Nellcor NPB-75 Service Manual Download Page 1

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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.

Summary of Contents for NPB-75

Page 1: ...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 Mallinckro...

Page 2: ...e 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...

Page 3: ...Handheld Capnograph Pulse Oximeter Service Manual 005554B...

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Page 5: ...4 7 4 3 2 Default Settings 4 9 4 3 3 Flow Calibration 4 10 Section 5 Troubleshooting 5 1 5 1 Introduction 5 1 5 2 Who Should Perform Repairs 5 1 5 3 Repair Level Supported 5 1 5 4 How to Use This Sec...

Page 6: ...king For Shipment 11 1 11 1 General Instructions 11 1 11 2 Packing the Monitor in Original Carton 11 1 11 3 Packing in a Different Carton 11 1 Section 12 Specifications 12 1 12 1 Physical 12 1 12 1 1...

Page 7: ...Leak Test Jig Connection 10 1 10 2 Initialization Screen 10 2 10 3 Self Test Screen 10 2 10 4 Measuring Mode 10 2 10 5 Quick Guide 10 3 10 6 Connecting the monitor to Printer PC with Communication Ada...

Page 8: ...ly for a thorough understanding of how to operate the unit Only use the tools and test equipment as specified in this manual Only use original spare parts available from your local distributor Warning...

Page 9: ...e where continuous noninvasive monitoring of these parameters is desired including hospital and mobile use when protected from excessive moisture such as direct rainfall The monitor operates on AC pow...

Page 10: ...Line 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 nece...

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Page 12: ...Do not allow liquids to drip inside the housing Warning Do not clean internal components Warning Do not use preparations based on phenols halogen producing compounds strong organic acids or oxygen pro...

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Page 14: ...and event messages test the Human Interface functions HMI set the light detection threshold adjust the LCD contrast middle point and perform a calibration check and a calibration process if necessary...

Page 15: ...4 2 3 2 Light Detector The Light Detector parameter allows the service technician to set the threshold value of the phototransistor The default value is 1 and the range is from 1 to 5 with 1 as the mo...

Page 16: ...o change Contrast Cal settings Table 4 1 Accessing Service Mode and Changing Parameter Settings Objective Action Response To access Service Mode During self test long press simultaneously and Self tes...

Page 17: ...t lightens the screen and pressing on the right darkens the screen Screen lightens or darkens To accept new setting short press To reset and return to measuring mode automatically erasing the event me...

Page 18: ...ssword should not be disclosed to avoid unauthorized setting of parameters Table 4 2 Accessing Service Level 2 Objective Action Response To access Service Level 2 After entering the service mode long...

Page 19: ...Limits menu short press In case you entered a wrong digit To restart password validation process long press To reset and return to measuring mode automatically erasing event messages long press To ex...

Page 20: ...vels mmHg FiCO2 high level mmHg SpO2 high and low levels Pulse rate high and low levels bpm Warning Changing default settings will permanently change the user s start up value and should be verified w...

Page 21: ...ective Action Response To reset to measuring mode automatically erasing event messages long press then long press To exit service mode and save event messages Turn off the monitor Table 4 3 Changing D...

Page 22: ...e pressure saturation When BTPS is ON the CO2 value is corrected for this factor Table 4 4 Changing Default Settings Objective Action Response To access the Default Settings menu after accessing the D...

Page 23: ...essing Flow Calibration Note When changing the pump voltage setting refer to Section 6 Flow Calibration Check for change guidelines Table 4 5 Accessing Flow Calibration Objective Action Response To ac...

Page 24: ...D digital displays LED display and Software Assembly The procedures for disassembling and replacing the mentioned parts are described in Section 7 Disassembly Guide 5 4 HOW TO USE THIS SECTION Failure...

Page 25: ...ubleshooting Guide Symptom Probable Cause Corrective Action The unit does not turn on when the ON OFF button is switched ON when the unit is operated with batteries The battery pack is missing or is i...

Page 26: ...ations or other damage Replace with a new keypad A CO2 board component has failed Replace with a new CO2 board No information is displayed on the LCD The contrast default value is set too low or high...

Page 27: ...e Pulse Tone option on the Alarm Silence menu has been disabled Turn the Pulse Tone ON Refer to the monitor s operator s manual One or more of the Alarm Silence options has been turned OFF Turn the re...

Page 28: ...board Replace with a new SpO2 board Flow Loose connections Kinks or twists in tubing Flow system blocked Inspect all tubing ends for loose connections and ensure tight connections Straighten kinks and...

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Page 30: ...Meter reading is 50 5 ml min 5a Perform Flow Calibration Process refer to section 6 3 Flow Calibration Process If the Flow Meter reading is not 50 5 ml min 5b Change the pump voltage value until the...

Page 31: ...Response To access Flow Calibration screen After accessing Service Level 2 after entering the password Simultaneously long press and To change the parameter setting or value short press To move to the...

Page 32: ...Flow System and or Pump refer to Section 5 Troubleshooting and repeat above procedure If Pass is displayed Exit Service Mode To reset and return to measuring mode long press To exit service mode and...

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Page 34: ...ED digital displays LED display Caution Observe ESD electrostatic discharge precautions when disassembling and reassembling the monitor and when handling any of the components of the monitor Use the f...

Page 35: ...re 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...

Page 36: ...Mounting and two Back Mounting Screws from the rear panel of the monitor as shown in Figure 7 2 Removing Mounting Screws Figure 7 2 Removing Mounting Screws 4 Carefully lift the rear case cover up an...

Page 37: ...ove the CO2 Connector Screw from the CO2 Input Connector 4 Remove the ON OFF Button and save for reassembly 5 Pull out and remove the Gas Outlet and save for reassembly 6 Remove the CO2 board and repl...

Page 38: ...SpO2 board with attached cables and replace with a new SpO2 board Be sure to reattach the cables and use the new Internal SpO2 Connector Lock Be sure the SpO2 Insulation Plate is placed correctly over...

Page 39: ...th restrictors must remain with their flow system lines attached to the CO2 board 6 Disconnect the Pump connector from it s CO2 board socket 7 Remove the CO2 board from the Front Cover refer to sectio...

Page 40: ...se 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 Exhaust line Three lines go from the solenoid Z...

Page 41: ...Remove the tubing from the Pressure sensor 5 Reassemble the new Main line in reverse order Note In order to fit the Main line on the board without twists and kinks coil the tubing around the Pressure...

Page 42: ...Zero line from the solenoid Warning The scrubber on the Zero line is filled with a lithium based compound Follow local governing ordinances for disposal 2 Remove Input line 1 from the solenoid connec...

Page 43: ...2 solenoid connector 3 Bring the Input line 2 tubing over Input line 1 and connect to the sensor connector 4 Lead the Input line 1 under the FRS cables connected to the FilterLine input connector not...

Page 44: ...ng Components 2 Unscrew and remove the four LCD mounting screws 3 Carefully remove the LCD and replace with a new LCD 7 7 2 Replacing the LED Display 1 Remove the CO2 board as described in section 7 3...

Page 45: ...Button and Gas Outlet Refer to Figure 7 4 Replacing CO2 board and Housing Components 1 Open the monitor as described in section 7 2 Opening the Monitor Case 2 Remove the Gas Outlet from the tubing an...

Page 46: ...SpO2 board Figure 7 12 Replacing LCD and LED display and Figure 7 13 Replacing SpO2 Connector Latch 1 The External SpO2 Connector Latch can be removed without opening the monitor casing Carefully pul...

Page 47: ...itor as described in section 7 2 Opening the Monitor Case 2 Remove the EPROM from its socket on the CO2 board using an IC extractor Refer to Figure 7 14 Replacing EPROM 3 Insert the new EPROM Note Whe...

Page 48: ...nitor 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 Ver...

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Page 50: ...fer 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...

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Page 52: ...vacuum manometer to the Leak Test Jig as shown in Figure 10 1 Leak Test Jig Connection Figure 10 1 Leak Test Jig Connection 2 Open the Leak Test Jig clamp and empty the syringe s contents 3 Connect t...

Page 53: ...zation Screen 5 Verify that an audio tone sounds This verifies proper operation of the alarm interfacing Check that the LEDs on the alarm bar turn red yellow and then off The LED display shows 8s movi...

Page 54: ...d in the Silent Advisory Message area 12 Reconnect the DS 100A Durasensor and verify that the message SpO2 Sensor disappears 13 Verify that all buttons on the unit work properly Refer to the monitor s...

Page 55: ...this procedure Start the process from the Interface Test screen refer to Table 4 1 Accessing Service Mode and Changing Parameter Settings as follows in Table 10 1 CO2 Calibration Check Note Connect t...

Page 56: ...oncentration of calibration gas used is 5 CO2 the measured value should be between 4 8 5 2 therefore calibration is not required To reset and return to measuring mode automatically erasing event messa...

Page 57: ...ibration process after calibration check No action required To activate calibration process long press Adjust the display value to the gas concentration you are using short press To start calibration...

Page 58: ...e 10 3 Calibration Process Troubleshooting Message Possible Causes Action Gas concentration does not match the concentration value selected in the first calibration screen Problems with gas sampling F...

Page 59: ...upply Verify the unit continues to work from its battery pack and the battery icon appears on the lower right corner of the display 18 Reconnect the monitor to mains line power with the AC adapter Ver...

Page 60: ...ps 20 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 21 Turn the printer ON and select...

Page 61: ...ccess the Instrument Setup menu first access the Alarm Limits menu from any measuring display long press x2 To select Print short press x2 Be sure the Print option shows Screen if it doesn t change to...

Page 62: ...bserve ESD electrostatic discharge precautions when packing any monitor components 11 2 PACKING THE MONITOR IN ORIGINAL CARTON If the original carton and packing material are available repack the moni...

Page 63: ...ing material and fill the box with packing material at least 2 inches of packing material around all sides of the item 5 Seal the carton with packing tape 6 Label the carton with shipping address retu...

Page 64: ...ttery pack 12 1 3 Noise Emission maximum 45 dB A 12 2 ENVIRONMENTAL 12 2 1 Temperature Operating 0o C to 45o C 32o F to 113o F Storage 35o C to 70o C 31o F to 158o F 12 2 2 Relative Humidity 10 to 95...

Page 65: ...t values for kPa and Vol Frequency Response EtCO2 accuracy is maintained up to 80 breaths min for maintaining accuracy for respiration rate over 60 bpm use the neonatal mode From 81 to 150 bpm accurac...

Page 66: ...ed on testing the subject monitor on healthy adult volunteers in induced hypoxia studies across the specified range Adult accuracy is determined with Oxisensor II D 25 sensors Neonatal accuracy is det...

Page 67: ...ty three times before use in order to ensure full capacity Recharging Period Approximately 4 5 hours internal recharging Charger Type Internal 12 6 COMPONENTS AND USER INTERFACE 12 6 1 Displays LCD gr...

Page 68: ...includes EPROM chip and last updated software version 3 SpO2 board 4 SpO2 Kit includes inter board connection cable SpO2 input cable SpO2 insulation plate and internal connector lock 5 Housing Kit inc...

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Page 70: ...trostatic Discharge EtCO2 End Tidal Carbon Dioxide amount of CO2 present at the end of the exhalation FiCO2 Fractional Inspired Carbon Dioxide amount of CO2 present during inhalation FRS FilterLine Re...

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