GE Cardiocap 5 Service Manual

							
Service Procedures 
7.4.7 Gas sampling system leak test 
1. To enter the Gases service menu from the Service View menu, select 
Modules – Gas Unit – Gases 
2. Prevent the monitor from performing the normal occlusion functions, such as controlling the 
valves, by turning the pump OFF, then ON again from the menu. 
3. Open the rear cover and block the reference gas connector. 
4. Connect a flow cassette with high-flow resistance (50/1.1) to the end of the sampling line. 
5. Check the Amb-Work value that is displayed. When the value exceeds 170 mmHg, connect the 
other port of the flow cassette to the sample-gas-out connector and switch the pump off. 
6. Wait until pressure inside the sampling system stabilizes, then check the Amb-Work value. The 
value, or pressure inside the sampling system, should not drop more than 6 mmHg in one minute. 
7. If the pressure drops more, first ensure the connections you have made and then repeat the test. 
7.4.8 Flow rate checks and adjustments 
NOTE: Let the monitor run for 15 minutes before measuring flow rates. 
A flowmeter with a low flow resistance and that is capable of measuring low flow rates is required for 
measuring flow rates. A sampling line of normal length must be connected to the monitor, as its length 
has a considerable affect on the flow.  
If any flow rates are not correct, replace the D-fend water trap. Then, recheck the incorrect flows. 
Flow rate checks 
You check and adjust the sampling flow rate from the Gases service menu. 
1. To enter the Gases service menu from the Service View menu, select Modules – Gas Unit – Gases 
2. Wait until the Sample Flow value shown in the Gases service menu is near 200 ml/minute. 
3. Connect a flowmeter to the 3-meter sampling line (use a 2-meter line for the N-XCAiO and N-XV 
options). Check that the sample flow reading on the flowmeter is within 180-220 ml/minute. 
4. Connect the flowmeter to the reference gas connector on the front panel to check the reference 
flow of the oxygen measuring unit. Check that the reference flow reading on the flowmeter is within 
31 to 45 ml/minute. 
Flow rate adjustment 
NOTE: Before adjusting the sampling flow, make sure there are no leaks in the sampling system.  
To adjust the sampling flow rate: 
1. In the Gases service menu, select Sample gain adj. 
2. Turn the ComWheel counterclockwise to increase the sampling flow (clockwise to decrease). A 
0.050 change in the Gain value changes the flow by approximately 10 ml/minute. 
3. After you change the gain, wait until the Sample Flow value on the screen is near the original. 
Then, check that the sample flow (flowmeter reading) is within 180-220 ml/minute. 
4. In the service menu, set the Zero valve to ON. The Sample Flow value should not change more 
than 20 ml/minute (30 ml/minute if the absorber is connected). 
5. After adjusting the sample flow rate, connect the flowmeter to the reference gas tube. Check that 
the reference flow of the oxygen measuring unit (flowmeter reading) is within 31 to 45 ml/minute. 
This flow rate is not adjustable. 
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Cardiocap/5 Technical Reference Manual 
7.4.9 Spirometry leakage test and calibration 
1. To enter the Spirometry service menu from the Service View menu, select  
Modules – Gas Unit – Spirometry. 
2. Connect a spirometry tube to the monitor front panel connector. Connect a D-lite sensor to the 
tube.  
Spirometry leakage test 
3. Block the D-lite sampling line port with, for example, a luer stopper.  
4. Grasp the D-lite and tightly occlude both ends, using your fingers or both hands to create pressure 
inside the D-lite. 
5. Check that the Aw Pressure value on the Service Data screen is near 5 cmH2O. 

						

							
Service Procedures 
Insert the calibration gas regulator on the gas cylinder. Connect a silicon hose between the regulator 
and the flow meter. Block the regulator overflow port and open the regulator. Check the flow rate from 
the flow meter and verify that the flow is within the specification. 
Gas calibration 
Perform a gas calibration every 6 months or whenever there are indications of errors in the gas 
readings. The time of the last calibration is shown near the bottom of the Gas Calibration menu. 
Gas calibration is not available during the first five minutes of monitoring and during a gas sampling 
warning. 
NOTE: 
• During gas calibration, % units are always used for CO2 regardless of selected measuring units. 
• Anesthetic agent is always calibrated with Desflurane.  
Calibration equipment and use 
• Use only Datex-Ohmeda calibration gas to calibrate the gas measurement. Otherwise, the 
calibration will not succeed. 
• The calibration gas container may be used until the pressure indicator reaches the red zone. 
• If separate gas containers are used, each gas must be calibrated separately. 
• If you use an older brass regulator, the feeding pressure should be adjusted between 5 and 7 psi. 
The use of an old regulator with the new aerosol containers requires an adapter available from GE 
Healthcare. For ordering details, see the Datex-Ohmeda Supplies and Accessories Catalog. 
NOTE: The calibration procedure for Critical Care and Anesthesia monitors is the same except that 
users of Critical Care monitors select Ventilation (not Airway Gas) from the Parameters menu. 
1. Power on the monitor. For maximum accuracy, let the monitor warm up for 30 minutes. 
2. Attach the regulator to the gas container. 
 
Figure 7-5. Attaching the regulator 
3. Attach a new sampling line to the water trap. Connect the loose end of the sampling line to the 
regulator on the gas container. 
 
Figure 7-6. Connecting a sampling line and feeding gas 
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Cardiocap/5 Technical Reference Manual 
4. To enter the Gas Calibration menu, press the ComWheel and select Parameters – Airway Gas. 
The Gas Calibration menu item remains gray (inactive) until the ‘Calibrating gas sensor’ message 
is no longer displayed. 
5. Select Gas Calibration. 
6. Wait until the ‘Zero ok’ and then ‘Feed gas’ messages appear on the screen after each gas. 
If the ‘Zero error’ message is displayed, press the Normal Screen key and repeat the calibration 
procedure. If the problem persists, the unit may require service. 
7. Open the regulator and feed the calibration gas until ‘Adjust’ appears, then close the valve. 
NOTE:  When the monitor is in automatic agent ID mode and it detects a calibration gas and no 
anesthetic agent (when using the Datex-Ohmeda Quick Cal calibration gas, for example), the ‘Cal 
gas found’ message is displayed. If the identification sensor fails, the ‘Agent id inop’ message is 
displayed. 
8. Check that the displayed gas values match the values on the calibration gas container. 
Calibration adjustments 
Calibration adjustments may be required if the gas values displayed during calibration do not match 
the values on the calibration gas container. 
If adjustments are required: 
 
1. Select Gas Calibration in the Airway Gas menu. 
2. Turn the ComWheel to highlight the first gas to be 
adjusted and press the ComWheel. 
3. Turn the ComWheel until the displayed value matches 
the desired value. Press the ComWheel to confirm the 
adjustment. 
4. Repeat steps 2 and 3 for each gas. 
 
Autozeroing intervals 
Autozeroing intervals after startup are as follows: every 5 minutes for the first 15 minutes, then every 
15 minutes for the next 45 minutes, and every hour thereafter. Autozeroing may also occur after agent 
selection. 
 
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Contents 
Chapter 8. Service Menus  
8.1 Introduction........................................................................\
.8-1 
8.2 Entering the Service View menu.............................................8-1 
8.2.1 Service View menu and data......................................................................8-2 
8.2.2 Service menu structure........................................................................\
......8-3 
8.3 Monitor menu......................................................................8-4 
8.3.1 Voltages menu and data........................................................................\
....8-4 
8.3.2 Communication menu and data.................................................................8-5 
Communication – Remote Access menu.....................................................8-6 
8.3.3 Configuration menu........................................................................\
...........8-7 
8.3.4 Watchdog Tests menu........................................................................\
........8-8 
8.3.5 Country Settings menu........................................................................\
.......8-9 
8.4 Keyboard menu and data.....................................................8-10 
Service Data screen........................................................................\
.........8-10 
8.5 Modules menu...................................................................8-11 
8.6 Gas Unit menu...................................................................8-12 
8.6.1 General menu and data........................................................................\
...8-12 
General Service Data screen....................................................................8-12 
8.6.2 Gases menu and data........................................................................\
......8-13 
Gases Service Data screen.......................................................................8-13 
8.6.3 Spirometry menu and data.......................................................................8-14 
Spirometry calibration........................................................................\
.....8-15 
Spirometry Service Data screen................................................................8-15 
8.7 ESTP : ECG service menu and data.......................................8-16 
Service Data screen........................................................................\
.........8-16 
8.7.1 ECG Setup menu........................................................................\
.............8-17 
8.8 ESTP : STP service menu and data........................................8-18 
Service Data screen........................................................................\
.........8-18 
8.8.1 STP Calibrations menu........................................................................\
.....8-19 
8.9 NIBP service menu, data, and checks...................................8-20 
Service Data screen........................................................................\
.........8-20 
8.9.1 NIBP Demo menu........................................................................\
............8-21 
8.9.2 NIBP Calibration menu........................................................................\
.....8-22 
Active leak test........................................................................\
................8-22 
8.9.3 NIBP Safety Valve menu and data.............................................................8-23 
Safety Valve Data screen........................................................................\
.8-23 
Safety valve test (adult/infant).................................................................8-23 
  
						

							
Cardiocap/5 Technical Reference Manual 
8.9.4 NIBP Pulse Valve menu and data .............................................................. 8-24 
Pulse Valve Data  screen........................................................................\
... 8-24 
Pulse valve  test........................................................................\
................ 8-24 
8.9.5 NIBP Buttons/Leds me nu and data ........................................................... 8-25 
Buttons/Leds Data  screen........................................................................\
 8-25 
8.9.6 NIBP Pneumatics me nu and data.............................................................. 8-26 
Pneumatics Data  screen........................................................................\
.. 8-26 
Watchdog BEEP  check ........................................................................\
..... 8-26 
Interval 20 mmHg ->  185 mmHg check ..................................................... 8-27 
8.9.7 NIBP Watchdog me nu and data ................................................................ 8-27 
Watchdog Data  screen ........................................................................\
..... 8-27 
Watchdog timer tests (a dult and infant) ..................................................... 8-27 
8.10 NMT menu and  data............................................................ 8-28 
NMT Service Data  screen........................................................................\
.. 8-28 
8.10.1 NMT Setup Menu ........................................................................\
............. 8-30 
8.11 M-NSAT menu and data (N-XNSAT or N-XOSAT options).......... 8-31 
8.12 More Module s menu ........................................................... 8-32 
8.12.1 Memory Module menu and  Module Status data ......................................... 8-33 
Module Status screen ........................................................................\
...... 8-33 
8.12.2 Memory Module menu and Communication data ....................................... 8-34 
Communication screen ........................................................................\
.... 8-34 
8.13 Service Log menu ............................................................... 8-35 
Error History ........................................................................\
.................... 8-35 
Event History ........................................................................\
................... 8-36 
Alarm History........................................................................\
................... 8-36 
Table of Figures 
Figure 8-1. Service  menu structure ........................................................................\
........... 8-3 
 
  
						

							
Service Menus 
8. SERVICE MENUS 
8.1 Introduction 
This chapter contains illustrations and descriptions of the service menus that are accessed from the 
Service View menu. You use the service menus to check monitor functions and troubleshoot during 
possible failures. 
The Cardiocap/5 service menu structure is similar to the service menu structure used in other Datex-
Ohmeda monitors. As a result, some items in the menus are not used in the Cardiocap/5. The service 
data values displayed in the menu illustrations may differ depending on the monitor configuration. 
NOTE: There is no service menu for the recorder (N-XREC option). 
8.2 Entering the Service View menu 
To enter the Service View menu: 
1. Press the ComWheel and select Monitor Setup. 
2. Select Install/Service and enter the password (16-4-34). 
3. Select Service and enter the password (26-23-8). 
    
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Cardiocap/5 Technical Reference Manual 
8.2.1 Service View menu and data 
 
Scroll Vers Select this option, then turn the ComWheel to scroll the field on the right side. –
More– indicates there are more lines to be viewed. 
Record Vers Prints the software versions and other information on the recorder paper. 
Sw version / Unit id screen 
The field on the right shows the monitor software version, serial number (not in illustration), monitor 
configuration, and the release dates of different parts of the monitor. It also shows control numbers of 
measuring boards and serial numbers of measurement units (if available). 
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Service Menus 
8.2.2 Service menu structure 
NOTE:  Menu items marked with * are not used in Cardiocap/5. 
 
Figure 8-1. Service menu structure 
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Cardiocap/5 Technical Reference Manual 
8.3 Monitor menu 
 
To enter this service menu from the 
Service View menu, select Monitor. 
Factory Reset Restores factory default settings and clears data memories. Select this option if 
monitor software is replaced or if the SRAM/Timekeeper IC or its battery is replaced. 
8.3.1 Voltages menu and data 
 
To enter this service menu from the 
Service View menu: 
1. Select Monitor. 
2. Select Voltages.  
Voltages Voltages measured by the CPU board. These values are used during the planned 
maintenance and service checks to check each supply voltage. The numbers shown 
here are directive only. To get accurate voltage values these must be measured 
according to the instructions for the Planned Maintenance Check in chapter 3. 
Temp (°C) The internal temperature measured by the temperature sensor on the DC/DC board. 
8-4