eku elektronik de www eku elektronik deTest set for final check WM 15323 Set supply test Medumat Modules WM 15440 Set test set respiration and pressure reducer flow WM 15443 Pressure gauge O to 6 3 bar class 1 6 Pressure gauge O 100 mbar class 1 6 Type WIKA obtainable from Alexander Wiegand GmbH amp Co Alexander Wiegand Strasse 30 D 63911 Klingenberg am Main Germany Tel 0049 9372 1320 Digital multimeter Hazet torque wrench obtainable from Hommel Heidelberger Str 52 D 68519 Viernheim Germany Tel 00 49 6204 738 0 Fax 00 49 6204 739 222 Tools and Test Equipment 39 9 Technical data MEDUMAT Easy Product category MEDUMAT Easy Patient valve 30 mm socket Expiration tube ISO 5356 1 Power supply Life expectancy Max storage period Maintenance free lithium battery 3 6 V 5 2 Ah gt 2 years 10 years after delivery Air press
34. t The tre un device with setti hose to 10 mbar ori ings Freq 14 min and quency must be 14 2 mi ngs Freq 10 min and quency must be 10 2 mi ngs Freq 30 min and quency must be 30 2 mi Patient valve with hose system Orifice 10 mbar open ice and to volume flow meter MV 16 l min n MV 11 l min n MV 3 I min iis 3 11 Functional check breath volume at 4 5 bar input pressure and 10 mbar back pressure equirement Breath equirement Breath Requirement Breath Run device with setti R Run device with setti R R un device with setti V ume m s Freq s Freq Patient valve with hose system Orifice at 10 mbar gt setting in and MV 16 min be 1140 170 ml 10 min and MV 11 l min be 1100 170 ml 30 min and MV 3 I min be 100 20 ml 12 Final check 3 12 Checking O concentration Run device with settings Freq 10 min MV 11 l min and 100 Oo Requirement The concentration must be gt 98 O measuring device Pressure supply MEDUMAT Easy Respiration tube Q000000000000 I 1 Patient valve O measuring cell Pressure gauge
35. tiometer cable 18 Perform a final check see 3 Final check on page 8 Magnetic valve control cable 28 _ Repair information and instructions 6 9 Replacing the 3 2 way magnetic valve Tools and equipment required e ESD protected workplace e Phillips screwdriver size 2 e Phillips screwdriver size O e Tubular hexagon box spanner 10 mm e Torque spanner 50 5 Nem e Torque spanner 200 10 Nem e Special tool WM 22829 from special tool set WM 15349 e Flatnose pliers 1 Open the device see 6 3 Opening the device on page 21 2 Remove the pneumatic block see 6 8 Replacing the pneumatic block on page 27 3 Place the pneumatic block on the side with the type plate 4 Unscrew the two securing screws and remove the 3 2 way magnetic valve 23 5 Insert the new 3 2 way magnetic valve 23 in the correct position Make sure that the seal for the 3 2 way magnetic valve is seated in the correct position 6 Fasten the 3 2 way magnetic valve with th screws supplied with it 7 Reinstall the pneumatic block see 6 8 Replacing the pneumatic block on page 27 8 Close the device see 6 4 Closing the device on page 22 9 Perform a final check see 3 Final check on page 8 Repair information and instructions 29 6 10 Calibrating the potentiometer after changing pneumatic block including potentiometer When
36. to WEINMANN To enable us to process ex gratia requests or war ranty claims please enclose the customer s proof of purchase invoice with the device Repairs or servicing work may be performed only by WEINMANN or by trained specialist staff You are responsible for repairs carried out yourself and for their warranty Use only original WEINMANN spares for repairs Please bear in mind Your customer trusts you and relies on your expert capability just as you rely on WEINMANN For the following information please consult the Operating Instructions for MEDUMAT e Safety Information e Fitting accessories e Operating MEDUMAT emergency respirators e Hygienic preparation e Functional check Introduction 3 1 Overview Control panel MEDUMAT Easy 2 Respiratory pressure indicator bar graph 3 Alarm panel MEDUMAT Easy 60 lt gt mbar gt Stenosis lt gt Disconnec 30 3 Freq min MV l min 1 Mask tube ventilation switch with indicator LEDs bo co lt 2 7 bar 0 4 Alarm confirmation 5 Colour code 6 Adjuster knob ventilation parameters 7 Index position 8 LED Demandflow 9 ON OFF switch 10 Pressurized gas connection 15 Relief outlet valve 11 Battery compartment 12 Speaker 13 Pressure gauge hose connection 14 Ventilation hose connection 4 Overview 1 1 Special symbols on the ventilator Symbols on M
37. to the board 6 Attach the earth connection to the pneumatic block using screw 47 and serrated washer 48 7 Connect up the speaker 12 and insert it in the recess in the lower part of the housing 24 The centering lug of the speaker must be located in the corresponding groove in the lower part of the housing 8 Push the adjuster knob locating pin through the hole in the board and put the two halves together 9 Insert the battery in the battery compartment and close the lid with a coin Make sure the battery is correctly connected 10 Now screw up the lower part of the housing with the 4 screws 43 using a torque of 50 5 Nem 11 Secure the adjuster knob 33 Push the adjuster knob onto the spindle as far as it will go then pull it out a fraction Hold the knob firm with the special tool and screw it tight with a torque of 200 10 Nem Earth connection Centering lug Repair information and instructions 23 12 Check the alignment of the adjuster knob When the knob is turned fully to the left the white line must point to MV 3 I min If it does not slacken the nut and realign the adjuster knob 13 Place the cap 32 on the adjuster knob 33 14 Perform the final check see 3 Final check on page 8 6 5 Replacing button cell Tools and equipment required e ESD protected workplace e Phillips screwdriver size 1 e Tubul
38. top part of the clamp Then you can pull out the cable 3 Unscrew the two screws 49 and remove the board 21 from the upper part of the housing 4 Place the new board 21 on the spacers Make sure that the ribbon cable is not under the board or jammed between it and the housing 5 Attach the board 21 with the two screws 49 Place the ribbon cable in the clamp X100 on the board and then press down the top part of the clamp 7 The screw of the blue sensor tube 53 is secured with a nut for transport Remove the nut before screwing the tube to the pneumatic block 8 Close the device see 6 4 Closing the device on page 22 9 Perform a final check see 3 Final check on page 8 26 _ Repair information and instructions 6 8 Replacing the pneumatic block Tools and equipment required ESD protected workp lace Phillips screwdriver size 2 Torque spanner 200 Special tool WM 22829 from special tool set WM 15349 Flatnose pliers Tubular hexagon box spanner 10 mm Torque spanner 50 5 Nem 10 Nem Open the device see 6 3 Opening the device on page 21 Press the catch and unplug the magnetic valve control cable Unplug the potentiometer cable Remove the clip 27 from the pneumatic block 22 Pull the elbow connector 26 off the pneumatic block 22 Turn the lower part of and the pneumatic b both screws 44 toget washers 45 Turn t
39. ure according to Ib 93 42 EEC Dimensions 100 x 145 x 90 Lx WxH incl connections Weight incl accessories PS Operation Temperature range 18 C to 60 C Humidity max 95 70 kPa to 110 kPa Auxiliary power for alarm system Max storage period Button cell CR 2430 10 years after delivery Storage 40 C to 70 C Electromagnetic compatibility acc to EN60601 1 2 and EN 794 3 Radio interference suppression Radio interference the test parameters and threshold values are obtainable from the manufacturer on request EN 5501 1 Fuse F T 500 L 250 V FR Spiral silicone Ventilation hose NW 10 Degree of protection IP XA against water EN 794 3 ede complied EN 6060 1 1 a EN 1789 Alarm sound pressure 60 dB A U ventilati Accuracy of ventilation pressure measurement 5 of upper range value resistance EN 61000 4 2 to 3 Caid Timing pulse volume constant Gas input Medicinal oxygen Operating pressure 2 7 to 6 0 bar Minimum gas volume required POETS Insp exp ratio 1 1 67 Resistance patient valve under EN 794 3 Inspiration Expiration Spontaneous breathing lt 6 mbar at 60 l min lt 6 mbar at 60 l min lt 1 5 mbar at 30 min Ventilation frequency Continuously variable rom 10 to 30 min Elasticity of breathing system Negligible Minute volume MV MV tolerances
40. usted Readjust potentiometer 6 10 page 30 Adjuster knob out of adjustment Readjust adjuster knob 6 10 page 30 Pneumatic block leaking Replace pneumatic block 6 8 page 27 Troubleshooting 17 Fault Cause Remedy Pressure limit P nax not in order Incorrect setting selected on device Make correct setting Chapter 6 5 of operating instructions Patient valve not in order Check membranes and O ring replace if necessary Chapter 6 7 of operating instructions Patient valve or test connected bag not correctly Check hose connections and test bag MV not in order See fault MV not in order Hose connections in device not in order Check hoses replace if necessary 6 8 page 27 Pressure sensor on board is faulty Change board 6 7 page 26 Adjuster knob for ventilation defective Replace adjuster knob 6 3 page 21 and 6 4 page 22 Pressure measurement connection blocked Replace 6 8 page 27 Alarms visual acoustic not in order LED s do not light up Change board 6 7 page 26 Incorrect indication Stenosis Disconnection Check settings check hose connection to patient valve Chapter 6 7 of operating instructions No visual acoustic alarm Board defective Change board 6 7 page 26 No acoustic alarm Alarm confirmation pressed Wait for between 30 120 s
41. uster knob operational index function l working swivelling elbow outlet moves easily Service performed yes no Final check performed Date Tester No Signature 44 Repair and service records Weinmann Gerate fiir Medizin GmbH Co KG P O Box 540268 D 22502 Hamburg Kronsaalsweg 40 e D 22525 Hamburg T 49 0 40 5 47 02 0 F 49 0 40 5 47 02 461 E info weinmann de www weinmann de Center for Production Logistics Service Weinmann Ger te f r Medizin GmbH Co KG Siebenst cken 14 D 24558 Henstedt Ulzburg T 49 0 4193 88 91 0 F 49 0 4193 88 91 450 emergency homecare diagnostics WEINM NN medical technology WM 16998d 12 08
42. with a 3 mm open ended spanner O Use the 17 mm special spanner to slacken the nut 30 and unscrew it completely 1 Lift out the plate 29 2 Remove the lower part of the housing 24 3 Take the new lower part 24 and place it on the pressurised gas connection 10 4 Slide the plate 29 on the inside of the housing onto the connection 5 Tighten the 17 mm nut 30 on the inside of the connection 6 Fasten the elbow connector 25 to the connection 7 Use the 22 mm open ended spanner to undo the nut of the special counter tool 8 Open the vice 19 Screw the special counter tool off the pressurised gas connection 10 20 Using screws 50 screw the interface cable of the wiring harness 51 into the new lower part of the housing 24 21 Push the blanking plug 59 into the interface connection from outside 22 Refit the O ring 31 in the lower part of the housing 24 23 Reinstall the pneumatic block see 6 8 Replacing the pneumatic block on page 27 steps 9 to 16 24 Close the device see 6 4 Closing the device on page 22 25 Perform the final check see 3 Final check on page 8 34 Repair information and instructions 7 Spare parts 7 1 Spare parts list Note The item numbers in the following table are identical to the numbers in the text of these Service and Repair
43. y battery compartment Remove the 3 6 V battery from the battery compartment and measure the voltage with a digital multimeter Requirement Voltage measured for 3 6 V battery is in the range 3 4 to 3 7 V 3 9 Test pressure sensors 3 9 1 Input pressure sensor e Shut off pressurised gas connection of MEDUMAT 2 7 6 0 bar Requirement The Pressure alarm must be triggered If audio response is enabled the ventilator announces Check pressure hose system and gas supply 3 9 2 Ventilation pressure sensor e Connect ventilation hose to test bag e Run device with settings Freq 10 min and MV 11 l min e Switch device to mask ventilation Requirement The pressure limit must respond at 20 5 mbar e Switch device to tube ventilation Requirement The pressure limit must respond at 45 5 mbar 3 9 3 Demand flow sensor Supply device with pressure Switch on MEDUMAT Easy at button 9 Connect ventilation tube and patient valve to test bag Set MEDUMAT Easy to demand flow mode Green LED in demand mode button illuminates Oa KR woON gt Squeeze the test bag Requirement Releasing the test bag triggers a short ventilation Final check 11 3 10 Functional check on frequency setting Connect ventilation un device with sett equirement The fre equirement The fre R R Run device with setti R R Requiremen

WEINMANN Medumat Easy Ventilator Service Manual

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