Home

Pulse Oximeter Service Manual

1. EN Q19 Q18 D37 L34 ERE ER EN D36 D34 KR 8viH 7418 EH EH EN NN o N 891 915 18 1819 L33 132 131 E 981u 581 00127 91 EN mu EN vO 1718 9419 6r v8ld uH 5 mu
2. 8 gt F st EB 660 H 0018 989 Figure 42 Main PCB Assembly Drawing Rear View 159 2 4700P 250V _1 TH NEUTRAL _ 5 390K 1 2w TH F1 15 FACTA 2 2ASB TH T1 i E3490A EPS2PC3 TH e Power Entry MAIN DC ESD Protection HIGH CURRENT VIAS 110 11 Fan Control m 0 19 OOOU 1 00 E cs R5 325V 1 2W TH TH CR 22V N SMCJ22C FAN CTRL 22V N SMCJ22C Main Board O w7 MAIN_DC O wog VIN GND VOUT Battery LM35D TH 2N7002S 1 1 914565 a o2 IRF9510 TH Requires Heat Sink Nellcor 891196 sw2 MBRS330T3MTS50B TH BATT_OUT O we ie GND TP2 F3 1N914S BA _ CHK WN CHG OU NC o N o BATT wa Battery
3. SOFTKEY SOFTKEY2 SOFTKEY3 SOFTKEY 4 HC244 MC4HC244A0T 2N7002LT1 ACPWRLED JOUT2 GND IOUT RET ay L10A Figure 34 Main PCB Schematic Diagram Sheet 7 of 13 143 07 ages R5 PSLED pe Olohms 1 BATLED 6 ay 7 25 6 agga A ASLED MOTNLEO TRENOLED 2 18 16 9 ame Tayo 6 ays WEG WA qug MCT4HCT24 Remove Remove Slow Bus Pullups Battery Backed Trend Ram LED drivers 1 0 Decode Figure 35 Main PCB Schematic Diagram Sheet 8 of 13 145 BYPASS FOR 46 CLK312KHZ TA CTX300 4P GNDSHORT RCSL SHDN PGND TERMY 1 Yy 7 122 GNO LT1533CS COL REF COMP RMID V FGND RTOP SGND LT1431CSB 22 Figure 36 Main PCB Schematic Diagram Sheet 9 of 13 147 _ E RCLK E_CLSN E TX 5 FE_RXD lt O0 gt 1000hm 1 MC7T4HCO4
4. 39 Param Softkey eene mener nnns 40 Print Softkey Menu T 41 Next Softkey Menu 45 Setting Institutional Defaults Sample 47 N 595 Contents RE ego sp ERE AE EUR ee oe ee ees 21 IMtHOGUCHION 51 How To Use This Section 51 Who Should Perform Repairs nennen 51 Troubleshooting Guide 51 o 53 54 Display Alarms eter ete 55 Operational Performance sse ener 56 Data M 57 Error COQS 57 Other Messages idee eiecit R 60 NGOS eer GUJE 63 63 Replacement Level Supported 2 63 Prior to Disassembly 2 4 tiet ott Dr aad deux Yee dd dug 64 64 Monitor Disassembly iisen 65 Monitor Assembly dria Rr tota 66 Battery
5. 67 67 Replacement e 68 Power Entry Module PEM Removal Replacement 68 REMOVAL 68 69 Power Supply Removal Replacement 0000 70 Removal 5 70 Replacement tta ate a et RA CARE 71 Cooling Fan Removal Replacement 72 denas 72 Replacement 73 Display PCB Removal Replacement 74 aU T dante 74 Replacement osr 75 User Interface Removal Replacement 76 Removal 76 Feplacemient dE EET 77 Alarm Speaker Removal Replacement 78 Removal sis 78 Replacement tcd e e M erba da RR A CA ERA AREA 79 Top Case Assembly Removal Replacement 80 IE LP 80 Replacement eod e i e e ut A Idest 80 ccu dl i AMOR TRI 81 L E 81 Obtaining Replacement
6. 46 1 NE 1 V vsw L 2 2 GND 4 15Kohm 20 gt 5 72 139 1208 in o p V Processor Power 5 ir A BATT_CHECK CLK625KHZ NORMALLY HIGH ACTIVE LOW aygo PWR ON ange TURN OFF NORMALLY HIGH ACTIVE LOW ONBUTTON 10 1 TURN OFF ol and Check Figure 33 Main PCB Schematic Diagram Sheet 6 of 13 141 FONTSEL AC_OK AC LED ONBUTTON tor is for the NEW N595 front panel overlay ACPWRLED BATLED 033 MOTNLEO 1 2 SOFTKEY1 Lal TRENDLED This connector SOFTKEY3 1 SOFTKEY2 CNTRST ALRMSIL 8 ASLED SAQB ayoa RESET 5 SA 28 it panel display BRESE BSA 28 DSPLYCSL BLM21822 FERRITE BEAD gt MMB0914
7. 11 R231 RP24 AGND N W to c o 1713638 x o N A CD mm cmm 0122 5 DT2 1 _ Pr S d 6123 ERROR_L N 060 1 6723 2 uu a 8223 2223 A Oo N QJ lt O 2241 Z 35 259 Figure 41 Main PCB Assembly Drawing Front View 157 OOO vl hr OOOOOOO OOOOOOOOOB 511 99 a 9 9cu 9 vtl OLLY EN L1 vciu r mm S8H BE t isu
8. R44 R97 Microprocessor ATS21aT496 EEPROM for RTC RESET Circuitry 5 03 MMBT3906 3 GND CLKOUT 499K ohn Figure 28 Main PCB Schematic Diagram Sheet 1 of 13 131 2D WR tc gt BLM31A601S L36 BOOTSEL HARD RESET INFIGUI RATION PDW POL 0 2 2003 U20 A 2 0 10 MT58L256L36FS 10 PND dn MTSBL256L36FS 10 03 JUA 79 PDS 80 Deco 2 0 16 1 17 6 POMS DEFAULT OUT L 5 1 DEFAULT OUT 1 ISB DEF AULT IN DEF AULT OUT L DEFAULT OUT L DBGCC DEF AULT IN O JEF AULT IN O DEFAULT ZINC CLKOUT b gt gt uN DE NNN D E 7 POU 8 20 9 PDL 12 22 93 87
9. be boxed NELLCOR N 595 ADULT LIMITS SPO2 BPM UPPER 86 LOWER 85 40 SAT S OFF SELECT ADULT EXIT C29 C95 MO M P Cw 10 Press and hold the ADJUST DOWN button 11 Verify that the minimum displayed value is 41 for the BPM upper alarm limit EXIT 12 Press the EXIT softkey LIMITS 13 Press the LIMITS softkey N 595 15 Performance Verification 14 SELECT Y m 2 lt LIMITS SELECT 16 Press the SELECT softkey four times Verify that the pulse rate lower alarm limit display indicates an alarm limit of 40 and is boxed 15 16 17 18 19 NELLCOR N 595 e rie spm 5 02 100 e S LOWER X BPM sS sars OFF 110 e SELECT NEO ADULT EXIT O OO C S Press hold the ADJUST DOWN button Verify that the boxed pulse rate lower alarm limit display reduces to a minimum of 30 Press and hold the ADJUST UP button and verify that the boxed pulse rate lower alarm limit display cannot be adjusted above the pulse rate upper alarm limit of 40 Press the EXIT softkey Press the LIMITS softkey Press the SELECT softkey two times Verify that SatSeconds SAT S alarm is selected NELLCOR N 595 ADULT LIMITS erin em UPPER LOWER SAT S SPO2 86 BPM 41 40 SP02 1 00 15 LSELECT NEO ADULT EXIT Ge
10. 1 Equipotential Terminal Ground 4 Fuse Receptacle 2 AC Power Connector 5 Supply Voltage Selector Switch 3 Data Port Connector Figure 2 N 595 Rear Panel Softkey Menu N 595 Introduction The N 595 hierarchy is outlined below The user chooses the type of trend data to view by selecting either Monitor trend or Sensor trend data in the Trend menu Sensor sub menu choices differ depending on what type of in sensor data is stored in the sensor chip such as event or loop The menu structure includes BACK softkey options that allow the user to move back to the previous menu level without exiting the Trend menu entirely Trend data must be compiled on entry reentry to the Trends menu When the softkeys are available both BACK and EXIT options are available The BACK softkey goes to the previous level and the EXIT softkey goes to the main menu If only one space is available the BACK Softkey is included this may require going back one or two levels to get to an EXIT softkey The BACK and EXIT softkeys are positioned on the right most softkeys respectively The below menu structure identifies e BOLDFACE TYPE softkey title as displayed on the monitor e Underlined Text description of the softkey menu item e Italicized Text the destination of the BACK and EXIT softkeys Main Menu LIMITS Limits Menu SELECT ADULT EXIT to Main menu TREND Trend Menu MON Monitor M
11. 1 Sensor Port With the monitor turned off connect the DOC 10 pulse oximetry cable to the sensor port Connect the SRC MAX tester to the other end of the DOC 10 cable Turn on the monitor by pressing the ON STANDBY button 27 Performance Verification Test 1 BPM 28 ED After the monitor completes POST the monitor will e bein SpO2 alarm e display an SpO2 of 75 pass criteria is 73 to 77 SpO2 inclusive display a pulse rate of 60 pass criteria is 57 to 63 BPM inclusive e pulse amplitude indicator display low level modulation low amplitude pulse amplitude indicator LIMITS TREND SETUP _ LIGHT Press the SRC MAX Pulse Rate selection button The SRC MAX Pulse Rate 200 LED will light The monitor BPM will increase to 200 and stabilize at 200 BPM The test pass criteria is 197 to 203 BPM inclusive The monitor will display e 75 SpO2 200 BPM pass criteria is 197 to 203 BPM inclusive alarm e pulse amplitude indicator low level modulation Performance Verification LIMITS TREND SETUP _ LIGHT 4 Press the SRC MAX Pulse Rate select button The SRC MAX Pulse Rate 60 LED will light 5 The monitor pulse rate will decrease to 60 and stabilize at 60 BPM The test pass criteria is 57 to 63 BPM inclusive 6 The monitor will display e 75 SpO2 60 BPM test pass criteria is 57 to 63 BPM inclusive alarm e pulse amplitude indi
12. MAXIM 1 ET aceooL U34 OUT IN2 z N ar EN CR TALK LT1013 LINEAR IGND SOP Interface Figure 31 Main PCB Schematic Diagram Sheet 4 of 13 137 NOTE ONE VIA PER 47UF CAP TO EACH VOLTAGE 2Kohm 1 AD5330BRU OTS SERCLK SERDATA 165Kohm 1 X9313XS Am Sound and LCD contrast voltage V Figure 32 Main PCB Schematic Diagram Sheet 5 of 13 139 MAIN_DC1 IN OUT GND 038 11121 MMBD914 2 ae VCC B 237 C 7 J SEN 5 2 LINEAR 30v 013 T 1 159 in copper gt MMBD914 J V GND 2 Kohms gt 105 3 10Mc A 3U CAP NEAR MAIN DUT OPEN COLLECTOR OUTPUT ACTIVE LOW INDICATOR 171
13. BLM318 PICRESET_L STOUT LIMFLT LIM ENB RCAL RCA RCALOUT RCALFB RCALTP ERROR IDMGOUT IRSOFF TLC22625 FLTOUT FLTIN IDMGIN IDMGC IDMGOUT IDMGOUT RDMGOUT 30MGOUT RDMGC VREF25 VREF5 ISET CYCLE TE ENLIMRST L ADCCLK Channels DET CPEN SENSE REOFB DETOPEN Figure 38 Main PCB Schematic Diagram Sheet 11 of 13 151 PICRESET_L R VPP 1 0 WA RAL TOCKL 742163121 1200hm RAS TX1 CK1 RBO CAPI A DVREF MODE RXD UART2 TXD UART2 DETOPEN bSCK SPI bSUO SP DVREF DA DVREF 162 ANL V
14. FAST SRAM 1MB BANK 1 FAST SRAM 1MB BANK 0 CLKOUT RAMET TME T FRESE N74LVCUOAD ace Logic Analyzer 6 ap SNTALVCUOAD VCCe43 3V gt U3 HARD RESET CONFIGURATION REGISTER m P ver PC FLASH Fast SRAM Overlay SRA Figure 29 SN7ALVCUOAD Main Schematic Diagram Sheet 2 of 13 133 1 156 7 SIPSOP_EN U26 IN OUT c 55 OpF 1Kohm GND1 GN22 3 2N7002LT1 R21 15Kohm 1 GNO IGND VCC IVCC GNOZIGND VCC IVCC AN 1 CATH2 ANOD2 GND ND IGND VCC IVCC GNO IGND VCC IVC 10 1 MMBT3906 MMBT3906LT1 NC_RELAY 100 1 CATH AQVA14A o CATH AQV210EHA Figure 30 Main PCB Schematic Diagram Sheet 3 of 13 135 100NF 20 50V RCV 485 ITX485_EN
15. osu E 098 Amm EH oo i 20 ra 0 g BH Imm 46 06H 96H LE ET e 585 M o v8 EH OLLD 2 6012 TI EH 8 N595 MAIN REV A OOOOOOO OOOOOOONB ASSY NO 062315 A OOON OOOH OOOO 18 R40 R43 a ji R42 04 4 1 e e
16. At the end of the printout an Output Complete line indicates that the transmission was successful If the Output Complete line is not present the data should be considered invalid N 595 VERSION X X X X TREND SpO2 Limit 70 100 PR Limit 60 160BPM ADULT TIME 12 FEB 02 14 00 05 12 FEB 02 14 00 09 12 FEB 02 14 00 13 Output Complete Figure 18 Trend Printout Graph Mode OSAT S SPO2 RESP MODE NORMAL SpO2 BPM 100 120 150 100 121 154 100 120 150 Trend Data Printout ASCII Mode The graph mode Figure 19 and Figure 20 disables all printout functions except trend data Trend printouts will be graphical 1f connected to a serial printer that N 595 121 Data Port Interface Protocol supports Epson ESC protocol To print in the Graph mode the monitor protocol must be changed to GRAPH See Communication Protocol on page 107 2HR TREND 25JUL99 14 35 05 100 95 98 Figure 19 Monitor Trend Data Printout Graph Mode GRAPH 1 5 02JANO2 07 54 05 90 75 8 2 85 en 70 L 84 87 80 7 65 00 02 3075 60 RUE CONCERN Figure 20 Sensor Event Record Printout Graph Mode Nurse Call An RS 232 Nurse Call signal pins 5 and 11 can be obtained by connecting to the data port It is in the form of a positive or negative voltage chosen by the user The remote location will be signaled anytime there is an audible alarm If the audible al
17. e Check the harness connection from the bottom enclosure to the User Interface PCB as instructed in User Interface PCB Removal Replacement on page 76 If the connection is good replace the User Interface PCB The N 595 generates an error code when disconnected from AC power The battery may be discharged To recharge the battery refer to Battery Charge on page 12 The monitor may be used with a less than fully charged battery but with a corresponding decrease in operating time from that charge The battery may be defective Battery Low indicator on during DC operation and an alarm is sounding There are 15 or fewer minutes of usable charge left on the N 595 battery before the instrument shuts off At this point if possible cease use of the N 595 on battery power connect it to an AC source and allow it to recharge approximately 14 hours The N 595 may continue to be used while it is recharging A full recharge of the battery while the monitor is being used takes 18 hours 53 Troubleshooting Condition Table 5 Power Problems Recommended Action Battery does not charge Replace battery if it is more than 2 years old e Ifthe battery fails to hold a charge replace the battery as indicated in Battery Replacement on page 67 Open the monitor as described in Monitor Disassembly on page 65 Verify the power supply s output to the battery while on AC Disconnect the battery leads from the pow
18. e Verify that connections are made between pins 5 GND and 11 nurse call of the data port Figure 16 on page 114 e Verify that the output voltage between ground pin 5 and pin 11 is 5 to 12 VDC no alarm and 5 to 12 VDC during alarm Figure 16 on page 114 e the condition still persists replace the User Interface PCB See User Interface PCB Removal Replacement on page 76 Error Codes An error code is displayed when the N 595 detects non correctable failure Table 10 provides a list of error codes for the N 595 When one of the following errors occurs N 595 sound a low priority alarm that cannot be silenced except by power down measurements stop red EEE is displayed in the SpO2 display area error code is displayed in the left numeric display cycling the power clears the displayed error code N 595 57 Troubleshooting Table 10 provides a list of error codes for the N 595 Table 10 Error Codes 2 Meaning 1 SpO2 front end RAM error 2 SpO2 front end ROM code integrity error 3 SpO2 front end reported a bad CRC 4 SpO2 front end reported FSP message not allowed 5 SpO2 front end reported illegal value sent in FSP messageSpO2 front end 6 SpO2 front end reports calibration offset failure 9 SpO2 front end reported syntax error in FSP message 10 Over current limit
19. in the bottom case rendering it unusable 10 Install the seven screws in the Power Supply and tighten 11 Connect the fan harness to J1 on the Power Supply 12 Install the PEM in the bottom case with the fuse drawer facing down A tab in the bottom case holds the PEM in place Insert the bottom wing of the PEM between the tab and the internal edge of the sidewall of the bottom case Push the PEM down and towards the outside of the monitor until it clicks into place 13 Complete the replacement procedure in paragraph Monitor Assembly on page 66 Cooling Fan Removal Replacement Removal 1 Complete the procedure in paragraphs Prior to Disassembly on page 64 and Monitor Disassembly on page 65 2 Disconnect the fan wire harness from J1 on the Power Supply PCB see Figure 10 72 Disassembly Guide 3 Lift the cooling fan from the slots in the bottom case J1 Figure 10 Cooling Fan Replacement 4 Connect the cooling fan wire harness to J1 on the Power Supply PCB Insert the cooling fan into the slots in the bottom case with the padded sides 5 s harness to the handle side of the case on the top and bottom and the fan 6 Complete procedure Monitor Assembly on page 66 73 595 Disassembly Guide Display PCB Removal Replacement Removal WARNING The LCD panel contains toxic chemicals Do not ingest chemicals from a broken LCD panel 1 Complete the proced
20. E Earth Leakage Current Specifications 102 Electromagnetic Emissions 95 Electromagnetic Immunity 96 Electrostatic Immunity Portable RF Equipment 98 Enclosure Leakage Current Specifications 102 Equipment Needed for Performance Checks 11 Errlog Softkey 42 Error Codes 57 Error Log Dump 116 Exit Softkey 39 Exploded View 83 Explosion Hazard 1 F Factory Default Settings 35 Fractional Saturation 126 Front Panel 4 Functional Checks 9 Functional Saturation 125 Fuse Replacement 64 G Graph Mode 121 Ground Integrity Specification 101 H Hospital Type Environments 3 I Info Softkey 44 Instat Softkey 43 167 Index Instrument Info Dump 115 Invalid Silence Duration 62 Invalid SpO2 Limit 62 L Language Selection 108 LB 120 LED Excitation Test 24 LM 120 Low Battery 62 LP 120 M Main Menu 5 Manufacturer s Declaration 95 Marquette Communications 112 Measured Saturation 126 MO 120 Monitor Accuracy and Motion Tolerance 89 Measurement Range 89 Monitor Assembly 66 Monitor Description 3 Monitor Disassembly 65 N Neonate Default Settings 35 Next Softkey 39 45 Nurse Call 21 122 Nurse Call Relay Pin States 123 Nurse Call Setup 109 O Operating Altitude 90 Atmospheric Pressure 90 Relative Humidity 91 Temperature 90 Operating Status Codes 120 Operation on Battery Power 23 Operation with a Live Subject 25 Operational Performance Problems 56 OXIMAX Technology 127 Oximetry Overview 125
21. ISO 7250 Year of manufacture symbol EN 980 Conductive coating and polymeric materials UL 2601 1 clause 55 Operation during physical shock IEC 60068 2 27 at 100 g Operation during vibration IEC 60068 2 6 and IEC 60068 2 34 Electromagnetic Compatibility IEC 60601 1 sub clause 36 IEC EN 60601 1 2 second edition Radiated and conducted emissions EN 55011 Group 1 Class B Harmonic emissions IEC 61000 3 2 Voltage fluctuations flicker emissions IEC 61000 3 3 Electrostatic discharge immunity EN 61000 4 2 level 3 table top equipment Radiated radio frequency electromagnetic field immunity IEC 61000 4 3 at 3V m Electrical fast transient burst immunity IEC 61000 4 4 level 3 Surge immunity IEC 61000 4 5 level 3 FDA Reviewer s Guide Conducted EMI susceptibility IEC 61000 4 6 at 3 V m Power frequency magnetic fields IEC 61000 4 8 at 3 V m Operation with line voltage variations IEC 61000 4 11 for Table 7 Operation with electrical line voltage variations FDA Reviewer s Guide Radiated magnetic field emissions RE 101 Army 7cm of MIL STD 461E Manufacturer s Declaration N 595 Specifications those specified may result in increased emission and or decreased immunity WARNING The use of accessories OxiMAx sensors and cables other than of the N 595 pulse oximeter Table 13 Electromagnetic Emi
22. Pulse Rate 20 beats per minute bpm to 250 bpm Perfusion Range 0 03 to 20 Accuracy and Motion Tolerance Saturation Without Motion Adult 70 to 100 2 digits Without Motion Neonate 70 to 100 3 digits With Motion Adult and Neonate2 70 to 100 3 digits Low Perfusion 70 to 100 2 digits Pulse Rate Without Motion gt 3 20 to 250 3 digits With Motion normal physiologic range e g 55 125 bpm 5 digits Low Perfusion 20 to 250 3 digits 1 Adult specifications are shown for MAX A and MAX N sensors with the N 595 Neonate specifications are shown for OxiMAXx MAX N sensors with the N 595 Saturation accuracy will vary by the OxiMAx sensor type Refer to the Sensor Accuracy Grid 2 Applicability OXIMAX MAX AL MAX P MAX I and MAX N Sensors Specification applies to monitor performance Display Update Interval 2 seconds 89 Specifications Electrical Instrument Power Requirements rated at 108 to 132 volts AC nominal 120 VAC or 200 to 240 volts AC nominal 230 VAC 20 volt amps to be compliant with IEC 60601 1 sub clause 10 2 2 Fuses qty 2 0 5 A 250 volts slow blow IEC 5 x 20 mm Battery The battery provides at least 2 hours of battery life when new and fully charged with no alarms no serial data no analog output no nu
23. 13 FEB 02 14 00 35 SD 13 FEB 02 14 00 37 SD 13 FEB 02 14 00 39 SD 13 FEB 02 14 00 41 SD 13 FEB 02 14 00 43 SD 13 FEB 02 14 00 45 SD 13 FEB 02 14 00 47 SD 13 FEB 02 14 00 49 SD N 595 VERSION 1 0 0 0 CRC XXXX SpO2 Limit 85 100 PR Limit 40 170BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM Status 13 FEB 02 14 00 51 SD N 595 VERSION 1 0 0 0 CRC XXXX 5 2 Limit 80 100 PR Limit 40 170BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM PA Status 13 FEB 02 14 00 53 79 59 50 SL PL 13 FEB 02 14 00 55 79 59 50 PS SL PL Figure 17 Real Time Printout N 595 117 Data Port Interface Protocol Column Heading To explain the printout it is necessary to break it down to its key components The first two lines of the chart are the Column Headings shown below Every 25th line a Column Heading is printed A column heading is also printed whenever a value of the Column Heading is changed There are three Column Headings shown in Figure 17 The third Column Heading was printed because the SpO limits changed from 85 100 to 80 100 N 595 VERSION X X X X CRC XXXX SpO2 Limit 70 100 PR Limit 60 160BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM Status Data Source N 595 VERSION CRC XXXX SpO2 Limit 70 100 PR Limit 60 160BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM Status Data in the highlighted box above represents the source of the pr
24. Alarm Silence Duration Off Setting Disabled Alarm Silence Duration 60 seconds Alarm Silence Reminder Enabled Alarm Volume 7 of 10 Data Port Baud Rate 9600 Data Port Protocol ASCII Display Contrast Midrange Display Format Pleth Sensor Event Record Type SpO2 Language English Nurse Call Polarity Normally Low Pulse Beep Volume 4 of 10 Pulse Rate Lower Alarm Limit 40 beats per minute inclusive 170 beats per minute SatSeconds Off Sensor Adjust Enabled Yes Trend Display SpO2 Service Functions N 595 Service functions can be used to select institutional defaults and to access information about the patient or instrument Only a Nellcor Customer Service Engineer should access some of the items available through the service functions These items will be noted in the text that follows 37 Power On Settings and Service Functions Accessing the Service Functions 38 LIGHT All service functions are accessible when the DOC 10 pulse oximetry cable is disconnected from the monitor Disconnect the OxiMAx sensor from MC 10 extension cable or disconnect the MC 10 extension cable from the instrument 1 Turn on the N 595 by pressing the ON STANDBY button 2 Wait for monitor power on self test to complete 3 Simultaneously press and hold the LIGHT softkey and the CONTRAST button until the service softkeys are displayed NELLCOR N 595 2 sop G9 PARAM PRIN
25. Once you isolate a suspected PCB follow the procedures in Disassembly Guide on page 63 to replace the PCB with a known good PCB Check to see if the trouble symptom disappears and that the monitor passes all performance tests If the trouble symptom persists swap back the replacement PCB with the suspected malfunctioning PCB the original PCB N 595 63 Disassembly Guide that was installed when you started troubleshooting and continue troubleshooting as directed in this section Prior to Disassembly 1 Turn the N 595 off by pressing the ON STANDBY button 2 Disconnect the monitor from the AC power source Fuse Replacement 1 Complete the procedure in paragraph Prior to Disassembly on page 64 2 Disconnect the power cord from the back of the monitor 3 Remove the fuse drawer from the power module by pressing down on the tab in the center and pulling out as shown in Figure 4 Figure 4 Fuse Removal 4 Put two new 5 x 20 mm slow blow 0 5 amp 250 volt fuses in the drawer and reinsert the drawer in the power entry module 64 Disassembly Guide Monitor Disassembly 1 Complete the procedure in paragraph Prior to Disassembly on page 64 2 Set the N 595 upside down as shown in Figure 5 Corner screws Figure 5 Corner Screws 3 Remove the monitor s four corner screws disassembling and reassembling the N 595 and when handling any of the 0 Caution Observe ESD electrostatic disch
26. P Packing for Shipment 85 168 Param Softkey 40 Parts List 82 Patient Applied Risk Current 34 Patient Applied Risk Current Specifications 102 Patient Isolation Risk Current 34 104 Performance Tests 11 Performance Verification 11 Periodic Safety Checks 9 PH 120 Physical Characteristics 92 PL 120 Power Entry Module Replacement 68 Power Problems 53 Power Supply Replacement 70 Power On Defaults 13 Power On Self Test 12 Power On Settings 35 Power Up Performance 12 Print Softkey 41 Printout Real Time 117 Problem Categories 52 PS 121 Pulse Tone Volume Control 20 R Reading Trends 62 Real Time Printout 117 Rear Panel 4 Recommended Separation Distances 99 Related Documents 8 Repacking in a Different Carton 87 Repacking in Original Carton 85 Replacement Level Supported 63 Reset Defaults 62 Reset Softkey 40 Returning the N 595 85 Routine Maintenance 9 5 Safety Analyzer 11 Safety Tests 33 SatSeconds Alarm Management 126 Save Defaults 62 Save Softkey 40 SD 121 Select Softkey 45 Sensor Disconnected 62 Sensor Power Dissipation 91 Sensor Softkey 40 Service Functions 37 Service Functions Accessing 38 Setting Date and Time 115 Setting Institutional Defaults 47 SH 121 SL 121 Softkey Menu 5 Software Version 12 SpaceLabs Communications 111 Spare Parts on Internet 8 Specifications 89 Battery 90 Compliance 93 Electrical 90 Electrical Instrument 90 Environmental 90 Performance 89 Ph
27. The output voltage is 0 0 to 1 0 VDC for all three parameters A 1 0 VDC output for saturation equals 10096 for pulse rate it equals 250 bpm and for plethysmographic waveform it equals 254 pulse amplitude units The voltage will decrease as the values for these parameters decrease If no data for a parameter is available the output voltage for that parameter will be 1 0 VDC After the completion of power on self test POST the instrument will initiate an automatic three step calibration signal The calibration signal will begin at 0 0 VDC and hold that point for 15 seconds It will then increase to 1 0 VDC and hold that value for 15 seconds The third part of the calibration signal is a stair step signal The stair step signal will start at 0 0 VDC and increase up to 1 0 VDC in 0 1 VDC increments Each increment will be held for 1 second Through use of the softkeys the 0 0 VDC 1 0 VDC or stair step signal can be selected individually see Analog Output on page 22 123 Technical Discussion Oximetry Overview The N 595 uses pulse oximetry to measure functional oxygen saturation in the blood Pulse oximetry works by applying an OxiMAx sensor to a pulsating arteriolar vascular bed such as a finger or toe sensor contains a dual light source and a photo detector Bone tissue pigmentation and venous vessels normally absorb a constant amount of light over time The arteriolar bed normally pulsates and absorb
28. i2 adno der E us 77 2 a aaa 79 Exploded ViOW aa 83 Packing tile ee lanes 86 Data Port Pin Layout 2 enne 114 Real Time Printout aeree tentes 117 Trend Data Printout ASCII Mode 121 Monitor Trend Data Printout Graph Mode 122 Sensor Event Record Printout Graph Mode 122 Oxyhemoglobin Dissociation Curve 126 Block Diagram 128 Main PCB Schematic Diagram Sheet 1 of 13 131 Main PCB Schematic Diagram Sheet 2 of 13 133 Main PCB Schematic Diagram Sheet of 13 135 Main PCB Schematic Diagram Sheet 4 of 13 137 Main PCB Schematic Diagram Sheet 5 of 13 139 Main PCB Schematic Diagram Sheet 6 of 13 141 Main PCB Schematic Diagram Sheet 7 of 13 143 Main PCB Schematic Diagram Sheet 8 of 13 145 Main PCB Schematic Diagram Sheet 9 of 13 147 Main PCB Schematic Diagram Sheet 10 of 13 149 Main PCB Schematic Diagram Sheet 11 of 13 151 Main PCB Schematic Diagram Sheet 12 of 13 153 Mai
29. 268 SpO2 back end reports reset detected 269 SpO2 back end reports unexpected value 270 SpO2 back end reports time out 271 SpO2 back end reports not ready not initialized 272 SpO2 back end reports double fault 273 SpO2 back end reports date out of range error 274 SpO2 back end reports incompatible software version 275 SpO2 back end reports incorrect registration number 276 SpO2 back end reports sensor read failure 277 SpO2 back end reports sensor signature verification fails 278 SpO2 back end reports warmed sensor temperature set point failure 279 SpO2 back end reports warmed sensor SpO2 front end incompatible 280 SpO2 back end reports does not support feature required by sensor 281 SpO2 back end reports overflow underflow 282 SpO2 back end reports sensor activation failure 512 General failure of UIF Module generic post 512 Dead battery Missing battery 514 Real time clock is non operational 515 Application code is not present in the flash 516 Invalid flash type 517 Serial clock line is not toggling or is toggling at an incorrect rate 518 Application program is corrupt 519 Invalid FE102 version 520 Error in the start up sequence 521 OS multitasking service failure 522 A state machine has received an unknown state transition 59 Troubleshooting Other Messages 60 Error Table 10 Error Codes Code Meaning 523 The operation just attempted w
30. 595 SpO2 Sensor Port through the DOC 10 pulse oximetry cable using a male 9 pin D type connector that has all pins shorted together During these tests the monitor will display 10 after the Nellcor screen Power On Settings and Service Functions Introduction This section discusses how to reconfigure power on default values and access the service functions Power On Settings The following paragraphs describe how to change power on default settings By using softkeys as shown in Figure on page 4 the user can change alarm limits the type of display baud rate time and date and trends to view Some values cannot be saved as power on default values An SpO2 lower alarm limit less than 80 will not be saved as a power on default Audible Alarm Off will not be accepted as a power on default An attempt to save either of these values as default will result in an invalid tone These limits can be adjusted lower for the current patient but they will be lost when the instrument is turned off A decimal point is added to the right of a display when the alarm limit for that display has been changed to a value that is not a power on default value If the new value is saved as a power on default value the decimal point will be removed By using the service functions changes can be saved as power on default values Factory Default Settings Factory default settings are divided into two groups adult and neonate
31. A not shown 071505 Power Cord International not shown 901862 Power Cord U K not shown 901863 Tilt Stand not shown 891340 GCX Mounting Kit not shown 035434 Figure 14 shows the N 595 expanded view with numbers relating to the spare parts list Parts Spare Figure 14 Exploded View N 595 Packing for Shipment Introduction To ship the monitor for any reason follow the instructions in this section Returning the N 595 Contact Nellcor s Technical Services Department or your local Nellcor representative for shipping instructions including a Returned Goods Authorization RGA number Unless otherwise instructed by Nellcor s Technical Services Department it is not necessary to return the OxiMAx sensor or other accessory items with the monitor Pack the N 595 in its original shipping carton If the original carton is not available use a suitable carton with appropriate packing material to protect it during shipping Return the N 595 by any shipping method that provides proof of delivery General Instructions Pack the monitor carefully Failure to follow the instructions in this section may result in loss or damage not covered by any applicable Nellcor warranty If the original shipping carton is not available use another suitable carton North American customers may call Nellcor s Technical Services Department to obtain a shipping carton Prior to shipping the monitor contact y
32. CD CD CD CD M Press the ADJUST UP button repeatedly and verify that the SatSeconds alarm display cycles from OFF through 10 25 50 100 OFF Press the ON STANDBY button to turn the monitor off n Press the ON STANDBY button to turn the monitor back on Performance Verification 23 Press the LIMITS softkey Verify that the SpO2 upper alarm limit display is e boxed and indicates an alarm limit of 100 24 Verify that the 5 2 lower alarm limit display is boxed and indicates an alarm limit of 85 25 Verify that the SatSeconds SAT S alarm is set to OFF 26 Verify that the pulse rate upper alarm limit display is boxed and indicates an alarm limit of 170 27 Verify that the pulse rate lower alarm limit display is boxed and indicates an alarm limit of 40 28 Press the ON STANDBY button to turn the monitor off Operational Setup Operational setup procedures verify and set up the following parameters Alarms and Alarm Silence on page 18 Alarm Volume Control page 20 e Pulse Tone Volume Control on page 20 e Nurse Call on page 21 Analog Output on page 22 Operation on Battery Power on page 23 N 595 17 Performance Verification Alarms and Alarm Silence 18 o m e 59 8 lt m o o r 79 m m r Cc m m m a o I 1 Sensor Port Connect the DOC 10 monitor cable to the monitor sensor port Conne
33. DOWN button to change selected parameter 7 Press the BACK softkey When ALLOW OFF is selected a choice is given between allowing an audible Alarm Off or disabling the audible alarm OFF Pressing the ADJUST UP or ADJUST DOWN button cycles between YES and NO If YES is selected the operator has the option of selecting AUDIBLE ALARM OFF If NO is selected the operator is not given the option of selecting AUDIBLE ALARM OFF as an alarm silence duration choice If the audible alarm is set to Off a reminder tone can be sounded every 3 minutes to notify the user of this condition The ADJUST UP and ADJUST DOWN buttons can be used to change the choice from YES to NO Selecting YES enables the Reminder Selecting NO disables the Reminder when the audible alarm is set to Off Setting Institutional Defaults Sample N 595 Power up default values may be changed to institutional power up default values Set the desired limits in the normal operation mode and you will set the institutional defaults in the monitor s service mode The following default values may be set e Alarm Silence Duration 30 60 90 120 seconds Alarms Allow Off Yes No Off Reminder Yes No e Alarm Volume 1 to 10 Sensor Event Record Type SpO SpO BPM Default e Nurse Call Priority RS 232 normally high normally low Pulse Beep Volume 0 to 10 Pulse Rate Upper Alarm Limit lower limit plus 1 to 250 bpm Pulse Rate Lower Alarm Limit
34. MHz 80 MHz Note Field strengths from fixed transmitters such as base stations for radio cellular cordless telephones and land mobile radios amateur radio AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with survey accuracy To assess the electromagnetic environment due to fixed RF transmitters an electromagnetic site survey should be considered If the measured field strength in the location in which the N 595 is used exceeds the applicable RF compliance level above the N 595 should be observed to verify normal operation If abnormal performance is observed additional measures may be necessary such as re orienting or relocating the N 595 Note These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people Interference may occur in the vicinity of equipment marked with the following symbol 14 595 Specifications Table 16 Recommended Separation Distances Recommended Separation Distances between Portable and Mobile RF Communications Equipment and the N 595 IEC 60601 1 2 Frequency of 26 MHz to 80 MHz to 800 MHz to Transmitter 80 MHz 800 MHz 2 5 GHz Equation d 1 2 P 4 12 d 2 3 P Rated Maximum Separation Separation Separation Output Power Distance in Distance in Distance in of Transmitter Meters Meters Meters in Watts 0 01 0 12 0 12 0 23 0 1
35. Parts 81 Parts e 82 Packing E EA CREE RSS 85 85 Returning thie N 595 serrana oa eH REO I 85 Contents General Instructions 85 Repacking in Original 85 Repacking a Different Carton 87 558 MI lv PU 89 gt 89 Electrical 90 Environmental 90 Physical Characteristics i E IEEE n 92 93 Manufacturer s Declaration 95 RIA Em 101 Grourid Integrity c es Sead hdd ede cie b ei P 101 Earth Leakage Current esci ERR 102 Enclosure Leakage Current cecccccneeseeccceeeeeesecceneeeedeeeeeeeeeseeceeeneeeaee 102 Patient Applied Risk Current 102 Patient Isolation Risk Current sssssssssese eee 104 Data Port Interface 105 a 105 Configuring the Data Port 105 Communication Baud Rate sss eme 106 Communication Proto
36. User Interface PCB and the Display PCB e Ifthe condition does not change replace the Display PCB See Display PCB Removal Replacement on page 74 e Ifthe condition still persists replace the User Interface PCB See User Interface PCB Removal Replacement on page 76 Alarm sounds for no apparent reason Moisture or spilled liquids can cause an alarm to sound Allow the monitor to dry thoroughly before using e Ifthe condition persists replace the User Interface PCB See User Interface PCB Removal Replacement on page 76 Alarm does not sound e Check alarm silence status e Check speaker connection e Replace the speaker as described in Alarm Speaker Removal Replacement on page 78 e Ifthe condition persists replace the User Interface PCB See User Interface PCB Removal Replacement on page 76 N 595 55 Troubleshooting Operational Performance Table 8 lists symptoms of problems relating to operational performance no error codes displayed and recommended actions If the action requires replacement of a PCB or module refer to Disassembly Guide on page 63 Table 8 Operational Performance Problems Symptom Recommended Action The Pulse Amplitude OXIMAX sensor may be damaged replace it indicator seems to indicate a pulse but the e Ifthe condition still persists replace the User E a Interface PCB See User Interface Removal Replacement on page 76 Sp
37. desired protocol 8 Press the EXIT softkey set the protocol The protocol setting will be in effect until the monitor is powered off Note The protocol setup for the monitor may be saved as institutional default settings See Setting Institutional Defaults Sample on page 47 Use care when performing this procedure because all settings will be saved as institutional default settings Language Selection 108 Eleven languages can be viewed on the screen and sent to the printer The languages are ENGLISH DANSK Danish FRANCAIS French DEUTSCH German ITALIANO Italian ESPANOL Spanish NEDERLANDS Dutch NORSK Norwegian PORTUG Portuguese SUOMI Finnish and SVERIGE Swedish 1 Turn on the N 595 by pressing the ON STANDBY button Data Port Interface Protocol 2 Press the SETUP softkey SETUP NEXT 3 Press the NEXT softkey LANG 4 Press the LANG softkey LANG ENGLISH ds 1 00 100 BACK EXIT C 5 Usethe ADJUST UP and ADJUST DOWN buttons to select the desired Cw language BACK 6 Press the BACK softkey to save the language setting Nurse Call Setup N 595 The voltage polarity for the Nurse Call available at pins 11 and 5 can be selected through the softkeys NORM sets the voltage to 5 VDC to 12 VDC and NORM sets the voltage to 5 VDC to 12 VDC when there is no audible alarm When an audible alarm occurs these voltages switch polarity This sig
38. in SpO2 front end has tripped 11 SpO2 front end reports incorrect system voltage 12 SpO2 front end reports other hardware problem 14 SpO2 front end reports communication channel overflow 16 SpO2 front end reports watch dog time out 17 SpO2 front end reports that sensor appears defective 18 SpO2 front end reports internal register appears modified from expected value 19 SpO2 front end reports signal out of range 48 SpO2 front end reports spurious interrupt 49 SpO2 front end reports internal buffer overflow 50 SpO2 front end reports intermittent error 51 SpO2 front end reports digital communications error 52 SpO2 front end reports warmer error 53 Front end data not received 256 SpO2 back end reports beginning of packet missing 257 SpO2 back end reports packet start ID SID missing 258 SpO2 back end reports packet length error 259 SpO2 back end reports message length error 260 SpO2 back end reports packet contains unsupported Key 261 SpO2 back end reports packet CRC error 262 SpO2 back end reports end of packet missing 263 SpO2 back end reports packet contains undefined key 58 595 Error Troubleshooting Table 10 Error Codes Code Meaning 264 SpO2 back end reports corrupted variable 265 SpO2 back end reports memory overflow 266 SpO2 back end reports bad pointer 267 SpO2 back end reports parameter value out of range
39. indicating that the changes have been saved as power on default values The new saved values will continue to be used through power on and off cycles until they are changed and saved again or until they are reset If NO is pressed the changed values will not be saved Note An invalid tone indicates that a parameter value cannot be saved as a power on default See Power On Settings on page 35 Along with the invalid tone a message will be displayed indicating which parameter could not be saved as a power on default Sensor Softkey SENSOR The SENSOR softkey enables disables the Sensor Event Record function 40 Power On Settings and Service Functions Print Softkey Menu PRINT Accessing the PRINT softkey makes four printouts available See Data Port Interface Protocol 105 for information about how to make connections to the data port and how data is presented in a printout The appropriate printout can be selected by pressing the corresponding softkey The softkey configuration that appears after the PRINT softkey has been pressed is shown below NELLCOR N 595 2 9 TREND ERRLOG INSTAT e we c e 0 T M Up to 48 hours of trend data can be viewed on the printouts described below When the monitor is turned on trend data is recorded every 4 seconds As an example an instrument that is used 6 hours a week would take approximately 8 weeks to fill i
40. on page 28 The pulse amplitude indicator should indicate high level modulation 5 Perform Test 2 SpO2 on page 29 The pulse amplitude indicator should indicate high level modulation 6 Press the SRC MAX Modulation selection button The SRC MAX Modulation W LED will light 7 The monitor pulse amplitude waveform will decrease in amplitude MATE LIMITS TREND SETUP LIGHT N 595 31 Performance Verification 10 Test 4 Light 32 The monitor will display e 75 SpO2 60 alarm e pulse amplitude indicator low level modulation Perform Test 1 BPM on page 28 The pulse amplitue indicator should indicate low level modulation Perform Test 2 SpO2 on page 29 The pulse amplitue indicator should indicate low level modulation Press the SRC MAX Light Level selection button The SRC MAX Light Level LED will light The monitor pulse amplitude waveform will initially increase in amplitude and then stabilize NELLCOR EA VENE BPM The monitor will display e 75 5 2 test pass criteria is 73 to 77 SpO2 inclusive e 2 60 BPM test pass criteria is 57 to 63 BPM inclusive alarm e pulse amplitue indicator high level modulation Safety Tests N 595 11 Performance Verification Perform Test 1 BPM on page 28 The pulse amplitue indicator should indicate high level modulation Perform Test 2 SpO2 on page 29 The pulse amplitue indicator shoul
41. tighten the seven screws to a maximum of 4 inch pounds Over tightening could strip out the screw holes in the bottom case rendering it unusable Manual Overview A This manual contains information for servicing the Nellcor model N 595 pulse oximeter Only qualified service personnel should service this product Before servicing the N 595 read the operator s manual carefully for a thorough understanding of safe operation of the N 595 WARNING Explosion hazard Do not use the N 595 pulse oximeter in the presence of flammable anesthetics Introduction Description of N 595 Monitor N 595 The N 595 Monitor is intended for the continuous non invasive monitoring of functional oxygen saturation of arterial hemoglobin SpO2 and pulse rate The N 595 is intended for use with neonatal pediatric and adult patients during both no motion and motion conditions and for patients who are well or poorly perfused in hospitals hospital type facilities intra hospital transport and home environments For prescription use only Note Hospital use typically covers such areas as general care floors operating rooms special procedure areas intensive and critical care areas within the hospital plus hospital type facilities Hospital type facilities include physician office based facilities sleep labs skilled nursing facilities surgicenters and sub acute centers Intra hospital transport includes transport of a patient within the hospital o
42. 0 38 0 38 0 73 1 1 2 1 2 2 3 10 3 8 3 8 7 3 100 12 12 23 For transmitters rated at a maximum output power not listed above the separation distance can be estimated using the equation in the corresponding column where P is the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer Note These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people 99 Specifications 100 Table 17 Cables Cables and Maximum 2 Sensors Length Complies Wath DOC 10 pulse 10 ft 3 m RF emissions CISPR 11 oximetry cable Class B Group 1 Harmonic emissions IEC 61000 3 2 RS 232 serial 15 to 9 pin D Voltage fluctuations flicker emission IEC 61000 3 3 Non terminated 10 ft 3 m cable RS 232 Analog 15 pin Electrostatic discharge ESD p IEC 61000 4 2 Oxinet hardwire 10 ft 3 m e Electric fast transient burst cable IEC 61000 4 4 Printer cable 10 ft 3 m RS 232 15 to 9 Surge IEC 61000 4 5 pin D Conducted RF IEC 61000 4 6 HP Agilent 3 3 ft 1 m Radiated RF IEC 61000 4 3 GE Marquette 3 3 ft 1 m interface cable Datex Ohmeda 3 3 ft 1 m interface cable Oxinet II Data 10 ft 3 m Cable OXIMAX sensors MAX A MAX AL MAX I MAX N MAX P MAX R 1 5 feet 0 5 m
43. 100 milliohms or less N 595 101 Specifications Earth Leakage Current Enclosure Leakage Current Neutral IEC 60601 1 AC Polarity Line Cord Cord AAMI UL 2601 1 ANSI ES1 Normal Closed Closed 500 uA 300 pA Reversed Closed Closed 500 uA 300 uA Normal Open Closed 1000 pA 500 uA Normal Closed Open 1000 pA 500 uA Power AC Line Neutral Line AAMI ANSI Polarity Line Cord Ground 60601 1 ES1 UL 2601 1 Cable Normal Closed Closed 100 uA 300 uA Normal Closed Open 500 uA 300 uA Normal Open Closed 100 uA 300 pA Reversed Closed Closed 500 uA 300 uA Reversed Open Closed 500 uA 300 pA Reversed Closed Open 500 uA 300 uA AAMI ANSI ESI does not include opening the line conductor Patient Applied Risk Current 102 Pus me ieiti AAMI ANSI ESI Cable UL 2601 1 Normal Closed Closed 100 pA 10 pA Normal Open Closed 500 pA 50 pA Normal Closed Open 500 uA 50 pA Reversed Closed Closed 100 pA 10 pA Reversed Open Closed 500 pA 50 pA 595 Specifications Power Line IEC ae Ground 60601 1 AAMI ANSI ESI Cable UL 2601 1 Reversed Closed Open 500 uA 50 pA These requirements are generally for IEC 60601 1 Class 1 TYPE CF classified products 103 Specifications Patient Isolation Risk Current 104 Power Line AC Line Neutral Ground IEC 60
44. 1000 4 4 1 kV for input output lines 1 kV for input output lines commercial and or hospital environment Surge IEC 61000 4 5 1 differential mode 2 kV common mode 1 differential mode 2 kV common mode Mains power quality should be that of a typical commercial and or hospital environment Note is the AC mains voltage prior to application of the test level Specifications Table 14 Electromagnetic Immunity The N 595 is suitable for use in the specified electromagnetic environment The customer and or user of the N 595 should assure that it is used in an electromagnetic environment as described below Immunity IEC60601 1 2 Compliance Electromagnetic Environment Test Test Level Level Guidance Voltage dips 5 lt 5 Mains power quality short should be that of a typical interruptions and commercial and or voltage hospital environment If variations on gt 95 dip in gt 95 dip in the user of the N 595 power supply for 0 5 cycle for 0 5 cycle requires continued operation during power 0 0 mains interruption it is MAN recommended that the IEC 61000 4 11 N 595 be powered from an uninterruptible power 60 dip in 60 dip in Ur SUPPIY or battery for 5 cycles for 5 cycles 70 70 Ur 30 dip in 30 dip in for 25 cycles for 25 cycles 5 UT 5 UT 95 dip i
45. 20 bpm to upper limit minus 1 SatSeconds OFF 10 25 50 100 e Sensor Adjust Enable Yes No Data Port Baud Rate 2400 9600 19200 47 Power On Settings and Service Functions Data Port Mode ASCH OXINET CLINICAL GRAPH AGILENT Agilent HP monitor SPACELB SpaceLabs monitor MARQ GE Marquette monitor DATEX Datex Ohmeda AS 3 monitor Available selections depend on the software installed in your N 595 e SpO Upper Alarm Limit lower limit plus 1 to 100 e SpO2 Lower Limit 80 to upper limit minus 1 Use the following procedure to set institutional defaults 1 Disconnect the OxiMAx sensor from monitor Note If the OxiMAx sensor is not disconnected the only softkeys on the screen will be PARAM and EXIT 2 Set desired parameters to the institutional values Refer to the N 595 Operator s Manual for the procedures to set the values 3 Simultaneously press the LIGHT softkey and the CONTRAST button until the menu bar changes to the softkey headings shown below NELLCOR N 595 RESET SAVE SENSOR BACK G GP CD CD CD BPM e 48 595 SAVE YES Power On Settings and Service Functions 5 Press the SAVE softkey NELLCOR 6 Press the YES softkey The monitor will sound three beeps indicating that defaults have been saved 49 Troubleshooting Introduction This section explains
46. 2ASB TH moO W5 Battery Figure 43 Linear Power Supply Schematic Diagram 161 l NELLCOR PURITAN BENNETT NPB 190 LPS 2 TOP SIDE et Lu 1 LE 4107 BRI 4 uy O L ron O L rOr2 DC FERRITE Figure 44 Linear Power Supply Assembly Drawing 163 Index A Accessories on Internet 8 Adult Default Settings 37 Agilent HP Communications 111 Alarm Management SatSeconds 126 Alarm Off 47 Alarm Range Limits 13 Alarm Silence 18 Alarm Speaker Replacement 78 Alarm Volume Control 20 Alarms Softkey 45 Analog Calibration Setup 110 Analog Output 22 123 AO 120 AS 120 ASCII Mode 121 B Battery 10 Battery Charge 12 Battery Replacement 67 Block Diagram Theory 128 BU 120 Button Problems 54 C Cables 100 Calculated Saturation 126 Calibration 9 Cautions 2 Cleaning 9 Communication Baud Rate 106 Communication Protocol 107 Communication With a PC 115 Configuring the Data Port 105 Connecting to the Data Port 113 Cooling Fan Replacement 72 D Data Port Interface Protocol 105 Data Port Pin Layout 114 Data Port Pin Outs 113 Data Port Problems 57 Data Port Connecting To 113 N 595 Date and Time 115 Datex Ohmeda Communications 113 Digital Multimeter 11 Disassembly Guide 63 Disinfecting 9 Display PCB Replacement 74 Downld Softkey 45 Dump Error Log 116 Dump Instrument Info 115 Dump Trend 116
47. 3 feet 0 9 m 1 5 feet 0 5 m 1 5 feet 0 5 m 1 5 feet 0 5 m 1 5 feet 0 5 m OXIMAX Oxiband sensors OXI A N OXI P I 3 feet 0 9 m RF emissions CISPR 11 Class B Group 1 Harmonic emissions IEC 61000 3 2 Voltage fluctuations flicker emission IEC 61000 3 3 e Electrostatic discharge ESD 61000 4 2 Electric fast transient burst IEC 61000 4 4 Surge 61000 4 5 Conducted RF IEC 61000 4 6 Radiated RF IEC 61000 4 3 Specifications Table 17 Cables Cables and Maximum 2 Sensors Length Complies Wath OXIMAX 3 feet 0 9 m RF emissions CISPR 11 Durasensor Class B Group 1 sensor DS 100A Harmonic emissions IEC 61000 3 2 Voltage fluctuations flicker emission IEC 61000 3 3 Electrostatic discharge ESD IEC 61000 4 2 Electric fast transient burst IEC 61000 4 4 Surge IEC 61000 4 5 Conducted RF IEC 61000 4 6 Radiated RF IEC 61000 4 3 OxiCliq OC 3 cable Sensors 3 feet 0 9 P N I A OxIMAX 4 feet 1 2 m Dura Y sensors D YS D YSE D YSPD RF emissions CISPR 11 Class B Group 1 Harmonic emissions IEC 61000 3 2 Voltage fluctuations flicker emission IEC 61000 3 3 Electrostatic discharge ESD IEC 61000 4 2 Electric fast transient burst IEC 61000 4 4 Surge IEC 61000 4 5 Conducted RF IEC 61000 4 6 Radiated RF IEC 61000 4 3 Safety Tests Ground Integrity
48. 4 7 in Hg Relative Humidity 1596 to 95 non condensing OxiMAx Sensor Power Dissipation Sensor Dissipation MAX N 52 5 mW OxiMAX MAX I 52 5 mW MAX P 52 5 mW MAX A 52 5 mW MAX AL 52 5 mW MAX R 52 5 mW OxiMAx Durasensor DS 100A 52 5 mW OxiCliq P 52 5 mW OXIMAX OxiCliq N 52 5 mW 91 Specifications OxiMAx Sensor Power Dissipation Sensor Dissipation OxiCliq I 52 5 mW OxiMAx OxiCliq A 52 5 mW OxIMax Dura Y D YS 52 5 mW MAX FAST 52 5 mW Physical Characteristics Weight 5 8 Ibs 2 6 kg Dimensions 3 3 in x 10 4 in x 6 8 in 8 4 cm x 26 4 cm x 17 3 cm 92 Compliance N 595 Item Specifications Compliant With Equipment classification Safety Standards IEC 60601 1 same as EN60601 1 CSA 601 1 UL 2601 1 EN865 EN IEC 60601 1 2 second edition Type of protection Class 1 on AC power Internally powered on battery power Degree of protection Type BF Applied part Mode of operation Continuous N 595 resistant to liquid ingress IEC 60601 1 sub clause 44 6 for class IPX1 Drip Proof equipment Degree of Safety in presence of a flammable anaesthetic UL 2601 1 sub clause 5 5 Not suitable Applied sensor label to indicate Type BF applied part IEC 60601 1 Symbol 2 of Tabl
49. 601 1 AAMI Polarity Line Cable UL 2601 1 ANSI ES1 Normal Closed Closed 5 mA 50 pA Reversed Closed Closed 5 mA 50 pA These requirements are generally for IEC 60601 1 Class 1 TYPE CF classified products Data Port Interface Protocol Introduction When connected to the data port on the back of the N 595 printouts can be obtained or patient data can be communicated to a Nellcor Oxinet II monitoring system Nellcor Intouch Remote Oximetry Notification System or personal computer PC Analog signals representing SpO2 pulse rate and pulse amplitude are also provided by the data port A nurse call function is also available from the data port Each of these is discussed in more detail in the paragraphs that follow The N 595 provides a bedside monitor interface for interfacing the N 595 with Agilent HP SpaceLabs Marquette and Datex monitors Configuring the Data Port N 595 Items pertaining to the data port can be adjusted by following the softkey map below For a complete description of the softkeys see the N 595 operator s manual SETUP NEXT LANG ENGLISH DANSK FRANCAIS DEUTSCH ITALIANO ESPANOL NEDERLANDS NORSK PORTUG SUOMI SVERIGE c BACK back to Setup menu NEXT COMM SELECT BAUD 2400 9600 19200 PROTOCOL ASCII OXINET CLINICAL GRAPH 105 Data
50. 84 Q 5 2 OXIMAX 595 Pulse Oximeter Service Manual This ISM device complies with Canadian ICES 001 Cet appareil ISM est conforme 4 la norme NMB 001 Canada Nellcor Puritan Bennett Inc is an affiliate of Tyco Healthcare Nellcor Oxiband Durasensor OxiCliq Dura Y Max Fast and OxiMax are trademarks of Nellcor Puritan Bennett Inc To obtain information about a warranty if any contact Nellcor s Technical Services Department or your local representative Purchase of this instrument confers no express or implied license under any Nellcor Puritan Bennett patent to use the instrument with any sensor that is not manufactured or licensed by Nellcor Puritan Bennett Covered by one or more of the following U S Patents and foreign equivalents 4 621 643 4 653 498 4 700 708 4 770 179 Re 35 122 4 802 486 4 869 254 4 928 692 4 934 372 5 078 136 5 351 685 5 368 026 5 485 847 5 533 507 5 662 106 and 5 853 364 Contents ee ee ee xe V EET vi Lacs 5 59 5 555 T 1 FUE nre 1 ere 2 Manual OVErVIOW MN 2 Description of N 595 3 reram e 4 pci S 4 Scc 5 Related Documenis nente ne ERR Ro Rn EE RN ERR N
51. AD NT2LTI GND AGND V i lt E CLK156KHZ d i 01 ve 2 VOD MMBD301LT1 LLK625KHZ Front end power lt 7 Front end power gt 5 25 vol VEE FRONT_END_RST 09 TN2106K1 R55 4 5 Serial Reset Isolated Interface T Ethernet Connector Figure 37 Main PCB Schematic Diagram Sheet 10 of 13 149 BACK_SHELL 0805 50 1 060 0605071 INR SHIELO AGND Z YS51R5 2P DET_ANODE DET_CATHODE BACK SHELL OUTR_SHIELD TESTOPEN MMBD6050LT1 2Kohm 1 R86 VU 499Kohm 1 R99 9 9 1 100 1 TLC22625 CHL LED LED DIFFFB DIFFIN DIFFIN DIFF JARK BATSALTI RED ROMGIN DK AMPOUT DKCAP STIN L37
52. AG3 ANO RG5 P bMODE DRXD UARTZ RG6 RX2 DT2 TXD_UART2 RG7 TX2 CK2 1200hm RC2 A02 RC3 RCA ADA ACS AD5 RC6 AD6 ACH ADT 900 08 02 4010 RDA AD12 R05 AD13 RO6 ADLA RD7 AD15 REO ALE REL OE REZ WR RF1 ANS RF2 AN6 RF3 AN7 RF4 ANE RF6 ANLO 7 11 L CLKIN 2 CLKOUT AVSS TEST 1 ASIC_RESET_L bDACDATA bZERO TI ZERO T bLIM LIM PTCRTN_L PTCPWR L REF A REF B PTC REF_H L TESTOPEN 4201631213 IRSDFF REDSDFF SRDET H VREFSUPPLY 1200hm WARMRESET L DETOPEN TESTOPEN 4 GND 121 2 LINEAR vV Front End M crocontroller CLK 625KHZ Main PCB Schematic Diagram Figure 39 Sheet 12 of 13 153 026 0334 MMBFO202PLT1 ISCLMP 152 VODA 6 E He VDOAIN MMBD6050LT1 F2 MINISMOCO14 PTCRTN L MC74HCO4AD D AGND VCC VOD WARMP_RTN GND AGND VCC U66 L gn MCTAHCOLAD U66 MCTAHCOLAD GND AGND VCC VDD A MAXLDRE
53. Default settings may be changed to institutional default settings refer to Setting Institutional Defaults Sample on page 47 Neonate Default Settings Table 2 Neonate Alarm Limit Factory Defaults Monitoring Mode Setting Note Bold entries are different than adult default settings SpO2 Lower Alarm Limit 80 N 595 35 Power On Settings and Service Functions 36 Table 2 Neonate Alarm Limit Factory Defaults Monitoring Mode Setting Note Bold entries are different than adult default settings SpO2 Upper Alarm Limit 95 Alarm Silence Duration 60 seconds Alarm Silence Duration Off Setting Disabled Alarm Silence Reminder Enabled Alarm Volume 7 of 10 Data Port Baud Rate 9600 Data Port Protocol ASCII Display Contrast Midrange Display Format Pleth Sensor Event Record Type SpO2 Language English Nurse Call Polarity Normally Low Pulse Beep Volume 4 of 10 Pulse Rate Lower Alarm Limit 90 beats per minute Pulse Rate Upper Alarm Limit 190 beats per minute SatSeconds Off Sensor Adjust Enabled Yes Trend Display SpO2 Adult Default Settings Power On Settings and Service Functions Table 3 Adult Alarm Factory Defaults Monitoring Mode Setting Note Bold entries are different than neonate default settings SpO2 Lower Alarm Limit 85 SpO2 Upper Alarm Limit 100
54. N 595 The battery charge procedure should be performed before monitor repairs whenever possible Note This section is written using Nellcor factory set defaults If your institution has pre configured custom defaults those values will be displayed Factory defaults can be restored see Reset Softkey on page 40 11 Performance Verification Battery Charge Perform the following procedure to fully charge the battery 1 Connect the monitor to an AC power source r 2 Verify that the monitor is off and that the AC Power Battery Charging indicator is lit 3 Charge the battery for at least 14 hours with the monitor turned off or 18 hours with the monitor turned on Power Up Performance The power up performance tests verify the following monitor functions Power On Self Test on page 12 Power On Defaults and Alarm Range Limits on page 13 Power On Self Test 1 Connect the monitor to an AC power source fan 2 Verify that the monitor is off and that the AC Power Battery Charging indicator is lit 3 Do not connect any cables to the monitor 4 Turn on the N 595 by pressing the ON STANDBY button Observe the monitor front panel The monitor must perform the following e Within 2 seconds all LEDs are illuminated all pixels on the LCD display are illuminated and the backlight comes on indicators remain lighted e The LCD display shows NELLCOR and the software version of the N 595 12 Pe
55. O2 alarm of 75 5 Verify an output voltage at pins 5 and 11 between 5 to 12 VDC 6 Press the ALARM SILENCE button With no active audible alarm the output voltage at pins 5 and 11 must be between 5 to 12 VDC This verifies the RS 232 Nurse Call function 7 With the instrument in an alarm condition use a digital voltmeter DVM to verify that there is no continuity 1 megohms or greater between pins 8 and 15 and that there is continuity 60 ohms or less between pins 7 and 15 8 Press the SRC MAX tester SpO2 button to change the 5 2 to 90 N 595 21 Performance Verification Analog Output 9 10 11 12 13 14 15 1 2 3 4 5 6 T 8 gt gt 2 gt z lt 2 gt x x x d c 4 v 22 9 Use a DVM to verify that there is continuity between pins 8 and 15 and that there is no continuity between pins 7 and 15 This verifies the solid state Nurse Call function 1 Data Port Connector 1 Connect the negative lead of a voltmeter to pin 10 and the positive to lead pin 6 of the data port connector 1 on the back of the monitor 2 Press the SETUP softkey 3 Press the NEXT softkey 4 Press the NEXT softkey 5 Press the NEXT softkey 6 Press the ANALOG softkey 7 Press the 1 VOLT softkey 8 Verify that the monitor s output voltage is 1 0 0 025 VDC This verifies the analog SpO2 function 9 Leave the negative lead con
56. O2 or Pulse values OXIMAX sensor may be damp or may have change rapidly Pulse been reused too many times Replace it Amplitude indicator is erratic electrosurgical unit ESU may be interfering with performance Move the N 595 and its cables and OXIAX sensors as far from the ESU as possible Plug the N 595 power supply and the ESU into different AC circuits Move the ESU ground pad as close to the surgical site as possible and as far away from the OXIMAX sensor as possible e Verify the performance with the procedures detailed in Performance Verification on page 11 e Ifthe condition still persists replace the User Interface PCB See User Interface PCB Removal Replacement on page 76 56 Data Port Troubleshooting Table 9 lists symptoms of problems relating to the data port and recommended actions If the action requires replacement of the User Interface PCB refer to Disassembly Guide on page 63 Symptom Table 9 Data Port Problems Recommended Action No printout is being received e Confirm that printer is working through alternate means The monitor s baud rate does not match the printer Change the baud rate of the monitor following instructions in Configuring the Data Port on page 105 e Ifthe condition still persists replace the User Interface PCB See User Interface PCB Removal Replacement on page 76 The RS 232 nurse call is not working
57. PM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM Status 13 FEB 02 14 00 05 100 190 50 PH The Status column indicates alarm conditions and operating status of the N 595 In this example the PH means Pulse High The status codes are listed in Table 19 As many as 4 codes can be displayed at one time in the Status column Table 19 Operating Status Codes Code Meaning AO Alarm Off AS Alarm Silence BU Battery in Use LB Low Battery LM Loss of Pulse with Motion LP Loss of Pulse MO MOtion PH Pulse Rate Upper Limit Alarm PL Pulse Rate Lower Limit Alarm 120 Data Port Interface Protocol Table 19 Operating Status Codes Code Meaning PS Pulse Search SD Sensor Disconnect SH Saturation Upper Limit Alarm SL Saturation Lower Limit Alarm No Data Available Alarm Parameter Being Violated Note A Sensor Disconnect will also cause three dashes to be displayed in the patient data section of the printout Trend Data Printout ASCII Mode The format of data displayed when a trend printout is requested is similar to that of the real time data The only differences are that TREND is displayed in the top row instead of the software verification number and there is no Status column Figure 18 Readings are displayed in 2 second intervals The values on each row are an average for the 2 second period
58. Port Interface Protocol Communication Baud AGILENT HP Agilent monitors SPACELBS Spacelabs monitors MARQ GE Marquette monitors DATEX Datex Ohmeda AS 3 monitor BACK back to Setup menu EXIT back to Main menu NCALL Nurse Call NORM NORM BACK back to Setup menu EXIT back to Main menu NEXT ANALOG OVOLT 4VOLT STEP BACK back to Setup menu EXIT back to Main menu c BACK back to Setup menu BACK back to Setup menu EXIT back to Main menu Rate The baud rate may need to be changed to match the abilities of the attached equipment Perform the following procedure to change the baud rate to 2400 9600 or 19200 Note When setting the communication protocol to AGILENT SPACELBS SETUP 2 NEXT 3 NEXT 4 106 MARQ or DATEX the communication baud rate is automatically set to the applicable baud rate Turn on the N 595 by pressing the ON STANDBY button Press the SETUP softkey Press the NEXT softkey Press the NEXT softkey Data Port Interface Protocol 5 Press the COMM softkey COMM 60 Communication Protocol SERIAL PORT SETUP SP02 BAUD 9600 ae 1 00 PROTOCOL ASCII 1 00 SELECT BACK EXIT 6 Usethe ADJUST UP and ADJUST DOWN buttons to select the desired baud rate 7 Press the EXIT softkey set the baud rate The ba
59. R n ban 8 Routine Maintenance 9 CIGANING i creen EA EE 9 Periodic Safety Checks 2 9 Functional Checks p a an aad URNA ERROR RR ERR PY 9 2 22 10 Performance Verification 11 aeciaii 11 Equipment Needed iet teni 11 Performance i eee rt Rena et Sen ARE REPRE e EE AR MER SER na ad a 11 Battery Charge epar aaa eet aiat dg 12 Power Up Performance sss nennen 12 Operational Setup 2er td eee ed en netu no Ruth 17 General Operation 24 Pulse Oximetry Functional Tests 26 Sale TOSS MEER 33 Power On Settings and Service Functions 35 INtHOGUCHION E 35 Power On 35 Factory Default Settings 222000 35 Neonate Default Settings 35 Adult Default Settings eiie tenir 37 Service Functions 37 Accessing the Service Functions ssss 38 Exit Softkey AAE EEE A AA E 39
60. REND 03 5 2 BPM PA Status 13 FEB 02 7 13 02 99 132 220 PH 13 FEB 02 7 13 07 99 132 220 PH 13 FEB 02 7 13 12 99 132 220 PH 13 FEB 02 7 13 17 99 132 220 PH 13 FEB 02 7 13 22 99 132 220 PH 13 FEB 02 7 13 27 99 132 220 PH 13 FEB 02 7 13 32 99 132 220 PH Output Complete INFO Softkey This softkey is for Nellcor s Customer Service Engineering Only INFO Pressing the INFO softkey produces a single line printout of instrument CH information as illustrated below The data presented in the printout going from left to right is the instrument type N 595 software version level type of printout INFO CRC Cyclic Redundancy Check number and ratio of current operating time to total operating time the ratio itself has no units of measure N 595 Version XXXXXX INFO CRC XXXX SEC 123456789 987654321 44 Power On Settings and Service Functions Next Softkey Menu NEXT Additional options can be accessed from the main Service Functions menu by pressing the NEXT softkey When NEXT is pressed the softkeys change to the functions shown below NELLCOR N 595 DOWNLD Softkey DOWNLD When the DOWNLD softkey is selected the instrument will display the revision of the Boot Code exit DOWNLD cycle power to the instrument by pressing the ON STANDBY button Consult the Directions for Use DFU provided with any downloads or upgrades to the FLASH firmware When downloading new software v
61. Screen will remain in the appropriate state until the next menu selection is made GRAPH Graph Menu display events 1 N in inverse chronological order up down also scroll through events in order lt show previous graph only available when there is a previous graph c gt show next graph only available when there is a next graph PRINT c BACK back to Sensor menu TABLE Table Menu show previous table only available when there is a previous graph bottom top line repeats in new table v show next table only available when there is a next graph bottom top line repeats in new table PRINT BACK back to Sensor menu EXIT to Main menu Sens ril oop Menu If continuous Loop data is in the sensor the following will be displayed VIEW Sensor Trend View Menu DUAL shows SPO2 BPM SPO2 PULSE ZOOM cycle through 2h 1h 30m and 15m for current view PRINT BACK to Trend menu EXIT to Main menu SETUP Setup Monitor Menu VIEW Setup View Menu PLETH BLIP BACK back to Setup menu EXIT to Main menu SENSOR Setup Sensor Menu 595 Introduction DATA On screen options for SENSOR R Write once Sensor sensor are SPO2 SPO2 BPM DEFAULT On screen options for SENSOR RW rewritable sensor are 5 2 SPO2 BPM DEFAULT SELECT toggles SENSOR R or SENSOR RW se
62. T NEXT T M Note The service function is only accessible from the main menu display The menu bar will change to the headings listed below Note Ifthe above step is performed with a pulse oximetry cable connected only the PARAM and EXIT softkeys appear on the screen The following list can be used as a quick reference showing how to reach different softkey functions Items reached through the PARAM softkey can be accessed during normal operation Functions provided by the PRINT and NEXT softkeys cannot be accessed when a pulse oximetry cable is connected to the instrument Each of the various functions is described in the text that follows PARAM Service Menu RESET RESET DEFAULTS XES resets parameters to factory defaults sounds three tones to indicate that defaults have reset NO back to Service menu SAVE SAVE DEFAULTS YES saves parameters as default settings sounds three tones to indicate that defaults have been saved NO back to Service menu SENSOR enables disables sensor trend writing on rewritable sensors BACK back to Service menu Exit Softkey EXIT Next Softkey N 595 NEXT Power On Settings and Service Functions EXIT back to Main menu sounds three tones to indicate that defaults have reset BACK back to Service menu PRINT TREND ERRLOG INSTAT INFO NEXT DOWNLD for downloading monitor
63. ace Protocol Communication With a PC Data can be sent from the N 595 to a PC by using a data cable with a Null modem connector installed between the instrument and the PC Select the ASCII Comm protocol see Communication Protocol on page 107 Data sent to the PC is serial 8 data bits no parity 1 stop bit XON XOFF flow control and is space delineated When the connection is made real time data will be sent to the PC A new line of data will be sent every 2 seconds The information presented will be the same as described in Real Time Printouts later in this section Holding the Control key on the PC keyboard and pressing twice can access an interactive mode When the interactive mode has been accessed real time serial output is stopped and serial input is accepted Printouts can be requested or the date and time can be adjusted via the PC The PC monitor will display 5 options 1 Dump Instrument Info 2 Set Date and Time 3 Dump Trend 4 Dump Error Log 5 Exit Interactive Mode Dump Instrument Info Option 1 Set Date and Time N 595 This allows Instrument Info to be printed or displayed on the PC screen This option is intended for Nellcor s field service personnel Instrument Info is a single line of data which includes software version CRC number and total operating time Option 2 When the instrument is shipped from the factory the date and time are set to the time zone by the manufacturer If th
64. acing it in the regular trash Dispose of the battery in accordance with local guidelines or return it to Nellcor s Technical Services for disposal N 595 67 Disassembly Guide Replacement Connect the leads to the battery The red wire connects to the positive terminal and the black wire connects to the negative terminal Insert the new battery into the bottom case with the negative terminal towards the outside of the monitor Install the bracket and grounding lead with the two screws Complete the procedure in paragraph Monitor Assembly on page 66 Turn the monitor on and verify proper operation Power Entry Module PEM Removal Replacement Removal 68 Follow the procedure in paragraphs Prior to Disassembly on page 64 and Monitor Disassembly on page 65 Push the top of the Power Entry Module PEM in from the outside of the case and lift up Disassembly Guide 3 Use needle nose pliers to disconnect the leads from the PEM see Figure 8 Figure 8 Power Entry Module Replacement 4 Reconnect the three power supply leads as indicated in Table 11 on page 71 5 Install the PEM in the bottom case with the fuse drawer facing down A tab in the bottom case holds the PEM in place Insert the bottom wing of the PEM between the tab and the internal edge of the sidewall of the bottom case Push the PEM down and towards the outside of the monitor until it clicks into place 6 Complete the procedur
65. arge precautions when components of the N 595 4 Separate the monitor s top case from the bottom case of the monitor being careful not to stress the wire harnesses between the cases Place the two halves of the monitor on the table as shown in Figure 6 5 Disconnect the monitor s Power Supply harness from J16 on the User Interface PCB N 595 65 Disassembly Guide Figure 6 Separating Case Halves Monitor Assembly 1 Connect the monitor s Power Supply to J16 on the User Interface PCB 2 Place the monitor s top case over the bottom case being careful to align the Display PCB Power Entry Module and the fan with the slots in the case halves Caution When reassembling the N 595 tighten the screws that hold the cases together to a maximum of 10 inch pounds Over tightening could strip out the screw holes in the top case rendering it unusable 3 Install the four corner screws 66 Disassembly Guide Battery Replacement Removal 1 Follow the procedure in paragraphs Prior to Disassembly on page 64 and Monitor Disassembly on page 65 2 Remove the two screws from the battery bracket and lift the battery out of the bottom case as shown in Figure 7 3 Be sure to note the polarity of the leads Use needle nose pliers to disconnect the leads from the battery Figure 7 Removing the Battery 4 The lead acid battery is recyclable Do not dispose of the battery by pl
66. arm has been set to Off or silenced the Nurse Call function is also turned off Pin 11 on the data port 1s the RS 232 Nurse Call signal and pin 5 is ground Table 20 When there is no audible alarm the voltage between pins 10 and 11 will be 5 VDC to 12 VDC or 5V DC to 12 VDC depending on the option chosen via the softkeys either NORM or NORM Whenever there is an audible alarm the output between pins 5 and 11 will reverse polarity An internal Nurse Call relay pins 7 8 and 15 provides dry contacts that can be used to signal a remote alarm Pin 15 is common pin 7 is normally open N O and pin 8 is normally closed N C Table 20 shows the state of the contacts for 122 Analog Output N 595 Data Port Interface Protocol alarm and no alarm conditions and for instrument off Table 21 defines the ratings of the Nurse Call relay Table 20 Nurse Call Relay Pin States Audible Instrument Pin Alarm Alarm Off Silenced 7 N O Open Closed Closed 8 N C Closed Open Open Table 21 Rating of Nurse Call Relay Maximum Input 30 VA or DC polarity is not important Voltage Load Current 120 mA continuous peak 300 mA ag 100 ms Minimum Resistance 26 5 ohms to 50 5 ohms 40 5 ohms typical during alarms Ground Reference Isolated Ground Electrical Isolation 1500 Volts Analog outputs are provided for Saturation Pulse Rate and a plethysmographic waveform
67. as not completed successfully for example Institutional Defaults could not be reset 524 An unexpected value was received for example an out of range parameter was passed to a function 525 EEPROM CRC failure 526 SpO2 module not responded 527 Institutional parameters lost e g for UIF Institutional EEPROM section CRC corrupt 528 Current settings lost e g for UIF Institutional EEPROM section CRC corrupt 529 Critical low battery 530 Low battery error 531 External watchdog failure 532 Power PC watchdog failure 533 Boot NVROM uninitialized error 534 Failed CRC check of application code in flash 535 Failed periodic ram CRC check on application code running in RAM 562 SpO2 front end reset 563 SpOz2 reported error 564 Clinical mode was exited after input was received 565 Communication failures between software modules 566 Excessive resets before UIF runs 567 An unexpected interrupt has been asserted 568 General failure in UIF module generic post 569 BOOT application program is corrupt CRC does not match 570 RTC was restarted 574 Excessive restarts within 1 minute In addition to the error codes listed in Table 10 on page 58 the following messages may be encountered Troubleshooting Adjust Contrast Up Down When the user attempts to adjust the contrast of the display by pressing or pressing and holding the CONTRAST button Clock Settings Lost If the N 595 detects that the real time clock has stoppe
68. cator low level modulation Test 2 SpO2 1 Press the SRC MAX SpOz2 select button The SRC MAX SpO2 90 LED will light 2 The monitor will display three dashes until the SRC MAX stabilizes at 90 SpO2 The test pass criteria is 88 to 92 2 inclusive N 595 29 Performance Verification 3 The monitor will display e 90 5 2 pass criteria is 88 to 92 SpO2 inclusive 60 BPM no alarm e pulse amplitude indicator low level modulation NELLCOR c SP02 JEFE RE BPM 4 Press the SRC MAX 5 2 select button The SRC MAX SpO2 75 LED will light 5 The monitor will display three dashes until the SRC MAX stabilizes at 75 5 2 The test pass criteria is 73 to 77 2 inclusive 6 The monitor will display 75 SpOz2 pass criteria is 73 to 77 VoSpO2 inclusive e 60 BPM alarm e pulse amplitude indicator low level modulation Test 3 Modulation Level 1 Press the SRC MAX Modulation selection button The SRC MAX Modulation LED will light 30 Performance Verification 2 The monitor pulse amplitude waveform will initially increase in amplitude and then stabilize NELLCOR 96SP02 mmm BPM il 3 The monitor will display e 75 5 2 test pass criteria is 73 to 77 SpO2 inclusive e 60 BPM test pass criteria is 57 to 63 BPM inclusive alarm e pulse amplitude indicator high level modulation 4 Perform Test 1 BPM
69. col sss emm 107 Language Selection eter det deed arderet adden 108 Nurse Call Setup nennen 109 Analog Calibration 110 Agilent HP Communications 2 111 SpaceLabs Communications 111 Marquette Communications 2 112 Datex Ohmeda Communications sse 113 Connecting to the Data 113 Communication With a 0 115 Dump Instrument Info Option 1 115 Set Date and Time Option 2 em 115 Dump Trend Option 3 116 Dump Error Log Option 4 ciii 116 Exit Interactive Mode Option 5 116 Using Data on ihe 116 Real Time 117 Column Heading 118 Patient Data and Operating Status 119 Trend Data Printout ASCII enne 121 Trend Printout Graph eene nnns 121 N rse M 122 Analog 123 Technical DISCUSSION ox ae ne qdidquud Eu qud d IR PE TEX dx 125 ONE AS MI A pede dees 125 Functional versus Fractional Saturation 125 M
70. corrected for the effects of variables that shift the relationship between PO2 and pH temperature the partial pressure of carbon dioxide 2 3 DPG and fetal hemoglobin See Figure 21 1 pH 100 Temperature PCO2 2 2 3 DPG zt 1 Fetal Hb c pH 50 t Temperature t PCO2 5 t 2 3 DPG o 50 100 mmHg Figure 21 Oxyhemoglobin Dissociation Curve SatSeconds Alarm Management 126 The N 595 utilizes Nellcor SatSeconds alarm management technique SatSeconds is a function of the software within the N 595 With the SatSeconds technique upper and lower alarm limits are set in the same way as traditional alarm management The clinician also sets a SatSeconds limit that allows monitoring of SpO2 below the selected lower alarm limit for a period of time before an audible alarm sounds Refer to the N 595 Operator s manual for managing SatSeconds Technical Discussion Reads Through Motion The N 595 takes advantage of increased micro processing power with advanced mathematical algorithms Oxismart XL advanced signal processing allows the N 595 to read through challenging motion conditions to deliver accurate saturation and pulse rate values For a definition of motion as applicable to the N 595 contact Nellcor s Technical Services Department OxiMax Technology The N 595 pulse oximeter is designed to use Nellcor brand OxiMAx sensors containing OxiMAx technology These O
71. ct DS 100 sensor to the DOC 10 cable and your finger Press the ON STANDBY button to turn the monitor on Press the SETUP softkey Press the VIEW softkey Press the PLETH softkey Verify that the SpO2 and BPM indicate your SpOz and pulse rate Press the LIMITS softkey Press the SELECT softkey to select SpO lower alarm limit Press the ADJUST UP button until the SpO2 lower alarm limit indicates 99 10 Press the SELECT softkey three times to select pulse rate lower alarm limit 11 Press the ADJUST UP button until the pulse rate lower alarm limit indicates 160 12 Verify the following monitor reactions Performance Verification The plethysmograph waveform tracks your pulse rate e The pulse tone is heard e Your SpO2 and pulse rate are flashing in the SpO2 and BPM displays e The audible alarm sounds indicating that both parameters have violated the alarm limits Cw 13 Press and hold the ALARM SILENCE button until the BPM display indicates SEC Continue to press the ALARM SILENCE button and press the ADJUST DOWN button until 60 is displayed in the SpOz display 14 Press the ALARM SILENCE button 15 With the monitor s alarm silenced verify the following alarm remains silenced for 60 seconds The ALARM SILENCE indicator lights e SpO2 and BPM displays continue to flash e The pulse tone is still audible The audible alarm returns in approximately 60
72. ctor for the Marquette Octanet M interface module cable Nellcor cable part number 902254 is recommended for this interface Corrupt data will be indicated by a Communications Error displayed on the Marquette monitor When the N 595 is in the Marquette mode of operation the interface baud rate is automatically set to 9 600 bits per second The GE Marquette monitor only sounds audible alarms for equipment interfaced through the Octanet M interface module Silencing the N 595 audible alarm has no effect on the GE Marquette monitor sounding an alarm Note The parameters setup for the Marquette bedside monitor interface may be saved as institutional default settings See Setting Institutional Defaults Sample on page 47 Use care when performing this procedure because all settings will be saved as institutional default settings Data Port Interface Protocol Datex Ohmeda Communications The Datex Ohmeda monitor AS 3 must be configured for communications with the Nellcor N 200 monitor in order to communicate with the N 595 monitor Refer to the AS 3 operator s manual for instructions on configuring the AS 3 monitor The N 595 sends SpO pulse rate and alarm status data to the Datex 53 monitor The RS 232 hardwire interface cable has a DB 15 connector for the N 595 and the applicable connector for the Datex monitor Nellcor cable part number 902255 is recommended for this interface Corrupt data will be indicated by a Comm
73. d indicate high level modulation Press the SRC MAX Light Level selection button The SRC MAX Light Level W LED will light The monitor pulse amplitude waveform will decrease in amplitude The monitor will display 75 SpO2 60BPM alarm owlevel modulation Perform Test 1 BPM on page 28 The pulse amplitue indicator should indicate low level modulation Perform Test 2 SpO2 on page 29 The pulse amplitue indicator should indicate low level modulation Disconnect all equipment and turn off the monitor The N 595 safety tests meet the standards of and are performed in accordance with IEC 60601 1 EN 60601 1 Amendment 1 Amendment 2 and UL 2601 1 for instruments classified as Class 1 and TYPE BF and ANSI AAMI Standard ESI Applicable tests for these standards are listed below Technicians must be familiar with the Standards applicable to the technicians institution and country Test equipment and its application must comply with the applicable standard Ground Integrity on page 101 for test value 33 Performance Verification 34 Note Earth Leakage Current on page 102 for test values Enclosure Leakage Current on page 102 for test values Patient Applied Risk Current on page 102 for test values Patient Applied Risk Current on page 102 for test values Patient Applied Risk Current and Patient Isolation Risk Current The leakage test lead from the test equipment must be connected to the N
74. d running This will usually occur when both battery and AC power are lost Data In OxiMAx Sensor When an OxiMAx sensor containing sensor event record data is connected to the N 595 Data Type SpO2 When a blank sensor is connected to a monitor with Data Type set to SpO Data Type Event SpO2 BPM When a blank sensor is connected to a monitor with Data Type set to SpO2 BPM Defaults Lost If the N 595 detects that the power on settings have been lost Delete Trend When the user attempts to delete trend data from memory by pressing the DELETE softkey Invalid Blip Vol When the user attempts to save current settings as power on defaults and the blip volume is 0 N 595 61 Troubleshooting Invalid Silence Duration Invalid SpO2 Limit Low Battery Reading Trends Reset Defaults Save Defaults An attempt has been made to set the alarm silence duration power on default to OFF The power on default cannot be set to OFF An attempt has been made to set either the upper or lower alarm limit power on default below 80 The power on default cannot be set below 80 When the instrument is on battery power and the battery becomes low The monitor is gathering trend information for display When the user attempts to reset to factory defaults by pressing the RESET softkey on the Parameters menu the monitor displays the options YES and NO When the user attempts to save th
75. e DII of Appendix D Equipotential lug symbol to indicate a potential equalization conductor IEC 60601 1 Symbol 9 of Table DI of Appendix D Attention symbol consult accompanying documentation IEC 60601 1 Symbols 14 of Table DI of Appendix D External case made with non conductive plastic IEC 60601 1 sub clause 16 a No holes in case top IEC 60601 1 sub clause 16 b 115 230 voltage selector switch IEC 60601 1 sub clause 16 f Rigid case IEC 60601 1 sub clause 21 a Case mechanically strong IEC 60601 1 sub clause 21 b Case handle IEC 60601 1 sub clause 21 c N 595 resistant to rough handling IEC 60601 1 sub clause 21 6 N 595 tip tilt test IEC 60601 1 sub clause 24 1 N 595 resistant to liquid ingress due to spills IEC 60601 1 sub clause 44 3 as modified by EN 865 clause 4 Environmental 60601 1 sub clause 44 5 Cleaning IEC 60601 1 sub clause 44 7 Case surface made of non toxic materials 60601 1 sub clause 48 Case resistant to heat and fire IEC 60601 1 sub clause 59 2 b 93 Specifications 94 Item Compliant With N 595 power entry module fuse holder IEC 60601 1 sub clause 59 3 N 595 exterior markings IEC 60601 1 sub clause 6 1 6 3 and 6 4 EN 865 clause 6 Front panel and case labeling IEC 60878 EN 980 ISO 7000 EN 60417 1 EN 60417 2 N 595 button spacing
76. e battery has been removed or disconnected the time clock will not reflect the actual date and time After battery power has been restored it will be necessary to reset the date and time When option 2 has been selected the date and time can be changed via the PC The format for date and time is DD MMM YY HH MM SS Move the cursor under the value to be changed and enter the new value 115 Data Port Interface Protocol Dump Trend Option 3 Selecting Dump Trend outputs current trend information Up to 48 hours of trend information can be viewed Information presented includes instrument type e software revision level printout type alarm limits date and time e VoSpO2 e pulse rate e pulse amplitude Dump Error Log Option 4 A list of all of the error codes in memory can be obtained by selecting option 4 The information that can be viewed includes instrument type software revision level printout type time of printout operating time of the recorded error error number task number address and count This option is intended for Nellcor s field service personnel Exit Interactive Mode Option 5 Selecting option 5 exits the interactive mode and returns the data port to normal operation Using Data on the PC 116 Data displayed on the PC screen can be captured for use in a word processing spreadsheet Open a terminal program such as Hyper Terminal Verify that the communications fo
77. e current settings as the power on defaults by pressing the SAVE softkey on the Parameters menu the monitor displays the options YES and NO Sensor Disconnected Settings Lost 62 The OxiMAx sensor has disconnected from the pulse oximetry cable the cable has disconnected from the monitor or the OxiMAx sensor cable wiring is defective Press the ALARM SILENCE button to silence the alarm Check the connections If this does not correct the problem replace the OxiMAx sensor and or cable Settings lost is displayed when the N 595 detects that the current settings have been lost Disassembly Guide Introduction The N 595 can be disassembled down to all major component parts including PCBs battery cables chassis enclosures The following tools are required small Phillips head screwdriver medium Phillips head screwdriver small blade screwdriver e needle nose pliers or 1 4 inch socket torque wrench 10 inch pounds 1 13 Newton meters WARNING Before attempting to open or disassemble the N 595 disconnect the power cord from the N 595 Caution Observe ESD electrostatic discharge precautions when working within the unit Note Some spare parts have a business reply card attached When you receive these spare parts please fill out and return the card Replacement Level Supported The replacement level supported for this product is to the printed circuit board PCB and major subassembly level
78. e in paragraph Monitor Assembly on page 66 N 595 69 Disassembly Guide Power Supply Removal Replacement Removal 1 Follow the procedure in paragraphs Prior to Disassembly on page 64 and Monitor Disassembly on page 65 2 Push the top of the Power Entry Module PEM in from the outside of the case and lift up 3 Use needle nose pliers to disconnect the leads from the PEM see Figure 8 4 Disconnect the fan wire harness from J1 on the Power Supply PCB see Figure 9 5 Use a 10 mm wrench to disconnect the Power Supply ground lead from the equipotential terminal see Figure 8 6 Remove the seven screws shown in Figure 9 70 Disassembly Guide 7 Lift the Power Supply out of the bottom case Replacement Figure 9 Power Supply 8 Reconnect the leads to the PEM following the instructions in Table 11 and Figure 8 Table 11 Power Supply Lead Connections Wire Color Label Connect To Green amp Yellow Equipotential Lug Brown Labeled L L on the Power Entry Module Blue Labeled N on the Power Entry Module Red Labeled Positive Battery Terminal Black Labeled Negative Battery Terminal 9 Place the Power Supply in the bottom case N 595 71 Disassembly Guide maximum of 4 inch pounds Over tightening could strip out the screw holes 0 Caution When installing the Power Supply tighten the seven screws to
79. easured versus Calculated Saturation 126 SatSeconds Alarm 126 Reads Through MONON uite ar tet P rn i d 127 OXIMAX Technology critt dete eot eee edet epe ett e ena 127 Block Diagram T heory z oet err ah aoc n e E P 128 N 595 iii Contents Figures N 595 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Contents IN 595 Frorit Panel 42 2 ront e c c ead oos itd ag 4 595 Rear Panel 2 eiit ibi die edt id 4 SRC MAX OXIMAX Oximetry Tester 26 Fuse Removal 64 oneri 65 Separating Case Halves 66 Removing the Battery sesenta 67 Power Entry Module ted titt teca 69 Power Supply eren nennen nennen 71 Cooling Fai ice cet emen ee eee E Reed 73 Display 75 User internace
80. ected but the signal quality of the data being received was too low for the monitor to interpret the data Patient data that is outside of an alarm limit is marked with an asterisk At the end of the printout Output Complete will be printed This indicates that there was no corruption of data If the Output Complete statement is not printed at the end of the printout the data must be considered invalid ERRLOG Softkey This softkey 15 for Nellcor s Customer Service Engineering Only ERRLOG list of all the errors recorded in memory can be obtained by pressing the ERRLOG softkey The first line lists the type of instrument producing the printout software level type of printout and the time of the printout The second 42 INSTAT Softkey N 595 DELETE Power On Settings and Service Functions line of the printout consists of column headings If nothing prints out there have been no errors An example of an Errlog printout is shown below N 595 VERSION X X X X Error Log Time 14600 00 07 Time Error Task Module File Line Count 10713 21 03 269 6 1 764 1 00634 26 01 17 6 1 714 178 Output Complete This softkey is for Nellcor s Customer Service Engineering Only The DELETE softkey described in the operator s manual allows the user to delete the most recent trend data The current trend data along with the deleted trends can be retrieved from the instrument through an Instat printout The oldest deleted t
81. ent is monitoring normally General Operation The following tests are an overall performance check of the system LED Excitation Test on page 24 Operation with a Live Subject on page 25 LED Excitation Test This procedure uses normal system components to test circuit operation A Nellcor OxiMAx oxygen sensor model MAX A is used to examine LED intensity control The red LED 15 used to verify intensity modulation caused by the LED intensity control circuit 5 02 1 00 BPM e 10 e Sensor Port 1 Connect the monitor to an AC power source 2 Connect a DOC 10 pulse oximetry cable to the monitor sensor port 3 Connect a MAX A Oxri Max sensor to the sensor input cable 4 Press the ON STANDBY button to turn the monitor on 5 Leave the Oxi Max sensor open with the LEDs and photo detector visible 24 Performance Verification After the monitor completes its normal power up sequence verify that the Oxi Max sensor LED is brightly lit Slowly move the Oxi Max sensor LED in proximity to the photo detector element of the sensor close the Oxi Max sensor slowly Verify as the LED approaches the optical OxiMAx sensor that the LED intensity decreases Open the sensor and notice that the LED intensity increases Repeat step 7 and the intensity will again decrease This variation is an indication that the microprocessor is in proper control of LED i
82. ent monitor The Agilent monitor requires an Agilent VueLink Aux Plus B interface module A05 option to interface with the N 595 pulse oximeter The RS 232 hardwire interface cable has a DB 15 connector for the N 595 and the applicable connector for the Agilent monitor Nellcor cable part number 902256 is recommended for this interface A blank screen on the Agilent monitor will indicate corrupt data The Agilent monitor will detect corrupt data in less than 100 milliseconds When the N 595 is in the Agilent mode of operation the interface baud rate is automatically set to 19 200 bits per second WARNING Do not silence the N 595 audible alarm or decrease its volume if patient safety could be compromised The Agilent monitor only displays visual alarm indications for equipment interfaced through the Agilent VueLink Aux Plus B interface module The N 595 monitor must be able to sound an audible alarm in order to maintain patient safety Note The parameters setup for the Agilent bedside monitor interface may be saved as institutional default settings See Setting Institutional Defaults Sample on page 47 Use care when performing this procedure because all settings will be saved as institutional default settings SpaceLabs Communications N 595 The N 595 sends SpOz pulse rate and alarm status data to the SpaceLabs monitor IM The SpaceLabs monitor requires a Universal FlexPort interface module to interface w
83. enu VIEW Monitor Trend View Menu DUAL SPO2 PULSE NEXT History Amplitude Menu c HIST Delete Print2 Menu DELETE delete Trends DELETE TRENDS o 0 YES return to Main menu NO back to Delete Print menu PRINT BACT back to Hist Amp menu JE EXIT to Main menu 7 c AMP Amplitude Menu back to Hist Amp menu 00 EXIT to Main menu JE BACK back to Monitor Trend View menu EXIT to Main menu Introduction ZOOM Monitor Trend Zoom Menu TIME for current view cycle through 48h 36h 12h 8h 4h 2h 1h 30m 15m 40s 20s SCALE for current view cycle through 5 10 15 20 25 30 35 40 and 50 of the max and min values under the cursor default to 10 to 100 if there is no data point under the cursor AUTO based on all of the graphed trend data maximum value rounded up to nearest multiple of 10 minimum value rounded down to nearest multiple of 10 minus 10 c BACK back to Monitor menu NEXT Delete Printt Menu DELETE DELETE TRENDS to Main menu back to Delete Print menu PRINT c BACK back to Monitor menu EXIT to Main menu BACK back to Trend menu SENSOR Sensor Event Menu if Event data is in the sensor the following menu the
84. eplaced at least every 2 years See Battery Replacement on page 67 The following checks should be performed at least every 24 months by a qualified service technician 1 Inspect the equipment for mechanical and functional damage 2 Inspect safety labels for legibility If the labels are damaged contact Nellcor s Technical Services Department 1 800 635 5267 or your local Nellcor representative Functional Checks If the monitor has been visibly damaged or subjected to mechanical shock for example if dropped immediately perform the performance tests See Performance Tests on page 11 N 595 9 Routine Maintenance Battery 10 The following checks should be performed at least every 2 years by a qualified service technician 1 Perform the electrical safety tests detailed in Safety Tests on page 33 If the unit fails these electrical safety tests refer to Troubleshooting on page 51 2 Inspect the fuses for proper value and rating amp F2 0 5 amp 250 volts Nellcor recommends replacing the instrument s battery every 2 years When the N 595 15 going to be stored for 3 months or more remove the battery prior to storage To replace or remove the battery refer to Disassembly Guide on page 63 If the N 595 has been stored for more than 30 days charge the battery as described in Battery Charge on page 12 A fully discharged battery requires 14 hours with the monitor turned off or 18 hours if it is in use
85. er supply and connect a DVM to them The voltage measured should be 6 8 VDC 0 15 VDC and the current should be 400 mA 80 mA Replace power supply if above values are not met Buttons Table 6 lists symptoms of problems relating to non responsive buttons and recommended actions If the action requires replacement of a PCB refer to Disassembly Guide on page 63 Symptom Table 6 Button Problems Recommended Action The N 595 turns on but does not respond to some or all of the buttons Replace the User Interface PCB See User Interface PCB Removal Replacement on page 76 Ifthe buttons still do not work replace the Top case assembly See Top Case Assembly Removal Replacement on page 80 54 Display Alarms Troubleshooting Table 7 lists symptoms of problems relating to non functioning displays and audible tones or alarms and recommended actions If the action requires replacement of a PCB or module refer to Disassembly Guide on page 63 Table 7 Display Alarms Problems Symptom Recommended Action Display values are missing or erratic Ifthe OXIMAX sensor is connected replace the pulse oximetry cable Ifthe condition persists replace the OXIMAX sensor e If the condition still persists replace the User Interface printed circuit board See User Interface PCB Removal Replacement on page 76 Display pixels do not light Check the connection between the
86. esented in the chart from left to right is the time that the line was obtained the current SpOz value being measured the current Pulse Rate in beats per minute BPM the current Pulse Amplitude PA and the operating status of the N 595 Patient Data and Operating Status Time TIME SpO2 BPM Status 12 NOV 00 14 00 05 100 190 50 The Time column represents the N 595 real time clock N 595 119 Data Port Interface Protocol Patient Data N 595 VERSION CRC XXXX SpO2 Limit 70 100 PR Limit 60 160BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM Status 13 FEB 02 14 00 05 100 190 50 Patient data and the operating status of the unit are highlighted in the display above Parameter values at the time of the printout are displayed directly beneath the heading for each parameter In this example the SpO2z is 100 and the pulse rate BPM is 190 beats per minute The asterisk next to the 190 indicates that 190 beats per minute is outside of the alarm limits indicated in the top row for pulse rate If no data for a parameter is available three dashes will be displayed in the printout Pulse Amplitude PA can range from 0 to 254 There are no alarm parameters for this value It can be used for trending information and is an indication of a change in pulse volume pulse strength or circulation Operating Status N 595 VERSION X X X X CRC XXXX SpO2 Limit 70 100 PR Limit 60 160B
87. face e Serial port communication through the SIP SOP interface Nurse call outputs e Analog outputs Sound generation by generating the appropriate volume and frequency control settings for the speaker circuitry e Monitoring and controlling pulse oximeter power e Communicating with the real time clock RTC e Communicating with the electrically erasable programmable read only memory EEPROM Trend data collection and storage Static random access memory RAM and FLASH read only memory ROM are provided for the microprocessor on the PCB Two systems pulse oximeter integrated circuits ICs on the main PCB 5 volts and 3 3 volts power supply and provide watchdog timer The system monitor will reset the entire PCB if the 5 volts is out of tolerance or the watchdog timer is not periodically reset by the software The FE 102 front end also contains a Static RAM FLASH ROM and a system monitor The FE 102 front end s system monitor will reset just the FE 102 front end if the 5 volt VCCA is out of tolerance or the watchdog timer is not periodically reset by the software Power is supplied to the N 595 either from an AC connection 110 or 220 VAC or from a 6 volt 4 ampere hour battery The transition between power sources is invisible to the user from AC power to battery power or from battery power to AC power This allows functionality to remain during cases where AC power is lost or applied The microprocessor mo
88. h no audible alarm 8 Normally Closed N C Dry Contacts for Nurse Call N C with no audible alarm 9 RXD R 422 negative output 10 Signal Ground isolated from earth ground 11 Nurse Call RS 232 level output 5 to 12 VDC with no audible alarm 5 to 12 VDC with audible alarm 12 TXD RS 422 negative output 13 AN Pulse analog pulse rate 14 AN Pleth analog pleth waveform output 15 Nurse Call Common for Dry Contacts Note When the instrument is turned off the contact at pin 7 becomes closed and the contact at pin 8 becomes open The pin layout is illustrated in Figure 16 is viewed from the back of the monitor An AMP connector is used to connect to the data port Use AMP connector AMP P N 747538 1 ferrule AMP P N 1 747579 2 and compatible pins AMP P N 66570 2 9 10 11 12 13 14 15 12 34 56 7 8 Figure 16 Data Port Pin Layout When building an RS 422 cable a resistor 120 ohms 1 2 watt 5 must be added between pins 1 and 9 of the cable The end of the cable with the resistor added must be plugged into the N 595 This resistor 1s not necessary for RS 232 cables The data cable must be shielded example Belden P N 9616 Connectors at both ends of the data cable must have the shield terminated to the full 360 degrees of the connector s metal shell If rough handling or sharp bends in the cable is anticipated use a braided shield 114 Data Port Interf
89. hazard Do not use the N 595 pulse oximeter in the presence of flammable anesthetics WARNING Do not spray pour or spill any liquid on the N 595 its accessories connectors switches or openings in the chassis WARNING Before attempting to open or disassemble the N 595 disconnect the power cord from the N 595 WARNING The LCD panel contains toxic chemicals Do not ingest chemicals from a broken LCD panel Introduction A Cautions 9999 WARNING The use of accessories Oxi Max sensors and cables other than those specified may result in increased emission and or decreased immunity of the N 595 pulse oximeter WARNING Do not silence the N 595 audible alarm or decrease its volume if patient safety could be compromised Cautions are identified by the CAUTION symbol shown above Cautions alert the user to exercise care necessary for the safe and effective use of the N 595 pulse oximeter Caution Observe ESD electrostatic discharge precautions when working within the unit Caution Observe ESD electrostatic discharge precautions when disassembling and reassembling the N 595 and when handling any of the components of the N 595 Caution When reassembling the N 595 tighten the screws that hold the cases together to a maximum of 10 inch pounds Over tightening could strip out the screw holes in the top case rendering it unusable Caution When installing the Power Supply or the User Interface PCB
90. how to troubleshoot the N 595 if problems arise Tables list possible monitor difficulties along with probable causes and recommended actions to correct the difficulty How To Use This Section Use this section in conjunction with Performance Verification on page 11 and Spare Parts on page 81 To remove and replace a part you suspect is defective follow the instructions in Disassembly Guide on page 63 The circuit analysis section in the Technical Discussion on page 125 offers information on how the monitor functions Who Should Perform Repairs Only qualified service personnel should open the monitor housing remove and replace components or make adjustments If your medical facility does not have qualified service personnel contact Nellcor s Technical Services or your local Nellcor representative Troubleshooting Guide Problems with the N 595 are categorized in Table 4 Refer to the paragraph indicated for further troubleshooting instructions Note Taking the recommended actions discussed in this section will correct the majority of problems you may encounter However problems not covered here can be resolved by calling Nellcor s Technical Services or your local Nellcor representative N 595 51 Troubleshooting Table 4 Problem Categories Problem Area Refer To 1 Power Power on page 53 No power up on AC and or DC e Fails power on self test Powers down without apparent cause 2 Buttons Button
91. ia the data port the baud rate is set at 19 200 ALARMS Softkey ALARMS Pressing the ALARMS softkey can change characteristics of the audible alarm es When the ALARMS softkey is pressed the softkey s functions change as shown below NELLCOR ALARMS ALLOW OFF OFF REMINDER YES SELECT Softkey SELECT The SELECT softkey is used to select what function of the audible alarm is going to be changed box can be cycled between two choices ALLOW OFF and OFF REMINDER N 595 45 Power On Settings and Service Functions 46 LIGHT GS NEXT Note Use the following procedure to select and set the monitor s ALLOW OFF and OFF REMINDER Disconnect the OxiMAx sensor from the monitor monitor s screen will be PARAM and EXIT 2 Simultaneously press the LIGHT softkey and the CONTRAST softkey until the menu bar changes to the softkey headings shown below If the OxiMAx sensor is not disconnected the only softkeys on the NELLCOR N 595 son 9 PARAM PRINT 0 T 3 Press the NEXT softkey NELLCOR N 595 0 ALARMS 4 Press the ALARMS softkey SELECT 5 Usethe SELECT softkey to toggle between ALLOW OFF and OFF NELLCOR N 595 ALARMS ALLOW OFF OFF REMINDER REMINDER 00 Power On Settings and Service Functions 6 Use the ADJUST UP or ADJUST
92. ighten the five screw holes in the top case rendering it unusable 3 Complete the procedural steps 8 through 14 in paragraph User Interface PCB Removal Replacement on page 76 80 Spare Parts Introduction The latest version of this manual is available on the Internet at http www mallinckrodt com respiratory resp Serv_Supp ProductManuals html Spare parts are shown in Table 12 Item numbers correspond to the callout numbers in Figure 14 Obtaining Replacement Parts Nellcor s Technical Services provides technical assistance information and replacement parts To obtain replacement parts contact Nellcor or your local Nellcor representative Refer to parts by the part names and part numbers Spare parts and accessories for the N 595 are listed on the Internet at http mallinckrodt com respiratory resp Serv_Supp Apartweb main PartAcceMenu html N 595 81 Spare Parts Parts List 82 Table 12 Parts List Item Description Part Number 1 Top Case Assembly International with 036652 Membrane Panel 1 Top Case Assembly U S A with Membrane 036657 Panel 2 Fuse Drawer 691500 3 Fuses 691032 4 Power Entry Module 691499 5 Cooling Fan 035469 6 Power Supply SP036603 UT036603 7 Display PCB SP902251 8 Battery 640119 9 Battery Bracket 035307 10 User Interface PCB SP062315 UT062315 Alarm Speaker not shown 036605 Rubber Feet not shown 4 003818 00 Power Cord U S
93. imit for SpO2 will indicate an alarm limit of 100 or institutional default setting inside a box N NELLCOR N 595 e iia rns spm 75 02 100 ma LOWER 110 C22 e SELECT NEO ADULT ep mq O0 OD e P 3 Press and hold the ADJUST DOWN button Verify that the boxed number for SpO2 upper alarm limit reduces to a minimum of 86 Note decimal point in the display indicates that the alarm limits have been changed from factory default values SELECT 4 Press the SELECT softkey Verify that the monitor emits a single beep and the box moves to the 8 gt lower alarm limit of 85 or your institutional default setting NELLCOR N 595 e OUTIS ny SP 100 e t4 UPPER 170 m LOWER 85 40 2 SAT S OFF 110 e m SELECT NEO ADULT CP 09 O CD Cw 5 Press and hold the ADJUST DOWN button and verify that the SpO2 lower alarm limit display reduces to a minimum of 20 Performance Verification 6 Press and hold the ADJUST UP button and verify that the SpO2 lower alarm limit display cannot be raised past the upper alarm limit setting of 85 Press the EXIT softkey m 2 lt 6 0 LIMITS 8 Press the LIMITS softkey SELECT 9 Press the SELECT softkey three times Verify that the monitor emits a beep after each keystroke The Pulse upper alarm limit should be 170 and should
94. inciples of operation and circuit analysis sections of this manual you must know how to operate the monitor Refer to the N 595 operator s manual To understand the various Nellcor approved sensors that work with the monitor refer to the individual sensor s directions for use The latest version of the operator s manual and the service manual are posted on the Internet at http www mallinckrodt com respiratory resp Serv Supp ProductManuals html Spare Parts and Accessories are posted on the Internet at http www mallinckrodt com respiratory resp Serv Supp Apartweb main PartAcceMenu html Routine Maintenance Cleaning WARNING Do not spray pour or spill any liquid on the N 595 its accessories connectors switches or openings in the chassis For surface cleaning and disinfecting follow your institution s procedures or The N 595 may be surface cleaned by using a soft cloth dampened with either a commercial nonabrasive cleaner or a solution of 70 alcohol in water and lightly wiping the surfaces of the monitor N 595 may be disinfected using a soft cloth saturated with a 10 solution of chlorine bleach in tap water Before attempting to clean an SpO2 Oxi Max sensor read the directions for use enclosed with the Oxir MAx sensor Each sensor model has cleaning instructions specific to that sensor Periodic Safety Checks The N 595 requires no calibration The battery should be r
95. increase the alarm volume setting to a maximum value of 10 Verify that the volume increases Cw 4 Continue pressing the ALARM SILENCE button and press the ADJUST DOWN button until a comfortable audio level is attained 5 Release the ALARM SILENCE button The tone will stop Pulse Tone Volume Control After completing Alarm Volume Control on page 20 perform the following procedure C 1 Press the ADJUST UP button and verify that sound level of the beeping pulse tone volume increases Cw 2 Press the ADJUST DOWN button and verify that the sound level of the beeping pulse tone volume decreases until it is no longer audible C 3 Press the ADJUST UP button to return the beep volume to a comfortable level 20 Performance Verification 4 Remove the sensor from your finger Disconnect the DOC 10 monitor cable and the Oxi Max sensor Nurse Call 100 120 200 240 5050 Hz 20VA 5 1 Data Port Connector 9 10 11 12 13 14 15 1 Connect the negative lead of a voltmeter to pin 5 and positive lead to pin 11 of Tk 3 42455 8 the data port connector 1 on the back of the monitor Ensure that the audible alarm is not silenced or turned off 2 Connect the SRC MAX tester to the DOC 10 sensor cable 3 Connect the DOC 10 sensor cable to the monitor SpO connector 92 4 Turn on the monitor and wait for the monitor to complete POST Note The monitor should indicate a Sp
96. intout or display in this case the N 595 Software Revision Level N 595 VERSION X X X X CRC XXXX SpO2 Limit 70 100 PR Limit 60 160BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME 5 02 BPM Status The next data field tells the user the software level Version X X X X and a software verification number CRC XXXX Neither of these numbers should change during normal operation The numbers will change if the monitor is serviced and receives a software upgrade Alarm Limits N 595 VERSION CRC XXXX SpO2 Limit 70 100 PR Limit 60 160BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM Status The last data field in the top line indicates the upper and the lower alarm limits for SpO2 and for the pulse rate PR In the example above the lower alarm limit 118 Data Port Interface Protocol for SpO2 is 70 and the upper alarm limit is 100 Pulse Rate alarm limits are 60 BPM lower and 160 BPM upper Monitor Status N 595 VERSION CRC XXXX SpO2 Limit 70 100 PR Limit 60 160BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM Status The monitor status ADULT or NEO Neonate is displayed on the second line of the heading Column Headings N 595 VERSION CRC XXXX SpO2 Limit 70 100 PR Limit 60 160BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM PA Status Actual column headings are in the second row of the Column Heading Patient data pr
97. ith the N 595 pulse oximeter Corrupt data will be indicated by a Communications Error displayed on the SpaceLabs monitor 111 Data Port Interface Protocol A When the N 595 is in the SpaceLabs mode of operation the interface baud rate is automatically set to 9 600 bits per second WARNING Do not silence the N 595 audible alarm or decrease its volume if patient safety could be compromised The SpaceLabs monitor provides both audible and visual alarm indications for equipment interfaced through the Universal FlexPort interface module Silencing the N 595 alarms will also silence the SpaceLabs monitor alarms The monitors must be able to sound an audible alarm in order to maintain patient safety Note The parameters setup for the SpaceLabs bedside monitor interface may be saved as institutional default settings See Setting Institutional Defaults Sample on page 47 Use care when performing this procedure because all settings will be saved as institutional default settings Marquette Communications 112 The N 595 sends SpO pulse rate and alarm status data to the Marquette monitor The Marquette monitor requires an Octanet interface module to interface with the N 595 pulse oximeter The interface module comes with an interface cable GE Marquette part number 417961 033 that connects to the Nellcor interface cable The RS 232 hardwire interface cable has a DB 15 connector for the N 595 and the applicable conne
98. le blood volume and light absorption reach their lowest point The pulse oximeter bases its SpO2 measurements on the difference between maximum and minimum absorption 1 measurements at systole and diastole By doing so it focuses on light absorption by pulsatile arterial blood eliminating the effects of nonpulsatile absorbers such as tissue bone and venous blood Functional versus Fractional Saturation N 595 This pulse oximeter measures functional saturation oxygenated hemoglobin expressed as a percentage of the hemoglobin that can transport oxygen It does not detect significant amounts of dysfunctional hemoglobin such as 125 Technical Discussion carboxyhemoglobin or methemoglobin In contrast hemoximeters such as the 1482 report fractional saturation oxygenated hemoglobin expressed as percentage of all measured hemoglobin including measured dysfunctional hemoglobins To compare functional saturation measurements to those from an instrument that measures fractional saturation fractional measurements must be converted as follows fractional saturation functional saturation x 100 100 96 carboxyhemoglobin methemoglobin Measured versus Calculated Saturation When saturation is calculated from a blood gas partial pressure of oxygen PO2 the calculated value may differ from the SpO2 measurement of a pulse oximeter This usually occurs because the calculated saturation was not appropriately
99. magnetic Immunity Portable RF Equipment 98 Recommended Separation Distances 99 CADIS X 100 Data Port PIN OUIS et tate Lett er auda aiii Se Rada 113 Operating Status Codes 0 0000 0 120 Nurse Call Relay Pin States 123 Rating of Nurse Call Relay sese 123 Introduction Warnings N 595 gt gt Warnings are identified by the WARNING symbol shown above Warnings alert the user to potential serious outcomes death injury or adverse events to the patient or user WARNING The sensor extrapolates from the date and time provided by the N 595 when recording the sensor event record to the sensor The accuracy of the date time is the responsibility of the N 595 It is recommended that the N 595 user set the time date to the correct value before a sensor event record enabled sensor is connected and that this date time not be changed while the sensor remains connected Since a sensor with sensor event record data can be transported from one monitor to another having discrepancies in the date time between monitors and the sensor event record data will affect the order the sensor event record data appears To eliminate this possible problem all monitors within an institution should be set to the same time WARNING Explosion
100. n 95 dip in Ur for 5 sec for 5 sec Powerfrequency 3 A m 3 A m If image distortion occurs 50 60 Hz it may be necessary to magnetic field IEC 61000 4 8 position the N 595 further from the sources of power frequency magnetic fields or to install magnetic shielding The power frequency magnetic field should be measured in the intended installation location to assure that it is sufficiently low Note is the AC mains voltage prior to application of the test level 97 Specifications 98 Table 15 Electromagnetic Immunity Portable RF Equipment The N 595 is suitable for use in the specified electromagnetic environment The customer and or user of the N 595 should assure that it is used in an electromagnetic environment as described below Immunity Test IEC 60601 1 2 Test Level Compliance Level Electromagnetic Environment Guidance Portable and mobile RF communications equipment should be used no closer to any part of the N 595 including cables than the recommended separation distance calculated from the equation appropriate for the frequency of the transmitter Recommended Separation Distance Radiated RF 3 3 V m distance 1 2NPower IEC 61000 4 3 80 MHz 80 MHz to 800 MHz 800 MHz 3 V m 3 V m distance 2 3NPower 800 MHz 800 MHz to 2 5 GHz 2 5 GHz Conducted RF 3 Vrms 3 Vrms distance 1 2NPower IEC 61000 4 6 150 kHz to 150 kHz to 80
101. n PCB Schematic Diagram Sheet 13 of 13 155 Main PCB Assembly Drawing Front View 157 Main PCB Assembly Drawing Rear View 159 Linear Power Supply Schematic Diagram 161 Linear Power Supply Assembly Drawing 163 Contents Tables vi Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Equipment Needed 11 Neonate Alarm Limit Factory Defaults 35 Adult Alarm Factory Defaults 37 Problem Categories 52 Power Problems 3 d e XR YN Teu 53 Button Probl ms ite be tnit te en rn pe XAR eade 54 Display Alarms Problems seem 55 Operational Performance Problems 56 Data Port Problems 00 57 Error Codes 58 Power Supply Lead Connections 71 Parts EISE caian aaa HI ent a ier E dears 82 Electromagnetic Emissions 95 Electromagnetic Immunity 2 96 Electro
102. n while the N 595 is turned off R49 R72 4 75Kohm 4 75Kohm C105 100NF R29 1 1 C RELAY 023 MMBT3906 BATT CHECK Q5 MMBT3906 ls 5l FRONT END RST gm VFLSO angst 1 NOTE For cle They are con i 1 ty VODH and GN ected implicitly jns on the MP ret 33V and GN 15 DREQ1 PORESET MODCK MODCK2 DS 8 LIRXDA PA9 LITXDA PA12 TX02 PA13 RX02 VEZ aum B vF ape C9 vrl ATO 08 ATA ayu SEL SEROATA MMBT3904LTI DS1814C 8 ERCK 18 79 0 lt 00 gt RFE_TXD lt OD gt e N10 0 lt 0 gt E TX RTX485_EN lt 5110hm R116 MDOCLK1NSTS lt gt R38 MODCLK2
103. nal is available only if the instrument is operating on AC power For more information see Nurse Call on page 122 1 Turn on the N 595 by pressing the ON STANDBY button SETUP 2 Pressthe SETUP softkey NEXT 3 Press the NEXT softkey NEXT 4 Press the NEXT softkey 109 Data Port Interface Protocol 5 Press the NCALL softkey NCALL 5 02 NORM NORM BACK EXIT NORM gt 6 Press the 5 to 12 VDC or NORM 5 to 12 VDC softkey as NORM required for your nurse call system Analog Calibration Setup Analog calibration signals are provided to adjust a recorder to the output of the instrument Selectable calibration signals are 1 0 VDC 0 0 VDC and Step For more information on the analog signals see Analog Output on page 123 1 Turn on the N 595 by pressing the ON STANDBY button 2 Press the SETUP softkey 3 Press the NEXT softkey 4 Press the NEXT softkey 5 Press the NEXT softkey 6 Press the ANALOG softkey gt z z z o s 9 275 2 4 c a 9 oe 1VOLT STEP BACK 4VOLT STEP C C 7 Press the 0 VOLT 1 VOLT or STEP softkey as required 110 Data Port Interface Protocol 8 Press the BACK softkey Agilent HP Communications Note The N 595 does not support Norwegian Danish or Finnish languages in this communication mode The N 595 sends SpO2 pulse rate and alarm status data to the Agil
104. ndary Output Port SIP SOP The FE 102 front end User Interface UIF The SIP SOP and the FE 102 front end are both electrically isolated from the UIF The FE 102 is electrically isolated to reduce capacitive coupling to earth ground and improve the FE 102 s ability to read difficult patients The SIP SOP is isolated as mandated by regulations for patient safety The N 595 contains a microprocessor Motorola MPC823 Power PC and a microcontroller Microchip PIC17C756 The microprocessor provides the bulk of the functionality in the pulse oximeter acting as the master controller The microcontroller controls the FE 102 analog front end The two processors communicate by means of an asynchronous serial link between the two processors over an isolated barrier 595 Technical Discussion The microprocessor is responsible for interacting with the analog front end and communicates with the front end through control signals The microcontroller receives the analog voltages from the front end analog to digital A D converters The resultant data is used to calculate SpO2 and pulse rate values The results are transmitted to the microprocessor via the serial link The primary responsibilities of the microprocessor are Digital signal processing of the front end data e Display of the SpO2 and pulse rate data and all other display data including status light emitting diodes LEDs on the membrane panel e User inter
105. ndicator Figure 3 SRC MAX OxiMAx Oximetry Tester Introduction The SRC MAX functional tester allows qualified technicians to functionally test Nellcor technology based pulse oximeters and OEM OxiMAx technology based monitors The technician must perform the test setup procedure 26 Initial Setup N 595 Performance Verification before performing tests 1 through 4 The following is a brief description of each Test Setup This procedure establishes the baseline for all the other tests The Test Setup procedure must be performed before performing any or all of the SRC MAX tests Test 1 BPM This procedure simulates an OxiMAx sensor attached to a patient indicating 60 BPM and 200 BPM The test setup procedure sets up Test 1 for 60 BPM Test 2 SpO2 This procedure simulates an OxiMAx sensor attached to a patient indicating 75 percent blood oxygen saturation and 90 percent blood oxygen saturation The test setup procedure sets up Test 2 for 75 percent blood oxygen saturation Test 3 Modulation This procedure simulates an OxiMAx sensor attached to a patient indicating low and high pulse strength The test setup procedure sets up Test 3 for low pulse strength Test 4 Light This procedure simulates an OxiMAx sensor attached to a patient indicating low and high light level passing through the patient at the sensor site The test setup procedure sets up Test 4 for low light level SpO
106. nected to pin 10 and verify 1 0 4 0 025 VDC on pins 13 and 14 This verifies the monitor s BPM and Pleth function Performance Verification Note If step 8 takes more than 2 minutes to complete the analog output will o z z z o lt z m m m m gt x x x d d 4 c 4 12 13 14 time out Repeat steps 2 through 6 to initiate the analog output Move the positive lead back to pin 6 Press the SETUP softkey Press the NEXT softkey Press the NEXT softkey Press the NEXT softkey Press the ANALOG softkey Press the 0 VOLT softkey Verify that the monitor s output voltage is 0 0 0 025 VDC Leave the negative lead connected to pin 10 and verify 0 0 0 025 VDC on pins 13 and 14 Note If step 16 takes more than 2 minutes to complete the analog output will 19 Operation on Battery Power N 595 1 e Ha e FA 2 time out Repeat steps 10 through 14 to initiate the analog output Disconnect the voltmeter from the instrument Disconnect the instrument from AC power and verify that the AC POWER indicator turns off Verify that the monitor continues monitoring normally and that the LOW BATTERY indicator is not lit 23 Performance Verification Note Ifthe LOW BATTERY indicator is illuminated perform Battery Charge on page 12 F 3 Connect the monitor to AC power and verify that the AC POWER indicator turns on and that the instrum
107. nitors the battery voltage and shuts off the unit power supply if the battery voltage becomes too low to support N 595 129 Technical Discussion 130 functionality The FE 102 front end power supply for the N 595 is an isolated switcher which generates 5 volts and 12 volts The patient is connected to the N 595 via an OxiMAx sensor and pulse oximetry cable The SpO2 analog front end drives the sensor s LEDs conditions the incoming signal and provides adjustable gain status The microprocessor measures the OxiMAx sensor s analog outputs and continually controls the gain stages and LED drive current to ensure that the signals are within the measurement range The N 595 has a 240 x 64 liquid crystal display LCD which provides various display capabilities including numeric readouts for SpO2 and beats per minute BPM pulse rate graphical pleth wave and pulse blip bar menu selection elements and status error messages There is also a membrane panel consisting of nine buttons and five LED indicators The buttons allow the user to navigate through and input menu selections using the LCD and LED interfaces The LED indicators provide feedback to the user on various N 595 and OxiMAx sensor conditions The N 595 contains a speaker for audio output The static RAM and the RTC for the microprocessor are powered whenever the N 595 has power either AC power or battery power This allows time and certain data to be maintained eve
108. nsor type up down keys scroll through options in order The SENSOR R feature supports all of the current OxiMAx sensors SELECT BACK back to Setup Sensor menu EXIT to Main menu MSG Sensor Set Message Menu BACK back to Setup Sensor menu EXIT to Main menu NEXT Clock Language Menu CLOCK Clock Menu SET Clock Set Menu SELECT press select to toggle through hours minutes seconds month day year use up down buttons to set each selection BACK back to Clock Language menu EXIT to Main menu LANG Language Setup Menu use up down buttons to toggle though languages BACK back to Clock Language menu NEXT Communication Nurse Call Menu COMM Communication Port Configuration Menu SELECT BACK back to Communication Language menu EXIT to Main menu NCALL Nurse Call Menu NORM NORM BACK back to Communication Nurse Call menu EXIT to Main menu NEXT Analog Mode Menu ANALOG Analog Voltage Select Menu 0 VOLT 1VOLT STEP c BACK back to Analog Mode menu MODE Mode Menu c BACK back to Analog Mode menu c EXIT to Main menu BACK back to Communication Nurse Call menu EXIT to Main menu BACK back to Clock Language menu BACK back to Setup menu EXIT to Main menu LIGHT Turns the display backlight on or off Introduction Related Documents To perform test and troubleshooting procedures and to understand the pr
109. ntensity 10 Press the ON STANDBY button to turn the monitor off Operation with a Live Subject N 595 Patient monitoring involves connecting the OxiMAx sensor to a live subject for a qualitative test NELLCOR 1 Sensor Port Ensure that the monitor is connected to an AC power source Connect a DOC 10 pulse oximetry cable to the monitor sensor port Connect a Nellcor OxiMAx MAX A oxygen OxiMAx sensor to the pulse oximetry cable Clip the MAX A to the subject as recommended in the OxiMAx sensor s directions for use 25 Performance Verification 5 Press the ON STANDBY button to turn the monitor on and verify that the monitor is operating 6 The monitor should stabilize on the subject s physiological signal in about 15 to 30 seconds Verify that the oxygen saturation and pulse rate values are reasonable for the subject Pulse Oximetry Functional Tests These tests utilize the pulse oximetry functional tester Nellcor model SRC MAX to verify the performance of the N 595 monitor See Figure 3 All of these tests should be done in sequence 1 23 4 80 KO ne 10 9 8 7 6 5 1 DOC 10 Cable Connector Modulation Select Button 3 Not Used For N 595 Light Level Selection Button 6 2 RED LED Drive Indicator 7 SpO2 Select Button 8 9 4 Not Used For N 595 Pulse Rate Selection Button 5 Battery Low Indicator 10 INFRARED LED Drive I
110. or specific accuracy information for the N 595 with different Nellcor approved OxiMAx sensors The N 595 uses the information in the OxiMAx compatible sensor to tailor troubleshooting messages for the clinician sensor contains coding that tells the pulse oximeter what kind of OxiMAx sensor is being used When deciding what messages to display the pulse oximeter takes into account the OxiMAx sensor type and recommended patient site for that model The N 595 OxiMAx system therefore has an intelligent troubleshooting system N 595 127 Technical Discussion Block Diagram Theory The monitor block diagram is shown in Figure 22 SpO2 Sensor In 2 LED Drive FE 102 Front End Trend Data LCD Display Front End Reset Front End Display Interface Power Supply Interface Butons Interface SPI Bus Membrane interface Contrast Switch RAM Panel LED Memory Drive Drive Speaker Speaker Drive Linear Power Frequency Supply amp Volume Power PC Power Control MPC823 Battery gt Power Supply A Sync RS 232 RS 422 y Analog Outputs SIP RS 232 Data Nurse Call SOP Reset Watchdog Power On Reset 128 Figure 22 Block Diagram The N 595 main printed circuit board PCB consists of three main parts Secondary Input Port Seco
111. our supplier or local Nellcor office Technical Services Department for a returned goods authorization number Mark the shipping carton and any shipping documents with the returned goods authorization RGA number Return the N 595 by any method that provides proof of delivery Repacking in Original Carton If available use the original carton and packing materials See Figure 15 Pack the monitor as follows N 595 85 Packing for Shipment 1 Place the monitor and if necessary accessory items in original packaging Figure 15 Packing 2 Place in shipping carton and seal carton with packing tape 3 Label carton with shipping address return address and RGA number if applicable 86 Packing for Shipment Repacking in a Different Carton If the original carton is not available use the following procedure to pack the N 595 1 Place the monitor in a plastic bag 2 Locate a corrugated cardboard shipping carton with a bursting strength of at least 200 pounds per square inch psi 3 the bottom of the carton with at least 2 inches of packing material 4 Place the bagged unit on the layer of packing material and fill the box completely with packing material 5 Seal the carton with packing tape 6 Label the carton with the shipping address return address and RGA number if applicable N 595 87 Specifications Performance N 595 Measurement Range SpO2 1 to 100
112. p a 4 XREFB ENSE PTC REF_H L XREFB XREFA 11 ayu T MCTLHCOLAD TIT 014 GND2AGND VC 2 51230605 WRESET_L 818 Xs WARMSENSE 1 1 RG REF IN INA145UA larmer Power Supply and Control Figure 40 Main PCB Schematic Diagram Sheet 13 of 13 155 019 E U20 o mim za 5 Sesion Te AM j EE Ores RAMCE ju cies MI me iu ER mimi iim 5 czad III U33 020 m D45 rote 046 047 fale U36 at ii 5 1 I u38 a O o al mam T m L TEN Beas Ti 5 229 021 Wn O 20520 U59 405 a g aei amined Q 3L el apis Oues s R238 R235 m 16 ceo 024 mS C230 nii 049 U68 R249 R251 E m mis e E R255 mm e Ex VDDA I 070 243 un s E TTT 5520 er z Bo mm Am U77 mm A ml Cz D56 iE 14614 m 022 LT U37 1224 22 B vzzu m m G22H 1223 4025
113. r hospital type facility Home Care use is defined as managed used by a lay person parent or other similar non critical caregiver in the home environment Use with any particular patient requires the selection of an appropriate oxygen sensor as described in the N 595 Operator s Manual Motion performance claims are applicable to models MAX A MAX AL MAX P MAX N and MAX I Nellcor OxiMAX M oximetry sensors Through the use of the four softkeys the operator can access trend information select an alarm limit to be changed choose the language to be used adjust the internal time clock and change communications protocol The N 595 can operate on AC power or on an internal battery The controls and indicators for the N 595 are illustrated and identified in Figure 1 and Figure 2 Introduction Front Panel 21 20 19 18 17 16 1514 13 12 11 1 SpOz Sensor Port 12 ADJUST DOWN Button 2 AC Power Indicator 13 Neonate Mode Indicator 3 ON STANDBY Button 14 CONTRAST Button 4 Low Battery Indicator 15 Fast Response Mode Indicator 5 Waveform Display 16 Softkeys 6 SatSeconds Timer 17 Menu Bar 7 YSpO2 Display 18 Data In Sensor Indicator 8 Pulse Rate Display 19 Motion Indicator 9 Alarm Silence Display 20 Pulse Search Indicator 10 ALARM SILENCE Button 21 Speaker 11 ADJUST UP Button Figure 1 N 595 Front Panel Rear Panel
114. rend is Trend 01 on the Instat printout If a Trend 01 already exists in memory from an earlier Delete the next deleted trend will become Trend 02 Every time DELETE is pressed the number of existing trends will increase by 1 The current trend will have the largest trend number In the Instat printout below line one is for instrument type software revision level type of printout and alarm parameter settings The second line contains the column headings A trend point is recorded for every 4 seconds of instrument operation Up to 48 hours of instrument operation data can be recorded If the final line on the printout shows Output Complete then the data has been successfully transmitted with no corruption If there is no Output Complete line printed the data should be considered invalid 43 Power On Settings and Service Functions N 595 VERSION X X X X Instat SpO2 Limit 30 100 PR Limit 100 180BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME Trend 01 96SpO2 BPM PA Status 12 FEB 02 14 00 00 SD 12 FEB 02 14 00 05 PS 12 FEB 02 14 00 10 12 FEB 02 14 00 15 N 595 VERSION X X X X Instat SpO2 Limit 80 100 PR Limit 60 180BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME TREND 02 SpO2 BPM PA Status 12 FEB 02 14 24 24 79 58 220 PSSLPL 12 FEB 02 14 24 29 79 57 220 PSSLPL 12 FEB 02 14 24 29 0 0 PSLPSLPL N 595 VERSION X X X X Instat SpO2 Limit 80 100 PR Limit 60 180BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME T
115. rface PCB Connect the CCFL wire harness with two white wires to J5 of the User Interface PCB Connect the Display PCB ribbon cable to J13 of the User Interface PCB Install the clip over the J13 connector Complete the procedure in paragraph Monitor Assembly on page 66 Alarm Speaker Removal Replacement Removal 78 Complete the procedures in paragraphs Prior to Disassembly on page 64 and Monitor Disassembly on page 65 Disconnect the speaker wire harness from J12 on the User Interface PCB Figure 13 Disassembly Guide 3 Pull the holding clip back from the speaker and lift the speaker out of the top case Connect speaker wires to J12 connector frs XT Holding Clip Figure 13 Alarm Speaker Replacement 4 Pull the holding clip back and insert the speaker into the top case 5 Connect speaker wire harness to J12 on the User Interface PCB 6 Complete the procedure in paragraph Monitor Assembly on page 66 N 595 79 Disassembly Guide Top Case Assembly Removal Replacement Removal 1 Complete the procedures in paragraphs Prior to Disassembly on page 64 and Monitor Disassembly on page 65 2 Complete the procedural steps 1 through 6 in paragraph User Interface PCB Removal Replacement on page 76 Replacement screws to a maximum of 4 inch pounds Over tightening could strip out the Caution When installing the User Interface PCB hand t
116. rformance Verification Note The software Version displayed in the example below is X X X X The actual software version will be displayed on your monitor 595 VERSION x x x x A 1 beep sounds indicating proper operation of the speaker and all indicators turn off except the AC Power Battery Charging indicator and the LCD screen The N 595 begins normal operation PLETH VIEW NELLCOR N 595 BLIP MAGNIFIED VIEW NELLCOR N 595 e en e M LIMITS TREND SETUP LIGHT e oe OP Power On Defaults and Alarm Range Limits Note When observing or changing alarm limits a time out is in effect approximately 10 seconds If no action 1s taken within the time out the monitor automatically returns to the monitoring display Note The descriptions that follow are based on the assumption that Pleth view is the view that has been selected N 595 13 Performance Verification 14 The steps for changing an alarm limit are the same if the view being used is Blip Magnified view Note Power on defaults will be the factory set defaults or the defaults set by your institution 1 Turn on the N 595 by pressing the ON STANDBY button LIMITS 2 Press the LIMITS softkey Verify that the monitor emits a single beep and the pleth view is replaced with a display of the alarm limits The upper alarm l
117. rmat is compatible with the data port of the N 595 If the communications format is compatible real time data will begin to be displayed on the PC Capture the text to a file Use Control C to stop data flow Import the data file into the spreadsheet The data can now be manipulated by the commands of the spreadsheet Some formatting of the data may be necessary Data Port Interface Protocol Real Time Printout When a real time display or printout is being transmitted to a printer or PC a new line of data is printed every 2 seconds Every 25th line is a Column Heading line A column heading line is also printed any time a value in the column heading line is changed A real time printout is shown in Figure 17 Note Ifthe data output stops transmitting turn the power off and back on again or if the monitor is connected to a PC send an XON Ctrl q to resume transmission N 595 VERSION 1 0 0 0 CRC XXXX SpO2 Limit 85 100 PR Limit 40 170BPM ADULT OSAT S SPO2 RESP MODE NORMAL TIME SpO2 BPM Status 13 FEB 02 14 00 05 100 120 50 13 FEB 02 14 00 07 100 124 50 13 FEB 02 14 00 09 100 190 52 13 FEB 02 14 00 11 100 190 50 13 FEB 02 14 00 13 100 190 51 13 FEB 02 14 00 15 100 190 50 13 FEB 02 14 00 17 100 190 50 13 FEB 02 14 00 19 100 190 51 13 FEB 02 14 00 21 100 190 53 13 FEB 02 14 00 23 100 190 50 13 FEB 02 14 00 25 13 FEB 02 14 00 27 sD 13 FEB 02 14 00 29 SD 13 FEB 02 14 00 31 SD 13 FEB 02 14 00 33 SD
118. rse call output with backlight on while using a pulse simulator set for 224 bpm high light and low modulation Type Lead acid Voltage 6 Volts DC Recharge 14 hours with N 595 turned off 18 hours with N 595 operating Shelf Life 2 months new fully charged battery After 2 months storage the N 595 will run for 50 of stated battery life Complies With 91 157 EEC OxiMax Sensors Wavelength and The wavelength range of the light emitted are near 660 nm and Power 890 nm with the energy not exceeding 15 mW Environmental Conditions 90 Operating Temperature 5 C to 40 C 41 F to 104 F Altitude 390 m to 3 012 m 1 254 ft to 9 882 ft Atmospheric Pressure 70 kPa to 106 kPa 31 3 in Hg to 20 6 in Hg 595 Specifications Relative Humidity 15 to 95 non condensing to be compliant with IEC 60601 1 sub clause 44 5 Transport and Storage not in shipping container Temperature 20 C to 60 C 4 F to 140 F Altitude 390 m to 5 574 m 1 254 ft to 18 288 ft Atmospheric Pressure 50 kPa to 106 kPa 31 3 in Hg to 14 7 in Hg Relative Humidity 15 to 95 non condensing Transport and Storage in shipping container Temperature 20 C to 70 C 4 F to 158 F Altitude 390 m to 5 574 m 71 254 ft to 18 288 ft Atmospheric Pressure 50 kPa to 106 kPa 31 3 in Hg to 1
119. s variable amounts of light during the pulsations The ratio of light absorbed is translated into a measurement of functional oxygen saturation SpO Because a measurement of SpO is dependent upon light from the OxiMAx sensor excessive ambient light can interfere with this measurement Specific information about ambient conditions OxiMAx sensor application and patient conditions is contained throughout this manual Pulse oximetry is based on two principles that oxyhemoglobin and deoxyhemoglobin differ in their absorption of red and infrared light 1 spectrophotometry and that the volume of arterial blood in tissue and hence light absorption by that blood changes during the pulse i e plethysmography A pulse oximeter determines SpO by passing red and infrared light into an arteriolar bed and measuring changes in light absorption during the pulsatile cycle Red and infrared low voltage light emitting diodes LED in the oximetry sensor serve as light sources a photo diode serves as the photo detector Because oxyhemoglobin and deoxyhemoglobin differ in light absorption the amount of red and infrared light absorbed by blood is related to hemoglobin oxygen saturation To identify the oxygen saturation of arterial hemoglobin the pulse oximeter uses the pulsatile nature of arterial flow During systole a new pulse of arterial blood enters the vascular bed and blood volume and light absorption increase During diasto
120. s on page 54 e Monitor does not respond properly to buttons being pressed 3 Display Alarms Display Alarms on page 55 e Display does not respond properly Alarms and other tones do not sound properly or are generated without apparent cause 4 Operational Performance Operational Performance on page 56 Displays appear to be operational but monitor shows no readings e Suspect readings 5 Data Port Data Port on page 57 e N 595 data port not functioning properly of the problem areas in Table 4 on page 52 are discussed in the following paragraphs 52 Troubleshooting Power Power problems are related to AC and or DC Table 5 lists recommended actions to power problems Condition Table 5 Power Problems Recommended Action Battery Low indicator lights steadily while N 595 is connected to AC and battery is not discharged Ensure that the N 595 is plugged into an operational AC outlet and the AC indicator is on e Check the fuses The fuses are located in the Power Entry Module as indicated in Fuse Replacement on page 64 Replace if necessary Open the monitor as described in Monitor Disassembly on page 65 Verify the power supply s output to the battery while on AC Disconnect the battery leads from the battery and connect a DVM to them The voltage measured should be 6 65 to 6 95 VDC and the current should be 320 to 480 mA Replace power supply if above values are not met
121. seconds Cw 16 Press and hold the ALARM SILENCE button until the BPM display indicates SEC Continue to press the ALARM SILENCE button and press the ADJUST DOWN button until 30 is displayed in the SpOz display C 17 Press the ADJUST UP button and verify that the displays indicate 60 SEC 90 SEC 120 SEC and OFF Release the ADJUST UP button when the display indicates OFF 18 Press and release the ALARM SILENCE button Verify that the monitor s ALARM SILENCE indicator flashes 19 Wait approximately 3 minutes Verify that the monitor s alarm does not return After 3 minutes the monitor s alarm silence reminder beeps three times and will continue to do so at approximately 3 minute intervals N 595 19 Performance Verification Alarm Volume Control After completing Alarms and Alarm Silence on page 18 perform the following procedure 1 Press and hold the ALARM SILENCE button and verify the following e OFF is displayed for approximately 3 seconds e After 3 seconds a steady tone is heard at the default alarm volume setting the SpO2 display indicates VOL and the BPM display indicates the default setting of 7 Cw 2 While still pressing the ALARM SILENCE button press the ADJUST DOWN button until an alarm volume setting of 1 is displayed Verify that the volume of the alarm has decreased but is still audible C 3 Continue pressing the ALARM SILENCE button and press the ADJUST UP button to
122. software ALARMS SELECT ALLOW OFF Allows alarms to be turned off up down buttons select Yes No OFF REMINDER enables disables Alarm Off reminder up down buttons select Yes No BACK back to Service menu NEXT back to Service menu EXIT back to Main menu The EXIT softkey returns the monitor to the Main menu There are not enough softkeys to display all of the options that are available at some levels of the menu Pressing the NEXT softkey allows you to view additional options available at a given menu level 39 Power On Settings and Service Functions Param Softkey Menu PARAM When the PARAM softkey is pressed the function of the softkeys changes as shown below These options can be accessed without disconnecting the pulse oximetry cable from the instrument NELLCOR SP02 BPM Reset Softkey RESET The RESET softkey can be used if any settings stored in memory have been changed from factory default values If YES is pressed the instrument sounds three tones and the settings return to factory default values When NO is pressed no changes are made to the settings stored in memory Save Softkey save When adjustable values are changed from factory default the SAVE softkey can be used to preserve the settings as institutional power on default values Pressing YES stores the current settings in memory The instrument sounds three tones
123. ssions The N 595 is suitable for use in the specified electromagnetic environment The customer and or user of the N 595 should assure that it is used in an electromagnetic environment as described below Electromagnetic Environment Emissions Test Compliance poss Guidance RF emission Class B The N 595 must emit electromagnetic Group 1 energy in order to perform its intended CISPR 11 function Nearby electronic equipment may be affected RF emissions Class B The N 595 is suitable for use in all Group 1 establishments CISPR 11 Harmonic emissions Complies IEC 61000 3 2 Voltage fluctuations Complies flicker emission IEC 61000 3 3 95 Specifications 96 Table 14 Electromagnetic Immunity The N 595 is suitable for use in the specified electromagnetic environment The customer and or user of the N 595 should assure that it is used in an electromagnetic environment as described below Immunity IEC60601 1 2 Compliance Electromagnetic Environment Test Test Level Level Guidance Electrostatic 6 kV contact 6 kV contact Floor should be wood discharge ESD concrete or ceramic tile If floors are covered with synthetic material the 8 kV air 8 kV air relative humidity should IEC 61000 4 2 be at least 30 Electric fast 2 kV for power 2 kV for power Mains power quality transient burst supply lines supply lines should be that of a typical IEC 6
124. t Removal 1 Complete the procedures in paragraphs Prior to Disassembly on page 64 and Monitor Disassembly on page 65 2 Disconnect the CCFL harness two white wires from J5 of the User Interface PCB See Figure 11 3 Use a small blade screwdriver to pry the clip from either edge of J13 then disconnect the Display PCB ribbon cable from the connector 4 Disconnect the keypad ribbon cable from connector J17 on the User Interface PCB Figure 11 Lift up on the ribbon cable s outer shell until it clicks then remove the cable from the connector 5 Disconnect the speaker cable from J12 on the User Interface PCB 6 Remove the five screws in the User Interface PCB Figure 12 on page 77 76 Disassembly Guide 7 Remove the User Interface PCB from the top case Figure 12 User Interface PCB Replacement screws to a maximum of 4 inch pounds Over tightening could strip out the screw holes in the top case rendering it unusable Caution When installing the User Interface PCB hand tighten the five 8 Place the User Interface PCB in the top case 9 Install the five screws in the User Interface PCB 10 Lift up on the outer shell of J17 Figure 11 on the User Interface PCB until it clicks Insert the keypad ribbon cable into J9 of the User Interface PCB Slide the outer shell of J17 down until it locks in place N 595 77 Disassembly Guide Connect the speaker cable to J12 of the User Inte
125. to receive a full charge The battery is being charged whenever the instrument is plugged into AC Note If power stored in the battery is too low the unit will not operate even when plugged into AC If this occurs leave the unit plugged in to allow the battery to charge as described in Battery Charge on page 12 After approximately 10 minutes the battery should have enough charge to allow the unit to operate on AC Performance Verification Introduction This section discusses the tests used to verify performance following repairs or during routine maintenance All tests can be performed without removing the N 595 cover All tests except the battery charge and battery performance tests must be performed as the last operation before the monitor is returned to the user If the N 595 fails to perform as specified in any test repairs must be made to correct the problem before the monitor is returned to the user Equipment Needed Table 1 Equipment Needed Equipment Description Digital Multimeter DMM Fluke Model 87 or equivalent Durasensor Oxi MAX oxygen DS 100A sensor OXIMAX oxygen sensor MAX A Safety Analyzer Must meet current AAMI ESI 1993 amp IEC 60601 1 1998 specifications Pulse oximetry cable DOC 10 Data interface cable EIA 232 cable optional Stopwatch Manual or electronic Nellcor model SRC MAX Tester Provides testing for DigiCal compatible Monitors Performance Tests
126. ts memory Note The two letter codes and the symbols that occur in the printout are described in Table 19 on page 120 N 595 41 Power On Settings and Service Functions Trend Softkey A Trend printout will include all data recorded for up to 48 hours of monitoring TREND since the last Delete Trends was performed A new trend point is recorded every 4 C seconds The figure below is an example of a Trend printout N 595 VERSION XX X X TREND SpO2 Limit 30 100 PR Limit 100 180BPM ADULT OSAT S 2 RESP MODE NORMAL TIME SpO2 PR bpm PA 12 FEB 02 14 00 00 100 120 220 12 FEB 02 14 00 05 100 124 220 12 FEB 02 14 00 10 100 190 220 12 FEB 02 14 00 15 220 12 FEB 02 18 00 43 ses 12 FEB 02 18 00 48 eee sas N 595 VERSION X X X X TREND SpO2 Limit 30 100 Limit 100 180BPM ADULT OSAT S 2 RESP MODE NORMAL TIME SpO2 PR bpm PA 12 FEB 02 18 00 53 T 225 12 FEB 02 18 00 58 wee His 12 FEB 02 18 01 03 98 12 FEB 02 18 01 08 98 12 FEB 02 18 01 13 99 Output Complete The first row of the printout includes information about the type of instrument delivering the information the software level type of printout and alarm parameters The second line lists the headings for the columns These lines are printed out every 25 lines or when a change to an alarm limit is made Patient data 1s represented with a date and time stamp for the data In the example above the means that an OxiMAx sensor was conn
127. ud rate setting will be in effect until the monitor is powered off The baud rate setup for the monitor may be saved as institutional default settings See Setting Institutional Defaults Sample on page 47 Use care when performing this procedure because all settings will be saved as institutional default settings The COMM softkey is used to select from eight communication protocols supported by the data port The selections are e Note ASCII used for printouts OXINET to enable communication with Oxinet II CLINICAL intended for Nellcor use only GRAPH for graphic printouts AGILENT interfaces the N 595 with an Agilent HP monitor SPACELBS interfaces the N 595 with a SpaceLabs monitor MARQ interfaces the N 595 with a GE Marquette monitor DATEX interfaces the N 595 with a Datex Ohmeda AS 3 monitor Selecting AGILENT SPACELBS MARQ or DATEX automatically sets the baud rate to the rate applicable for that protocol To change the communication protocol N 595 107 Data Port Interface Protocol 1 Turn on the N 595 by pressing the ON STANDBY button SETUP Q z z 4 4 SELECT 00 EXIT 2 Press the SETUP softkey 3 Press the NEXT softkey 4 Press the NEXT softkey 5 Press the COMM softkey 6 Press the SELECT softkey SERIAL PORT SETUP SP02 BAUD 9600 PROTOCOL ASCII BPM m SELECT EXIT 7 Use the ADJUST UP and ADJUST DOWN buttons to select the
128. unications Error displayed on the Datex monitor When the N 595 is in the Datex mode of operation the interface baud rate is automatically set to 2 400 bits per second WARNING Do not silence the N 595 audible alarm or decrease its volume if patient safety could be compromised The Datex Ohmeda monitor does not indicate audible or visual alarms for equipment interfaced The N 595 monitor must be able to sound an audible alarm in order to maintain patient safety Note The parameters setup for the Datex Ohmeda bedside monitor interface may be saved as institutional default settings See Setting Institutional Defaults Sample on page 47 Use care when performing this procedure because all settings will be saved as institutional default settings Connecting to the Data Port N 595 Data 15 transmitted in the RS 232 format pins 2 3 and 5 or RS 422 pins 1 4 9 and 12 RS 232 data can be transmitted a maximum of 25 feet RS 422 data up to 4000 feet The pin outs for the data port are illustrated in Figure 16 Table 18 Data Port Pin Outs Pin Signal 1 RXD RS 422 positive input 2 RXD 232 RS 232 input TXD 232 RS 232 output 4 TXD RS 422 positive output 113 Data Port Interface Protocol Table 18 Data Port Pin Outs Pin Signal 5 Signal Ground isolated from earth ground 6 AN SpO2 analog saturation output 7 Normally Open N O Dry Contacts for Nurse Call N O wit
129. ures in paragraphs Prior to Disassembly on page 64 and Monitor Disassembly on page 65 2 Disconnect the CCFL harness from J5 of the User Interface PCB See Figure 11 3 Use a small blade screwdriver to pry the clip from either edge of J13 then disconnect the Display PCB ribbon cable from the connector 4 Separate the adhesive connection of the double sided tape and lift the Display PCB up to remove it from the top case 74 Disassembly Guide 5 Remove and discard the used double sided tape Double Sided Tape Display PCB Double Sided Speaker wires to J12 on the UIF PCB Display Ribbon Cable CCFL wires to J5 on the UIF PCB Display ribbon cable to J13 on UIF PCB Keypad ribbon cable to J17 on UIF PCB Figure 11 Display PCB Replacement 6 Install new double sided tape as shown in Figure 11 7 Slide the Display PCB into the grooves in the top case Check to make sure the Display PCB is firmly seated in the top case Apply pressure between the top case and the display PCB to make good contact with the double sided tape 8 Connect the CCFL wire harness with two white wires to J5 of the User Interface PCB N 595 75 Disassembly Guide 9 Connect the Display PCB ribbon cable to J13 of the User Interface PCB Install the clip over the 15 connector 10 Complete the procedure in paragraph Monitor Assembly on page 66 User Interface PCB Removal Replacemen
130. xiMAx sensors can be identified by the deep blue color of their plug All OxiMAx compatible sensors contain a memory chip carrying information about the OxiMAx sensor which the oximeter needs for correct operation including the OxiMAx sensor s calibration data model type troubleshooting codes and error detection data This unique oximetry architecture enables several new features with the N 595 When an OxiMAx compatible sensor is connected to the N 595 the pulse oximeter will first read the information in the OxiMAx sensor memory chip check it to make sure that there are no errors and then load the data to begin monitoring As the pulse oximeter reads the information it flashes the OxiMAx sensor model number on its display This process takes a couple of seconds Once the reading process is complete the OxiMAx sensor model number will stop flashing on the display and then the N 595 will begin monitoring The OxiMAx sensor model number disappears after the pulse oximeter starts tracking the patient s SpO2 and pulse rate Pulse Oximeters containing OxiMAx technology including the N 595 use calibration data contained in the sensor in calculating the patient s SpO2 By having the calibration in the OxiMAx sensor rather than the pulse oximeter the accuracy of many OxiMAx sensors can be improved because the calibration coefficients can be tailored to each OxiMAx sensor Consult the accuracy card included with the pulse oximeter f
131. ysical 92 Status Code Alarm Off 120 Alarm Silence 120 Battery in Use 120 Loss of Pulse 120 Loss of Pulse with Motion 120 Low Battery 120 Motion 120 Pulse Rate High Limit Alarm 120 Pulse Rate Low Limit Alarm 120 Pulse Search 121 Saturation High Limit Alarm 121 Saturation Low Limit Alarm 121 Sensor Disconnect 121 Status Codes 120 Storage Relative Humidity 91 Temperature 91 Surface Cleaning 9 T Test 1 SpO2 29 Test 2 BPM 28 Test 3 Modulation Level 30 Test 4 Light 32 Transport Altitude 91 N 595 Index Relative Humidity 91 Temperature 91 Trend Data Printout ASCII Mode 121 Trend Dump 116 Trend Printout Graph Mode 121 Trend Softkey 42 Troubleshooting Guide 51 U User Interface PCB Replacement 76 Using Data on the PC 116 Warnings 1 Who Should Perform Repairs 51 169 tyco Healthcare Nellcor Nellcor Puritan Bennett Inc 4280 Hacienda Drive Pleasanton CA 94588 USA Telephone Toll Free 1 800 635 5267 Authorizd Representative Tyco Heathcare UK LTD 154 Fareham Road Gosport PO13 OAS U K Telephone 44 1329 224000 Rx ONLY G 0123 04 2003 Nellcor Puritan Bennett Inc All rights reserved 067030 0403

Pulse Oximeter Service Manual

Contents

Download Pdf Manuals

Related Search

Related Contents