Service Manual Nellcor TM Portable SpO2 Patient Monitoring System
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Table of Contents 1 Introduction 1.1 1.2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2.1 Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2.2 Explosion, Shock, and Toxicity Hazards . . . . . . . . . . . . . . . . . . . . 1-2 1.2.3 Service Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 3.5.1 4 Troubleshooting 4.1 4.2 4.3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Error Conditions by Category . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 System Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Figures Figure 2-1. Figure 2-2. Figure 2-3. Figure 2-4. Figure 2-5. Figure 2-6. Figure 2-7. Figure 2-8. Figure 2-9. Figure 2-10. Figure 2-11. Figure 2-12. Figure 2-13. Figure 2-14. Figure 2-15. Figure 2-16. Figure 2-17. Figure 2-18. Figure 2-19. Figure 3-1. Figure 3-2. Figure 3-3. Figure 3-4. Figure 3-5. Figure 3-6. Figure 3-7. Figure 3-8. Figure 3-9. Figure 3-10. Figure 3-11. Figure 3-12. Figure 3-13. Figure 3-14. Figure 3-15. Figure 3-16. Figure 3-17. Figure 3-18. Figure 3-19. Figure 3-20.
Figure 3-26. Figure 3-27. Figure 3-28. Figure 3-29. Figure 3-30. Figure 3-31. Figure 3-32. Figure 3-33. Figure 3-34. Figure 3-35. Figure 3-36. Figure 3-37. Figure 3-38. Figure 3-39. Figure 3-40. Figure 3-41. Figure 3-42. Figure 3-43. Figure 3-44. Figure 4-1. Figure 5-1. Figure 5-2. Figure 5-3. Figure 5-4. Figure 5-5. Figure 5-6. Figure 5-7. Figure 5-8. Figure 5-9. Figure 5-10. vi Auto Power Off Time Setting .................................................. 3-30 SRC-MAX OxiMax Oximetry Tester ............
List of Tables Table 1-1. Table 2-1. Table 3-1. Table 3-2. Table 3-3. Table 3-4. Table 4-1. Table 4-2. Table 5-1. Table 5-2. Safety Symbol Definitions......................................................... 1-2 Monitoring Status Codes ........................................................ 2-12 Required Test Equipment ......................................................... 3-2 Patient Modes ........................................................................... 3-5 Wireless Status Icon.............
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1 Introduction 1.1 Overview This manual contains information for servicing the Nellcor™ Portable SpO2 Patient Monitoring System. This manual applies to the following products: PM10N PM10N-W Note: Before use, carefully read this manual, the Operator’s Manual, accessory Instructions for Use, and all precautionary information and specifications.
Introduction 1.2 Safety Information This section contains important safety information related to general use of the Nellcor™ Portable SpO2 Patient Monitoring System. Other important safety information appears throughout the manual. The Nellcor™ Portable SpO2 Patient Monitoring System is referred to as the “monitoring system” throughout this manual. 1.2.1 Safety Symbols Table 1-1.
Safety Information 1.2.3 Service Manual WARNING: The LCD panel (display) contains toxic chemicals. Do not touch broken LCD panels. Physical contact with a broken LCD panel can result in transmission or ingestion of toxic substances. Service Procedures WARNING: To avoid possible injury, do not attempt to service the monitoring system if there are any signs of burning or smoking coming from the monitoring system.
Introduction 1.2.4 1-4 WARNING: Any connections between this monitoring system and other devices must comply with applicable medical systems safety standards such as IEC 60601-1. Failure to do so could result in unsafe leakage current and grounding conditions. WARNING: To ensure accurate performance and prevent device failure, do not expose the monitoring system to extreme moisture, such as direct exposure to rain. Such exposure may cause inaccurate performance or device failure.
Safety Information only qualified service personnel should remove the cover or access internal components for any other reason. Users should not modify any components of the monitoring system. 1.2.5 Service Manual WARNING: Do not spray, pour, or spill any liquid on the monitoring system, its accessories, connectors, switches, or openings in the casing, since this may cause damage to the monitoring system. Never place fluids on the monitoring system.
Introduction 1.2.6 1.2.7 1-6 WARNING: As with all medical equipment, carefully route patient cabling to reduce the possibility of patient entanglement or strangulation. WARNING: Do not lift or carry the monitoring system by the pulse oximetry sensor or pulse oximetry interface cable. The cable may disconnect and cause the monitoring system to drop on a patient or cause damage to monitoring system surfaces.
Safety Information 1.2.8 Service Manual WARNING: Use only the Covidien-approved pulse oximetry sensors, interface cables, and accessories. Use of other sensors, cables, and accessories can result in inaccurate readings and increased monitoring system emissions. WARNING: Do not use any other cables to extend the length of the Covidien-approved interface cable. Increasing the length will degrade signal quality and may lead to inaccurate measurements.
Introduction 1.2.9 1-8 Caution: This device has been tested and found to comply with the limits for medical devices related to IEC 60601-1-2: 2007. These limits are designed to provide reasonable protection against harmful interference in a typical medical installation. Caution: This monitoring system generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to other devices in the vicinity.
Safety Information with the requirements of IEC Standard 60601-1-1 and the electromagnetic compatibility IEC Standard 60601-1-2. 1.2.10 Service Manual Monitoring System Storage, Transport, and Disposal Caution: Remove the batteries from the monitoring system before placing it in storage or when not using it for a long period. Caution: Do not short-circuit the batteries, as they may generate heat.
Introduction 1.3 1.3.1 Obtaining Technical Assistance Technical Services For technical information and assistance, contact Covidien or a local Covidien representative. Covidien Technical Services: Patient Monitoring 15 Hampshire Street Mansfield, MA 02048 USA 1.800.635.5267, 1.925.463.4635, or contact a local Covidien representative www.covidien.com When calling Covidien or a local Covidien representative, have the monitoring system serial number available.
Revision History 1.4 Revision History The documentation part number and revision number indicate its current edition. The revision number changes when Covidien prints a new edition. Minor corrections and updates incorporated at reprint do not cause a change in the revision number. Extensive changes may require a new document part number. 1.5 Warranty Information The information contained in this document is subject to change without notice.
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2 Data Management 2.1 Overview This chapter contains information for accessing, transmitting, and downloading patient monitoring data and history. This chapter also contains instructions for upgrading firmware for the Nellcor™ Portable SpO2 Patient Monitoring System. The monitoring system supports the following types of data viewing and transmission: 2.
Data Management Caution: Do not attach any cable intended for computer use to the sensor port connector. Caution: Connect the monitoring system to a medical grade PC that is on an isolated AC circuit. Note: Reference the manuals for the Covidien Nellcor™ Oxinet III Remote Monitoring System and Vital Sync™ System 2.0 or above for operation information and recommendations for the placement of the monitoring system relative to the distributed alarm system.
External Data Communication Figure 2-1. Communication Settings—Oxinet Service Manual 4. Select Oxinet Settings and make the following settings: • Destination IP Address — Set the IP address of the computer with the Oxinet or VitalSync program installed • Port — 18000 for Oxinet; 10001 for VitalSync 5. Select the data packet type (ASCII, SPDout) by selecting Remote Connectivity.
Data Management Figure 2-2. Remote Connectivity Selections 6. 2-4 Select Add New Connection and set as follows: a. SSID: Enter the SSID name of the AP (access point). b. Encryption: Select the encryption type of the current AP. c. Encryption Type: Set the password for each encryption type. d. DHCP: Turn DHCP On or Off. (When On, the IP Address, Subnet Mask, and Gateway setting are automatically assigned using DHCP.) e. IP Address: If DHCP is Off, set the IP address of the monitoring system. f.
External Data Communication Figure 2-3. New Connection Settings 7. From the Select Wi-Fi Target menu, select the AP saved in the previous step. 8. Exit the Service Menu and go to the Device Settings Menu. To transfer real-time data to Oxinet 1. On the Device Settings menu, select Wi-Fi to activate the Wi-Fi connection.
Data Management Figure 2-4. Wi-Fi On/Off Setting 2-6 2. On the Oxinet interface, click the Administration button at the bottom of the screen and verify that the BEDs are connected. (When a connection is first established, a BED is displayed in an orange color.) 3. Select the connected BED and select the room number. 4. After verifying that the room is selected, register the patient information. 5.
External Data Communication To transfer real-time data to Vital Sync 2.0 or above 1. Reference To set up a new connection for Oxinet or VitalSync, p. 2-2 to connect to a wireless network. 2. On the Device Settings menu, select Wi-Fi to activate the Wi-Fi connection. Figure 2-5. Wi-Fi On/Off Setting 3. 2.2.2 The real-time data displays on the Vital Sync screen. Monitoring History Download The monitoring system presents monitoring history (trend data) in tabular format.
Data Management with the requirements of IEC Standard 60601-1-1 and the electromagnetic compatibility IEC Standard 60601-1-2. Caution: Signal artifacts, secondary to a variety of external factors, may compromise the presence or accuracy of the displayed values. Caution: If the monitoring system does not contain its own isolation barrier, connect it to a medical grade PC that is on an isolated AC circuit.
External Data Communication the product CD or from Technical Services. Reference COM port USB Driver Alternatives, p. 2-13. Note: Any monitoring history download relies on either factory default settings or institutional default settings established by a qualified service technician prior to usage. This includes baud rate and communication protocol selection. To download monitoring history using HyperTerminal 1. Configure the monitoring system’s Serial Connectivity Settings appropriately. 2.
Data Management Figure 2-7. Transfer Data Type 6. Select By USB. Figure 2-8. Transfer Data by USB The data is transferred, and a progress bar is displayed. If desired, select Cancel to abort the transmission.
External Data Communication The Output Complete message is displayed when the transmission is complete. To interpret downloaded monitoring history 1. Examine monitoring history on the HyperTerminal screen, in a spreadsheet, or on a printout from the personal computer. Figure 2-9.
Data Management 4. Reference Table 2-1 on page 2-12 for descriptions of the operating status codes. Table 2-1.
External Data Communication COM port USB Driver Alternatives • Load the appropriate driver from the product CD into the connected computer. • Contact Technical Services or a local Covidien representative. To install a USB driver from the compact disc 1. Insert the Nellcor™ Portable SpO2 Patient Monitoring System compact disc (CD) into the designated personal computer (PC). 2. Copy the Covidien USB to UART Bridge Driver zip file to the PC, installing it in the desired program folder. 3.
Data Management 10. Allow the PC to sense the new hardware and load the InstallShield Wizard, which guides users through the entire setup process. Do not click the Cancel button. Figure 2-11. New Hardware Wizard Screen 2-14 11. At the prompt from the InstallShield Wizard, click the Next button to copy the driver to the PC. 12. When the InstallShield Wizard provides the end-user license agreement, read it carefully, then click the button for accepting the terms of the license. 13.
External Data Communication 17. Click OK to complete the installation in the resulting Success window. 18. Reboot the PC for changes to take effect. 19. From the Start menu, click the Settings menu option and select the Control Panel option. 20. Select the System option to open the System Properties window. 21. Click the Hardware tab, then the Device Manager button. Figure 2-12. Device Manager Button, Hardware Tab 22. Service Manual Select the Ports option from the resulting list.
Data Management Figure 2-13. Hardware List in Device Manager Window 23. 2-16 Double click the Silicon Labs CP210x USB to UART Bridge option. Note: The listed COM port should match the HyperTerminal COM port designation. Reference To download monitoring history using HyperTerminal, p. 2-9.
External Data Communication Figure 2-14. Sample Initial USB to UART Bridge Properties Window Service Manual 24. Click the Port Settings tab. 25. Set the bits per second to one of four possible baud rates: 19200, 38400, 57600, or 115200. The factory default is 19200 bps.
Data Management Figure 2-15. Baud Rate List, Port Settings Tab 2.3 26. Click the OK button to complete the process. 27. Reference To download monitoring history using HyperTerminal, p. 2-9 to download monitoring history. Or, use a different data transmission and analysis tool. Firmware Upgrade This section describes how to upgrade the firmware for the monitoring system. Firmware updates occur periodically, and the monitoring system should be kept up to date to ensure proper operation.
Firmware Upgrade Caution: To help prevent the loss of power during the upgrade, make sure to use new batteries. Caution: Do not press buttons other than those specified in the following instructions. The firmware upgrade can be interrupted or canceled by pressing any button. Caution: When the firmware version (.bin) is not matched with the correct version of the resource file (.res), the monitoring system may not operate properly. Preliminary steps 1.
Data Management 5. Start the PC Sync utility. Figure 2-17. Firmware Upgrade, PCSync Utility 6. Complete the connection between the monitoring system and PCSync by using the PC’s Device Manager to determine the serial port number for the USB to UART Bridge. Enter the port number in the Serial Port box at the top left of the dialog box, then click Connect. To verify the connection, click the Get Software Version on the PC Sync dialog box.
Firmware Upgrade Figure 2-18. Firmware Upgrade Process 9. Verify the upgrade is complete by checking the POST screen and firmware version. Figure 2-19.
Data Management 2-22 Note: The monitoring system’s previous settings are not modified during the upgrade. Reference the Operator’s Manual for power-on settings.
3 Modification and Testing 3.1 Overview This chapter provides information to trained service technicians on verifying Nellcor™ Portable SpO2 Patient Monitoring System performance following repairs or during preventive maintenance. When performing tests, follow these guidelines: • All tests can be performed without removing the covers from the monitoring system. • For many of the tests, the PCSync utility shown in Figure 2-17, p.
Modification and Testing 3.2 Required Equipment Table 3-1. Required Test Equipment Equipment 3.3 3.3.1 Description/Use SpO2 sensor (durable) DS-100A Durasensor™ Adult Finger Clip Sensor SpO2 extension cable DEC-4 SpO2 simulator Nellcor model SRC-MAX Stop watch Manual or electronic/For alarm audio paused and alarm reminder intervals Note: Contact Covidien Technical Services for pricing and ordering information of the required equipment. Reference Technical Services, p. 1-10.
System Performance Tests Figure 3-1. Power-On Self-Test Sequence 3.3.2 Note: POST takes approximately 10 seconds to complete. Note: If an error occurs during POST, the monitoring system displays an error message. Reference Chapter 4, Troubleshooting. Battery Status To verify battery status: 1. Insert the batteries into the monitoring system. Service Manual 2. Press and hold the Power On/Off button for approximately 1 second. 3. Verify the monitoring system is turned on and operating normally.
Modification and Testing • 4. 3.3.3 When the monitoring system is in a low battery condition, the remaining battery power is only enough for 15 minutes of operation. Replace the batteries. Press and hold the Power On/Off button for approximately 1 second and verify that the monitoring system turns off. Patient Modes To verify that patient modes can be selected 1. Select the Change Patient Mode Menu. A check mark appears next to the selected patient mode. Figure 3-2. Change Patient Mode Menu 2.
System Performance Tests Note: To change to Homecare Mode or Sleep Study Mode requires a unique pass code for each mode. Contact Covidien Technical Services for these pass codes. Table 3-2. Patient Modes Icon Patient Mode Adult Neonatal Homecare (requires Homecare pass code) Sleep Study (requires Sleep Study pass code) 3.3.4 Homecare Mode To verify Homecare Mode: 1. Connect a sensor to the monitoring system and to a live subject. Service Manual 2. Access the Change Patient Mode menu. 3.
Modification and Testing Figure 3-3. Homecare Mode Menu Item 4. Enter the four-digit pass code for Homecare Mode. Use the Up and Down buttons to change the value for each digit, then press OK to select the value. 3-6 5. After entering the four digits, select Confirm to enter Homecare Mode. 6. Verify that the Homecare Mode screen appears. The Homecare Mode icon appears at top left of the screen, and the monitoring screen’s appearance is different from the Standard Mode and Sleep Study Mode screens.
System Performance Tests Figure 3-4. Homecare Mode Monitoring Screen 3.3.5 Sleep Study Mode To verify Sleep Study Mode 1. Access the Change Patient Mode menu. 2. Service Manual Press the Up or Down button to highlight Sleep Study Mode, then press OK to select Sleep Study Mode.
Modification and Testing Figure 3-5. Sleep Study Mode Menu Item 3. Enter the four-digit pass code for Sleep Study Mode. Use the Up and Down buttons to change the value for each digit, then press OK to select the value. 3.3.6 4. After entering the four digits, select Confirm to enter Sleep Study Mode. 5. Verify that the Sleep Study Mode icon appears at top of screen. Date and Time To verify the date and time are accurate: 1. Select the Service Menu. 2.
System Performance Tests Figure 3-6. Date/Time Settings 3.3.7 3. Set the correct year, month, day, hour, and minute. 4. Use the Up button and Down button to scroll through the Date Format options. The options allow for changes in the date format (yy/mm/dd, mm/dd/yy, dd/mm/yy). 5. Verify that the selected year, month, day, hour, and minute appear at top of screen. Note: The time format is 24 hours only.
Modification and Testing Figure 3-7. Communications Settings 3-10 3. Select the Oxinet Settings menu. 4. Set the IP address and Port for access to the server. 5. Select Add New Connection to set the access point (AP) and IP address for accessing the monitoring system. • Select the SSID menu and enter the SSID for the AP. • Select the Encryption Type menu and enter the security type of the current AP. • Unless the security type is Disable, set the Password in the Encryption Type menu.
System Performance Tests Figure 3-8. Add New Connection Menu Service Manual 6. Select the Select Wi-Fi Target menu and choose the desired settings. 7. To exit the Communication Settings menu, select Return. 8. From the Service Menu, select the Device Settings menu. 9. Use the Down button to activate the Wi-Fi.
Modification and Testing Figure 3-9. Device Settings Menu 10. Verify that the wireless status icon appears at the top of the screen and that the icon matches the current state of the wireless connection. Note: If the monitoring system does not contain the wireless option, the wireless status icons will not appear on the screen. Table 3-3.
Operational and Functional Tests Table 3-3. Wireless Status Icon Icon Description Wireless signal strength 3.4 3.4.1 Operational and Functional Tests General Operation Tests To perform general operation tests: 1. Set the monitoring system to Factory Defaults, which removes institutional default settings. For more information about factory defaults and options for saving monitoring system settings, reference the Operator’s Manual. 2.
Modification and Testing 4. Press and hold the Power On/Off button for approximately 1 second to turn the monitoring system on. 5. Pinch the ends of the finger sensor to open the sensor to its widest point. 6. After the monitoring system completes POST, verify the finger sensor LED is brightly lit. 7. Allow the sensor clip to close slowly. 8. Verify the LED intensity decreases as the LED approaches the optical sensor. 9. Open the sensor again and verify that the LED intensity increases. 10.
Operational and Functional Tests Figure 3-11. Sensor Port 2. Connect the OxiMax DS-100A sensor to the DEC-4 cable, then to a finger. 3. Press and hold the Power On/Off button for approximately 1 second to turn the monitoring system on. Alarm Audio Paused 1. Verify the SpO2 and pulse rate appear. 2. Select the Alarm Limits Menu. 3. Select Low SpO2. 4. Change Low SpO2 to 99%. Figure 3-12.
Modification and Testing 5. Select Low Pulse. 6. Change Low Pulse to 160 BPM. Figure 3-13. Low Pulse Alarm Limit of 160BPM 7. • The waveform tracks the pulse rate. • The pulse tone is audible. • SpO2 and pulse rate values have flashing yellow highlights behind them. Note: Depending on the live subject, an alarm might not be triggered using the Low SpO2 alarm limit of 99%. 8. 3-16 Confirm the following results: • The audible alarm sounds.
Operational and Functional Tests Figure 3-14. Alarm Audio Paused Setting of 30 Seconds 9. Exit the Service Menu. 10. As soon as the SpO2 Low alarm and Pulse Rate Low alarms sound, press the Audio Paused button to immediately pause the alarm tone. 11. With the alarm paused, verify the following: • Alarm remains silent for 30 seconds before the alarm tone is audible. • Audio Paused indicators light, and the Alarm Audio Paused messages appears in the display.
Modification and Testing 3. • The Audible Alarm sounds. • The following messages alternately appear in the display: Pulse Rate Low and SpO2 Low. In the Service Menu, select the Permission to Mute Alarm. Figure 3-15. Permission to Mute Alarm A confirmation message for the muted alarm setting appears. 4. 3-18 Select Yes.
Operational and Functional Tests Figure 3-16. Confirmation for Muted Alarm 5. Exit the Service Menu. 6. Access the Device Settings menu. 7. In the Device Settings Menu, access the Sound Settings menu. 8. In the Sound Settings menu, change the alarm volume to 0. 9. Verify the following: • Alarm audio is silent. • Audio Paused indicators appear. • Pulse tone is audible.
Modification and Testing To test the alarm volume 1. Press and hold the Power On/Off button for approximately 1 second to turn the monitoring system off. 2. Connect the DEC-4 pulse oximetry cable to the sensor port. 3. Connect the OxiMax DS-100A sensor to the DEC-4 cable, then to a finger. 4. Press and hold the Power On/Off button for approximately 1 second to turn the monitoring system on. 5. Access the Device Settings menu. 6. In the Device Settings menu, access the Sound Settings menu. 7.
Operational and Functional Tests Key Beep Volume Control A beep sounds each time a button is pressed, unless the Key Beep Volume setting is 0. To test the Key Beep volume 1. Access the Device Settings menu. 2. In the Device Settings menu, access the Sound Settings menu. 3. Press Down button to highlight Key Beep Volume, then press OK. 4. Press Up or Down button to adjust the key beep volume. The Key Beep Volume setting controls the volume (0-4) of key beeps. The default setting is 1. Figure 3-18.
Modification and Testing 2. Connect the DEC-4 pulse oximetry cable to the monitoring system Sensor Port. 3. Connect the OxiMax DS-100A sensor to the DEC-4 cable, then to a finger. 4. Press and hold the Power On/Off button for approximately 1 second to turn the monitoring system on. 5. Access the Device Settings menu. 6. In the Device Settings menu, access the Sound Settings menu. 7. Press Down button to highlight Pulse Volume, then press OK. 8.
Operational and Functional Tests 2. In the Device Settings menu, press the Up or Down button to highlight the Brightness Setting menu and then press OK to select the Brightness Setting menu. Figure 3-20. Brightness Setting 3. • Press Down button to decrease the brightness. • Press Up button to increase the brightness. Press OK to save the desired brightness. Save Spot Reading The Save Spot Reading function saves a point in time of the patient’s data. To save a spot reading: 1.
Modification and Testing 6. Highlight Save Spot Reading and press OK. The message “Spot Reading Saved” appears. Figure 3-21. “Spot Reading Saved” Message 3-24 7. Access the Monitoring History menu. 8. In the Monitoring History menu, select View Spot Data. 9. Verify the saved spot readings.
Operational and Functional Tests Figure 3-22. Monitoring History Spot Data Sensor Alarm Priority Settings Access the Sensor Alarm Priority Settings menu to change the alarm priority to Low, Medium, or High for: • Sensor Disconnect alarm • Sensor Off alarm • Sensor Failure alarm To change the Alarm Priority Setting for Sensor Disconnect: 1. Press and hold the Power On/Off button for approximately 1 second to turn the monitoring system off. Service Manual 2.
Modification and Testing 6. Verify that the Sensor Disconnect alarm occurs. 7. Access the Service Menu. 8. In the Service Menu, select the Sensor Alarm Priority Settings menu. 9. Set the Sensor Disconnect priority to High. Figure 3-23. Sensor Disconnect Alarm Priority Setting 10. Observe the monitoring screen. 11. Verify the following: • The SpO2 and pulse rate values are highlighted by flashing red boxes. • The High priority alarm sounds. • The message “Sensor Disconnect” appears.
Operational and Functional Tests 4. Press and hold the Power On/Off button for approximately 1 second to turn the monitoring system on. 5. When the monitoring system is powered on, disconnect the sensor from the finger. 6. Verify that the Sensor Off alarm occurs. Figure 3-24. Sensor Off Alarm Service Manual 7. Access the Service Menu. 8. In the Service Menu, Select the Sensor Alarm Priority Settings menu. 9. Set the High in the Sensor Off menu. 10. Go to the monitoring screen. 11.
Modification and Testing Screen Saver Screen Saver saves power by darkening the screen. The Screen Saver functions during periods when no alarm condition exists and the buttons are not pressed. To set the Screen Saver: 1. Press and hold the Power On/Off button for approximately 1 second to turn the monitoring system on. 2. Access the Service Menu. 3. In the Service Menu, Select the Power Saving Settings menu. 4. Select Screen Saver Time. 5. Set the desired number of minutes.
Operational and Functional Tests 8. 9. After 1 minute, verify the following: • The screen of the monitoring system is darkened. • The LED is flashing green. After pressing any button or when an alarm occurs, verify the following: • The screen of the monitoring system is brightened. • The LED lights green. Power Saving Power Saving turns the screen off after 10 minutes of inactivity. Power Saving functions when no alarm condition exists and the buttons are not pressed. To test the Power Saving: 1.
Modification and Testing Auto Power Off Auto Power Off turns the monitoring system off after the specified period of inactivity. Auto Power Off functions when no alarm condition exists, the buttons are not pressed for the specified period, the sensor is disconnected, and the sensor signal is lost. To test Auto Power Off: 1. Press and hold the Power On/Off button for approximately 1 second to turn the monitoring system on. 2. Access the Service Menu. 3.
Operational and Functional Tests 3.4.2 • The LED is off. • The monitoring system turns off automatically. Functional Tests To perform functional tests: 1. Read SRC-MAX Overview, p. 3-31 to become familiar with the pulse oximetry functional tester (Nellcor model SRC-MAX). Note: For the waveform tests, the display will show a pulse waveform of approximately 1/2-inch peak to peak (P-T-P) amplitude. Actual amplitude may vary but will be a reference for low pulse amplitude/low light patients. 2.
Modification and Testing Table 3-4. Functional Tests with SRC-MAX (Continued) Tests Modulation Level Test The test procedure simulates an OxiMax pulse oximetry sensor attached to a patient indicating low and high pulse strength. Light Level Test The test procedure simulates an OxiMax pulse oximetry sensor attached to a patient indicating low and high light level passing through the patient at the sensor site.
Operational and Functional Tests Figure 3-27. SRC-MAX OxiMax Oximetry Tester 1 DEC-4 Cable Connector 5 %SpO2 Select Button 2 Infrared LED Drive Indicator 6 % Modulation Select Button 3 Pulse Rate Selection Button 7 Battery Low Indicator 4 Light Level Selection Button 8 Red LED Drive Indicator BPM (PR) Test Service Manual 1. With the monitoring system turned off, connect the DEC-4 pulse oximetry cable to the sensor port. 2.
Modification and Testing Figure 3-28. SRC-MAX Tester-Generated Waveform 4. 5. 3-34 Verify the following: a. Audio alarm is active. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1/2-inch peak to peak (P-T-P) amplitude. Press the SRC-MAX PULSE RATE selection button. The SRC-MAX PULSE RATE 200 LED lights.
Operational and Functional Tests Figure 3-29. SRC-MAX Increase to 200 BPM Verify the following: 6. Service Manual a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. Flashing BPM indication in the range of 197 to 203. d. Pulse waveform of approximately 1/2-inch P-T-P amplitude. Press the SRC-MAX PULSE RATE selection button. The SRC-MAX PULSE RATE 60 LED lights.
Modification and Testing Figure 3-30. SRC-MAX Decrease to 60 BPM Verify the following: 3-36 a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1/2-inch P-T-P amplitude.
Operational and Functional Tests SpO2 1. Test Press the SRC-MAX %SpO2 selection button. The SRC-MAX %SpO2 90 LED lights. The monitoring system displays three dashes [ - - - ] until the %SpO2 stabilizes at a value in the range of 88 to 92. Figure 3-31. SRC-MAX %SpO2 Increase to 90 Verify the following: 2. Service Manual a. No audio alarm. b. %SpO2 indication in the range of 88 to 92. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1/2-inch P-T-P amplitude.
Modification and Testing Figure 3-32. SRC-MAX %SpO2 Decrease to 75 Verify the following: 3-38 a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1/2-inch P-T-P amplitude.
Operational and Functional Tests Modulation Level Test 1. Press the SRC-MAX MODULATION selection button. The SRC-MAX MODULATION LED lights. The pulse amplitude waveform increases in amplitude and then stabilizes at a P-T-P amplitude of approximately 1 inch. Figure 3-33. SRC-MAX High Modulation Verify the following: 2. Service Manual a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d.
Modification and Testing Figure 3-34. BPM of 200 with High Modulation Verify the following: 3. 3-40 a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. Flashing BPM indication in the range of 197 to 203. d. Pulse waveform of approximately 1-inch P-T-P amplitude. Press the SRC-MAX PULSE RATE selection button. The SRC-MAX PULSE RATE 60 LED lights. The monitoring system registers that the pulse rate decreases and stabilizes at a value in the range of 57 to 63.
Operational and Functional Tests Figure 3-35. BPM of 60 with High Modulation Verify the following: 4. Service Manual a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1-inch P-T-P amplitude. Press the SRC-MAX %SpO2 selection button. The SRC-MAX %SpO2 90 LED lights. The monitoring system displays three dashes [ - - - ] until the %SpO2 stabilizes to a value in the range of 88 to 92.
Modification and Testing Figure 3-36. %SpO2 of 90 with High Modulation Verify the following: 5. 3-42 a. No active audio alarm. b. %SpO2 indication in the range of 88 to 92. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1-inch P-T-P amplitude. Press the SRC-MAX %SpO2 selection button. The SRC-MAX %SpO2 75 LED lights. The pulse oximeter displays three dashes [ - - - ] until the %SpO2 stabilizes to a value in the range of 73 to 77.
Operational and Functional Tests Figure 3-37. %SpO2 of 75 with High Modulation Verify the following: 6. Service Manual a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1-inch P-T-P amplitude. Press the SRC-MAX MODULATION selection button. The SRC-MAX MODULATION LED lights.
Modification and Testing Figure 3-38. %SpO2 of 75 with Low Modulation Verify the following: 3-44 a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1/2-inch P-T-P amplitude.
Operational and Functional Tests Light Level Test 1. Press the SRC-MAX LIGHT LEVEL selection button. The SRC-MAX LIGHT LEVEL LED lights. The waveform amplitude initially flatlines and then stabilizes at the previous amplitude. Note: Flat-lining is the only indication of a light change at the measurement site. For the monitoring system to recover and display normally is an indication of proper operation with light changes. Figure 3-39. High Light Condition Verify the following: 2. Service Manual a.
Modification and Testing Figure 3-40. BPM of 200 with High Light Condition Verify the following: 3. 3-46 a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. Flashing BPM indication in the range of 197 to 203. d. Pulse waveform of approximately 1/2-inch P-T-P amplitude. Press the SRC-MAX PULSE RATE selection button. The SRC-MAX PULSE RATE 60 LED lights.
Operational and Functional Tests Figure 3-41. BPM of 60 with High Light Condition Verify the following: 4. Service Manual a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1/2-inch P-T-P amplitude. Press the SRC-MAX %SpO2 selection button. The SRC-MAX %SpO2 90 LED lights. The monitoring system displays three dashes [ - - - ] until the %SpO2 stabilizes to a value in the range of 88 to 92.
Modification and Testing Figure 3-42. %SpO2 of 90 with High Light Condition Verify the following: 5. 3-48 a. No audio alarm. b. %SpO2 indication in the range of 88 to 92. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1/2-inch P-T-P amplitude. Press the SRC-MAX %SpO2 selection button. The SRC-MAX %SpO2 75 LED lights. The monitoring system displays three dashes [ - - - ] until the %SpO2 stabilizes to a value in the range of 73 to 77.
Operational and Functional Tests Figure 3-43. %SpO2 of 75 with High Light Condition Verify the following: 6. Service Manual a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1/2-inch P-T-P amplitude. Press the SRC-MAX MODULATION selection button. The SRC-MAX MODULATION LED lights.
Modification and Testing Figure 3-44. High Modulation and High Light Condition Verify the following: 3-50 a. Active audio alarm. b. Flashing %SpO2 indication in the range of 73 to 77. c. BPM indication in the range of 57 to 63. d. Pulse waveform of approximately 1-inch P-T-P amplitude. 7. Reset the Power On Settings to Factory Defaults. Doing so removes any saved settings and clears the Last Setting option. 8. Turn off the monitoring system.
Verification Check Sheets 3.5 Verification Check Sheets Model Name 3.5.
Modification and Testing Screen Saver Pass / Fail Power Saving Pass / Fail Auto Power Off Pass / Fail Functional tests SpO2 90 +/- 2% Pass / Fail Value: % SpO2 75 +/- 2% Pass / Fail Value: % Pulse rate 200 +/- 3 bpm (high priority alarm condition) Pass / Fail Value: bpm Pulse rate 60 +/- 3 bpm Pass / Fail Value: bpm Modulation level Pass / Fail Light level Pass / Fail TESTS PERFORMED BY: 3-52 SIGNATURE and DATE: Service Manual
4 Troubleshooting 4.1 Overview This chapter describes how to troubleshoot common problems that may occur while using the Nellcor™ Portable SpO2 Patient Monitoring System. 4.2 WARNING: Only a qualified service technician should remove the cover or access or replace any internal parts. Troubleshooting Guide Potential problems with the monitoring system are separated into categories and listed in Table 4-1 on page 4-2.
Troubleshooting 4.2.1 Error Conditions by Category Table 4-1. Error Conditions and Resolutions Error Condition by Category Cause or Checkpoint Corrective Action Power Monitoring system does not turn on when Power On/Off button is pressed. Low battery/critically low battery condition Monitoring system’s Power On/ Off button must be held for 1 second. Press and hold the Power On/Off button for 1 second. Battery is not properly seated.
Troubleshooting Guide Table 4-1. Error Conditions and Resolutions (Continued) Error Condition by Category Cause or Checkpoint LCD is visibly cracked or broken Corrective Action Replace LCD. Sound No sound during POST Speaker cable is loose or disconnected. Reseat speaker cable in main board. Speaker is malfunctioning. Ensure connector on main board is firmly seated. If problem persists, replace speaker. Main board is malfunctioning. Replace main board.
Troubleshooting Table 4-1. Error Conditions and Resolutions (Continued) Error Condition by Category Cause or Checkpoint Corrective Action Unable to get reliable readings because of substances on patient’s skin or nails, or because of excessive patient motion. Remove items of interference (electrosurgical device, cell phone, nail polish, cream). Sensor not attached correctly. Check all connections and reposition if necessary Sensor is malfunctioning. Replace sensor or cable.
Troubleshooting Guide Table 4-1. Error Conditions and Resolutions (Continued) Error Condition by Category Date and time incorrect on LCD and in monitoring history download Wireless communication not activated Cause or Checkpoint Corrective Action Date and time not set correctly during installation. Set date and time for locale and time zone. Coin cell battery depleted or removed and replaced.
Troubleshooting 4.2.2 System Error Codes When the monitoring system detects an error condition, an error code is displayed on the LCD. Table 4-2 provides a list of system error codes and problem identification. If an error code occurs, turn the monitoring system off and then on again. Note: If the alarm message still appears, record the error code, take the monitoring system out of service, and contact Covidien Technical Services for advice on remedial action. Reference Technical Services, p. 1-10.
Troubleshooting Guide Table 4-2.
Troubleshooting Table 4-2.
Return 4.3 Return Contact Covidien or a local Covidien representative for shipping instructions, including a Returned Goods Authorization (RGA) number. Reference Obtaining Technical Assistance, p. 1-10. Unless otherwise instructed by Covidien, it is not necessary to return sensors or other accessory items with the monitoring system. Pack the monitoring system in its original shipping carton, as shown in Figure 4-1 on page 10.
Troubleshooting Figure 4-1.
5 Repair 5.1 Overview This chapter provides trained service technicians with information about how to repair the Nellcor™ Portable SpO2 Patient Monitoring System. WARNING: To avoid possible injury, do not attempt to service the monitoring system if there are any signs of burning or smoking coming from the monitoring system. WARNING: To prevent possible electric shock or explosion, do not service the monitoring system in a flammable environment or in an excessively moist environment.
Repair 5.2 Spare Parts and Accessories Covidien Technical Services provides technical assistance and replacement parts. Contact Covidien or your local Covidien representative to obtain replacement parts. Reference Technical Services, p. 1-10 for contact information. When ordering parts, refer to them by the part names and part numbers, as shown in Figure 5-1 and listed in Table 5-1 on page 5-3.
Spare Parts and Accessories Table 5-1.
Repair Figure 5-2. Standard Cover (3 Shown) and Ambulatory Cover Table 5-2. Monitoring System Accessories Description 5.
Battery Replacement 5.4 Battery Replacement The monitoring system comes with four AA lithium batteries. 5.4.1 WARNING: Explosion hazard — Use only AA size batteries. Do not use different types or models of batteries together, such as dry batteries, nickel-metal hydride batteries, or Lithium-ion batteries. Remove the Batteries 1. Turn the monitoring system off. 2. Remove the battery cover (3) on the rear housing. 3. Remove the four AA batteries (2). Figure 5-3.
Repair 5.4.2 Replace the Batteries Caution: Use only AA size batteries. Reference Figure 5-3: 1. Insert four AA batteries. Ensure the correct orientation of each battery (+/-). 2. 5.5 Close the battery cover. Disassembly and Reassembly WARNING: Only qualified service personnel should open the monitoring system casing, remove and replace components, or make adjustments.
Disassembly and Reassembly 5.5.1 Front and Rear Assembly Replacement Caution: Observe ESD (electrostatic discharge) precautions when disassembling and reassembling the monitoring system and when handling any of its components. Caution: Ensure the work surface is clean and free of debris. Note: The batteries should be replaced before monitoring system repairs when possible. Disassemble the Front and Rear Assemblies Service Manual 1. Turn the monitoring system off. 2. Remove the batteries.
Repair Figure 5-4.
Disassembly and Reassembly Reassemble the Front and Rear Assemblies Caution: Over-tightening could strip out the screw holes, rendering the rear assembly unusable. Reference Figure 5-4 on page 5-8: 1. Place the monitoring system’s slide cover (2) inside the rear assembly. 5.5.2 2. Connect the speaker harness (3) to the main board. 3. Gently align and place the front assembly (1) onto the rear assembly (4). 4. Replace the six screws (5) in the rear assembly and tighten each one to 4.0 ±1.
Repair Figure 5-5. NELL1SR Board Replacement Replace the NELL1SR Board Reference Figure 5-5: 1. Align the connectors on the NELL1SR board (1) with the connectors on the main board (2) as follows: • Align the NELL1SR J4 connector with the J10 connector on the main board. • Align the NELL1SR J5 connector with the J12 connector on the main board. Press the NELL1SR board down to seat the connectors. 5-10 Caution: The NELL1SR board can only be installed one way.
Disassembly and Reassembly 5.5.3 Main Board Replacement Remove the Main Board 1. Turn the monitoring system off. 2. Complete the steps outlined in Remove the Batteries, p. 5-5. 3. Complete the steps outlined in Disassemble the Front and Rear Assemblies, p. 5-7. 4. Move the rear assembly off to the side, retaining the front assembly (1) on the static-free work surface. 5. Remove the NELL1SR board (7) from the main board as outlined in Remove the NELL1SR Board, p. 5-9. 6.
Repair Replace the Main Board Reference Figure 5-6: 1. Using the #1 Phillips screwdriver, insert the single screw (7) into the main board (6) and into the screw hole in the front housing (1). Tighten each screw to 2.0 ± 0.5 kgf-cm. 5.5.4 2. To replace the connector housing (4), connect the PI cable (5) on the connector housing to the main board. 3. Connect the keypad cable (3) to the J8 connector on the main board. 4. Connect the LCD cable (2) to the J7 connector on the main board. 5.
Disassembly and Reassembly Figure 5-7. Coin Cell Battery Replacement Replace the Coin Cell Battery 5.5.5 1. Position the new battery with the positive side facing up. The positive side has printing and a plus sign (+) stamped into it. 2. Press the coin cell battery (2) into place on the main board (1) until the locking tab clicks. 3. Complete the steps outlined in Replace the Main Board, p. 5-12. Wireless Board Replacement Remove the Wireless Board Service Manual 1.
Repair 4. Move the rear assembly off to the side, retaining the front assembly (2) on a staticfree working surface. 5. Complete the steps outlined in Remove the Main Board, p. 5-11. 6. Set the main board (1) down on the static-free work surface. 7. Carefully separate the connection between the wireless board (3) and main board. 8. Gently lift the wireless board away from the main board. Figure 5-8. Wireless Board Replacement Replace the Wireless Board 5-14 1.
Disassembly and Reassembly 5.5.6 4. Complete the steps outlined in Reassemble the Front and Rear Assemblies, p. 5-9. 5. Complete the steps outlined in Replace the Batteries, p. 5-6. LCD Replacement Remove the LCD 1. Turn the monitoring system off. 2. Complete the steps outlined in Remove the Batteries, p. 5-5. 3. Complete the steps outlined in Disassemble the Front and Rear Assemblies, p. 5-7. 4. Complete the steps outlined in Remove the Main Board, p. 5-11. 5.
Repair Replace the LCD 5.5.7 1. Place the new LCD (2) on the front housing (1). 2. Complete the steps outlined in Replace the Main Board, p. 5-12. 3. Complete the steps outlined in Reassemble the Front and Rear Assemblies, p. 5-9. 4. Complete the steps outlined in Replace the Batteries, p. 5-6. PI Cable and Cable Housing Replacement Remove the PI Cable and Cable Housing 5-16 1. Turn the monitoring system off. 2. Complete the steps outlined in Remove the Batteries, p. 5-5. 3.
Disassembly and Reassembly Figure 5-10. PI Cable and Cable Housing Replacement Replace the PI Cable and Cable Housing Service Manual 1. Place the front assembly on a static-free work surface with the inside of the assembly facing up. 2. Orient the cable housing and attached PI cable (2) so that the PI cable is on the left relative to the inside top of the front housing. 3. Press the cable housing in place in the rear housing. 4.
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Index A accessories ............................... 5-2, 5-4 Alarm Audio Paused .....................3-14 Alarm Volume Control 3-22, 3-23, 3-25, ........................ 3-28, 3-29, 3-30 B batteries, replacement ...................5-5 BPM test ........................................3-33 C cable housing replacement ..........5-16 Cautions accessory equipment ...................1-8 equipment inspection .................1-4 excessive environmental conditions 1-5 liquid ingress ...............................
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Part No. 10116765 Rev A (A7390-1) 2014-05 © 2014 Covidien. Manufactured for Covidien llc 15 Hampshire Street, Mansfield, MA 02048 USA. Covidien Ireland Limited, IDA Business & Technology Park, Tullamore. www.covidien.com [T] 1.800.
