Nellcor SYMPHONY N-3100 Service Manual
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Nellcor SYMPHONY N-3100 Service Manual

Nellcor SYMPHONY N-3100 Service Manual

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SERVICE MANUAL
NELLCOR SYMPHONY
®
N-3100 Blood Pressure Monitor
To contact Nellcor Puritan Bennett's representative: In the United States, call 1-800-NELLCOR or 510 463-4000; 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

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  • Page 1 ® N-3100 Blood Pressure Monitor To contact Nellcor Puritan Bennett’s representative: In the United States, call 1-800-NELLCOR or 510 463-4000; 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.
  • Page 2 02200 Espoo Finland Tel. +358.90.270.92.900 To obtain information about a warranty, if any, for this product, contact Nellcor Puritan Bennett’s Technical Services Department or your local Nellcor Puritan Bennett representative. NELLCOR SYMPHONY and the Nellcor knob configuration are trademarks of Nellcor...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS List of Figures List of Tables Section 1: Introduction ................Manual Overview................Warnings, Cautions, and Notes............ 1.2.1 Warning................1.2.2 Caution ................1.2.3 Note ................. N-3100 Blood Pressure Monitor Description ........ Related Documents ..............Section 2: Routine Maintenance ..............Cleaning ..................
  • Page 4 Table of Contents Section 4: Configuration and Service Modes ........... Introduction................... Configuration Mode ..............4.2.1 Adult-Pediatric/Neonatal Mode Default ......4.2.2 Systolic Upper Alarm Limit ..........4.2.3 Systolic Lower Alarm Limit ..........4.2.4 Diastolic Upper Alarm Limit ..........4.2.5 Diastolic Lower Alarm Limit ..........4.2.6 Mean Upper Alarm Limit ..........
  • Page 5 Table of Contents Section 5: Troubleshooting ................ Introduction................... How to Use this Section ............... Who Should Perform Repairs............Replacement Level Supported ............. Obtaining Replacement Parts ............Troubleshooting Guide ..............5.6.1 AC Power ................ 5.6.2 Error Codes ..............5.6.2.1 User-Correctable Error Codes ........5.6.2.2 Failure Error Codes............
  • Page 6 Table of Contents Technical Supplement ................Introduction................... Overview ..................Stackbus Interconnect ..............Circuit Analysis ................S4.1 Functional Overview ............S4.2 Detailed Circuit Analysis ..........S4.2.1 UIF/Power Supply Module ..........S4.2.2 Blood Pressure Module ........... S4.2.3 Display Board..............S-10 Schematic Diagrams ..............S-11 LIST OF FIGURES N-3100 Front Panel (North American) ..........

  • Page 7: Section 1: Introduction

    N-3100 Blood Pressure Monitor Description Related Documents MANUAL OVERVIEW This manual contains information for servicing the NELLCOR SYMPHONY N-3100 blood pressure monitor. Only qualified service personnel should service this product. Before servicing the N-3100, read the operator’s manual carefully for a thorough understanding of operation.

  • Page 8: Related Documents

    Refer to the N-3100 operator’s manual. To understand the various Nellcor Puritan Bennett cuffs and hose that work with the monitor, refer to the individual cuff and hose directions for use.

  • Page 9: Section 2: Routine Maintenance

    Verify that the monitor performs properly as described in paragraph 3.3. Perform the electrical safety tests detailed in paragraph 3.4. If the unit fails these electrical safety tests, do not attempt to repair, contact Nellcor Puritan Bennett’s Technical Services Department or your local Nellcor Puritan Bennett representative.

  • Page 11: Section 3: Performance Verification

    SECTION 3: PERFORMANCE VERIFICATION Introduction Equipment Needed Performance Tests Safety Tests INTRODUCTION This section discusses the tests used to verify performance of the monitor. All tests are accomplished through the control panel. EQUIPMENT NEEDED Equipment Description AC Power Adapter SPS-I or SPS-I1 (International) or SPS-N or SPS-N1 (North American) Electrical Safety Analyzer Must meet current AAMI...

  • Page 12: Self-Test Display

    Section 3: Performance Verification Observe the monitor front panel. With the N-3100 in STANDBY (turned off), press the ON/STANDBY button. In order to successfully complete the self-test, the monitor must perform the following sequence. The monitor emits three consecutively higher-pitched beeps. All indicators light momentarily as illustrated in Figure 3-1.

  • Page 13: Power-On Defaults For Adult-Pediatric Alarm Limits And Ranges

    The following procedures use the N-3100 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.
  • Page 14 Section 3: Performance Verification From the normal mode steady state, press and release the UPPER ALARM LIMIT button. Press and hold the DOWN ARROW button until a value of “70.” is shown in the SYSTOLIC display. Note: A period (“.”) following a displayed alarm limit value is an indication that the alarm limit value has been changed from the power-on default value previously set in the N-3100.
  • Page 15 Section 3: Performance Verification 11. From the normal mode steady state, press and release the UPPER ALARM LIMIT button three times. Verify that the monitor emits a single beep each time you press the button. Verify that the MEAN/PULSE RATE display indicates an alarm limit value of “225” for a few seconds and verify that the other displays show dashes at the top while the “225”...
  • Page 16 Section 3: Performance Verification 21. Press the ON/STANDBY button to turn the monitor off. Verify that the monitor emits three consecutively lower-pitched beeps. 22. Press the ON/STANDBY button to turn the monitor on. The monitor performs the Power-On Self-Test described in 3.3.1.1, steps 3a. through 3g.

  • Page 17: Power-On Defaults For Neonatal Alarm Limits And Ranges

    The following procedures use the N-3100 UP and DOWN ARROW buttons located on the top of the monitor. When the N-3100 is stacked with the N-3000, the Nellcor knob on this unit can be used to perform the function of the N-3100 UP and DOWN ARROW buttons.
  • Page 18 Section 3: Performance Verification From the normal mode steady state, press and release the LOWER ALARM LIMIT button. Within 3 seconds, press and hold the DOWN ARROW button until “40.” is displayed in the SYSTOLIC display. Verify that “40.” is the lowest value to which the lower alarm limit can be adjusted.
  • Page 19 Section 3: Performance Verification 14. From the normal mode steady state, press the LOWER ALARM LIMIT button three times. Within 3 seconds, press and hold the DOWN ARROW button until “35.” is displayed in the MEAN/PULSE RATE display. Verify that “35.” is the lowest value to which the lower alarm limit can be adjusted.

  • Page 20: Verification Of Pneumatic System

    Section 3: Performance Verification 25. From the normal mode steady state, rapidly press the UPPER ALARM LIMIT button twice. Verify that the monitor emits two beeps and that the DIASTOLIC display indicates an alarm limit of “80” for a few seconds.
  • Page 21 Section 3: Performance Verification These tests can be performed individually (in any order) or sequentially. However, all of the tests must be performed to verify the pneumatic system functionality. Prior to performing any of these tests, perform the following setup procedure. If these tests are performed in sequence, this procedure needs to be performed once prior to the first test.
  • Page 22 Section 3: Performance Verification 3.3.2.2 Pneumatic Leakage—Adult The pneumatic leakage test verifies the integrity of the pneumatic system in the adult mode. Prior to performing this procedure, the setup procedure in paragraph 3.3.2 must be completed. Press the UP/DOWN ARROW buttons until menu item 33 is displayed in the SYSTOLIC display.
  • Page 23 Section 3: Performance Verification 3.3.2.4 Cuff Inflation Rate The cuff inflation rate test verifies the inflation rate of the N-3100. Prior to performing this procedure, the setup procedure in paragraph 3.3.2 must be completed. Press the UP/DOWN ARROW buttons until menu item “31” is displayed in the SYSTOLIC display.
  • Page 24 Section 3: Performance Verification Press the UP ARROW button to display menu item 32.3 in the SYSTOLIC display. The DIASTOLIC display indicates the rate in mmHg per second, to the nearest tenth, required to depressurize from 60 to 30 mmHg. A reading of 2.6–4.4 seconds indicates successful completion of the test.

  • Page 25: Pulse Rate Accuracy Tests

    Section 3: Performance Verification The test is complete when the pressure has increased, deflated, and the MANUAL indicator turns off. The SYSTOLIC display indicates menu item 36. A nonflashing DIASTOLIC display indicates the maximum pressure achieved. If the high-pressure relief valve does not open, the DIASTOLIC display flashes. A reading of 165 mmHg or less indicates successful completion of the test.

  • Page 26: Pulse Rate Accuracy Test-Neonate

    Section 3: Performance Verification 3.3.3.2 Pulse Rate Accuracy Test—Neonate This test verifies the functionality of the pulse rate detection in the neonate mode. 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”...

  • Page 27: Electrical Leakage

    Section 3: Performance Verification Connect the monitor’s AC plug to the analyzer as recommended in the analyzer operating instructions. Connect the analyzer resistance input lead to the equipotential terminal (grounding stud) on the external power supply. Verify that the analyzer indicates 150 milliohms or less.

  • Page 28: Patient Leakage Current (Moap)

    Section 3: Performance Verification 3.4.2.2 Patient Leakage Current This test is in compliance with AAMI Standard ES1, paragraph 3.3.2 and IEC 601-1. Patient Leakage Current is measured between any individual patient connection and power (earth) ground. Configure the electrical safety analyzer as follows: Function: Patient Leakage µA...

  • Page 29: Patient Leakage Current Test Configurations

    Section 3: Performance Verification Connect the monitor AC plug to the electrical safety analyzer as recommended by the operating instructions for patient sink (leakage) current. Connect the electrical safety analyzer patient leakage input lead to the patient connector on the monitor's sensor input. The equipotential terminal is not connected to ground.

  • Page 31: Section 4: Configuration And Service Modes

    N-3100. 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.

  • Page 32: Systolic Upper Alarm Limit

    Section 4: Configuration and Service Modes Note: While changing limits, there must be some user interaction with the monitor within a 3-second period or the monitor returns to configuration mode steady state operation. Table 4-1 lists the default settings that can be configured and the respective buttons to press to access the settings.
  • Page 33 Section 4: Configuration and Service Modes 4.2.1 Adult-Pediatric/Neonatal Mode Default The operating mode that the monitor is in when you exit the configuration mode (adult-pediatric or neonatal), becomes the power-on default operating mode. 4.2.2 Systolic Upper Alarm Limit From configuration mode steady state, press the UPPER ALARM LIMIT button once.
  • Page 34 Section 4: Configuration and Service Modes 4.2.6 Mean Upper Alarm Limit From configuration mode steady state, press the UPPER ALARM LIMIT button three times. The current default value is displayed in the MEAN/PULSE RATE display. To change the upper alarm limit value, press and hold the UP or DOWN ARROW button on top of the monitor.

  • Page 35: Alarm Volume

    Section 4: Configuration and Service Modes 4.2.10 Alarm Volume Use the following procedure to adjust the alarm volume default: From the configuration mode steady state, press and hold the ALARM SILENCE button for approximately 3 seconds. A continuous tone at the current volume setting is emitted.
  • Page 36 Section 4: Configuration and Service Modes 4.2.13 Configuration Menu Entering the configuration menu steady state from the configuration mode steady state, allows you to view the UIF software version, enable/disable the measurement complete tone, or reset to factory power-on defaults. To return to the configuration mode steady state from the configuration menu steady state, while in the configuration mode steady state, press the LOWER ALARM LIMIT button.

  • Page 37: Service Mode

    Section 4: Configuration and Service Modes SERVICE MODE The service mode allows a service technician to select menu items that set up the N-3100 to perform tests that determine monitor functionality. The service mode also allows access to the error log report. Caution: Menu items 70 and above are for factory purposes only.
  • Page 38 Section 4: Configuration and Service Modes When you have scrolled to the desired menu item, press the UPPER ALARM LIMIT button. The PULSE RATE indicator lights. This indicates that you are now in a submenu level of the selected menu item.

  • Page 39: Service Mode Menu

    Section 4: Configuration and Service Modes Table 4-2: Service Mode Menu Menu Type of Report/Test Software Version Report Lamp Test Mode Button Test Mode Speaker Test Mode Internal Configuration Code Report Total Operating Hours Report Error Log Record 1 Error Log Record 2 Error Log Record 3 Error Log Record 4 Error Log Record 5...

  • Page 40: Menu Item 1: Software Version Report

    Section 4: Configuration and Service Modes 4.3.1 Menu Item 1: Software Version Report This report identifies the software versions of the UIF PCB and blood pressure module. From the service mode steady state, select menu item 1 by pressing the UP or DOWN ARROW buttons until “1”...

  • Page 41: Menu Item 4: Speaker Test Mode

    Section 4: Configuration and Service Modes Press each of the buttons and button combinations listed below. The corresponding number should appear in the DIASTOLIC display to indicate that these keys and key combinations are functioning correctly. Press the following button and/or Displayed button combinations: number:...

  • Page 42: Menu Item 5: Internal Configuration Code (Icc) Report

    Section 4: Configuration and Service Modes Press the UP ARROW button. As the number in the DIASTOLIC display increases to a maximum of 254, the volume should correspondingly increase. Press the DOWN ARROW button to decrease the volume. Press the LOWER ALARM LIMIT button to return to the service mode steady state.

  • Page 43: Menu Item 17: Instrument Identification (Iid) Report

    H in the last (far right) position. Verify that this number agrees with the number on the monitor’s external label. If the numbers do not agree, contact Nellcor Puritan Bennett’s Technical Services Department or your local Nellcor Puritan Bennett representative.

  • Page 44: Menu Item 19: Persistent Time Sense Report

    4.3.11 Menu Item 20: Reset to Factory Defaults This function allows the service technician to reset the monitor to the Nellcor factory default settings (see the Specifications section of this manual). From the service mode steady state, select menu item 20 by pressing the UP or DOWN ARROW buttons.

  • Page 45: Menu Item 23: Enable/Disable Alarm Silence Reminder

    Section 4: Configuration and Service Modes 4.3.13 Menu Item 23: Enable/Disable Alarm Silence Reminder This function allows the service technician to disable or enable the Alarm Silence Reminder feature. From the service mode steady state, select menu item 23 by pressing the UP or DOWN ARROW buttons.

  • Page 46: Menu Item 29: Instrument Compatibility Report

    Section 4: Configuration and Service Modes Europe, the South Pacific and other parts of Asia, pressure calculation algorithm 2 (adjusted) is selected. The pressure calculation algorithm should be selected to be consistent with practices used in the country or institution where the N-3100 is to be used.

  • Page 47: Menu Item 31: Inflation Time Test Mode

    Section 4: Configuration and Service Modes Using the air bleed on the hand pump, manually depressurize the system, comparing the manometer readings to the N-3100 displayed values. Manually stop the test with the START/STOP button. Note: If the test is not manually stopped within 10 minutes, the N-3100 will automatically stop the test.

  • Page 48: Menu Item 33: Adult Leak Test Mode

    Section 4: Configuration and Service Modes At the end of the test cycle, the chamber depressurizes and the SYSTOLIC display indicates submenu item number 32.0. The DIASTOLIC display indicates the rate in mmHg per second, to the nearest tenth, required to depressurize from 260 to 180 mmHg. Using the UP ARROW button, go to menu item 32.1 in the SYSTOLIC display.

  • Page 49: Menu Item 35: Adult Maximum Pump Pressure Test Mode

    Section 4: Configuration and Service Modes Press and release the START/STOP button. The chamber begins to pressurize to approximately 150 mmHg. The current pressure reading will be displayed until the test is completed. Approximately four minutes later, the chamber will depressurize. The SYSTOLIC display indicates menu item “34.0.”...

  • Page 50: Menu Item 37: Blood Pressure Module Self-Check Report

    Section 4: Configuration and Service Modes Press and release the START/STOP button. The chamber begins to pressurize to approximately 150 mmHg. The current chamber pressure in mmHg is displayed in the DIASTOLIC display. Manually increase the pressure until the pressure relief valve opens. This normally should happen before the pressure reaches 171 mmHg.
  • Page 51 Section 4: Configuration and Service Modes 11. The first two digits of the DIASTOLIC display will be the fifth byte of the version in hexadecimal format. The third digit will be “H.” The first two digits of the MEAN/PULSE RATE display will be the sixth byte of the version in hexadecimal format.

  • Page 53: Section 5: Troubleshooting

    OBTAINING REPLACEMENT PARTS Nellcor Puritan Bennett Technical Services provides technical assistance information and replacement parts. To obtain replacement parts, contact Nellcor Puritan Bennett. Refer to parts by the part names and part numbers listed in Section 7, Spare Parts. 5- 1...

  • Page 54: Troubleshooting Guide

    Taking the recommended actions discussed in this section will correct the majority of problems you will encounter. However, problems not covered here can be resolved by contacting Nellcor Puritan Bennett’s Technical Services Department or your local Nellcor Puritan Bennett representative...

  • Page 55: Power Problems

    Section 5: Troubleshooting 5.6.1 AC Power Most AC power problems result in one of two symptoms. Either there is no response when the ON/STANDBY button is pressed, or the microprocessor failure alarm sounds. If the microprocessor failure alarm sounds and an error code is displayed, refer to paragraph 5.6.2.

  • Page 56: N-3100 User-Correctable Error Codes

    Section 5: Troubleshooting 5.6.2 Error Codes When there is a problem within the N-3100 monitor, an error code may be displayed on the front panel, as illustrated: mmHg mmHg These codes correspond to messages that indicate what part of the monitor is at fault.

  • Page 57: N-3100 Failure Error Codes

    Section 5: Troubleshooting Table 5-3: N-3100 User-Correctable Error Codes (Cont.) The N -3100 has received Let the current operation proceed. more button pushes than it can retain while it processes the current operation. Blood pressure test failed. Check cuff connections. Check cuff This code only displayed in application and orientation.

  • Page 58: N-3100 Failure Error Codes

    2. Verify compatibility of software as discussed in Section 4, Configuration and Service Modes (paragraph 4.3.15, menu item 29). 3. If the error code still appears, verify compatibility of the ROMs by calling Nellcor Puritan Bennett’s Technical Services Department or your local Nellcor Puritan Bennett representative.

  • Page 59: Button Problems

    Section 5: Troubleshooting 5.6.3 Buttons Table 5-5 lists symptoms of problems relating to nonresponsive buttons and provides recommended actions. If the action requires replacement of a PCB, refer to Section 6, Disassembly Guide. Table 5-5: Button Problems Condition Recommended Action 1.

  • Page 60: Operational Performance Problems

    Section 5: Troubleshooting 5.6.5 Operational Performance Table 5-7 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 Section 6, Disassembly Guide. Table 5-7: Operational Performance Problems Condition Recommended Action 1.
  • Page 61 Section 5: Troubleshooting Table 5-8: Stack Problems (Cont.) 1. Ensure that a good docking connection 3. BATTERY IN USE/ exists between the N-3000 and N-3100. BATTERY LOW indicators on the N-3000 2. Check the N-3000 fuse. Replace if light steadily but do not necessary as indicated in the Disassembly on the N-3100 and Guide section of the N-3000 service...
  • Page 62 N-3000 N-3100. After ensuring that a good docking stacked with the N-3100 connection exists, contact Nellcor Puritan have no effect on the Bennett’s Technical Services Department or N-3100. your local Nellcor Puritant Bennett representative for information on retrofitting the N-3000.

  • Page 63: Section 6: Disassembly Guide

    SECTION 6: DISASSEMBLY GUIDE Introduction Fuse Replacement Monitor Disassembly Lithium Battery Replacement Reassembly INTRODUCTION The N -3100 can be disassembled down to all major component parts, including: • PCBs • lithium batteries • cables • function keys • chassis enclosures Tools required for disassembly: •...

  • Page 64: Monitor Disassembly

    Section 6: Disassembly Guide Fuse F1, 0.8 amp Figure 6-1: Fuse Replacement Replace the fuse, as illustrated above, with one of same value and rating (0.8 amp, 250 volt). Replace the bottom cover. MONITOR DISASSEMBLY Place the N-3100 in the standby mode by pressing the ON/STANDBY button.

  • Page 65: Replacing The Piezo Speaker

    Section 6: Disassembly Guide Separate the bottom enclosure from the top half of the monitor, keeping the right side panel attached to the bottom enclosure and the left side panel attached to the top. Disconnect the blood pressure module ribbon connector from the UIF board as illustrated in Figure 6-3.

  • Page 66: Replacing The Monitor Speaker

    Section 6: Disassembly Guide 6.3.2 Replacing the Monitor Speaker To replace the monitor speaker: Disconnect the lower docking connector ribbon from the UIF board by depressing the bar at the top of the connector on the UIF board and carefully pulling on the ribbon cable. Disconnect the speaker connector from the UIF board.

  • Page 67: Replacing The Hose Fitting

    Section 6: Disassembly Guide 6.3.3 Replacing the Hose Fitting To replace the hose fitting: Perform step 1 in paragraph 6.3.2. Disconnect the pump hose from the fitting on the side panel. Loosen and remove the retaining nut. Pull fitting out of the side-panel molded housing. Install the new fitting, applying LocTite (removable thread locker 242) or equivalent on the hose fitting and retaining nut, as illustrated in Figure 6-4.

  • Page 68: Removing Uif And Display Pcbs

    Section 6: Disassembly Guide To remove the display panel front lens, loosen the five screws securing the UIF board first, then lift the cover up and away from the chassis. Rear panel Lithium batteries UIF board Display board Front lens Top docking Top enclosure Button set...

  • Page 69: Removing The Pump Module

    Section 6: Disassembly Guide 6.3.5 Removing the Pump Module To remove the pump module: Remove the four screws securing the module to the bottom enclosure, as shown in Figure 6-6. Pump bracket Pump assembly Blood pressure PCB Lower docking connector Bottom enclosure Figure 6-6: Removing Pump Module 6- 7...

  • Page 70: Lithium Battery Replacement

    Slide the batteries from underneath the spring clips. Do not dispose of lithium batteries by placing them in the regular trash. Dispose of properly or return them to Nellcor Puritan Bennet’s Technical Services Department for disposal. Replace batteries, observing correct polarity (positive terminal up).

  • Page 71: Installing The Handle

    Section 6: Disassembly Guide Figure 6-7: Installing the Handle 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.

  • Page 73: Section 7: Spare Parts

    SECTION 7: SPARE PARTS Introduction INTRODUCTION Spare parts, along with corresponding part numbers, are shown below. Numbers in parentheses correspond to the callouts in Figure 7-1. Item Part Number Number Blood pressure module ribbon cable 030375 Lower docking connector PCB 031773 Fuse 691122...

  • Page 74: N-3100 Expanded View

    Section 7: Spare Parts Pump bracket (24) Blood Pressure module ribbon cable (1) Blood Pressure module (23) Lower docking connector PCB (2) Proximity switch (22) Fuse (3) Bottom enclosure (4) Battery cover (21) Handle assembly (5) Torsion spring (20) Rear panel (19) Peizo Left panel (6) speaker (18)

  • Page 75: Section 8: Packing For Shipment

    GENERAL INSTRUCTIONS Pack the monitor carefully. Failure to follow the instructions in this section may result in loss or damage not covered 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.

  • Page 76: Repacking In Original Carton

    Section 8: Packing for Shipment REPACKING IN ORIGINAL CARTON If available, use the original carton and packing materials as illustrated in Figure 8-1. Figure 8-1: Repacking the N-3100 Place the monitor and, if necessary, accessory items in the original packaging. Note: Additional packing materials will be needed around loose accessory items.

  • Page 77: Repacking In A Different Carton

    Section 8: Packing for Shipment REPACKING IN A DIFFERENT CARTON If the original carton is not available: Place the monitor in a plastic bag. Use a corrugated cardboard shipping carton with at least 200 pounds per square inch (psi) bursting strength. Fill the bottom of the carton with at least 2 inches of packing material.

  • Page 79: Section 9: Specifications

    ISO 9919, RFE per VFG 243, EMC per IEC 801 series and per CISPR 11, Class A and VDE 0871, Class B (Vfg. 243/1991). The NELLCOR SYMPHONY N-3100 blood pressure monitor adheres to ANSI/AAMI Standard SP10-1992, Standards for Electronic Automated Sphygmomanometers when tested in the supine position.

  • Page 80: Alarms

    Section 9: Specifications Operating Altitude -390m to +3,048m (-1,280 ft. to +10,000 ft.) Operating Relative Humidity 15 to 95%, noncondensing ALARMS Adult Alarm Limit Range Systolic Blood Pressure 60–250 mmHg Diastolic Blood Pressure 40–220 mmHg Mean Blood Pressure 45–235 mmHg Pulse Rate 30–180 bpm Neonatal Alarm Limit Range...

  • Page 81: Performance

    Section 9: Specifications PERFORMANCE Range Adult-Pediatric Measurement Range: Systolic Blood Pressure 60–250 mmHg Diastolic Blood Pressure 40–220 mmHg Mean Arterial Blood Pressure 45–235 mmHg Pulse Rate 40–200 bpm Neonatal Measurement Range: Systolic Blood Pressure 40–130 mmHg Diastolic Blood Pressure 20–90 mmHg Mean Arterial Blood Pressure 35–105 mmHg Pulse Rate...

  • Page 83: Appendix

    APPENDIX Integrity Tests Error Types User-Correctable Error Codes Failure Error Codes Internally Corrected Error Codes INTEGRITY TESTS The N -3100 routinely performs internal system integrity tests to verify and monitor proper operation. As a result, error codes are recorded in the internal Error Log and codes may be displayed on the monitor front-panel display.

  • Page 84: Error Types

    Appendix ERROR TYPES There are six classes of errors in the N-3100 as indicated in Table A-1. Table A-1: Error Types Error Type Description 1. Generic POST/ In this case, nothing may happen, or a shrill microprocessor continuous alarm may sound and the display may failure.

  • Page 85: User-Correctable Error Codes

    Appendix Table A-1: Error Types (Cont.) Error Type Description 5. User-correctable error. An EEE0xx code representing the failure is displayed and a low-priority alarm sound is produced, but no entry is made in the Error Log. These types of errors represent hardware failure conditions that can be corrected by the user, such as replacing a faulty cuff or unkinking the hose.

  • Page 86: Failure Error Codes

    Appendix User-correctable error codes (cont.) Blood pressure test failed, displayed only in service mode Blood pressure test failed, displayed only in service mode Communication failure with the pump assembly, displayed only in service mode FAILURE ERROR CODES Table A-2 lists the possible failure error codes in numerical order. Table A-2: N-3100 Failure Error Codes Error Code Explanation Blood pressure module failed startup tests...

  • Page 87: N-3100 Internally Corrected Error Codes

    Error Log. However, if you find it necessary to contact Nellcor Puritan Bennett’s Technical Services Department or your local Nellcor Puritan Bennett representative, they may request information from the Error Log. Table A-3: N-3100 Internally Corrected Error Codes...

  • Page 89: Technical Supplement

    TECHNICAL SUPPLEMENT Introduction Overview Stackbus Interconnect Circuit Analysis Schematic Diagrams INTRODUCTION This Technical Supplement provides the reader with a summary of the N-3100 operating principles and an in-depth discussion of N-3100 circuits. A functional overview and detailed circuit analysis are supported by block and schematic diagrams.

  • Page 90: Stackbus Interconnect

    Technical Supplement Systolic Pressure Mean Pressure Diastolic Pressure Time Cuff Linear Bleed Period Pressure Inflation Release Period Pressure Stabilization Figure S2-1: Oscillatory Blood Pressure Measurement STACKBUS INTERCONNECT Stackbus is the general term for the communication interconnect between the N-3000 and the N-3100 instruments. The internal communication bus is used for communications between the UIF/Power Supply PCB and the Blood Pressure module.

  • Page 91: Circuit Analysis

    Technical Supplement All stations participate in the loop when stacked and turned on. Maintenance of token passing, loop initialization, lost token recovery, and the addition of new stations is implemented in the N-3000’s UIF/Gateway and SpO modules and in the N-3100 by the Arcnet. CIRCUIT ANALYSIS This section provides a descriptive overview of the N-3100 modular design, as well as a detailed circuit analysis.
  • Page 92 Technical Supplement N3100 NIBP Measurement Module (Colin BPM1500) Dump Valve Sense Cuff Bleed Watchdog Valve Pump Pressure Sensor Stet Measurement Pressure Sensor Power Conditioning 10.5 +5 +6 Serial Communications Link UIF Board On/Stby Patient Power Batt Bus Management Button Circuitry External Serial Watchdog...

  • Page 93: S4.2 Detailed Circuit Analysis

    Technical Supplement S4.2 DETAILED CIRCUIT ANALYSIS The following paragraphs discuss the operation of each of the printed circuit boards within the N-3100 blood pressure monitor. (Refer to the appropriate schematic diagram at the end of this appendix, as necessary.) S4.2.1 UIF/Power Supply Module The UIF module, located on the UIF/Power Supply PCB, provides power to the other modules within the N-3100 and controls communication between each module.
  • Page 94 Technical Supplement The QSM allows the real-time clock to communicate to the QSM by connecting the MISO and MOSI lines. The signals from the QSM are tied to the 5-volt power supply through resistors. The SCI submodule communicates with the blood pressure module in an EIA -232 format at the 5-volt level.
  • Page 95 Technical Supplement Watchdog Timer — U21 ensures that the U3 microprocessor does not operate when the +5 volt supply falls below 4.5 volts minimum. This chip holds U3 in reset until the power supply is back within an acceptable range of voltage levels.
  • Page 96 Technical Supplement S4.2.1.4 Speaker Driver and Volume Control As illustrated in Figure S4-3, speaker tones originate from the U3 GPT output compare-pin (OC2). The GPT pin outputs a square wave whose frequency is under software control. This signal is buffered by U6, then input into DAC U5.

  • Page 97: S4.2.2 Blood Pressure Module

    Technical Supplement J5 — contains power and signal lines used in the stack configuration to communicate with the N-3000. These signal lines include the battery bus, charge bus, digital and case ground, and the external Stackbus. Table S4-2: J5 Upper Inter-Stack Connector Input/Output/ Pin No.

  • Page 98: S4.2.3 Display Board

    Technical Supplement When the start command from the UIF is received, the Blood Pressure module closes the bleed/dump valve and drives the pump to increase the cuff pressure to the preset value. The cuff is deflated by the opening of the bleed valve to measure the blood pressure.

  • Page 99: Schematic Diagrams

    Technical Supplement There are 11 buttons on the display panel: the ON/STANDBY button (SW1) and the AUDIBLE ALARM OFF button (SW2) are connected directly to the UIF/Power Supply module. All the buttons except the ON/STANDBY button are connected to an input matrix of PIC microprocessor U3. The PIC is responsible for communicating with the UIF.

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