GE Cardiocap 5 Service Manual

							
Planned Maintenance 
3.2 Planned maintenance checks 
1. Visual inspection 
1. Switch the monitor to standby and disconnect all cables from the rear of the monitor. 
2. Check the external parts of the monitor. For example, check that the power cord receptacle is 
intact and the D-fend latch moves properly. 
3. Check that the markings of the mains fuses correspond to the fuse plate. 
 
2. Parts replacement 
1. Dissamble the frame (see section 7.3.1). 
2. Replace these items in the gas unit: occlusion filter, zero absorber, Nafion tubing, and  
OM reference filter.  Also replace the D-fend, D-fend O-ring, and sampling line. 
NOTE: Use only Datex-Ohmeda sampling lines to ensure proper function. 
 
Figure 3-1.  Nafion tube and filters to replace in gas unit 
Occlusion filter
OM reference 
Zero
Nafion tube
3. Clean or replace the fan filter. 
4. Clean the recorder unit and replace the recorder paper, if necessary.  
5. Reconnect all cables, then perform a gas sampling system leak test (see section 7.4.7). 
6. Reassemble the frame. 
 
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3. Functional inspection 
1. Connect the power cord and check that the Battery charge status LED turns on or flashes. 
2. Switch on the monitor and check that it starts up as described below: 
• Both alarm LEDs flash On and Off. 
• The start-up sound is heard from the speaker. 
• The normal monitoring screen appears and no error messages are displayed.  
NOTE: “Check network connectors” is displayed if the N-XNET or N-XDNET option is installed. 
• The time and date are displayed; adjust if they are incorrect. 
• The battery charging symbol is in the upper right corner of the screen: 
 
• The fan starts running after about 20 seconds. 
• If the monitor contains a recorder, start-up information prints. Verify the time and date. 
Enter the Keyboard service menu (illustrated in the Service Menus chapter) by pressing the 
Comwheel and selecting:  
Monitor Setup 
Install/Service (password 16-4-34) 
Service (password 26-23-8) 
Keyboard 
To test the function of specific direct access keys, select Dummy Press. 
Press the Silence Alarms key and check that the keypress generates a sound from the speaker 
and the corresponding text in the service data screen changes color. Repeat for the following 
keys:  Trends, ECG, NIBP, and Normal Screen. 
3. Go to the Monitor – Voltages service menu (return to the Service View menu and select  
Monitor – Voltages). Check that the supply voltages are within the limit values: 
Voltages Mains power ON Mains power OFF 
VDD/BAT 14.3 to 16.2 10 to 13 
VIN 15VB 10 to 14.5 10 to 13.5 
VDD 15.0 to 16.5  
+12V 11.4 to 12.6  
+15VD 14.25 to 15.85  
+15V 14.4 to 15.6  
–15V 15.6 to 14.4  
+2.5VREF 2.40 to 2.54  
TEMP 10 to 60  
BATVOLT 10 to 14.5 10 to 13.5 
VDD/TEMP OK 0 1 
CHG ON 1 0 
D Sync test count 0  
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Planned Maintenance 
4. Check the capacity time of the backup battery: 
Disconnect the power cord (without switching the monitor to standby). 
Note the time and make sure that the monitor continues to run normally with the battery for at 
least 15 minutes. The battery indicator should appear on the screen: 
 
NOTE: You can continue the check while the monitor is powered by batteries. 
5. Configure the monitor screen according to the monitor configuration so that all parameter 
information is displayed.  
NOTE: The Resp parameter has to be selected in one of the Waveform Fields or Digit Fields 
before the respiration measurement can be turned on. 
 
4. ECG measurement test 
1. Return to the Service View menu and select Modules – ESTP : ECG to enter the ESTP : ECG service 
menu. Check that: 
• The Timeouts, Bad checksums, and Bad c-s by mod values are not increasing faster than  
50 per second.  
• The ECG/RESP board memories passed the internal memory test (that is, RAM, ROM, and 
EEPROM all state OK). 
2. Connect a 5-lead ECG cable to the module. Check that the Cable type shows 5 lead. If it shows  
3 lead, make sure the 5-lead ECG cable being used contains the necessary wiring for cable 
recognition (pins 0, 8, and 9 are connected together). 
3. Check that each Electrode shows OFF and the “Leads Off” message is displayed. 
Connect the patient simulator. Check that parameter information is displayed as configured. 
Check that the waveforms correspond to the simulator settings. Switch off the simulator and 
check that the “Asystole” and “Apnea” messages are displayed. 
 
5. Temperature measurement test 
1. Return to the Modules service menu and select ESTP : STP to enter the ESTP : STP service menu. 
Check that the STP board memories passed the internal memory test (that is, RAM, ROM, and 
EEPROM all state OK). 
2. Check the temperature calibrations with the temperature test plugs. Calibrate if necessary. 
3. Check that the protection for temperature calibration is on: 
Protect key in the menu should state OFF.  Protect mode should state ON. 
 
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6. Non-invasive blood pressure (NIBP) measurement test 
NOTE:  See the Service Menus chapter for illustrations of the service menus used for the NIBP test. 
1. Return to the Modules service menu and select NIBP to enter the NIBP service menu. Check that 
NIBP board memories passed the internal memory test (RAM, ROM, and EEPROM all state OK). 
2. From the NIBP service menu, select Calibrations to enter the Calibration service menu. Perform 
the Active Leak Test to check the NIBP tubing system for leaks:  the pressure must not drop by 
more than 5 mmHg (0.7 kPa) per minute. 
3. Check the NIBP calibration with 200 mmHg (26.7 kPa) pressure and calibrate if necessary. 
4. Return to the NIBP service menu and select Pneumatics to enter the Pneumatics service menu. 
Check the Watchdog timer activation pressure:  the audible signal must activate at 3 to 8 mmHg 
(0.4 to 1.1 kPa).  
If necessary, adjust the limit with the trimmer on the NIBP board and recalibrate NIBP. 
5. Return to the NIBP service menu and select Watchdog to enter the Watchdog service menu. 
Check the NIBP watchdog timer. 
The time for the infant test should be 60-70 seconds. 
6. Return to the NIBP service menu and select Safety Valve to enter the Safety Valve service menu. 
Check the safety valve functions. 
NOTE: Make sure the pressure manometer can measure pressures over 300 mmHg (40.0 kPa). If 
such a pressure manometer is not available, perform the check with an adult cuff that is 
connected around a round object, such as a calibration gas bottle. 
The Max press and 2 s after stop pressure values for both transducers should be within 290 to 
330 mmHg (38.7 to 44.0 kPa) for Adult and 154 to 165 mmHg (20.5 to 22.0 kPa) for Infant. 
7. Connect an infant cuff to the monitor. Start the measurement and check that the infant cuff is 
identified correctly. Cancel the measurement. 
8. Attach an adult NIBP cuff to your arm and perform one NIBP measurement. Check that the cuff is 
identified correctly (for example, Adult briefly appears in the NIBP digit field). 
Check that the module gives a reasonable measurement result. 
 
7. SpO2 measurement test 
1. Check that “No probe” is displayed when an SpO2 sensor is not connected to the monitor.  
Connect an SpO2 finger sensor to the monitor (but not to a finger). Check that “Probe off”or 
“Check probe” is displayed. The Pulse search message may be displayed first. 
2. Attach the SpO2 sensor to a finger and check that the pleth waveform is displayed and the SpO2 
value is in the expected range. Check that the HR value is calculated from SpO2 when ECG and 
InvBP (P1/P2) cables are not connected. 
3. Remove the SpO2 sensor from your finger and check that “Probe off” or “Check probe” is 
displayed.  
4. Disconnect the sensor from the monitor and check that “No probe” is displayed. 
 
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Planned Maintenance 
8. Invasive blood pressure measurement test 
1. Check the InvBP channels with a patient simulator. The values and waveforms should correspond 
to the simulator settings.  
NOTE: If you evaluate the measurement accuracy, remember to add the simulator’s accuracy 
specification to the one of the monitor. 
2. Calibrate InvBP channels if necessary. 
 
9. Gas measurement test 
NOTE:  See the Service Menus chapter for illustrations of the service menus used for the gas 
measurement test. 
1. Check that the fan in the gas measurement unit is running. 
NOTE: If you just turned the monitor ON, you have to wait until the Calibrating gas sensor 
message disappears from the screen before entering the Gas Unit service menu. 
2. Return to the Modules service menu and select Gas Unit – General. Check that the displayed 
module configuration corresponds with the configuration of the monitor. 
3. Return to the Gas Unit service menu and select Gases. Check that the displayed Ambient value 
corresponds with the current ambient pressure (± 20 mmHg) 
4. Perform a sampling system leak test. 
5. Check that the flow rates are within the following ranges: 
Sampling flow (ml/min) 180-220 
Reference flow (ml/min) 31-45 
Adjust the flow rates if necessary. 
6. Perform a gas calibration. 
NOTE: Do not calibrate the gas measurement until the monitor has warmed up for 30 minutes. 
 
10. Anesthetic agent identification test 
NOTE:  Use only the recommended Datex-Ohmeda calibration gas (see Recommended tools and 
accessories earlier in this chapter).  
While displaying the Gases service menu, feed the calibration gas continuously for at least  
30 seconds and check that the screen shows: 
• The ID. is DES. 
• The ID unrel. value is lower than 50. 
If the value is higher, recalibrate the agent identification and check the value again. 
 
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11. Spirometry test 
1. Perform the spirometry leakage test and calibration (see section 7.4.9).  
2. With a sample line attached to the D-lite sensor, breathe through the wider side of the D-lite. 
Check that the flow waveform moves downward when you breathe in, and upward when you 
breathe out. 
 
12. Gas sampling line and D-fend check 
1. Block the tip of the sampling line with your finger and check that the “Sample line blocked” 
message is displayed on the monitor screen within 30 seconds. 
2. Detach the D-fend and check that the”Check D-fend” message is displayed on the monitor screen 
within 30 seconds. 
3. Breathe once into the sampling line and check that the response time of the CO2 curve is normal. 
 
13. Trend test 
Check that the monitor is capable of storing the trend information and temporary settings for over  
2 minutes while in standby. 
 
14. Watchdog test 
In the Watchdog Tests service menu (Monitor – Watchdog Tests), check that the monitor resets and 
restarts properly. 
NOTE: Restarting should occur within a few seconds. 
 
15. Recorder test 
1. Open the paper compartment cover. Check that the “Recorder: Cover open” message appears on 
the screen, then close the cover. 
2. Press the Record Waveform/Stop key on the recorder and check that the recorder starts 
recording the selected waveforms. Press the key again to stop recording. 
3. Press the Record Trend/Stop key on the recorder and check that the recorder starts recording the 
selected trends. Press the key again to stop recording. 
Check that the quality of the recording is acceptable. 
 
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Planned Maintenance 
16. Network test 
1. Check that the Mon-Net cable connector and the Identification plug are clean and intact, then 
connect them to the monitor. 
Check the connection to the network by checking the states of the Network connection LEDs 
between the connectors: 
Yellow --> should flash intermittently 
Green --> should be lit continuously 
2. Check that the monitor connects to the Datex-Ohmeda Network (that is, the network symbol 
 is displayed on the upper right corner of the screen). 
NOTE: If the battery is being charged, the battery charging symbol is displayed instead of the 
network symbol. 
A message regarding the connection to the Datex-Ohmeda Information Center should appear in 
the message field on the screen. 
3. In the Communication service menu (Monitor – Communication), check that: 
• The Location ID number matches with the ID plug connected to X3. 
• The Packets In and Bytes In are increasing slowly. 
• The Packets Out and Bytes Out are increasing fast. 
• Connections shows the names of the connected networks. 
• The counters for data errors (CRC, Frame, Transm.) are stable 
NOTE: The counters may show values greater than 0 (zero), however, a continuous increase in any 
value indicates a problem. 
4. Check that the counters for hardware errors (Intern., Missed, FIFO, Overrun) all show 0. 
 
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17. Data card test 
1. Insert a memory card labeled Menu into the front-most memory card slot. Check that the 
“Menu card inserted” message appears in the message field. 
2. Insert a memory card labeled Data into the second slot. Check that the Data card inserted 
message appears in the message field. 
3. Check that some trend information is available in trend memory for monitored parameters. Erase 
the trends. Check that the trends are properly erased.  
Reload the trends from the Data card. To do so, select Patient Data – Patient from card.  Then, 
select the last saved file and select Load.  
After the monitor has loaded the data, check that the trends are available again. 
4. Display the Module Status service screen (Modules – More Modules – Memory Module) and 
check that: 
• Module present and Module active state Yes 
• RAM, ROM, PCMCIA, and EEPROM all state OK. 
• The Card type for SLOT 1 is MENU. 
• The Card type for SLOT 2 is DATA. 
• The File system is ATA. 
5. Check that the rest of the information is reliable and no errors have been detected. 
 
18. Service log check 
1. Enter the Service Log menu and check for possible problems. If the monitor contains a recorder, 
record the service log data by selecting Record Log. 
2. Clear the content of the service log by selecting Reset Log. 
 
19. Electrical safety check 
1. Perform an electrical safety check and leakage current test. 
2. Check that the monitor functions normally after performing the electrical safety check. 
3. Switch the monitor to standby, disconnect the power cord, and perform final cleaning. 
4. Fill in all necessary documents. 
 
 
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Planned Maintenance Form 
Planned Maintenance Form 
Datex-Ohmeda Cardiocap/5 
Customer  
Service  
Service Engineer  Date  
Monitor Configuration 
Monitor model: Hemodynamic model  
F-MX  Hemodynamic model with gas measurement 
F-MXG  
 
Measurement options Measurement options (SpO2) 
N-XP Two invasive pressure channels and 
second temperature (T2)  N-XOSAT Datex-Ohmeda enhanced pulse 
oximetry  
N-XC CO2  N-XNSAT Nellcor compatible pulse 
oximetry  
N-XCO CO2, N2O, Patient Oxygen  Data collection and data management options 
N-XCAiO CO2, anesthetic agents, agent 
identification, N2O, Patient Oxygen  N-XREC Recorder  
N-XV Patient Spirometry  N-XNET Network  
N-XNMT NeuroMuscular Transmission (NMT)  N-XDNET Data card and Network  
Planned Maintenance Checks 
OK = Test OK N.A. = Test not applicable Fail = Test Failed 
 OK N.A. Fail 
1. Visual inspection    
2. Parts replacement (note which parts were replaced below)    
 Occlusion filter  D-fend O-ring (2 pieces) 
 Zero absorber  Sampling line, 3.0 m 
 Nafion™ tubing   Fan filter (optional) 
 OM reference filter  Recorder paper (optional) 
 D-fend  Other _______________________________ 
 
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Planned Maintenance Form 
 OK N.A. Fail 
3. Functional inspection    
4. ECG measurement test    
5. Temperature measurement test    
6. Non-invasive blood pressure (NIBP) measurement test    
7. SpO2 measurement test    
8. Invasive blood pressure measurement test    
9. Gas measurement test    
10. Anesthetic agent identification test    
11. Spirometry test    
12. Gas sampling line and D-fend check    
13. Trend test    
14. Watchdog test    
15. Recorder test    
16. Network test    
17. Data card test    
18. Service log check    
19. Electrical safety check    
 
Notes:  ______________________________________________________________________________ 
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Signature:  ___________________________________________________________________________ 
 
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