Fisher & Paykel MR810 manual

MR810 RESPIRATORY HUMIDIFIER TECHNICAL MANUAL Revision C Copyright © 2004 Fisher & Paykel Healthcar e Ltd Auckland, New Zeala nd[...]

2 MR810 Technical Manual Rev C REF 185042601 Int ernat iona l Fisher & Paykel Healthcare Ltd 15 Maurice Paykel Place, East Tam aki, Auckland 1701 P O Box 14 348, Panm ure, Auckland 1134 New Zealand Tel: +64 9 574 0100 Fax: +64 9 574 0158 Sales info: info @fphcare.co.nz Investor info: investor@fphc are.co.nz Site Feedback: web@fphcare.co.nz Unit[...]

MR810 Technical Manual Revision C REF 185042601 3 CONTENTS 1 G ENERAL I NFORMATIO N ............................................................................................. 5 1.1 Intro duction ............................................................................................................... ............................. 5 1.2 Glos[...]

4 MR810 Technical Manual Rev C REF 185042601 6.9 Completing the Serv ice ..................................................................................................... ...................... 30 7 E LECTRICAL S AFETY T ESTS ....................................................................................... 31 7.1 Protective Ea rth Resista[...]

MR810 Technical Manual Revision C REF 185042601 5 1 1 G ENERAL I NFORMATION 1.1 I NTRODUCTION This manual is intended for use by qualified service personnel w ho will service and maintain the Fisher & Paykel Healthcare MR810 Respir atory Humidi fier. This manual covers the following: • Specifications • Operation of the MR81 0, and cont rols[...]

6 MR810 Technical Manual Rev C REF 185042601 1 1.4 S YMBOLS Front Panel S ymbols Side Panel Symbols Power On/Off (stand by) Caution: Hot surfaces may exceed 75 °C Temperature Cont rol Type BF Increasing Setting Attention – consult acco mpanying document s Internal Symbol s Alternating Current Caution: Electrostatic Sensitive Device Drip Pr oo f [...]

MR810 Technical Manual Revision C REF 185042601 7 2 2 S PECIFICATIONS 2.1 M ECHANICAL Dimensions: 94 x 154 x 135 mm (without chamber fitted ). Weight: 1.7 kg without chamber. 2.0 kg with MR290 filled with water. 2.2 E LECTRICAL Supply Volt ag e: 230 V~ (M R 8 10 A- -) 115 V~ (MR8 10J --) 100 V~ (MR8 10 G- -) Supply Fre quency: 50 or 60 H z Supply C[...]

8 MR810 Technical Manual Rev C REF 185042601 2 2.4 T RANSPORT AND S TORAGE Transport Temperature: -10 to 50 °C (14 to 122 °F) 30 to 95 % relative humidity Storage Tempe rature: -10 to 50 °C (14 to 12 2 °F) 30 to 95 % relative humidity 2.5 S TANDARDS IEC 60601-1:1988 , Medical electri cal equipment, Part 1: General req uirements for safet y (and[...]

MR810 Technical Manual Revision C REF 185042601 9 3 3 O PERATION AND C ONTROLS 3.1 A PPLICATION The MR810 R espiratory Hu midifier is de signed t o heat and humidify res piratory gases delivered to t he patient via a face, nasal, or oral mask. The in sp ired gas is passed through the chamber of water where it is heated and hu midified. An optional [...]

10 MR810 Technical Manual Rev C REF 185042601 3 3.3 S ETUP Figure 3.1: Ty pical setup fo r oxygen therapy using a heated breathing circuit Figure 3.2: Ty pical setup fo r oxygen therapy using an unheated breathing circuit Heated Breathing Circuit Chamber Gas source Heater wire adapter MR810 Humidifier Heater Wire Indicato r Gas source Chamber Unhea[...]

MR810 Technical Manual Revision C REF 185042601 11 3 3.4 C ONTROLS AND I NDICATORS Figure 3.3: M R810 controls an d indicator s 3.4.1 P OWER B UTTON When this button is pressed briefly, the hu midifier will to ggle "on" or "off". The hu midifier defaults to the High setting when turned on. The humidifier also stores the previous[...]

12 MR810 Technical Manual Rev C REF 185042601 3 3.4.3 "S EE M ANUAL " I NDICATOR The "See Manual" indicator displays two fault typ es: Hardware Fault . The "See Manual" indicator flashes o ff and on. Briefly pressing the Temperature Setting button briefly produces a pattern on the three Temperature Setting Indicato rs,[...]

MR810 Technical Manual Revision C REF 185042601 13 3 3.5 O PERATION The MR810 h umidifier has two modes of operation: (a) heater- wire mode and ( b) non heater- wire mode. 3.5.1 H EATER -W IRE M ODE Connecting a heated wire brea thin g circuit (between 10 and 28 Ω ) to the MR810 will automatically initiate the heater-wire mode of c ontrol. The fl[...]

14 MR810 Technical Manual Rev C REF 185042601 3 3.5.2 N ON H EATER - WIRE M ODE If no heater-wire is detected, the MR810 initiates non heater-wire mode. In th is mode the heater plate temperature is controlled to a fixed value. Heater plate temperatures for e ach temperature setting are as follows: Low Setting: 45 °C Medium Setting: 60 °C High Se[...]

MR810 Technical Manual Revision C REF 185042601 15 4 4 M AINTENANCE & C LEANING P ROCEDURES 4.1 C LEANING The followin g is the recom mended clea ning proce dur e for the MR810 Respiratory Humidif ier . Solutions listed below have been tested to ensure that no dama ge will occur with the m etal and plastic components of the humidi fier. Cleanin[...]

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MR810 Technical Manual Revision C REF 185042601 17 5 5.2 S EE M ANUAL C ODES When the See Manual Indicator is illuminated th e humi difier will switch off the heater plate and heater- wire. Pressing the Temperature Sett ing button disp lays the error code on t he Temperature Setting Indicators, as e xplained i n Table 3. Table 3: Indicator codes an[...]

18 MR810 Technical Manual Rev C REF 185042601 6 6 S ERVICING P ROCEDURES NOTE: A complet e list of spa re parts in c ontained i n Appendix C . 6.1 P RECAUTIONS WARNING : Even if the MR810 is switched off with the power button, the unit is still energised. Disconnect the MR810 from the power supply before servicing. After servicing the humidifier sh[...]

MR810 Technical Manual Revision C REF 185042601 19 6 Figure 6.1: Re moving the case bo ttom 6.2.2 R EMOVING THE PCB 1. Unscrew the two screws holding the PCB in place. 2. Carefully lift the rear of the PCB up , the cable cla mp will need to be gu ided out of its locato r on the top case. Lift the PCB away from the case front (see Figure 6.2 below),[...]

20 MR810 Technical Manual Rev C REF 185042601 6 6.3 R EPLACING F USES WARNING : Be sure to replace fuses with the correct type a nd rating, specified in Table 4. Always replace fuse F3 with a 2 A fast blow type as serious injury could result from the wrong fuse. Open the case and remove the PCB (refer to § 6.2) Note: A limited number of MR 810AEA [...]

MR810 Technical Manual Revision C REF 185042601 21 6 6.4 R EPLACING THE PCB Table 5 : Spare PCB part numbers Model Supply Voltage PCB Part Number MR810A-- 230 V~ 043 042 232 MR810J-- 115 V~ 043 042 233 MR810G-- 100 V~ 043 042 234 1. Open the case and remove th e PCB (refer to § 6.2). 2. Cut the cable tie holding the phase and ne u tral conductors [...]

22 MR810 Technical Manual Rev C REF 185042601 6 6.5 S ERVICING THE H EATER P LA TE Table 6: MR810 Screw Torque Se ttings Exploded Diagram Reference Screw Application Driver Torque (in/oz) Torque (Nm) Figure 8.2: 9, 1 1 Screw M4 x 8 Pan Phil Taptite Heater Plate Earth, Heater Plate Element Philips #2 2 05–234 1.45-1.65 Figure 8.2: 3, 6 Screw M3 x [...]

MR810 Technical Manual Revision C REF 185042601 23 6 6.5.2 R EMOVING THE H EATER P LATE 1. Disconnect the power sup p ly, remove the case botto m, unscrew and lift out the PCB (refer to § 6.2). 2. Unscrew the heater plate protective ear th wire from the PCB, disconnect the heater plate and the heater plate thermi stor harnesses, separate the c ase[...]

24 MR810 Technical Manual Rev C REF 185042601 6 6.5.4 R EPLACING THE H EATER P LATE T HERMISTOR If the device has shown a the rmistor fault, the resi stance of the therm istor(s) ca n be checked at known temperatures against the resistance-tem perature table (Table 8 below). Table 8: Thermistor resistance temperature table Temperature Resistance Te[...]

MR810 Technical Manual Revision C REF 185042601 25 6 6. Clip one small cable tie (2.5 mm wide) around th e heater plate harnesses n ear the heater plate, securing all wires as they protrude through the top case. Place a seco nd cable tie near the the rmistor connectors to secure the thermistor wires as they enter the conn ector (refer to Figu re 6.[...]

26 MR810 Technical Manual Rev C REF 185042601 6 6.5.6 R EPLACING THE H EATER P LATE E LEMEN T NOTE : The correct heater plate element is req uired (refer t o Table 9 below) . 1. Open the case and remove the PCB (§ 6.2). 2. Remove the heater plate (§ 6.5.2) . 3. Cut the cable ties attached to the heater plate harness. 4. Unscrew t he six screws ho[...]

MR810 Technical Manual Revision C REF 185042601 27 6 6.5.7 I NSTALLING THE H EATER P LATE Figure 6.9: He ater plate asse mbly 1. Ensure the hea ter plate springs are located in th eir respective location holes on the heater plate. 2. Pull the heater plate ha rness through the hol e in the case to p (Figure 13). 3. Carefully orient the case uppe r o[...]

28 MR810 Technical Manual Rev C REF 185042601 6 Caution When connecting the power cable ensure the polarity of the wires is correct (the table given above applies to power cords supplied by Fisher & Payk el Healthcare). If other cables are used ensure that they are fitted with ferrules to prevent loose wire strands. Figure 6.10: Showi ng the di[...]

MR810 Technical Manual Revision C REF 185042601 29 6 6.7 R EPLACING THE P USH B UTTONS AND THE LED L IGHT P IPE 6.7.1 R EPLACING THE P USH B UTTONS Figure 6.11: Orientati on of button flange and button insert 1. Open the case and remove the PCB as outlined in § 6.2. 2. To replace the push buttons, rem ove the button retain er from inside the case.[...]

30 MR810 Technical Manual Rev C REF 185042601 6 6.8 A SSEMBLING THE PCB AND C ASE 6.8.1 I NSTALLING THE PCB 1. Ensure the LED light pipe is located correctly in the holes in the top an d fr on t of the case top. 2. Carefully angle the front of the PCB ov er the LED light pipe, inserting the p ush button stems into the silicone push buttons, ensu re[...]

MR810 Technical Manual Revision C REF 185042601 31 7 7 E LECTRICAL S AFETY T ESTS After the MR810 has been serviced, perform the following electrical safety tests as listed below or in accordance with relevant country regulations. 7.1 P ROTECTIVE E ARTH R ESISTANCE Use an ohmmeter and measure the resistance from the earth pin on the m ains plug to [...]

32 MR810 Technical Manual Rev C REF 185042601 8 8 P ERFORMANCE T EST P ROCEDURE 8.1 I NTRODUCTION This section outlines the performance testing required for the MR810 as pa rt of the annual maintenan c e or after servicing of the humidifier. If the MR810 is intended to be used with a heated wire circuit, perform the functional check (§ 8.2) and th[...]

MR810 Technical Manual Revision C REF 185042601 33 8 8.3.2 T EST P ROCEDURE 1. Connect the MR810 as for normal operation (re fer to § 3). Make sure t he airway probe port is cap ped. 2. Check the therm ometer for air bubbles in the red alco hol, and discard if any are present. Fully insert the supplied thermometer into the chamber temperature prob[...]

34 MR810 Technical Manual Rev C REF 185042601 A Appendix A: M AINTENANCE C HECKLIST This sheet is in tended to be used as a history of m aintenance pe rformed on the MR810 hu midifier. Pleas e copy the form and com plete as required. Hospital Ward / Department MR810 Maintenance Record Serial Number Equipment Number Test Date Performed By Pass/Fail [...]

MR810 Technical Manual Revision C REF 185042601 35 B Appendix B: P RODUCT H ISTORY This section details the changes made to the product which may hav e significance for servicing. Table 11: Product Chan ge History Date Change Number First Serial # affected Description of Change April 2002 - 020411000001 Initial Release February 2004 6998 0402020000[...]

36 MR810 Technical Manual Rev C REF 185042601 C Appendix C: D RAWINGS AND P ARTS L IST C.1 MR810 S PARE P ARTS L IST Table 14: MR810 Par ts List Reference (Figure 8.1) Part Number Description 1 614 042 002 Print ed Circui t Board Scre ws 2 614 042 002 Case Screws 3 043 042 324 MR81 0 AEA Lower C ase includi ng 5 Case Scre ws 043 042 325 MR81 0 ADU [...]

MR810 Technical Manual Revision C REF 185042601 37 C C.2 MR810 E XPLODED D IAGRAM Figure 8.1: M R810 Explod ed Diagr am[...]

38 MR810 Technical Manual Rev C REF 185042601 C C.3 H EATER P LATE P ARTS L IST Table 15: Heater Plate Par ts List Reference (Figure 8.2) Part Number Description 1 095 428 873 Heater Plate and Thermal Cut Out Harness 2 043 040 643 100 V~ Element 043 041 340 115 V~ Element 043 041 342 230 V~ Element 3 614 040 327 Thermal Cut Out Scre w 4 349 040 051[...]

MR810 Technical Manual Revision C REF 185042601 39 C C.4 H EATER P LATE E XPLODED D IAGRAM Figure 8.2: Heater Plate Exploded Diagr am[...]

40 MR810 Technical Manual Rev C REF 185042601 D Appendix D: E LECTROMAGNETIC C OMPATIBILITY D.1 C OMPLIANCE AND W ARNINGS The MR810 wi th RT308 breathing circ uit has bee n tested to and found com pliant with th e requirem ents of IEC 60601-1-2: 2001. WARNING : The use of other accessories other than those specified may result in increased emission[...]

MR810 Technical Manual Revision C REF 185042601 41 D D.3 E LECTROMAGNETIC I MMUNITY Guidance and manufacturer’s declarat ion – electromagnetic immunity The MR810 is intended for use in the electromag n etic envi ronment specified below. The customer or the user of the MR81 0 should assure that it is use d in suc h an enviro nment. Immunity Test[...]

42 MR810 Technical Manual Rev C REF 185042601 D Guidance and manufacturer’s declarat ion – electromagnetic immunity The MR810 is intended for use in the electromag n etic envi ronment specified below. The customer or the user of the MR81 0 should assure that it is use d in suc h an enviro nment Emissions Test Compliance Compliance Level Electro[...]

MR810 Technical Manual Revision C REF 185042601 43 D Recommended separation distances between portable and mobile RF communications equipment and the MR810 The MR810 is intended for use in an electromagnetic environm ent in which ra diat ed RF disturbances are controlled. The cust omer or the use r of the MR81 0 can help preve nt electroma gnetic i[...]