1. Manuals
  2. Brands
  3. Nellcor Manuals
  4. Measuring Instruments
  5. NPB-75
  6. Service manual

Nellcor NPB-75 Service Manual

Handheld capnograph / pulse oximeter
Hide thumbs
Table of Contents

Advertisement

Quick Links

SERVICE MANUAL
NPB-75 Handheld Capnograph / Pulse Oximeter
Caution: Federal law (U.S.) restricts this device to sale by or on the order of a physician.
To contact Mallinckrodt, Inc. representative: In the United States, call 1-800-635-5267: outside the United States,
call your local Mallinckrodt representative.
© 2001 Mallinckrodt Incorporated. All rights reserved.
061222B-0601

Advertisement

Table of Contents
loading

Related Manuals for Nellcor NPB-75

Summary of Contents for Nellcor NPB-75

  • Page 1 SERVICE MANUAL NPB-75 Handheld Capnograph / Pulse Oximeter Caution: Federal law (U.S.) restricts this device to sale by or on the order of a physician. To contact Mallinckrodt, Inc. representative: In the United States, call 1-800-635-5267: outside the United States, call your local Mallinckrodt representative.
  • Page 2 Purchase of this instrument confers no express or implied license under any Mallinckrodt patent to use the instrument with any sensor that is not manufactured or licensed by Mallinckrodt. Nellcor Puritan Bennett, Nellcor, Durasensor, and Oxisensor II, are trademarks of Mallinckrodt Incorporated. 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; 4,869,254; 5,078,136;...
  • Page 3 Handheld Capnograph/Pulse Oximeter Service Manual 005554B...
  • Page 4 (This page intentionally left blank)

  • Page 5: Table Of Contents

    TABLE OF CONTENTS List of Figures List of Tables Section 1: Introduction................ 1-1 Manual Overview ............... 1-1 Warnings, Cautions, and Notes ......... 1-1 1.2.1 Warning.............. 1-1 1.2.2 Caution............... 1-1 1.2.3 Note..............1-1 Product Description ............1-2 Section 2: Required Equipment ............2-1 Required Equipment ............
  • Page 6 Table of Contents Replacing the Housing Components ....... 7-12 7.8.1 ON/OFF Button and Gas outlet......7-12 7.8.2 Keypads ............7-12 7.8.3 Front Cover ............7-13 7.8.4 Connector Latch, Rear Cover and Insulation Plate ........7-13 Updating the Software Version ........7-14 Section 8: Electrical Safety Tests ............
  • Page 7 Table of Contents LIST OF FIGURES Handheld Capnograph/Pulse Oximeter ......1-2 LCD Graphic Display Screen and 7-Segment Digital Display ..........1-2 Removing the Battery Pack ..........7-2 Removing Mounting Screws ..........7-3 Separating Rear and Front Covers........7-3 Replacing CO Board and Housing Components....

  • Page 8: Section 1: Introduction

    SECTION 1: INTRODUCTION Manual Overview Warnings, Cautions, and Notes Product Description MANUAL OVERVIEW This manual contains information for servicing the handheld capnograph/ pulse oximeter (the monitor). Only qualified service personnel should service this product. The Handheld Capnograph/Pulse Oximeter Operator’s Manual (the operator’s manual) is an integral part of the service procedures.

  • Page 9: Product Description

    Section 1: Introduction PRODUCT DESCRIPTION The handheld capnograph/pulse oximeter is used to continuously monitor end-tidal carbon dioxide (EtCO ), respiratory rate, oxygen saturation (SpO ), and pulse rate. The monitor is for attended monitoring only and must be used in the continuous presence of a qualified healthcare provider.

  • Page 10: Section 2: Required Equipment

    • FilterLine or FilterLine H ® • DS-100A - Durasensor , Nellcor • Leak Test Jig • Vacuum manometer with a range of 0-500 mBar e.g. MPB-3200-DM, Digital Manometer MicroPneumatic Logic, Inc. • Communication Adapter Kit (only necessary to verify print functions) •...
  • Page 11 (This page intentionally left blank)

  • Page 12: Section 3: Cleaning

    SECTION 3: CLEANING Cleaning CLEANING Always clean the outer surface of the monitor before servicing. Warning: Always wear latex or surgical gloves when cleaning or servicing the monitor after hospital use. Warning: Do not allow liquids to drip inside the housing. Warning: Do not clean internal components.
  • Page 13 (This page intentionally left blank)

  • Page 14: Section 4: Service Mode

    SECTION 4: SERVICE MODE Introduction Service Level 1 Service Level 2 INTRODUCTION The monitor supports a service mode built into the instrument’s firmware. To access the service mode, refer to Table 4-1: "Accessing Service Mode and Changing Parameter Settings". The architecture of the monitor’s service mode divides the service mode into two levels as described in the sections below.

  • Page 15: Interface Test Screen

    Section 4: Service Mode Note: To exit the service mode and save event messages, turn off the monitor. Event messages will be erased when exiting the service mode by a long press of 4.2.3 Interface Test Screen The interface test screen shows four parameters (listed below) that provide tools for the user to test, adjust, and calibrate the unit’s interfacing systems.

  • Page 16: Accessing Service Mode And Service Level 1

    Section 4: Service Mode 4.2.4 Accessing Service Mode and Service Level 1. Table 4-1: "Accessing Service Mode and Changing Parameter Settings" describes the process to access the service mode, change parameter settings and how to change Contrast Cal. settings. Table 4-1: Accessing Service Mode and Changing Parameter Settings Objective Action...

  • Page 17: Measuring Mode

    Section 4: Service Mode Table 4-1: Accessing Service Mode and Changing Parameter Settings (Continued) Objective Action Response To change Contrast short press Cal. setting to set To start Contrast Cal. short press “Contrast Cal.” flashes. To adjust Contrast press Cal. middle point Screen lightens or darkens until desired...

  • Page 18: Service Level 2

    Section 4: Service Mode SERVICE LEVEL 2 The Service Level 2 gives the service technician tools on three service screens: • Default Alarm Limits • Default Settings • Flow Calibration To access this service level, the service technician must enter a valid password (1627), refer to Table 4-2: "Accessing Service Level 2".

  • Page 19: Accessing Service Level 2

    Section 4: Service Mode Table 4-2: Accessing Service Level 2 (Continued) Objective Action Response To accept the last digit short press and access the Default Alarm Limits menu In case you entered a wrong digit: To restart password long press validation process To reset and return to long press...

  • Page 20: Changing Default Alarm Limits

    Section 4: Service Mode 4.3.1 Default Alarm Limits The service technician can change the default alarm limits for either patient mode (Adult or Neonatal) as described in Table 4-3: "Changing Default Alarm Limits". The monitor has the following alarms with adjustable level settings: •...
  • Page 21 Section 4: Service Mode Table 4-3: Changing Default Alarm Limits (Continued) Action Objective Response To reset to measuring long press mode (automatically erasing event messages) then long press To exit service mode Turn off the and save event monitor. messages...

  • Page 22: Changing Default Settings

    Section 4: Service Mode 4.3.2 Default Settings The service technician can change two default settings (refer to Table 4-4: "Changing Default Settings"): • 3 Min Alert When the 3 Min Alert is ON, the unit will beep every three minutes to remind the user that an alarm (or all alarms) are set to OFF.

  • Page 23: Accessing Flow Calibration

    Section 4: Service Mode 4.3.3 Flow Calibration The Flow Calibration screen allows the service technician to perform flow calibration after flow adjustment and/or pump or flow system replacement, refer to Table 4-5: "Accessing Flow Calibration". Section 6: Note: When changing the pump voltage setting, refer to Flow Calibration Check for change guidelines.

  • Page 24: Section 5: Troubleshooting

    SECTION 5: TROUBLESHOOTING Introduction Who Should Perform Repairs Repair Level Supported How to Use This Section Obtaining Replacement Parts Troubleshooting Guide INTRODUCTION This section provides information for troubleshooting the monitor and isolating a failure on the unit. WHO SHOULD PERFORM REPAIRS Only qualified service personnel should remove and replace monitor components.

  • Page 25: Troubleshooting Guide

    Section 5: Troubleshooting TROUBLESHOOTING GUIDE If you encounter a problem that cannot be resolved through a visual inspection, refer to Table 5-1: “Troubleshooting Guide” which provides a list of symptoms, probable causes, and recommended actions to take to correct the problem. It is recommended that corrective actions be performed in the order presented.
  • Page 26 Section 5: Troubleshooting Table 5-1: Troubleshooting Guide (Continued) Symptom Probable Cause Corrective Action The unit does not The wall socket is not Check the wall socket turn on when the receiving power or is for power supply or ON/OFF button defective.

  • Page 27: Advisory Messages Guide

    Section 5: Troubleshooting Table 5-1: Troubleshooting Guide (Continued) Symptom Probable Cause Corrective Action LED display The Power Refer to the monitor’s Management option is operator’s manual to does not light set at LOW . change the Power when the unit is Management option functioning.

  • Page 28: Flow System

    Section 5: Troubleshooting Table 5-3: Event Messages Event Message Probable Cause Corrective Action board A CO board component Replace with a new failed. board. board Replace with a new board. Flow - Loose connections - Inspect all tubing ends for loose connections and ensure tight connections...
  • Page 29 (This page intentionally left blank)

  • Page 30: Section 6: Flow Calibration Check

    SECTION 6: FLOW CALIBRATION CHECK Introduction Flow Rate Check Flow Calibration Process INTRODUCTION Perform a Flow Calibration Check after replacing the Flow System and/or Pump. Flow Calibration Check includes Flow Rate Check and Flow Calibration Process. FLOW RATE CHECK To perform the Flow Rate Check, follow the steps below: Connect the FilterLine to the handheld capnograph/pulse oximeter.

  • Page 31: Flow Calibration Process

    Section 6: Flow Calibration Check FLOW CALIBRATION PROCESS To perform the Flow Calibration Process, refer to Table 6-1: "Flow Calibration". Table 6-1: Flow Calibration Objective Action Response To access Flow After accessing Calibration screen Service Level 2 (after entering the password) Simultaneously long press...
  • Page 32 Section 6: Flow Calibration Check Table 6-1: Flow Calibration (Continued) Objective Action Response If Fail is displayed Replace Flow System and/or Pu m p volt. Pump (refer to Section 5: Troubleshooting) and repeat above procedure. If Pass is displayed Exit Service Mode. To reset and return to long press measuring mode...
  • Page 33 (This page intentionally left blank)

  • Page 34: Section 7: Disassembly Guide

    SECTION 7: DISASSEMBLY GUIDE Introduction Opening the Monitor Case Replacing the CO board Replacing the SpO board Replacing the Pump Replacing the Flow System Replacing the LCD and LED display Replacing the Housing Components Updating the Software Version INTRODUCTION The monitor can be disassembled and the following components can be replaced: •...

  • Page 35: Opening The Monitor Case

    Section 7: Disassembly Guide OPENING THE MONITOR CASE Be sure the monitor is disconnected from mains line power and remove the battery pack from the monitor; press the release button at the bottom of the monitor and pull out the battery pack as shown in Figure 7-1: Removing the Battery Pack.

  • Page 36: Removing Mounting Screws

    Section 7: Disassembly Guide Place the monitor on a clean, dry, nonabrasive surface with the back of the monitor facing up. Remove the two Bottom Mounting and two Back Mounting Screws from the rear panel of the monitor as shown in Figure 7-2: Removing Mounting Screws.

  • Page 37: Replacing The Co Board

    Section 7: Disassembly Guide REPLACING THE CO BOARD Refer to Figure 7-4: Replacing CO2 board and Housing Components Open the monitor case as described in section 7.2 "Opening the Monitor Case". Remove the two CO board Mounting Screws. Remove the CO Connector Screw from the CO Input Connector.

  • Page 38: Replacing The Spo Board

    Section 7: Disassembly Guide REPLACING THE SPO BOARD (Refer to Figure 7-5: Replacing SpO2 board.) Open the monitor case as described in section 7.2 "Opening the Monitor Case". Pull out the Internal SpO Connector Lock. Remove the three SpO board Mounting Screws and Washers. Remove the SpO board with attached cables and replace with a new SpO...

  • Page 39: Replacing The Pump

    Section 7: Disassembly Guide REPLACING THE PUMP Refer to Figure 7-6: Replacing the Pump. Open the monitor case described in section 7.2 "Opening the Monitor Case". Remove the Damping cover from the Pump. Locate the two tubings, Main line and Exhaust line, connected to the Pump, refer to Figure 7-7: Flow System.

  • Page 40: Replacing The Flow System

    Section 7: Disassembly Guide REPLACING THE FLOW SYSTEM Open the monitor case as described in section 7.2 "Opening the Monitor Case". The Flow System has 5 lines, refer to Figure 7-7: Flow System. Two lines go from the pump: • Main line •...

  • Page 41: Replacing The Lines To The Pump

    Section 7: Disassembly Guide 7.6.1 Replacing the lines to the pump 7.6.1.1 Replacing the Main line (Refer to Figure 7-8: Main line and Figure 7-9: Exhaust line) Locate the Purple restrictor. Carefully disconnect the Main line from the tubing connected to the Pump, leaving the Purple restrictor on the Main line.

  • Page 42: Replacing The Lines To The Solenoid

    Section 7: Disassembly Guide 7.6.2 Replacing the lines to the solenoid Refer to: Figure 7-10: Lines to Solenoid (Zero line, Input line 1, Input line 2) 7.6.2.1 Removing the lines to the solenoid Carefully disconnect the Zero line from the solenoid. Warning: The scrubber on the Zero line is filled with a lithium based compound.
  • Page 43 Section 7: Disassembly Guide 7.6.2.2 Reassembly of the lines to Solenoid Refer to Figure 7-10: Lines to Solenoid (Zero line, Input line 1, Input line 2) and Figure 7-11: Zero line Connect the new Input line1 to the line 1 solenoid connector. Connect the new Input line 2 to the line 2 solenoid connector.

  • Page 44: Replacing The Lcd And Led Display

    Section 7: Disassembly Guide REPLACING THE LCD AND LED DISPLAY (Refer to Figure 7-12: Replacing LCD and LED display) 7.7.1 Replacing the LCD Remove the CO board as described in Figure 7-4: Replacing CO2 board and Housing Components. Unscrew and remove the four LCD mounting screws. Carefully remove the LCD and replace with a new LCD.

  • Page 45: Replacing The Housing Components

    Section 7: Disassembly Guide REPLACING THE HOUSING COMPONENTS The Housing kit includes the following replaceable components: • Front Cover • Rear Cover • ON-OFF Button • Upper Keypad (Alarm Silence/Alarm Silence Menu Button and Contrast/Value Change Button) • Lower Keypad (Event/Home Button and Next/Menu Button) •...
  • Page 46 Section 7: Disassembly Guide 7.8.3 Front Cover (Refer to Figure 7-4: Replacing CO2 board and Housing Components) Open the monitor as described in section 7.2 "Opening the Monitor Case". Remove the CO board as described in section 7.3 "Replacing the CO2 Board".

  • Page 47: Updating The Software Version

    Section 7: Disassembly Guide UPDATING THE SOFTWARE VERSION Warning: Observe ESD (electrostatic discharge) precautions when disassembling and reassembling the monitor and when handling any of the components of the monitor. Open the monitor as described in section 7.2 "Opening the Monitor Case".

  • Page 48: Section 8: Electrical Safety Tests

    SECTION 8: ELECTRICAL SAFETY TESTS Electrical Safety Tests ELECTRICAL SAFETY TESTS Do not return the monitor to the user until the conditions are met in the following “Warning” statement. Warning: After servicing the monitor, always verify product performance per the procedures in Section 10: Performance Verification and perform any safety tests required by local regulatory bodies or mandated by your institution.
  • Page 49 (This page intentionally left blank)

  • Page 50: Section 9: Periodic Maintenance

    SECTION 9: PERIODIC MAINTENANCE Periodic Maintenance PERIODIC MAINTENANCE Periodic maintenance is recommended according to operating hours (refer to section 4.2 "Service Level 1"): The Pump and Flow System should be replaced every 7,000 operating hours. For replacing the pump, refer to section 7.5 "Replacing the Pump". For replacing the flow system, refer to section 7.6 "Replacing the Flow System".
  • Page 51 (This page intentionally left blank)

  • Page 52: Section 10: Performance Verification

    SECTION 10: PERFORMANCE VERIFICATION 10.1 Flow System Leak Check 10.2 Performance Verification Procedure The performance of the monitor must be verified after all service procedures. Perform all procedures in this section to verify the correct functioning of the monitor. 10.1 FLOW SYSTEM LEAK CHECK Perform the Flow System Leak Check after all service procedures described in this manual.

  • Page 53: Performance Verification Procedure

    Section 10: Performance Verification If the reading drops more than 20 mBar, there is a leak in the flow system. • Open the unit. • Check for loose fittings and if any are found, reconnect them. • Repeat the above process (steps 1-7). •...

  • Page 54: Quick Guide

    Section 10: Performance Verification Reconnect the FilterLine and verify that the message FilterLine disappears and the pump is operating. ® Disconnect the DS-100A - Durasensor and verify that the message Sensor is displayed in the Silent Advisory Message area. ® Reconnect the DS-100A - Durasensor and verify that the message Sensor disappears.
  • Page 55 Section 10: Performance Verification Calibration Check Caution: Do not check CO values from the measuring mode if the BTPS setting is ON (factory default). This mode corrects the CO value for BTPS. The calibration check mode disables this correction. In order to ensure accuracy, a CO calibration check needs to be done once a year.

  • Page 56: Co Calibration Check

    Section 10: Performance Verification Table 10-1: CO Calibration Check (Continued) Objective Action Result Check the Press the gas measured valve for 15 values shown in seconds until the Vol% in the readings stabilize EtCO digital display. Calibration is not required if the measured value is the same as the concentration of the calibration gas (±0.5%) e.g.

  • Page 57: Calibration Process

    Section 10: Performance Verification Calibration Process If calibration is required, perform the calibration process (after performing CO Calibration Check) as shown in Table 10-2: "Calibration Process". Table 10-2: Calibration Process Objective Action Result To start No action calibration required. process after calibration check.
  • Page 58 Section 10: Performance Verification Table 10-2: Calibration Process (Continued) Objective Action Result To reset and long press return to measuring mode To exit service Turn off the mode and save monitor. event messages Calibration Errors Table 10-3: "Calibration Process - Troubleshooting" describes calibration problems that can occur, the message displayed and the appropriate corrective action.

  • Page 59: Plethysmograph Waveform

    Section 10: Performance Verification Advance to the Plethysmograph Display screen as described in Table 10-4: "Plethysmograph Waveform" below. Table 10-4: Plethysmograph Waveform To View Action Screen waveform No action (Measuring required. Mode) Plethysmograph short press (x4) ® Connect the DS-100A - Durasensor to your finger.
  • Page 60 Section 10: Performance Verification To verify printing functions: Adjust the printer to the following communication settings: Input Serial Data Length 8 bits Parity Settings None Baud 9600 bps Using the Communication Adapter Kit, connect the printer to the monitor. (Refer to Figure 10-6: Connecting the monitor to Printer/ PC with Communication Adapter Kit) Figure 10-6: Connecting the monitor to Printer/PC with Communication Adapter Kit...

  • Page 61: Accessing Monitor's Print Functions

    Section 10: Performance Verification Table 10-5: Accessing Monitor’s Print Functions Objective Action Result To access the long press (x2) Instrument Setup menu (first access the Alarm Limits menu from any measuring display) To select Print short press (x2) Be sure the Print short press option shows Screen;...

  • Page 62: Section 11: Packing For Shipment

    SECTION 11: PACKING FOR SHIPMENT 11.1 General Instructions 11.2 Packing the Monitor in Original Carton 11.3 Packing in a Different Carton 11.1 GENERAL INSTRUCTIONS To ship a monitor or one of its components for any reason, follow the instructions in this section. Failure to follow the instructions in this section may result in loss or damage not covered by any applicable manufacturer warranty.

  • Page 63: Packing The Monitor In Original Packing

    Section 11: Packing For Shipment Place the bagged monitor or component on the layer of packing material and fill the box with packing material (at least 2 inches of packing material around all sides of the item). Seal the carton with packing tape. Label the carton with shipping address, return address and any other required information.

  • Page 64: Section 12: Specifications

    SECTION 12: SPECIFICATIONS 12.1 Physical 12.2 Environmental 12.3 Safety Standards 12.4 Performance 12.5 Power Specifications 12.6 Components and User Interface 12.1 PHYSICAL 12.1.1 Size 206 mm H x 88 mm W x 52.5 mm D (8.11”H x 3.46” W x 2.06”D) 12.1.2 Weight 850 grams (1.87 lb.) (including battery pack) 12.1.3 Noise Emission...

  • Page 65: Performance

    Section 12: Specifications 12.4 PERFORMANCE 12.4.1 Capnograph Sampling Rate 50 ±7.5 ml/min. Range 0-99 mmHg (0-13.2 kPa and 0-13.0 Vol%) at sea level Accuracy The CO reading reaches its steady state accuracy 20 minutes after power 0 - 38 mmHg: (±2 mmHg) 39 - 76 mmHg: (±5% of reading)

  • Page 66: Pulse Oximeter

    Section 12: Specifications 12.4.2 Pulse Oximeter 12.4.2.1 Display Ranges Saturation Range 0-100% SpO Saturation Accuracy (% SpO , ±1 SD) Adults 70-100%±2 digits 0 - 69% Unspecified Neonates 70-100%±3 digits 0 - 69% Unspecified Note: Accuracies are expressed as plus or minus “X” digits (oxygen saturation percentage points) between saturations of 70-100%.

  • Page 67: Power Specifications

    Section 12: Specifications 12.5 POWER SPECIFICATIONS 12.5.1 External Power Source 12V DC Medical Grade Adapter 12.5.2 Internal Power Source Ni-MH Rechargeable Battery Pack 7.2V 2100 mA/h (intended for continuous operation) Operating Time (fully charged) Between 3 to 6 hours depending on power management. This spec reflects the performance of a new battery;...

  • Page 68: Section 13: Spare Parts

    SECTION 13: SPARE PARTS 13.1 Spare Parts List 13.1 SPARE PARTS LIST Spare parts are shown below in Table 13-1. For spare part numbers contact your local distributor. Table 13-1: Spare Parts List Item Description board - includes electronic board, sensor, pump and scrubber, solenoid, LCD, 7-segment display, flow system, CO input connector, software EPROM and...
  • Page 69 (This page intentionally left bl;ank)

  • Page 70: Glossary Of Terms

    GLOSSARY OF TERMS BIT: Built in Tests. BTPS: Body Temperature, Pressure and Saturation Compensation. Where Body Temperature is assumed 37°C with vapor pressure 47mmHg The Calculations are made according to: x (Pb - 47) Where: is the Fractional concentration of CO Dry gas, F = % CO /100...
  • Page 71 (This page intentionally left blank)

Table of Contents