Nellcor SYMPHONY N-3100 Service Manual Download Page 71 | Manualshive

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Section 6: Disassembly Guide

6- 9

Figure 6-7: Installing the Handle

6.

Depending upon the level of repairs, you may have to reconfigure the
monitor’s Internal Configuration Code (ICC) in order to get the monitor
to operate properly. Reconfiguration is performed using menu item 20 of
the service mode. Refer to Section 4, Configuration and Service Mode.

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Summary of Contents for SYMPHONY N-3100

Page 1: ...0 463 4000 outside the United States call your local Nellcor Puritan Bennett representative Caution Federal law U S restricts this device to sale by or on the order of a physician 1998Nellcor Incorporated All rights reserved 034134B 0298 SERVICE MANUAL NELLCOR SYMPHONY N 3100 Blood Pressure Monitor ...

Page 2: ...r Oxfordshire OX6 0JX United Kingdom Tel 44 1869 322700 Nellcor Puritan Bennett Belgium NV SA Interleuvenlaan 62 8 Zone 2 B 3001 Heverlee Belgium Tel 32 16 400467 Nellcor Puritan Bennett France 3 Avenue du Canada Bâtiment Sigma LP851 91975 Courtaboeuf Cedex France Tel 33 01 69 82 14 00 Nellcor Puritan Bennett Germany GmbH Black Decker Strasse 28 65510 Idstein Germany Tel 49 6126 5930 Nellcor Purit...

Page 3: ...2 Power On Defaults for Adult Pediatric Alarm Limits and Ranges 3 3 3 3 1 3 Power On Defaults for Neonatal Alarm Limits and Ranges 3 7 3 3 2 Verification of Pneumatic System 3 10 3 3 2 1 Pressure Transducer Accuracy 3 11 3 3 2 2 Pneumatic Leakage Adult 3 12 3 3 2 3 Pneumatic Leakage Neonate 3 12 3 3 2 4 Cuff Inflation Rate 3 13 3 3 2 5 Cuff Deflation Rate 3 13 3 3 2 6 High Pressure Adult 3 14 3 3 ...

Page 4: ...12 4 3 6 Menu Item 6 Total Operating Hours Report 4 12 4 3 7 Menu Items 7 16 Error Log Record Report 4 12 4 3 8 Menu Item 17 Instrument Identification IID Report 4 13 4 3 9 Menu Item 18 Power and Battery Status Report 4 13 4 3 10 Menu Item 19 Persistent Time Sense Report 4 14 4 3 11 Menu Item 20 Reset to Factory Defaults 4 14 4 3 12 Menu Item 21 Initial Cluster Instrument Number CIN Selection 4 14...

Page 5: ... 6 2 6 3 1 Replacing the Piezo Speaker 6 3 6 3 2 Replacing the Monitor Speaker 6 4 6 3 3 Replacing the Hose Fitting 6 5 6 3 4 Removing the UIF Board 6 5 6 3 5 Removing the Pump Module 6 7 6 4 Lithium Battery Replacement 6 8 6 5 Reassembly 6 8 Section 7 Spare Parts 7 1 7 1 Introduction 7 1 Section 8 Packing for Shipment 8 1 8 1 General Instructions 8 1 8 2 Repacking in Original Carton 8 2 8 3 Repac...

Page 6: ...anded View 7 2 8 1 Repacking the N 3100 8 2 S2 1 Oscillatory Blood Pressure Measurement S 2 S4 1 N 3100 Functional Block Diagram S 4 S4 2 Internal External Bus Connections S 5 S4 3 Speaker Driver and Volume Control Block Diagram S 8 S4 4 Display Board Block Diagram S 10 LIST OF TABLES 3 1 Earth Leakage Current Limits 3 17 3 2 Patient Leakage Current Limits 3 18 3 3 Patient Leakage Current Test Con...

Page 7: ...1 2 3 Note A note gives information that requires special attention 1 3 N 3100 BLOOD PRESSURE MONITOR DESCRIPTION The N 3100 is a noninvasive blood pressure monitor that measures systolic diastolic and mean arterial blood pressure It also derives the patient s pulse rate at the time of blood pressure measurement The N 3100 is intended for hospital use to monitor adult pediatric or neonatal patient...

Page 8: ... DIASTOLIC display 12 BATTERY IN USE BATTERY LOW indicator 3 MEAN PULSE RATE display 13 PRINTER IN USE STACKED indicator 4 UPPER ALARM LIMIT button 14 PRINT button 5 CYCLE button 15 STAT MODE button 6 AUTOMATIC MODE indicator 16 START STOP MEASUREMENT button 7 MANUAL MODE indicator 17 LOWER ALARM LIMIT button 8 PULSE button 18 CYCLE indicator 9 AUDIBLE ALARM OFF indicator 19 PULSE RATE indicator 1...

Page 9: ...tt s Technical Services Department or your local Nellcor Puritan Bennett representative 2 Inspect safety labels for legibility If labels are not legible contact Nellcor Puritan Bennett s Technical Services Department or your local Nellcor Puritan Bennett representative 3 Verify that the monitor performs properly as described in paragraph 3 3 4 Perform the electrical safety tests detailed in paragr...

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Page 11: ...ure Analyzer or equivalent 3 3 PERFORMANCE TESTS The following tests are used to verify performance of the N 3100 and should be performed following troubleshooting and repairs If the N 3100 fails any test refer to Section 5 Troubleshooting 3 3 1 Power up The power up tests paragraphs 3 3 1 1 through 3 3 1 3 verify the following monitor functions Power On Self Test Power On Defaults for Adult Pedia...

Page 12: ...cept the POWER ON indicator turn off briefly d Each segment in the digital displays lights individually in sequence in a scanning or firefly test pattern and all indicators light momentarily e The sequence of steps b and c will be repeated until all internal tests are complete Note The number of times the sequence of steps b and c is repeated is dependent on the amount of information stored in tre...

Page 13: ...0 UP and DOWN ARROW buttons located on the top of the monitor When the N 3100 is stacked with the N 3000 the N 3200 or both the Nellcor knob on either of these units can be used to perform the function of the N 3100 UP and DOWN ARROW buttons Turning the Nellcor knob in a clockwise direction is equivalent to pressing the N 3100 UP ARROW button Turning the knob in a counterclockwise direction is equ...

Page 14: ... value to which the lower systolic alarm limit can be adjusted 6 From the normal mode steady state press and release the UPPER ALARM LIMIT button twice Verify that the monitor emits a single beep each time you press the button Verify that the DIASTOLIC display indicates default alarm limit value of 210 for a few seconds and verify that the other displays show dashes at the top while the 210 is dis...

Page 15: ...5 is the highest value to which the lower alarm limit can be adjusted 16 From the normal mode steady state press and release the UPPER ALARM LIMIT button four times Verify that the monitor emits a single beep each time you press the button Verify that the PULSE RATE indicator is lit and the MEAN PULSE RATE display indicates the default alarm limit value of 170 for a few seconds and verify that the...

Page 16: ...es rapidly Verify that the monitor emits two beeps and that the DIASTOLIC display indicates an alarm limit of 50 for a few seconds 27 From the normal mode steady state press the UPPER ALARM LIMIT button three times rapidly Verify that the monitor emits three beeps and that the MEAN PULSE RATE display indicates an alarm limit of 225 for a few seconds 28 From the normal mode steady state press the L...

Page 17: ...n the N 3100 is stacked with the N 3000 the UP and DOWN ARROW buttons are not accessible and the Nellcor knob must be used 1 Press the ON STANDBY button to turn the unit on Verify that the N 3100 is in the neonatal mode which is indicated by the NEONATAL MODE indicator being lit If the indicator is not lit quickly press and release the NEW PATIENT NEONATAL button twice to place the N 3100 in the n...

Page 18: ...mit and verify that the other displays show dashes at the bottom while the 30 is displayed 9 From the normal mode steady state press the LOWER ALARM LIMIT button twice Within 3 seconds press and hold the DOWN ARROW button until 20 is displayed in the DIASTOLIC display Verify that 20 is the lowest value to which the lower alarm limit can be adjusted 10 From the normal mode steady state press and re...

Page 19: ...e beep each time you press the button Within 3 seconds verify that the PULSE RATE indicator is lit and the MEAN PULSE RATE display indicates an alarm limit value of 40 and verify that the other displays show dashes at the bottom while the 40 is displayed 19 From the normal mode steady state press the LOWER ALARM LIMIT button four times Within 3 seconds press and hold the DOWN ARROW button until 30...

Page 20: ... that the monitor emits four beeps the PULSE RATE indicator lights and the MEAN PULSE RATE display indicates an alarm limit of 40 for a few seconds 31 Press the ON STANDBY button to place the N 3100 in the standby mode Verify that the monitor emits three consecutively higher pitched beeps 3 3 2 Verification of Pneumatic System Tests in paragraphs 3 3 2 1 through 3 3 2 7 verify the functionality of...

Page 21: ...rvice mode steady state SEr is continuously displayed in the MEAN PULSE RATE display Note To exit any test and return to the service mode steady state press the LOWER ALARM LIMIT button To exit the service mode steady state at any time press the ON STANDBY button to turn the N 3100 off If there is no button activity for 5 minutes the N 3100 will shut itself off and exit the service mode 3 3 2 1 Pr...

Page 22: ...less indicates successful completion of the test 6 Return to the service mode steady state by pressing the LOWER ALARM LIMIT button 3 3 2 3 Pneumatic Leakage Neonate The pneumatic leakage test verifies the integrity of the pneumatic system in the neonate mode Prior to performing this procedure the setup procedure in paragraph 3 3 2 must be completed 1 Press the UP DOWN ARROW buttons until menu ite...

Page 23: ...OWER ALARM LIMIT button 3 3 2 5 Cuff Deflation Rate The cuff deflation rate test verifies the deflation rate Prior to performing this procedure the setup procedure in paragraph 3 3 2 must be completed 1 Press the UP DOWN ARROW buttons until menu item 32 is displayed in the SYSTOLIC display 2 Press the UPPER ALARM LIMIT button 3 Press the START STOP button The simulator begins to pressurize The cur...

Page 24: ...h pressure relief valve opens If the pressure relief valve does not open by the time 331 mmHg is reached the test is unsuccessful 5 The SYSTOLIC display indicates menu item 35 The DIASTOLIC display indicates the maximum pressure achieved If the high pressure relief valve does not open the DIASTOLIC display flashes A reading of 330 mmHg or less indicates successful completion of the test 6 Return t...

Page 25: ...e detection in the adult mode 1 Turn on the Bio Tek simulator and press the MODE button three times to place it in the Tests mode The simulator screen will indicate Internal Cuff and Pressure Gauge 2 Connect the simulator hose to the hose connector on the right side panel of the N 3100 3 Place the simulator in the Adult Internal Cuff mode and return to Tests mode 4 Press the MODE button on the sim...

Page 26: ...anual mode the MANUAL indicator is lit 7 Set the N 3100 to the neonatal mode the NEONATAL MODE indicator is lit 8 Press and release the START STOP button on the N 3100 9 After completion of the blood pressure test cycle press the PULSE button on the N 3100 The measured pulse rate appears in the MEAN PULSE RATE display 10 A reading between 135 145 bpm indicates successful completion of the test 3 4...

Page 27: ...s test is in compliance with IEC 601 1 and AAMI Standard ES1 paragraph 3 3 1 Chassis Source Current between the power ground and Part B exposed conductive hardware 1 Configure the electrical safety analyzer as follows Function Leakage Range µA 2 Connect the monitor AC plug to the electrical safety analyzer as recommended by the analyzer operating instructions 3 Connect the electrical safety analyz...

Page 28: ...und 6 The leakage current must not exceed the values shown in the table below Table 3 2 Patient Leakage Current Limits AC LINE POLARITY NEUTRAL LINE POWER LINE GROUND CABLE LEAKAGE CURRENT Normal Closed Closed 10 µA Normal Open Closed 10 µA Normal Closed Open 10 µA Reverse Closed Closed 10 µA Reverse Open Closed 10 µA Reverse Closed Open 10 µA 3 4 2 3 Patient Leakage Current Mains Voltage on the A...

Page 29: ...d to the patient connector on the monitor s sensor input 4 The equipotential terminal is not connected to ground 5 All functional earth terminals are not connected to ground 6 The analyzer leakage current must not exceed 10 µA for any of the conditions shown below Table 3 3 Patient Leakage Current Test Configurations Mains Voltage on the Applied Part AC LINE POLARITY NEUTRAL LINE POWER LINE GROUND...

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Page 31: ...ounds or beeps associated with turning a Nellcor knob When the N 3100 is stacked with the N 3000 the UP and DOWN ARROW buttons are not accessible and the Nellcor knob must be used To enter configuration mode 1 If the monitor is on turn it off 2 While simultaneously pressing both UPPER and LOWER ALARM LIMIT buttons turn the monitor on Continue to hold down both the UPPER and LOWER ALARM LIMIT butto...

Page 32: ...rm Limit Press LOWER ALARM LIMIT button twice Mean Upper Alarm Limit Press UPPER ALARM LIMIT button three times Mean Lower Alarm Limit Press LOWER ALARM LIMIT button three times Pulse Rate Upper Alarm Limit Press UPPER ALARM LIMIT button four times Pulse Rate Lower Alarm Limit Press LOWER ALARM LIMIT button four times Alarm Volume Press and hold ALARM SILENCE button Alarm Silence Duration Press AL...

Page 33: ...UP or DOWN ARROW button on top of the monitor You cannot increase the value higher than the set upper alarm limit 3 To place the monitor back into configuration mode steady state allow the display to time out 3 seconds 4 2 4 Diastolic Upper Alarm Limit 1 From configuration mode steady state press the UPPER ALARM LIMIT button twice The current default value is displayed in the DIASTOLIC display 2 T...

Page 34: ...o configuration mode steady state allow the display to time out 3 seconds 4 2 8 Pulse Rate Upper Alarm Limit 1 From configuration mode steady state press the UPPER ALARM LIMIT button four times The PULSE RATE indicator will light and the current default value will be displayed in the MEAN PULSE RATE display 2 To change the upper alarm limit value press and hold the UP or DOWN ARROW button on top o...

Page 35: ...d while holding the ALARM SILENCE button press the UP or DOWN ARROW button to adjust the silence duration Silence duration choices are 30 SEC 60 SEC 90 SEC and 120 SEC 3 To exit this procedure and set the alarm silence duration default release the ALARM SILENCE button and return to the configuration mode steady state 4 2 12 Auto Measurement Cycle Interval Use the following procedure to adjust the ...

Page 36: ...STOLIC display represents the software version The next two characters in the SYSTOLIC display represent the major software revision The three characters in the DIASTOLIC display represent the minor software revision To return to the configuration menu steady state press the LOWER ALARM LIMIT button or allow the unit to time out 10 seconds 3 To enable or disable the measurement complete tone press...

Page 37: ...T and PRINT buttons while the monitor performs the power on self test POST 3 When SEr begins flashing in the MEAN PULSE RATE display release the UPPER and LOWER ALARM LIMIT and PRINT buttons 4 Within 15 seconds press the PRINT button to set the N 3100 to the service mode steady state You must press the PRINT button within 15 seconds or the monitor will turn itself off automatically In the service ...

Page 38: ... from one submenu item to another Note Some menu items do not have submenu item selections 7 To return to the service mode steady state from a menu item press the LOWER ALARM LIMIT button 8 To exit the service mode turn off the monitor by pressing the ON STANDBY button The N 3100 automatically turns off if no action is taken for approximately 5 minutes Main menu items available from the service mo...

Page 39: ...Record 8 15 Error Log Record 9 16 Error Log Record 10 17 Instrument Identification Report 18 Power Management and Battery Status 19 Persistent Time Sense Report 20 Reset to Factory Defaults 21 Cluster Instrument Number CIN Adjustment 23 Enable Disable Alarm Silence Reminder 24 Pressure Calculation Algorithm Selection 29 Compatibility Report 30 Pressure Transducer Accuracy Test Mode 31 Inflation Ti...

Page 40: ...t Mode This test verifies that indicators and front panel lamps are functional 1 From the service mode steady state select menu item 2 by pressing the UP or DOWN ARROW buttons until 2 appears in the SYSTOLIC display Press the UPPER ALARM LIMIT button 2 Initially all indicators will light Press and hold the UP ARROW button to light each display segment decimal and indicator in a sequential scanning...

Page 41: ...LARM SILENCE simultaneously 8 STAT 9 START STOP 10 PRINT 11 NEW PATIENT NEONATAL rear panel 12 Any combination not listed 13 UPPER and LOWER ALARM LIMIT simultaneously 14 UPPER and LOWER ALARM LIMIT and PRINT simultaneously 15 3 Press the UP or DOWN ARROW button to return to the service mode steady state 4 3 4 Menu Item 4 Speaker Test Mode This menu item verifies that the volume control is functio...

Page 42: ...ess the UPPER ALARM LIMIT button to save the value as the default 3 Press the LOWER ALARM LIMIT button to return to the service mode steady state 4 3 6 Menu Item 6 Total Operating Hours Report This report displays the total number of operating hours logged by the UIF PCB since it was produced From the service mode select menu item 6 by pressing the UP or DOWN ARROW buttons until 6 appears in the S...

Page 43: ...nal label was not changed 1 From the service mode select menu item 17 by pressing the UP or DOWN ARROW buttons Press the UPPER ALARM LIMIT button A hexadecimal number should appear across the entire monitor display field with an H in the last far right position 2 Verify that this number agrees with the number on the monitor s external label If the numbers do not agree contact Nellcor Puritan Benne...

Page 44: ...rify that the N 3100 emits three short beeps to indicate that the default settings have been successfully reset to the factory default values Any alarm limit that was set to a value other than the factory default is now lost The N 3100 automatically exits the menu item and returns to the service mode If the reset is successful the monitor will beep If the reset was not successful an error code wil...

Page 45: ...etting 1 raw 2 adjusted in the DIASTOLIC display If the displayed value is different from the power on value the displayed value will flash 3 To change the pressure calculation algorithm setting press the UP or DOWN ARROW button until the desired setting is displayed 4 Press the UPPER ALARM LIMIT button to store the displayed value as the power on default 5 Press the LOWER ALARM LIMIT button to re...

Page 46: ...o digits preceding the decimal point are the version and the number following the decimal point is the revision 3 Press the LOWER ALARM LIMIT button to return to the service mode steady state 4 3 16 Menu Item 30 Pressure Transducer Accuracy Test Mode Note Menu items 30 through 36 are discussed in the Performance Verification section paragraph 3 3 2 Verification of Pneumatic System Refer to those p...

Page 47: ...mHg The current chamber pressure in mmHg is displayed in the DIASTOLIC display 5 At the end of the test cycle the chamber depressurizes and the SYSTOLIC display indicates submenu item number 31 0 The DIASTOLIC display indicates the time in seconds to the nearest tenth required to pressurize to 250 mmHg 6 Press the UP ARROW button The number 31 1 is displayed in the SYSTOLIC display The DIASTOLIC d...

Page 48: ...c system in the adult mode A 220 cm3 test chamber is required 1 Connect the 220 cm3 test chamber to the hose connector on the right side panel of the N 3100 2 From the service mode steady state press the UP or DOWN ARROW buttons until menu item 33 is displayed in the SYSTOLIC display 3 Press and release the UPPER ALARM LIMIT button 4 Press and release the START STOP button The chamber begins to pr...

Page 49: ...s displayed in the SYSTOLIC display 4 Press and release the UPPER ALARM LIMIT button 5 Press and release the START STOP button The chamber begins to pressurize to approximately 300 mmHg The current chamber pressure in mmHg is displayed in the DIASTOLIC display 6 Manually increase the pressure until the pressure relief valve opens This normally should happen before the pressure reaches 331 mmHg 7 T...

Page 50: ...ayed in the SYSTOLIC display and the resulting error from the self test will be displayed in the DIASTOLIC field 0 no error 1 RAM error 2 ROM error 4 Press the UP ARROW button to display 37 1 in the SYSTOLIC display 5 The left and middle characters of the DIASTOLIC display will be the year and the right character with the left character of the MEAN PULSE RATE display will be the month of the progr...

Page 51: ...at The third digit will be H 12 Press the UP ARROW button to display 37 5 in the SYSTOLIC display 13 The first two digits of the DIASTOLIC display will be the seventh byte of the version in hexadecimal format The third digit will be H 14 Press the LOWER ALARM LIMIT button to return to the service mode steady state Caution Menu items 70 and above are for factory purposes only Adjustment of menu ite...

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Page 53: ... 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 Puritan Bennett s Technical Services Department or your local Nellcor Puritan Bennett representative 5 4 REPLACEMENT LEVEL SUPPORTED The replacement level supported for this product is limited to the printe...

Page 54: ...echnical Services Department or your local Nellcor Puritan Bennett representative Table 5 1 Problem Categories Problem Area Refer to Paragraph 1 AC Power No power up Fails power on self test 5 6 1 2 Error Codes 5 6 2 3 Buttons Monitor does not respond properly to buttons when pressed 5 6 3 4 Display Alarms Displays do not respond properly Alarms or other tones do not sound properly or are generate...

Page 55: ...the N 3100 is powered by an SPS external power supply and the green power supply POWER AVAILABLE indicator is lit ensure that the power supply is properly plugged into the N 3100 3 If the N 3100 is stacked with the N 3200 ensure that the N 3200 is plugged into an operational AC outlet If it is and the N 3200 POWER ON indicator is not lit troubleshoot the N 3200 4 If the N 3100 is stacked with the ...

Page 56: ...Recommended Action 055 Alarm limits and other settings have been returned to power on defaults Press UPPER or LOWER ALARM LIMIT button as needed and if necessary set alarm limits alarm volume audible alarm silence duration and operating mode to the desired value 058 Alarm silence duration and alarm volume have been returned to power on defaults Press the ALARM SILENCE button If necessary check and...

Page 57: ...ear when a successful measurement is taken 5 6 2 2 Failure Error Codes Failure error codes are displayed by the monitor with a leading digit of 1 These codes may be cleared only by turning the monitor off and then on again Table 5 4 lists the possible failure error codes and the recommended action to take Refer to Appendix A2 for a more detailed explanation of the codes Table 5 4 N 3100 Failure Er...

Page 58: ...ndicator is not lit turn all units in the stack off and then on again 178 191 1 Turn the monitor off then on again 2 If the error code still appears use the service mode to reset the institutional default values to factory default values as discussed in Section 4 Configuration and Service Modes Paragraph 4 3 11 menu item 20 3 If the error code still appears turn off the monitor and replace the UIF...

Page 59: ...problems relating to nonfunctioning displays audible tones or alarms and recommended actions If the action requires replacement of a PCB or module refer to Section 6 Disassembly Guide Table 5 6 Display Alarms Problems Condition Recommended Action 1 Display values are missing or erratic 1 Replace the Display PCB 2 If the condition still persists replace the UIF PCB 2 Display segments do not light 1...

Page 60: ...s symptoms and recommended actions for problems encountered while in the stacked configuration Refer to the N 3000 or the N 3200 service manual for more troubleshooting information Table 5 8 Stack Problems Condition Recommended Action 1 While stacked with N 3000 only BATTERY IN USE BATTERY LOW indicators on the N 3000 and N 3100 light steadily while they are connected to AC Both units are operatio...

Page 61: ...N 3000 and or N 3200 and N 3100 do not operate when disconnected from the external power supply 1 The N 3000 or N 3200 battery may be discharged To recharge the battery keep the N 3000 connected to its external power supply or connect the N 3200 to AC power Confirm that the BATTERY CHARGING indicator lights The battery will be fully charged when after powering the unit off and then on again the BA...

Page 62: ...e that a good docking connection exists between the N 3100 and the N 3000 the N 3200 or both 2 Check that an SPS power supply connected to the N 3100 is functioning properly or that AC power connected to the N 3200 is correct 9 The AUDIBLE ALARM SILENCE button and knob on an N 3000 stacked with the N 3100 have no effect on the N 3100 Earlier N 3000 versions do not have the ability to communicate p...

Page 63: ... is removed while disassembling the monitor do not connect the SPS Power Supply to the monitor while the power supply is plugged into AC power Instead first connect the power supply to the monitor then connect the power supply to AC power Failure to do so may result in damage to the monitor Note Some spare parts have a business reply card attached When you receive these spare parts please fill out...

Page 64: ...ttom cover 6 3 MONITOR DISASSEMBLY 1 Place the N 3100 in the standby mode by pressing the ON STANDBY button 2 Disconnect the unit from the SPS power supply If operating in the stacked configuration remove the monitor from the stack 3 Set the N 3100 upside down facing you 4 Remove the four corner screws that hold the unit together Figure 6 2 Screws Screws Figure 6 2 N 3100 Corner Screws ...

Page 65: ...ated in Figure 6 3 Handle Left panel Bottom enclosure Pump hose ON STBY button Piezo assembly UIF board Lower docking connector ribbon Blood Pressure module ribbon connector Right panel Figure 6 3 Separating the Monitor and Disconnecting the Cables 6 3 1 Replacing the Piezo Speaker To replace the Piezo speaker 1 Disconnect the Piezo assembly wires from the UIF board 2 Unsnap the speaker from the f...

Page 66: ... the UIF board and carefully pulling on the ribbon cable 2 Disconnect the speaker connector from the UIF board 3 Loosen the two screws securing the monitor speaker assembly to the right side panel as illustrated in Figure 6 4 Pump assembly Speaker assembly Hose fitting Loctite Figure 6 4 Removing the Monitor Speaker Assembly 4 Remove the speaker from the molded housing 5 Install a new speaker 6 Ti...

Page 67: ...ndicated in Figure 6 4 to avoid crimping when the monitor is reassembled Connect the hose to the fitting 6 3 4 Removing the UIF Board When replacing the UIF PCB ensure that the Instrument Identification on the bottom of the unit see Figure 6 2 is replaced with the one provided with the replacement PCB To remove the UIF board 1 Disassemble the monitor as indicated in paragraph 6 3 and 6 3 2 steps 1...

Page 68: ...ont lens loosen the five screws securing the UIF board first then lift the cover up and away from the chassis UIF board Lithium batteries Display board Rear panel Front lens Button set Top docking connector Top enclosure J3 Figure 6 5 Removing UIF and Display PCBs ...

Page 69: ...e Pump Module To remove the pump module 1 Remove the four screws securing the module to the bottom enclosure as shown in Figure 6 6 Bottom enclosure Pump assembly Blood pressure PCB Lower docking connector Pump bracket Figure 6 6 Removing Pump Module ...

Page 70: ...an Bennet s Technical Services Department for disposal 7 Replace batteries observing correct polarity positive terminal up 8 Reassemble chassis 6 5 REASSEMBLY Reassemble the monitor by performing the disassembly steps in reverse order 1 Ensure that all plastic isolation shields are reinstalled correctly 2 Ensure that the small copper wiper fingers that make contact with the side panel metalized co...

Page 71: ...ending upon the level of repairs you may have to reconfigure the monitor s Internal Configuration Code ICC in order to get the monitor to operate properly Reconfiguration is performed using menu item 20 of the service mode Refer to Section 4 Configuration and Service Mode ...

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Page 73: ...king connector PCB 14 Hose fitting 15 Right panel 16 Speaker assembly 17 Lithium batteries 18 Piezo speaker 19 Rear panel 20 Torsion spring 21 Battery cover 22 Proximity switch 23 Blood pressure module 24 Pump bracket Power supply International SPS I1 Power supply North American SPS N1 NPC I Hospital grade power cord International NPC I Hospital grade power cord North American Part Number 030375 0...

Page 74: ...IF PCB 8 Display PCB 7 Front lens 10 Blood Pressure module 23 Proximity switch 22 Pump bracket 24 Rear panel 19 Battery cover 21 Torsion spring 20 Peizo speaker 18 Lithium batteries 17 Right panel 15 Speaker assembly 16 Connector cover 11 Top enclosure 12 Control buttons 9 Upper docking connector PCB 13 Hose fitting 14 Figure 7 1 N 3100 Expanded View ...

Page 75: ... by the Nellcor Puritan Bennett warranty If the original shipping carton is not available use another suitable carton North American customers may call Nellcor Puritan Bennett s Technical Services Department to obtain a shipping carton Prior to shipping the monitor contact your supplier or the local Nellcor Puriatn Bennett office Technical Service Department for a returned goods authorization RGA ...

Page 76: ... 8 1 Figure 8 1 Repacking the N 3100 1 Place the monitor and if necessary accessory items in the original packaging Note Additional packing materials will be needed around loose accessory items 2 Place in the shipping carton and seal the carton with packaging tape 3 Label the carton with the shipping address return address and RGA number if applicable ...

Page 77: ...pping carton with at least 200 pounds per square inch psi bursting strength 3 Fill 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 ...

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Page 79: ...hygmomanometers when tested in the supine position 9 2 ELECTRICAL Protection Class Class I when connected to N 3000 per I E C 601 1 clause 2 2 4 Degree of Protection Type CF per I E C 601 1 clause 2 2 26 Input Voltage 15 DC Fuse 0 8A 250V External Power Supply Model SPS I or SPS I1 AC input 100 240V 500 mA maximum 50 60 Hz Model SPS N or SPS N1 AC input 100 120 VAC 500 mA maximum 50 60 Hz 9 3 PHYS...

Page 80: ...Blood Pressure Upper Limit 240 mmHg 120 mmHg Systolic Blood Pressure Lower Limit 70 mmHg 50 mmHg Diastolic Blood Pressure Upper Limit 210 mmHg 80 mmHg Diastolic Blood Pressure Lower Limit 50 mmHg 30 mmHg Mean Blood Pressure Upper Limit 225 mmHg 95 mmHg Mean Blood Pressure Lower Limit 55 mmHg 45 mmHg Pulse Rate Upper Limit 170 bpm 230 bpm Pulse Rate Lower Limit 40 bpm 40 bpm Other Factory Default S...

Page 81: ... range will be displayed while the N 3100 is inflating and deflating the cuff When the cuff pressure is within this range the pressure indicated by the N 3100 is within 3 mmHg or 2 whichever is greater of the actual cuff pressure Note Accuracy is not specified for displayed values outside of the stated ranges Neonatal Pulse Rate Accuracy Displayed pulse rate in the range of 40 240 bpm are accurate...

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Page 83: ...lf Test and Watchdog The POST tests and verifies microprocessor memory display speaker communications time sense device control logic and blood pressure module hardware The watchdog circuit monitors the operational status of the microprocessor Background Test Background tests periodically run during normal operation and check the memory integrity and microprocessor operation Internal communication...

Page 84: ...s The error cannot be logged because the Error Log portion of the EEPROM has failed or internal communications to the Error Log cannot be established 3 Failure error at the end of initialization or during steady state operation An EEExxx code representing the failure is displayed a low priority alarm sound is produced and a failure type error entry is made in the Error Log 4 Internally corrected e...

Page 85: ...dary backup lithium batteries located on the UIF board In all cases an attempt to store an error in the Error Log may fail due to failure or corruption of the Error Log in EEPROM This condition alone does not constitute a failure error and operation of the instrument proceeds as if the error has been successfully logged A3 USER CORRECTABLE ERROR CODES The following error codes are user correctable...

Page 86: ...5 A persistent communication failure has been detected 176 A persistent communication failure has been detected 177 Communication between stacked instruments has failed 178 An EEPROM memory corruption has been detected 179 Internal tests indicate an invalid program configuration 183 Module reset occurred while in configuration or service mode 189 Internal component failure on UIF PCB 191 An EEPROM...

Page 87: ...uring initialization or a logic error resulting from a low probability combination of events 126 Temporary program memory has been exceeded stack 150 A program task has been found to be over or under dispatched 151 An illogical state or result has occurred that is likely to have been caused by working memory corruption or other device malfunction 152 A program memory corruption has been detected 1...

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Page 89: ...ole The oscillometric technique uses a pressure transducer and electronic data processing to determine systolic mean and diastolic pressures A motorized pump inflates the cuff to approximately 180 mmHg 120 mmHg for neonatal patients initially The N 3100 then deflates cuff pressure gradually A pressure transducer detects air pressure and sends a signal to the measurement circuits As pressure in the...

Page 90: ... and two sockets on the N 3100 upper docking connector As with the internal communication bus the Arcnet local area network standard is used as the protocol RS 485 drivers and receivers are used for signaling A proximity sensor on the N 3100 UIF PCB detects when the N 3000 is docked which enables the internal communication bus signals Access to the Stackbus is accomplished through token passing A ...

Page 91: ...ecovery and the addition of new stations is implemented in the N 3000 s UIF Gateway and SpO2 modules and in the N 3100 by the Arcnet S4 CIRCUIT ANALYSIS This section provides a descriptive overview of the N 3100 modular design as well as a detailed circuit analysis S4 1 FUNCTIONAL OVERVIEW The monitor functional block diagram is shown in Figure S4 1 ...

Page 92: ...Button POWER Hardwired to Power Supply 7219 MAXIM 7219 MAXIM MAP DIA SYS Sensorbus Batt Bus Lithium Battery x2 Charge Bus Switched Power Power Cutoff 10 5 5 6 Tx Data Rx Data CTS Colin Reset RTS Power Conditioning ARCNET Controller COM20020 16C54 Key Matrix to SPI Controller INT Serial Communications Link LED shift registers and drivers A D Charge Bus Up Arrow Down Arrow Lower Limit Power Fail Ala...

Page 93: ...d is U3 a Motorola MC68HC16Z1 IC also referred to as the HC16 This microprocessor uses a 16 bit CPU and contains several submodules including A D converters pulse width modulators internal RAM and a queued serial module The microprocessor also contains a non multiplexed data address bus and input output timer pins A synthesized clock signal is produced using the signal from Y2 a 32 768 kHz crystal...

Page 94: ...variable memory U13 trend memory U4 serial EEPROM U7 real time clock U12 Arcnet controller U8 digital to analog converter U5 power on reset watchdog timer U21 and the display buttons Program memory U10 contains the program code in a 512K x 16 EPROM The UIF uses chip select CSBOOT to select the EPROM Data and variable memory U13 uses a scratchpad memory to retain variables and data during operation...

Page 95: ...lts to the pump valves and the 10 5 volts that power the analog circuits and dump valves in the Blood Pressure module Power on off A latch composed of two gates of CMOS U20 controls the power on FET The input voltage is filtered and reduced by CR15 to approximately 9 5 volts when the unit is on and approximately 9 8 volts when the unit is off Switch U19 controls the destination of the front panel ...

Page 96: ... UIF connectors and provides tables that detail connector pin outs J1 is a 20 pin connector that interfaces the UIF Power Supply PCB to the Blood Pressure module A ribbon cable is attached from J1 to the Blood Pressure module Table S4 1 J1 Connector Pin No Pin Description Input Output Power 1 Transmit data to Blood Pressure module TXD Output 2 Receive data from Blood Pressure module RXD Input 3 Re...

Page 97: ...al speaker signal Input Output S4 2 2 Blood Pressure Module The Blood Pressure module uses the Colin model 1500 blood pressure module It consists of main CPU U2 for measuring blood pressure and sub CPU U14 for monitoring the pressure and measuring time The pressure signal detected by HIC pressure sensor PM1 is calibrated to approximately 10mv mmHg by gain amplifier U12 The signal output is convert...

Page 98: ...play for the monitor The display board is connected to and controlled by the UIF The Display board block diagram is shown in Figure S4 4 Systolic Diastolic Mean Digital Displays Display Driver Buttons Indicators Audible Alarm Off Cycle Pulse Rate Manual Auto Printer Available Neonatal Battery In Use Printer In Use Stacked On Standby On Standby Display Board UIF Synchronous Serial Interface On Off ...

Page 99: ...ts a serial communication link it has no other control over the communications The J1 connector pin outs are as follows 1 5V power for display drivers 2 5V power for display drivers 3 Enable for PIC microprocessor 4 Serial clock to display drivers 5 Load data to display drivers 6 Serial data to display drivers 7 N C 8 Audible alarm off 9 ON Standby button signal 10 N C 11 PIC Interrupt 12 5 volts ...

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